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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/graphics/gpu/webgl_image_conversion.h"
#include <limits>
#include <memory>
#include "base/compiler_specific.h"
#include "base/numerics/checked_math.h"
#include "build/build_config.h"
#include "third_party/blink/renderer/platform/graphics/cpu/arm/webgl_image_conversion_neon.h"
#include "third_party/blink/renderer/platform/graphics/cpu/mips/webgl_image_conversion_msa.h"
#include "third_party/blink/renderer/platform/graphics/cpu/x86/webgl_image_conversion_sse.h"
#include "third_party/blink/renderer/platform/graphics/image_observer.h"
#include "third_party/blink/renderer/platform/graphics/skia/skia_utils.h"
#include "third_party/blink/renderer/platform/image-decoders/image_decoder.h"
#include "third_party/skia/include/core/SkImage.h"
namespace blink {
namespace {
const float kMaxInt8Value = INT8_MAX;
const float kMaxUInt8Value = UINT8_MAX;
const float kMaxInt16Value = INT16_MAX;
const float kMaxUInt16Value = UINT16_MAX;
const double kMaxInt32Value = INT32_MAX;
const double kMaxUInt32Value = UINT32_MAX;
int8_t ClampMin(int8_t value) {
const static int8_t kMinInt8Value = INT8_MIN + 1;
return value < kMinInt8Value ? kMinInt8Value : value;
}
int16_t ClampMin(int16_t value) {
const static int16_t kMinInt16Value = INT16_MIN + 1;
return value < kMinInt16Value ? kMinInt16Value : value;
}
int32_t ClampMin(int32_t value) {
const static int32_t kMinInt32Value = INT32_MIN + 1;
return value < kMinInt32Value ? kMinInt32Value : value;
}
template <class T>
T ClampImpl(const float& v, const T& lo, const T& hi) {
return (v < lo) ? lo : ((hi < v) ? hi : static_cast<T>(v));
}
template <class T>
T ClampFloat(float value) {
if (std::numeric_limits<T>::is_signed) {
// Generate an equal number of positive and negative values. Two's
// complement has one more negative number than positive number.
return ClampImpl<T>(value, std::numeric_limits<T>::min() + 1,
std::numeric_limits<T>::max());
} else {
return ClampImpl<T>(value, std::numeric_limits<T>::min(),
std::numeric_limits<T>::max());
}
}
template <class T>
T ClampAndScaleFloat(float value) {
return ClampFloat<T>(value * std::numeric_limits<T>::max());
}
// Return kDataFormatNumFormats if format/type combination is invalid.
WebGLImageConversion::DataFormat GetDataFormat(GLenum destination_format,
GLenum destination_type) {
WebGLImageConversion::DataFormat dst_format =
WebGLImageConversion::kDataFormatRGBA8;
switch (destination_type) {
case GL_BYTE:
switch (destination_format) {
case GL_RED:
case GL_RED_INTEGER:
dst_format = WebGLImageConversion::kDataFormatR8_S;
break;
case GL_RG:
case GL_RG_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRG8_S;
break;
case GL_RGB:
case GL_RGB_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGB8_S;
break;
case GL_RGBA:
case GL_RGBA_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGBA8_S;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_UNSIGNED_BYTE:
switch (destination_format) {
case GL_RGB:
case GL_RGB_INTEGER:
case GL_SRGB_EXT:
dst_format = WebGLImageConversion::kDataFormatRGB8;
break;
case GL_RGBA:
case GL_RGBA_INTEGER:
case GL_SRGB_ALPHA_EXT:
dst_format = WebGLImageConversion::kDataFormatRGBA8;
break;
case GL_ALPHA:
dst_format = WebGLImageConversion::kDataFormatA8;
break;
case GL_LUMINANCE:
case GL_RED:
case GL_RED_INTEGER:
dst_format = WebGLImageConversion::kDataFormatR8;
break;
case GL_RG:
case GL_RG_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRG8;
break;
case GL_LUMINANCE_ALPHA:
dst_format = WebGLImageConversion::kDataFormatRA8;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_SHORT:
switch (destination_format) {
case GL_RED_INTEGER:
dst_format = WebGLImageConversion::kDataFormatR16_S;
break;
case GL_RG_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRG16_S;
break;
case GL_RGB_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGB16_S;
break;
case GL_RGBA_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGBA16_S;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_UNSIGNED_SHORT:
switch (destination_format) {
case GL_RED_INTEGER:
dst_format = WebGLImageConversion::kDataFormatR16;
break;
case GL_DEPTH_COMPONENT:
dst_format = WebGLImageConversion::kDataFormatD16;
break;
case GL_RG_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRG16;
break;
case GL_RGB_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGB16;
break;
case GL_RGBA_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGBA16;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_INT:
switch (destination_format) {
case GL_RED_INTEGER:
dst_format = WebGLImageConversion::kDataFormatR32_S;
break;
case GL_RG_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRG32_S;
break;
case GL_RGB_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGB32_S;
break;
case GL_RGBA_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGBA32_S;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_UNSIGNED_INT:
switch (destination_format) {
case GL_RED_INTEGER:
dst_format = WebGLImageConversion::kDataFormatR32;
break;
case GL_DEPTH_COMPONENT:
dst_format = WebGLImageConversion::kDataFormatD32;
break;
case GL_RG_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRG32;
break;
case GL_RGB_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGB32;
break;
case GL_RGBA_INTEGER:
dst_format = WebGLImageConversion::kDataFormatRGBA32;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_HALF_FLOAT_OES: // OES_texture_half_float
case GL_HALF_FLOAT:
switch (destination_format) {
case GL_RGBA:
dst_format = WebGLImageConversion::kDataFormatRGBA16F;
break;
case GL_RGB:
dst_format = WebGLImageConversion::kDataFormatRGB16F;
break;
case GL_RG:
dst_format = WebGLImageConversion::kDataFormatRG16F;
break;
case GL_ALPHA:
dst_format = WebGLImageConversion::kDataFormatA16F;
break;
case GL_LUMINANCE:
case GL_RED:
dst_format = WebGLImageConversion::kDataFormatR16F;
break;
case GL_LUMINANCE_ALPHA:
dst_format = WebGLImageConversion::kDataFormatRA16F;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_FLOAT: // OES_texture_float
switch (destination_format) {
case GL_RGBA:
dst_format = WebGLImageConversion::kDataFormatRGBA32F;
break;
case GL_RGB:
dst_format = WebGLImageConversion::kDataFormatRGB32F;
break;
case GL_RG:
dst_format = WebGLImageConversion::kDataFormatRG32F;
break;
case GL_ALPHA:
dst_format = WebGLImageConversion::kDataFormatA32F;
break;
case GL_LUMINANCE:
case GL_RED:
dst_format = WebGLImageConversion::kDataFormatR32F;
break;
case GL_DEPTH_COMPONENT:
dst_format = WebGLImageConversion::kDataFormatD32F;
break;
case GL_LUMINANCE_ALPHA:
dst_format = WebGLImageConversion::kDataFormatRA32F;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
break;
case GL_UNSIGNED_SHORT_4_4_4_4:
dst_format = WebGLImageConversion::kDataFormatRGBA4444;
break;
case GL_UNSIGNED_SHORT_5_5_5_1:
dst_format = WebGLImageConversion::kDataFormatRGBA5551;
break;
case GL_UNSIGNED_SHORT_5_6_5:
dst_format = WebGLImageConversion::kDataFormatRGB565;
break;
case GL_UNSIGNED_INT_5_9_9_9_REV:
dst_format = WebGLImageConversion::kDataFormatRGB5999;
break;
case GL_UNSIGNED_INT_24_8:
dst_format = WebGLImageConversion::kDataFormatDS24_8;
break;
case GL_UNSIGNED_INT_10F_11F_11F_REV:
dst_format = WebGLImageConversion::kDataFormatRGB10F11F11F;
break;
case GL_UNSIGNED_INT_2_10_10_10_REV:
dst_format = WebGLImageConversion::kDataFormatRGBA2_10_10_10;
break;
default:
return WebGLImageConversion::kDataFormatNumFormats;
}
return dst_format;
}
// The following Float to Half-Float conversion code is from the implementation
// of http://www.fox-toolkit.org/ftp/fasthalffloatconversion.pdf , "Fast Half
// Float Conversions" by Jeroen van der Zijp, November 2008 (Revised September
// 2010). Specially, the basetable[512] and shifttable[512] are generated as
// follows:
/*
unsigned short basetable[512];
unsigned char shifttable[512];
void generatetables(){
unsigned int i;
int e;
for (i = 0; i < 256; ++i){
e = i - 127;
if (e < -24){ // Very small numbers map to zero
basetable[i | 0x000] = 0x0000;
basetable[i | 0x100] = 0x8000;
shifttable[i | 0x000] = 24;
shifttable[i | 0x100] = 24;
}
else if (e < -14) { // Small numbers map to denorms
basetable[i | 0x000] = (0x0400>>(-e-14));
basetable[i | 0x100] = (0x0400>>(-e-14)) | 0x8000;
shifttable[i | 0x000] = -e-1;
shifttable[i | 0x100] = -e-1;
}
else if (e <= 15){ // Normal numbers just lose precision
basetable[i | 0x000] = ((e+15)<<10);
basetable[i| 0x100] = ((e+15)<<10) | 0x8000;
shifttable[i|0x000] = 13;
shifttable[i|0x100] = 13;
}
else if (e<128){ // Large numbers map to Infinity
basetable[i|0x000] = 0x7C00;
basetable[i|0x100] = 0xFC00;
shifttable[i|0x000] = 24;
shifttable[i|0x100] = 24;
}
else { // Infinity and NaN's stay Infinity and NaN's
basetable[i|0x000] = 0x7C00;
basetable[i|0x100] = 0xFC00;
shifttable[i|0x000] = 13;
shifttable[i|0x100] = 13;
}
}
}
*/
const uint16_t g_base_table[512] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 1, 2, 4, 8, 16, 32, 64,
128, 256, 512, 1024, 2048, 3072, 4096, 5120, 6144, 7168, 8192,
9216, 10240, 11264, 12288, 13312, 14336, 15360, 16384, 17408, 18432, 19456,
20480, 21504, 22528, 23552, 24576, 25600, 26624, 27648, 28672, 29696, 30720,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744, 31744,
31744, 31744, 31744, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
32768, 32768, 32768, 32768, 32768, 32768, 32768, 32769, 32770, 32772, 32776,
32784, 32800, 32832, 32896, 33024, 33280, 33792, 34816, 35840, 36864, 37888,
38912, 39936, 40960, 41984, 43008, 44032, 45056, 46080, 47104, 48128, 49152,
50176, 51200, 52224, 53248, 54272, 55296, 56320, 57344, 58368, 59392, 60416,
61440, 62464, 63488, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512, 64512,
64512, 64512, 64512, 64512, 64512, 64512};
const unsigned char g_shift_table[512] = {
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 13, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 22,
21, 20, 19, 18, 17, 16, 15, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 13};
uint16_t ConvertFloatToHalfFloat(float f) {
unsigned temp = *(reinterpret_cast<unsigned*>(&f));
uint16_t signexp = (temp >> 23) & 0x1ff;
return g_base_table[signexp] +
((temp & 0x007fffff) >> g_shift_table[signexp]);
}
// The mantissatable[2048], offsettable[64] and exponenttable[64] are
// generated as follows:
/*
unsigned int mantissatable[2048];
unsigned short offsettable[64];
unsigned int exponenttable[64];
unsigned int convertmantissa(unsigned int i) {
unsigned int m=i<<13; // Zero pad mantissa bits
unsigned int e=0; // Zero exponent
while(!(m&0x00800000)){ // While not normalized
e-=0x00800000; // Decrement exponent (1<<23)
m<<=1; // Shift mantissa
}
m&=~0x00800000; // Clear leading 1 bit
e+=0x38800000; // Adjust bias ((127-14)<<23)
return m | e; // Return combined number
}
void generatef16tof32tables() {
int i;
mantissatable[0] = 0;
for (i = 1; i <= 1023; ++i)
mantissatable[i] = convertmantissa(i);
for (i = 1024; i <= 2047; ++i)
mantissatable[i] = 0x38000000 + ((i-1024)<<13);
exponenttable[0] = 0;
exponenttable[32]= 0x80000000;
for (int i = 1; i <= 30; ++i)
exponenttable[i] = i<<23;
for (int i = 33; i <= 62; ++i)
exponenttable[i] = 0x80000000 + ((i-32)<<23);
exponenttable[31]= 0x47800000;
exponenttable[63]= 0xC7800000;
for (i = 0; i <= 63; ++i)
offsettable[i] = 1024;
offsettable[0] = 0;
offsettable[32] = 0;
}
*/
const uint32_t g_mantissa_table[2048] = {
0x0, 0x33800000, 0x34000000, 0x34400000, 0x34800000, 0x34a00000,
0x34c00000, 0x34e00000, 0x35000000, 0x35100000, 0x35200000, 0x35300000,
0x35400000, 0x35500000, 0x35600000, 0x35700000, 0x35800000, 0x35880000,
0x35900000, 0x35980000, 0x35a00000, 0x35a80000, 0x35b00000, 0x35b80000,
0x35c00000, 0x35c80000, 0x35d00000, 0x35d80000, 0x35e00000, 0x35e80000,
0x35f00000, 0x35f80000, 0x36000000, 0x36040000, 0x36080000, 0x360c0000,
0x36100000, 0x36140000, 0x36180000, 0x361c0000, 0x36200000, 0x36240000,
0x36280000, 0x362c0000, 0x36300000, 0x36340000, 0x36380000, 0x363c0000,
0x36400000, 0x36440000, 0x36480000, 0x364c0000, 0x36500000, 0x36540000,
0x36580000, 0x365c0000, 0x36600000, 0x36640000, 0x36680000, 0x366c0000,
0x36700000, 0x36740000, 0x36780000, 0x367c0000, 0x36800000, 0x36820000,
0x36840000, 0x36860000, 0x36880000, 0x368a0000, 0x368c0000, 0x368e0000,
0x36900000, 0x36920000, 0x36940000, 0x36960000, 0x36980000, 0x369a0000,
0x369c0000, 0x369e0000, 0x36a00000, 0x36a20000, 0x36a40000, 0x36a60000,
0x36a80000, 0x36aa0000, 0x36ac0000, 0x36ae0000, 0x36b00000, 0x36b20000,
0x36b40000, 0x36b60000, 0x36b80000, 0x36ba0000, 0x36bc0000, 0x36be0000,
0x36c00000, 0x36c20000, 0x36c40000, 0x36c60000, 0x36c80000, 0x36ca0000,
0x36cc0000, 0x36ce0000, 0x36d00000, 0x36d20000, 0x36d40000, 0x36d60000,
0x36d80000, 0x36da0000, 0x36dc0000, 0x36de0000, 0x36e00000, 0x36e20000,
0x36e40000, 0x36e60000, 0x36e80000, 0x36ea0000, 0x36ec0000, 0x36ee0000,
0x36f00000, 0x36f20000, 0x36f40000, 0x36f60000, 0x36f80000, 0x36fa0000,
0x36fc0000, 0x36fe0000, 0x37000000, 0x37010000, 0x37020000, 0x37030000,
0x37040000, 0x37050000, 0x37060000, 0x37070000, 0x37080000, 0x37090000,
0x370a0000, 0x370b0000, 0x370c0000, 0x370d0000, 0x370e0000, 0x370f0000,
0x37100000, 0x37110000, 0x37120000, 0x37130000, 0x37140000, 0x37150000,
0x37160000, 0x37170000, 0x37180000, 0x37190000, 0x371a0000, 0x371b0000,
0x371c0000, 0x371d0000, 0x371e0000, 0x371f0000, 0x37200000, 0x37210000,
0x37220000, 0x37230000, 0x37240000, 0x37250000, 0x37260000, 0x37270000,
0x37280000, 0x37290000, 0x372a0000, 0x372b0000, 0x372c0000, 0x372d0000,
0x372e0000, 0x372f0000, 0x37300000, 0x37310000, 0x37320000, 0x37330000,
0x37340000, 0x37350000, 0x37360000, 0x37370000, 0x37380000, 0x37390000,
0x373a0000, 0x373b0000, 0x373c0000, 0x373d0000, 0x373e0000, 0x373f0000,
0x37400000, 0x37410000, 0x37420000, 0x37430000, 0x37440000, 0x37450000,
0x37460000, 0x37470000, 0x37480000, 0x37490000, 0x374a0000, 0x374b0000,
0x374c0000, 0x374d0000, 0x374e0000, 0x374f0000, 0x37500000, 0x37510000,
0x37520000, 0x37530000, 0x37540000, 0x37550000, 0x37560000, 0x37570000,
0x37580000, 0x37590000, 0x375a0000, 0x375b0000, 0x375c0000, 0x375d0000,
0x375e0000, 0x375f0000, 0x37600000, 0x37610000, 0x37620000, 0x37630000,
0x37640000, 0x37650000, 0x37660000, 0x37670000, 0x37680000, 0x37690000,
0x376a0000, 0x376b0000, 0x376c0000, 0x376d0000, 0x376e0000, 0x376f0000,
0x37700000, 0x37710000, 0x37720000, 0x37730000, 0x37740000, 0x37750000,
0x37760000, 0x37770000, 0x37780000, 0x37790000, 0x377a0000, 0x377b0000,
0x377c0000, 0x377d0000, 0x377e0000, 0x377f0000, 0x37800000, 0x37808000,
0x37810000, 0x37818000, 0x37820000, 0x37828000, 0x37830000, 0x37838000,
0x37840000, 0x37848000, 0x37850000, 0x37858000, 0x37860000, 0x37868000,
0x37870000, 0x37878000, 0x37880000, 0x37888000, 0x37890000, 0x37898000,
0x378a0000, 0x378a8000, 0x378b0000, 0x378b8000, 0x378c0000, 0x378c8000,
0x378d0000, 0x378d8000, 0x378e0000, 0x378e8000, 0x378f0000, 0x378f8000,
0x37900000, 0x37908000, 0x37910000, 0x37918000, 0x37920000, 0x37928000,
0x37930000, 0x37938000, 0x37940000, 0x37948000, 0x37950000, 0x37958000,
0x37960000, 0x37968000, 0x37970000, 0x37978000, 0x37980000, 0x37988000,
0x37990000, 0x37998000, 0x379a0000, 0x379a8000, 0x379b0000, 0x379b8000,
0x379c0000, 0x379c8000, 0x379d0000, 0x379d8000, 0x379e0000, 0x379e8000,
0x379f0000, 0x379f8000, 0x37a00000, 0x37a08000, 0x37a10000, 0x37a18000,
0x37a20000, 0x37a28000, 0x37a30000, 0x37a38000, 0x37a40000, 0x37a48000,
0x37a50000, 0x37a58000, 0x37a60000, 0x37a68000, 0x37a70000, 0x37a78000,
0x37a80000, 0x37a88000, 0x37a90000, 0x37a98000, 0x37aa0000, 0x37aa8000,
0x37ab0000, 0x37ab8000, 0x37ac0000, 0x37ac8000, 0x37ad0000, 0x37ad8000,
0x37ae0000, 0x37ae8000, 0x37af0000, 0x37af8000, 0x37b00000, 0x37b08000,
0x37b10000, 0x37b18000, 0x37b20000, 0x37b28000, 0x37b30000, 0x37b38000,
0x37b40000, 0x37b48000, 0x37b50000, 0x37b58000, 0x37b60000, 0x37b68000,
0x37b70000, 0x37b78000, 0x37b80000, 0x37b88000, 0x37b90000, 0x37b98000,
0x37ba0000, 0x37ba8000, 0x37bb0000, 0x37bb8000, 0x37bc0000, 0x37bc8000,
0x37bd0000, 0x37bd8000, 0x37be0000, 0x37be8000, 0x37bf0000, 0x37bf8000,
0x37c00000, 0x37c08000, 0x37c10000, 0x37c18000, 0x37c20000, 0x37c28000,
0x37c30000, 0x37c38000, 0x37c40000, 0x37c48000, 0x37c50000, 0x37c58000,
0x37c60000, 0x37c68000, 0x37c70000, 0x37c78000, 0x37c80000, 0x37c88000,
0x37c90000, 0x37c98000, 0x37ca0000, 0x37ca8000, 0x37cb0000, 0x37cb8000,
0x37cc0000, 0x37cc8000, 0x37cd0000, 0x37cd8000, 0x37ce0000, 0x37ce8000,
0x37cf0000, 0x37cf8000, 0x37d00000, 0x37d08000, 0x37d10000, 0x37d18000,
0x37d20000, 0x37d28000, 0x37d30000, 0x37d38000, 0x37d40000, 0x37d48000,
0x37d50000, 0x37d58000, 0x37d60000, 0x37d68000, 0x37d70000, 0x37d78000,
0x37d80000, 0x37d88000, 0x37d90000, 0x37d98000, 0x37da0000, 0x37da8000,
0x37db0000, 0x37db8000, 0x37dc0000, 0x37dc8000, 0x37dd0000, 0x37dd8000,
0x37de0000, 0x37de8000, 0x37df0000, 0x37df8000, 0x37e00000, 0x37e08000,
0x37e10000, 0x37e18000, 0x37e20000, 0x37e28000, 0x37e30000, 0x37e38000,
0x37e40000, 0x37e48000, 0x37e50000, 0x37e58000, 0x37e60000, 0x37e68000,
0x37e70000, 0x37e78000, 0x37e80000, 0x37e88000, 0x37e90000, 0x37e98000,
0x37ea0000, 0x37ea8000, 0x37eb0000, 0x37eb8000, 0x37ec0000, 0x37ec8000,
0x37ed0000, 0x37ed8000, 0x37ee0000, 0x37ee8000, 0x37ef0000, 0x37ef8000,
0x37f00000, 0x37f08000, 0x37f10000, 0x37f18000, 0x37f20000, 0x37f28000,
0x37f30000, 0x37f38000, 0x37f40000, 0x37f48000, 0x37f50000, 0x37f58000,
0x37f60000, 0x37f68000, 0x37f70000, 0x37f78000, 0x37f80000, 0x37f88000,
0x37f90000, 0x37f98000, 0x37fa0000, 0x37fa8000, 0x37fb0000, 0x37fb8000,
0x37fc0000, 0x37fc8000, 0x37fd0000, 0x37fd8000, 0x37fe0000, 0x37fe8000,
0x37ff0000, 0x37ff8000, 0x38000000, 0x38004000, 0x38008000, 0x3800c000,
0x38010000, 0x38014000, 0x38018000, 0x3801c000, 0x38020000, 0x38024000,
0x38028000, 0x3802c000, 0x38030000, 0x38034000, 0x38038000, 0x3803c000,
0x38040000, 0x38044000, 0x38048000, 0x3804c000, 0x38050000, 0x38054000,
0x38058000, 0x3805c000, 0x38060000, 0x38064000, 0x38068000, 0x3806c000,
0x38070000, 0x38074000, 0x38078000, 0x3807c000, 0x38080000, 0x38084000,
0x38088000, 0x3808c000, 0x38090000, 0x38094000, 0x38098000, 0x3809c000,
0x380a0000, 0x380a4000, 0x380a8000, 0x380ac000, 0x380b0000, 0x380b4000,
0x380b8000, 0x380bc000, 0x380c0000, 0x380c4000, 0x380c8000, 0x380cc000,
0x380d0000, 0x380d4000, 0x380d8000, 0x380dc000, 0x380e0000, 0x380e4000,
0x380e8000, 0x380ec000, 0x380f0000, 0x380f4000, 0x380f8000, 0x380fc000,
0x38100000, 0x38104000, 0x38108000, 0x3810c000, 0x38110000, 0x38114000,
0x38118000, 0x3811c000, 0x38120000, 0x38124000, 0x38128000, 0x3812c000,
0x38130000, 0x38134000, 0x38138000, 0x3813c000, 0x38140000, 0x38144000,
0x38148000, 0x3814c000, 0x38150000, 0x38154000, 0x38158000, 0x3815c000,
0x38160000, 0x38164000, 0x38168000, 0x3816c000, 0x38170000, 0x38174000,
0x38178000, 0x3817c000, 0x38180000, 0x38184000, 0x38188000, 0x3818c000,
0x38190000, 0x38194000, 0x38198000, 0x3819c000, 0x381a0000, 0x381a4000,
0x381a8000, 0x381ac000, 0x381b0000, 0x381b4000, 0x381b8000, 0x381bc000,
0x381c0000, 0x381c4000, 0x381c8000, 0x381cc000, 0x381d0000, 0x381d4000,
0x381d8000, 0x381dc000, 0x381e0000, 0x381e4000, 0x381e8000, 0x381ec000,
0x381f0000, 0x381f4000, 0x381f8000, 0x381fc000, 0x38200000, 0x38204000,
0x38208000, 0x3820c000, 0x38210000, 0x38214000, 0x38218000, 0x3821c000,
0x38220000, 0x38224000, 0x38228000, 0x3822c000, 0x38230000, 0x38234000,
0x38238000, 0x3823c000, 0x38240000, 0x38244000, 0x38248000, 0x3824c000,
0x38250000, 0x38254000, 0x38258000, 0x3825c000, 0x38260000, 0x38264000,
0x38268000, 0x3826c000, 0x38270000, 0x38274000, 0x38278000, 0x3827c000,
0x38280000, 0x38284000, 0x38288000, 0x3828c000, 0x38290000, 0x38294000,
0x38298000, 0x3829c000, 0x382a0000, 0x382a4000, 0x382a8000, 0x382ac000,
0x382b0000, 0x382b4000, 0x382b8000, 0x382bc000, 0x382c0000, 0x382c4000,
0x382c8000, 0x382cc000, 0x382d0000, 0x382d4000, 0x382d8000, 0x382dc000,
0x382e0000, 0x382e4000, 0x382e8000, 0x382ec000, 0x382f0000, 0x382f4000,
0x382f8000, 0x382fc000, 0x38300000, 0x38304000, 0x38308000, 0x3830c000,
0x38310000, 0x38314000, 0x38318000, 0x3831c000, 0x38320000, 0x38324000,
0x38328000, 0x3832c000, 0x38330000, 0x38334000, 0x38338000, 0x3833c000,
0x38340000, 0x38344000, 0x38348000, 0x3834c000, 0x38350000, 0x38354000,
0x38358000, 0x3835c000, 0x38360000, 0x38364000, 0x38368000, 0x3836c000,
0x38370000, 0x38374000, 0x38378000, 0x3837c000, 0x38380000, 0x38384000,
0x38388000, 0x3838c000, 0x38390000, 0x38394000, 0x38398000, 0x3839c000,
0x383a0000, 0x383a4000, 0x383a8000, 0x383ac000, 0x383b0000, 0x383b4000,
0x383b8000, 0x383bc000, 0x383c0000, 0x383c4000, 0x383c8000, 0x383cc000,
0x383d0000, 0x383d4000, 0x383d8000, 0x383dc000, 0x383e0000, 0x383e4000,
0x383e8000, 0x383ec000, 0x383f0000, 0x383f4000, 0x383f8000, 0x383fc000,
0x38400000, 0x38404000, 0x38408000, 0x3840c000, 0x38410000, 0x38414000,
0x38418000, 0x3841c000, 0x38420000, 0x38424000, 0x38428000, 0x3842c000,
0x38430000, 0x38434000, 0x38438000, 0x3843c000, 0x38440000, 0x38444000,
0x38448000, 0x3844c000, 0x38450000, 0x38454000, 0x38458000, 0x3845c000,
0x38460000, 0x38464000, 0x38468000, 0x3846c000, 0x38470000, 0x38474000,
0x38478000, 0x3847c000, 0x38480000, 0x38484000, 0x38488000, 0x3848c000,
0x38490000, 0x38494000, 0x38498000, 0x3849c000, 0x384a0000, 0x384a4000,
0x384a8000, 0x384ac000, 0x384b0000, 0x384b4000, 0x384b8000, 0x384bc000,
0x384c0000, 0x384c4000, 0x384c8000, 0x384cc000, 0x384d0000, 0x384d4000,
0x384d8000, 0x384dc000, 0x384e0000, 0x384e4000, 0x384e8000, 0x384ec000,
0x384f0000, 0x384f4000, 0x384f8000, 0x384fc000, 0x38500000, 0x38504000,
0x38508000, 0x3850c000, 0x38510000, 0x38514000, 0x38518000, 0x3851c000,
0x38520000, 0x38524000, 0x38528000, 0x3852c000, 0x38530000, 0x38534000,
0x38538000, 0x3853c000, 0x38540000, 0x38544000, 0x38548000, 0x3854c000,
0x38550000, 0x38554000, 0x38558000, 0x3855c000, 0x38560000, 0x38564000,
0x38568000, 0x3856c000, 0x38570000, 0x38574000, 0x38578000, 0x3857c000,
0x38580000, 0x38584000, 0x38588000, 0x3858c000, 0x38590000, 0x38594000,
0x38598000, 0x3859c000, 0x385a0000, 0x385a4000, 0x385a8000, 0x385ac000,
0x385b0000, 0x385b4000, 0x385b8000, 0x385bc000, 0x385c0000, 0x385c4000,
0x385c8000, 0x385cc000, 0x385d0000, 0x385d4000, 0x385d8000, 0x385dc000,
0x385e0000, 0x385e4000, 0x385e8000, 0x385ec000, 0x385f0000, 0x385f4000,
0x385f8000, 0x385fc000, 0x38600000, 0x38604000, 0x38608000, 0x3860c000,
0x38610000, 0x38614000, 0x38618000, 0x3861c000, 0x38620000, 0x38624000,
0x38628000, 0x3862c000, 0x38630000, 0x38634000, 0x38638000, 0x3863c000,
0x38640000, 0x38644000, 0x38648000, 0x3864c000, 0x38650000, 0x38654000,
0x38658000, 0x3865c000, 0x38660000, 0x38664000, 0x38668000, 0x3866c000,
0x38670000, 0x38674000, 0x38678000, 0x3867c000, 0x38680000, 0x38684000,
0x38688000, 0x3868c000, 0x38690000, 0x38694000, 0x38698000, 0x3869c000,
0x386a0000, 0x386a4000, 0x386a8000, 0x386ac000, 0x386b0000, 0x386b4000,
0x386b8000, 0x386bc000, 0x386c0000, 0x386c4000, 0x386c8000, 0x386cc000,
0x386d0000, 0x386d4000, 0x386d8000, 0x386dc000, 0x386e0000, 0x386e4000,
0x386e8000, 0x386ec000, 0x386f0000, 0x386f4000, 0x386f8000, 0x386fc000,
0x38700000, 0x38704000, 0x38708000, 0x3870c000, 0x38710000, 0x38714000,
0x38718000, 0x3871c000, 0x38720000, 0x38724000, 0x38728000, 0x3872c000,
0x38730000, 0x38734000, 0x38738000, 0x3873c000, 0x38740000, 0x38744000,
0x38748000, 0x3874c000, 0x38750000, 0x38754000, 0x38758000, 0x3875c000,
0x38760000, 0x38764000, 0x38768000, 0x3876c000, 0x38770000, 0x38774000,
0x38778000, 0x3877c000, 0x38780000, 0x38784000, 0x38788000, 0x3878c000,
0x38790000, 0x38794000, 0x38798000, 0x3879c000, 0x387a0000, 0x387a4000,
0x387a8000, 0x387ac000, 0x387b0000, 0x387b4000, 0x387b8000, 0x387bc000,
0x387c0000, 0x387c4000, 0x387c8000, 0x387cc000, 0x387d0000, 0x387d4000,
0x387d8000, 0x387dc000, 0x387e0000, 0x387e4000, 0x387e8000, 0x387ec000,
0x387f0000, 0x387f4000, 0x387f8000, 0x387fc000, 0x38000000, 0x38002000,
0x38004000, 0x38006000, 0x38008000, 0x3800a000, 0x3800c000, 0x3800e000,
0x38010000, 0x38012000, 0x38014000, 0x38016000, 0x38018000, 0x3801a000,
0x3801c000, 0x3801e000, 0x38020000, 0x38022000, 0x38024000, 0x38026000,
0x38028000, 0x3802a000, 0x3802c000, 0x3802e000, 0x38030000, 0x38032000,
0x38034000, 0x38036000, 0x38038000, 0x3803a000, 0x3803c000, 0x3803e000,
0x38040000, 0x38042000, 0x38044000, 0x38046000, 0x38048000, 0x3804a000,
0x3804c000, 0x3804e000, 0x38050000, 0x38052000, 0x38054000, 0x38056000,
0x38058000, 0x3805a000, 0x3805c000, 0x3805e000, 0x38060000, 0x38062000,
0x38064000, 0x38066000, 0x38068000, 0x3806a000, 0x3806c000, 0x3806e000,
0x38070000, 0x38072000, 0x38074000, 0x38076000, 0x38078000, 0x3807a000,
0x3807c000, 0x3807e000, 0x38080000, 0x38082000, 0x38084000, 0x38086000,
0x38088000, 0x3808a000, 0x3808c000, 0x3808e000, 0x38090000, 0x38092000,
0x38094000, 0x38096000, 0x38098000, 0x3809a000, 0x3809c000, 0x3809e000,
0x380a0000, 0x380a2000, 0x380a4000, 0x380a6000, 0x380a8000, 0x380aa000,
0x380ac000, 0x380ae000, 0x380b0000, 0x380b2000, 0x380b4000, 0x380b6000,
0x380b8000, 0x380ba000, 0x380bc000, 0x380be000, 0x380c0000, 0x380c2000,
0x380c4000, 0x380c6000, 0x380c8000, 0x380ca000, 0x380cc000, 0x380ce000,
0x380d0000, 0x380d2000, 0x380d4000, 0x380d6000, 0x380d8000, 0x380da000,
0x380dc000, 0x380de000, 0x380e0000, 0x380e2000, 0x380e4000, 0x380e6000,
0x380e8000, 0x380ea000, 0x380ec000, 0x380ee000, 0x380f0000, 0x380f2000,
0x380f4000, 0x380f6000, 0x380f8000, 0x380fa000, 0x380fc000, 0x380fe000,
0x38100000, 0x38102000, 0x38104000, 0x38106000, 0x38108000, 0x3810a000,
0x3810c000, 0x3810e000, 0x38110000, 0x38112000, 0x38114000, 0x38116000,
0x38118000, 0x3811a000, 0x3811c000, 0x3811e000, 0x38120000, 0x38122000,
0x38124000, 0x38126000, 0x38128000, 0x3812a000, 0x3812c000, 0x3812e000,
0x38130000, 0x38132000, 0x38134000, 0x38136000, 0x38138000, 0x3813a000,
0x3813c000, 0x3813e000, 0x38140000, 0x38142000, 0x38144000, 0x38146000,
0x38148000, 0x3814a000, 0x3814c000, 0x3814e000, 0x38150000, 0x38152000,
0x38154000, 0x38156000, 0x38158000, 0x3815a000, 0x3815c000, 0x3815e000,
0x38160000, 0x38162000, 0x38164000, 0x38166000, 0x38168000, 0x3816a000,
0x3816c000, 0x3816e000, 0x38170000, 0x38172000, 0x38174000, 0x38176000,
0x38178000, 0x3817a000, 0x3817c000, 0x3817e000, 0x38180000, 0x38182000,
0x38184000, 0x38186000, 0x38188000, 0x3818a000, 0x3818c000, 0x3818e000,
0x38190000, 0x38192000, 0x38194000, 0x38196000, 0x38198000, 0x3819a000,
0x3819c000, 0x3819e000, 0x381a0000, 0x381a2000, 0x381a4000, 0x381a6000,
0x381a8000, 0x381aa000, 0x381ac000, 0x381ae000, 0x381b0000, 0x381b2000,
0x381b4000, 0x381b6000, 0x381b8000, 0x381ba000, 0x381bc000, 0x381be000,
0x381c0000, 0x381c2000, 0x381c4000, 0x381c6000, 0x381c8000, 0x381ca000,
0x381cc000, 0x381ce000, 0x381d0000, 0x381d2000, 0x381d4000, 0x381d6000,
0x381d8000, 0x381da000, 0x381dc000, 0x381de000, 0x381e0000, 0x381e2000,
0x381e4000, 0x381e6000, 0x381e8000, 0x381ea000, 0x381ec000, 0x381ee000,
0x381f0000, 0x381f2000, 0x381f4000, 0x381f6000, 0x381f8000, 0x381fa000,
0x381fc000, 0x381fe000, 0x38200000, 0x38202000, 0x38204000, 0x38206000,
0x38208000, 0x3820a000, 0x3820c000, 0x3820e000, 0x38210000, 0x38212000,
0x38214000, 0x38216000, 0x38218000, 0x3821a000, 0x3821c000, 0x3821e000,
0x38220000, 0x38222000, 0x38224000, 0x38226000, 0x38228000, 0x3822a000,
0x3822c000, 0x3822e000, 0x38230000, 0x38232000, 0x38234000, 0x38236000,
0x38238000, 0x3823a000, 0x3823c000, 0x3823e000, 0x38240000, 0x38242000,
0x38244000, 0x38246000, 0x38248000, 0x3824a000, 0x3824c000, 0x3824e000,
0x38250000, 0x38252000, 0x38254000, 0x38256000, 0x38258000, 0x3825a000,
0x3825c000, 0x3825e000, 0x38260000, 0x38262000, 0x38264000, 0x38266000,
0x38268000, 0x3826a000, 0x3826c000, 0x3826e000, 0x38270000, 0x38272000,
0x38274000, 0x38276000, 0x38278000, 0x3827a000, 0x3827c000, 0x3827e000,
0x38280000, 0x38282000, 0x38284000, 0x38286000, 0x38288000, 0x3828a000,
0x3828c000, 0x3828e000, 0x38290000, 0x38292000, 0x38294000, 0x38296000,
0x38298000, 0x3829a000, 0x3829c000, 0x3829e000, 0x382a0000, 0x382a2000,
0x382a4000, 0x382a6000, 0x382a8000, 0x382aa000, 0x382ac000, 0x382ae000,
0x382b0000, 0x382b2000, 0x382b4000, 0x382b6000, 0x382b8000, 0x382ba000,
0x382bc000, 0x382be000, 0x382c0000, 0x382c2000, 0x382c4000, 0x382c6000,
0x382c8000, 0x382ca000, 0x382cc000, 0x382ce000, 0x382d0000, 0x382d2000,
0x382d4000, 0x382d6000, 0x382d8000, 0x382da000, 0x382dc000, 0x382de000,
0x382e0000, 0x382e2000, 0x382e4000, 0x382e6000, 0x382e8000, 0x382ea000,
0x382ec000, 0x382ee000, 0x382f0000, 0x382f2000, 0x382f4000, 0x382f6000,
0x382f8000, 0x382fa000, 0x382fc000, 0x382fe000, 0x38300000, 0x38302000,
0x38304000, 0x38306000, 0x38308000, 0x3830a000, 0x3830c000, 0x3830e000,
0x38310000, 0x38312000, 0x38314000, 0x38316000, 0x38318000, 0x3831a000,
0x3831c000, 0x3831e000, 0x38320000, 0x38322000, 0x38324000, 0x38326000,
0x38328000, 0x3832a000, 0x3832c000, 0x3832e000, 0x38330000, 0x38332000,
0x38334000, 0x38336000, 0x38338000, 0x3833a000, 0x3833c000, 0x3833e000,
0x38340000, 0x38342000, 0x38344000, 0x38346000, 0x38348000, 0x3834a000,
0x3834c000, 0x3834e000, 0x38350000, 0x38352000, 0x38354000, 0x38356000,
0x38358000, 0x3835a000, 0x3835c000, 0x3835e000, 0x38360000, 0x38362000,
0x38364000, 0x38366000, 0x38368000, 0x3836a000, 0x3836c000, 0x3836e000,
0x38370000, 0x38372000, 0x38374000, 0x38376000, 0x38378000, 0x3837a000,
0x3837c000, 0x3837e000, 0x38380000, 0x38382000, 0x38384000, 0x38386000,
0x38388000, 0x3838a000, 0x3838c000, 0x3838e000, 0x38390000, 0x38392000,
0x38394000, 0x38396000, 0x38398000, 0x3839a000, 0x3839c000, 0x3839e000,
0x383a0000, 0x383a2000, 0x383a4000, 0x383a6000, 0x383a8000, 0x383aa000,
0x383ac000, 0x383ae000, 0x383b0000, 0x383b2000, 0x383b4000, 0x383b6000,
0x383b8000, 0x383ba000, 0x383bc000, 0x383be000, 0x383c0000, 0x383c2000,
0x383c4000, 0x383c6000, 0x383c8000, 0x383ca000, 0x383cc000, 0x383ce000,
0x383d0000, 0x383d2000, 0x383d4000, 0x383d6000, 0x383d8000, 0x383da000,
0x383dc000, 0x383de000, 0x383e0000, 0x383e2000, 0x383e4000, 0x383e6000,
0x383e8000, 0x383ea000, 0x383ec000, 0x383ee000, 0x383f0000, 0x383f2000,
0x383f4000, 0x383f6000, 0x383f8000, 0x383fa000, 0x383fc000, 0x383fe000,
0x38400000, 0x38402000, 0x38404000, 0x38406000, 0x38408000, 0x3840a000,
0x3840c000, 0x3840e000, 0x38410000, 0x38412000, 0x38414000, 0x38416000,
0x38418000, 0x3841a000, 0x3841c000, 0x3841e000, 0x38420000, 0x38422000,
0x38424000, 0x38426000, 0x38428000, 0x3842a000, 0x3842c000, 0x3842e000,
0x38430000, 0x38432000, 0x38434000, 0x38436000, 0x38438000, 0x3843a000,
0x3843c000, 0x3843e000, 0x38440000, 0x38442000, 0x38444000, 0x38446000,
0x38448000, 0x3844a000, 0x3844c000, 0x3844e000, 0x38450000, 0x38452000,
0x38454000, 0x38456000, 0x38458000, 0x3845a000, 0x3845c000, 0x3845e000,
0x38460000, 0x38462000, 0x38464000, 0x38466000, 0x38468000, 0x3846a000,
0x3846c000, 0x3846e000, 0x38470000, 0x38472000, 0x38474000, 0x38476000,
0x38478000, 0x3847a000, 0x3847c000, 0x3847e000, 0x38480000, 0x38482000,
0x38484000, 0x38486000, 0x38488000, 0x3848a000, 0x3848c000, 0x3848e000,
0x38490000, 0x38492000, 0x38494000, 0x38496000, 0x38498000, 0x3849a000,
0x3849c000, 0x3849e000, 0x384a0000, 0x384a2000, 0x384a4000, 0x384a6000,
0x384a8000, 0x384aa000, 0x384ac000, 0x384ae000, 0x384b0000, 0x384b2000,
0x384b4000, 0x384b6000, 0x384b8000, 0x384ba000, 0x384bc000, 0x384be000,
0x384c0000, 0x384c2000, 0x384c4000, 0x384c6000, 0x384c8000, 0x384ca000,
0x384cc000, 0x384ce000, 0x384d0000, 0x384d2000, 0x384d4000, 0x384d6000,
0x384d8000, 0x384da000, 0x384dc000, 0x384de000, 0x384e0000, 0x384e2000,
0x384e4000, 0x384e6000, 0x384e8000, 0x384ea000, 0x384ec000, 0x384ee000,
0x384f0000, 0x384f2000, 0x384f4000, 0x384f6000, 0x384f8000, 0x384fa000,
0x384fc000, 0x384fe000, 0x38500000, 0x38502000, 0x38504000, 0x38506000,
0x38508000, 0x3850a000, 0x3850c000, 0x3850e000, 0x38510000, 0x38512000,
0x38514000, 0x38516000, 0x38518000, 0x3851a000, 0x3851c000, 0x3851e000,
0x38520000, 0x38522000, 0x38524000, 0x38526000, 0x38528000, 0x3852a000,
0x3852c000, 0x3852e000, 0x38530000, 0x38532000, 0x38534000, 0x38536000,
0x38538000, 0x3853a000, 0x3853c000, 0x3853e000, 0x38540000, 0x38542000,
0x38544000, 0x38546000, 0x38548000, 0x3854a000, 0x3854c000, 0x3854e000,
0x38550000, 0x38552000, 0x38554000, 0x38556000, 0x38558000, 0x3855a000,
0x3855c000, 0x3855e000, 0x38560000, 0x38562000, 0x38564000, 0x38566000,
0x38568000, 0x3856a000, 0x3856c000, 0x3856e000, 0x38570000, 0x38572000,
0x38574000, 0x38576000, 0x38578000, 0x3857a000, 0x3857c000, 0x3857e000,
0x38580000, 0x38582000, 0x38584000, 0x38586000, 0x38588000, 0x3858a000,
0x3858c000, 0x3858e000, 0x38590000, 0x38592000, 0x38594000, 0x38596000,
0x38598000, 0x3859a000, 0x3859c000, 0x3859e000, 0x385a0000, 0x385a2000,
0x385a4000, 0x385a6000, 0x385a8000, 0x385aa000, 0x385ac000, 0x385ae000,
0x385b0000, 0x385b2000, 0x385b4000, 0x385b6000, 0x385b8000, 0x385ba000,
0x385bc000, 0x385be000, 0x385c0000, 0x385c2000, 0x385c4000, 0x385c6000,
0x385c8000, 0x385ca000, 0x385cc000, 0x385ce000, 0x385d0000, 0x385d2000,
0x385d4000, 0x385d6000, 0x385d8000, 0x385da000, 0x385dc000, 0x385de000,
0x385e0000, 0x385e2000, 0x385e4000, 0x385e6000, 0x385e8000, 0x385ea000,
0x385ec000, 0x385ee000, 0x385f0000, 0x385f2000, 0x385f4000, 0x385f6000,
0x385f8000, 0x385fa000, 0x385fc000, 0x385fe000, 0x38600000, 0x38602000,
0x38604000, 0x38606000, 0x38608000, 0x3860a000, 0x3860c000, 0x3860e000,
0x38610000, 0x38612000, 0x38614000, 0x38616000, 0x38618000, 0x3861a000,
0x3861c000, 0x3861e000, 0x38620000, 0x38622000, 0x38624000, 0x38626000,
0x38628000, 0x3862a000, 0x3862c000, 0x3862e000, 0x38630000, 0x38632000,
0x38634000, 0x38636000, 0x38638000, 0x3863a000, 0x3863c000, 0x3863e000,
0x38640000, 0x38642000, 0x38644000, 0x38646000, 0x38648000, 0x3864a000,
0x3864c000, 0x3864e000, 0x38650000, 0x38652000, 0x38654000, 0x38656000,
0x38658000, 0x3865a000, 0x3865c000, 0x3865e000, 0x38660000, 0x38662000,
0x38664000, 0x38666000, 0x38668000, 0x3866a000, 0x3866c000, 0x3866e000,
0x38670000, 0x38672000, 0x38674000, 0x38676000, 0x38678000, 0x3867a000,
0x3867c000, 0x3867e000, 0x38680000, 0x38682000, 0x38684000, 0x38686000,
0x38688000, 0x3868a000, 0x3868c000, 0x3868e000, 0x38690000, 0x38692000,
0x38694000, 0x38696000, 0x38698000, 0x3869a000, 0x3869c000, 0x3869e000,
0x386a0000, 0x386a2000, 0x386a4000, 0x386a6000, 0x386a8000, 0x386aa000,
0x386ac000, 0x386ae000, 0x386b0000, 0x386b2000, 0x386b4000, 0x386b6000,
0x386b8000, 0x386ba000, 0x386bc000, 0x386be000, 0x386c0000, 0x386c2000,
0x386c4000, 0x386c6000, 0x386c8000, 0x386ca000, 0x386cc000, 0x386ce000,
0x386d0000, 0x386d2000, 0x386d4000, 0x386d6000, 0x386d8000, 0x386da000,
0x386dc000, 0x386de000, 0x386e0000, 0x386e2000, 0x386e4000, 0x386e6000,
0x386e8000, 0x386ea000, 0x386ec000, 0x386ee000, 0x386f0000, 0x386f2000,
0x386f4000, 0x386f6000, 0x386f8000, 0x386fa000, 0x386fc000, 0x386fe000,
0x38700000, 0x38702000, 0x38704000, 0x38706000, 0x38708000, 0x3870a000,
0x3870c000, 0x3870e000, 0x38710000, 0x38712000, 0x38714000, 0x38716000,
0x38718000, 0x3871a000, 0x3871c000, 0x3871e000, 0x38720000, 0x38722000,
0x38724000, 0x38726000, 0x38728000, 0x3872a000, 0x3872c000, 0x3872e000,
0x38730000, 0x38732000, 0x38734000, 0x38736000, 0x38738000, 0x3873a000,
0x3873c000, 0x3873e000, 0x38740000, 0x38742000, 0x38744000, 0x38746000,
0x38748000, 0x3874a000, 0x3874c000, 0x3874e000, 0x38750000, 0x38752000,
0x38754000, 0x38756000, 0x38758000, 0x3875a000, 0x3875c000, 0x3875e000,
0x38760000, 0x38762000, 0x38764000, 0x38766000, 0x38768000, 0x3876a000,
0x3876c000, 0x3876e000, 0x38770000, 0x38772000, 0x38774000, 0x38776000,
0x38778000, 0x3877a000, 0x3877c000, 0x3877e000, 0x38780000, 0x38782000,
0x38784000, 0x38786000, 0x38788000, 0x3878a000, 0x3878c000, 0x3878e000,
0x38790000, 0x38792000, 0x38794000, 0x38796000, 0x38798000, 0x3879a000,
0x3879c000, 0x3879e000, 0x387a0000, 0x387a2000, 0x387a4000, 0x387a6000,
0x387a8000, 0x387aa000, 0x387ac000, 0x387ae000, 0x387b0000, 0x387b2000,
0x387b4000, 0x387b6000, 0x387b8000, 0x387ba000, 0x387bc000, 0x387be000,
0x387c0000, 0x387c2000, 0x387c4000, 0x387c6000, 0x387c8000, 0x387ca000,
0x387cc000, 0x387ce000, 0x387d0000, 0x387d2000, 0x387d4000, 0x387d6000,
0x387d8000, 0x387da000, 0x387dc000, 0x387de000, 0x387e0000, 0x387e2000,
0x387e4000, 0x387e6000, 0x387e8000, 0x387ea000, 0x387ec000, 0x387ee000,
0x387f0000, 0x387f2000, 0x387f4000, 0x387f6000, 0x387f8000, 0x387fa000,
0x387fc000, 0x387fe000};
const uint16_t g_offset_table[64] = {
0, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 0,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024};
const uint32_t g_exponent_table[64] = {
0x0, 0x800000, 0x1000000, 0x1800000, 0x2000000, 0x2800000,
0x3000000, 0x3800000, 0x4000000, 0x4800000, 0x5000000, 0x5800000,
0x6000000, 0x6800000, 0x7000000, 0x7800000, 0x8000000, 0x8800000,
0x9000000, 0x9800000, 0xa000000, 0xa800000, 0xb000000, 0xb800000,
0xc000000, 0xc800000, 0xd000000, 0xd800000, 0xe000000, 0xe800000,
0xf000000, 0x47800000, 0x80000000, 0x80800000, 0x81000000, 0x81800000,
0x82000000, 0x82800000, 0x83000000, 0x83800000, 0x84000000, 0x84800000,
0x85000000, 0x85800000, 0x86000000, 0x86800000, 0x87000000, 0x87800000,
0x88000000, 0x88800000, 0x89000000, 0x89800000, 0x8a000000, 0x8a800000,
0x8b000000, 0x8b800000, 0x8c000000, 0x8c800000, 0x8d000000, 0x8d800000,
0x8e000000, 0x8e800000, 0x8f000000, 0xc7800000};
float ConvertHalfFloatToFloat(uint16_t half) {
uint32_t temp =
g_mantissa_table[g_offset_table[half >> 10] + (half & 0x3ff)] +
g_exponent_table[half >> 10];
return *(reinterpret_cast<float*>(&temp));
}
/* BEGIN CODE SHARED WITH MOZILLA FIREFOX */
// The following packing and unpacking routines are expressed in terms of
// function templates and inline functions to achieve generality and speedup.
// Explicit template specializations correspond to the cases that would occur.
// Some code are merged back from Mozilla code in
// http://mxr.mozilla.org/mozilla-central/source/content/canvas/src/WebGLTexelConversions.h
//----------------------------------------------------------------------
// Pixel unpacking routines.
template <int format, typename SourceType, typename DstType>
void Unpack(const SourceType*, DstType*, unsigned) {
NOTREACHED();
}
template <>
void Unpack<WebGLImageConversion::kDataFormatARGB8, uint8_t, uint8_t>(
const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[1];
destination[1] = source[2];
destination[2] = source[3];
destination[3] = source[0];
source += 4;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatABGR8, uint8_t, uint8_t>(
const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[3];
destination[1] = source[2];
destination[2] = source[1];
destination[3] = source[0];
source += 4;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatBGRA8, uint8_t, uint8_t>(
const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
const uint32_t* source32 = reinterpret_cast_ptr<const uint32_t*>(source);
uint32_t* destination32 = reinterpret_cast_ptr<uint32_t*>(destination);
#if defined(ARCH_CPU_X86_FAMILY)
simd::UnpackOneRowOfBGRA8LittleToRGBA8(source32, destination32,
pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::unpackOneRowOfBGRA8LittleToRGBA8MSA(source32, destination32,
pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint32_t bgra = source32[i];
#if defined(ARCH_CPU_BIG_ENDIAN)
uint32_t brMask = 0xff00ff00;
uint32_t gaMask = 0x00ff00ff;
#else
uint32_t br_mask = 0x00ff00ff;
uint32_t ga_mask = 0xff00ff00;
#endif
uint32_t rgba =
(((bgra >> 16) | (bgra << 16)) & br_mask) | (bgra & ga_mask);
destination32[i] = rgba;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatRGBA5551, uint16_t, uint8_t>(
const uint16_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
#if defined(ARCH_CPU_X86_FAMILY)
simd::UnpackOneRowOfRGBA5551LittleToRGBA8(source, destination,
pixels_per_row);
#endif
#if defined(CPU_ARM_NEON)
simd::UnpackOneRowOfRGBA5551ToRGBA8(source, destination, pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::unpackOneRowOfRGBA5551ToRGBA8MSA(source, destination, pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint16_t packed_value = source[0];
uint8_t r = packed_value >> 11;
uint8_t g = (packed_value >> 6) & 0x1F;
uint8_t b = (packed_value >> 1) & 0x1F;
destination[0] = (r << 3) | (r & 0x7);
destination[1] = (g << 3) | (g & 0x7);
destination[2] = (b << 3) | (b & 0x7);
destination[3] = (packed_value & 0x1) ? 0xFF : 0x0;
source += 1;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatRGBA4444, uint16_t, uint8_t>(
const uint16_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
#if defined(ARCH_CPU_X86_FAMILY)
simd::UnpackOneRowOfRGBA4444LittleToRGBA8(source, destination,
pixels_per_row);
#endif
#if defined(CPU_ARM_NEON)
simd::UnpackOneRowOfRGBA4444ToRGBA8(source, destination, pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::unpackOneRowOfRGBA4444ToRGBA8MSA(source, destination, pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint16_t packed_value = source[0];
uint8_t r = packed_value >> 12;
uint8_t g = (packed_value >> 8) & 0x0F;
uint8_t b = (packed_value >> 4) & 0x0F;
uint8_t a = packed_value & 0x0F;
destination[0] = r << 4 | r;
destination[1] = g << 4 | g;
destination[2] = b << 4 | b;
destination[3] = a << 4 | a;
source += 1;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatRA8, uint8_t, uint8_t>(
const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[0];
destination[2] = source[0];
destination[3] = source[1];
source += 2;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatAR8, uint8_t, uint8_t>(
const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[1];
destination[1] = source[1];
destination[2] = source[1];
destination[3] = source[0];
source += 2;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatRGBA8, uint8_t, float>(
const uint8_t* source,
float* destination,
unsigned pixels_per_row) {
const float kScaleFactor = 1.0f / 255.0f;
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0] * kScaleFactor;
destination[1] = source[1] * kScaleFactor;
destination[2] = source[2] * kScaleFactor;
destination[3] = source[3] * kScaleFactor;
source += 4;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatBGRA8, uint8_t, float>(
const uint8_t* source,
float* destination,
unsigned pixels_per_row) {
const float kScaleFactor = 1.0f / 255.0f;
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[2] * kScaleFactor;
destination[1] = source[1] * kScaleFactor;
destination[2] = source[0] * kScaleFactor;
destination[3] = source[3] * kScaleFactor;
source += 4;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatABGR8, uint8_t, float>(
const uint8_t* source,
float* destination,
unsigned pixels_per_row) {
const float kScaleFactor = 1.0f / 255.0f;
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[3] * kScaleFactor;
destination[1] = source[2] * kScaleFactor;
destination[2] = source[1] * kScaleFactor;
destination[3] = source[0] * kScaleFactor;
source += 4;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatARGB8, uint8_t, float>(
const uint8_t* source,
float* destination,
unsigned pixels_per_row) {
const float kScaleFactor = 1.0f / 255.0f;
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[1] * kScaleFactor;
destination[1] = source[2] * kScaleFactor;
destination[2] = source[3] * kScaleFactor;
destination[3] = source[0] * kScaleFactor;
source += 4;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatRA32F, float, float>(
const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[0];
destination[2] = source[0];
destination[3] = source[1];
source += 2;
destination += 4;
}
}
template <>
void Unpack<WebGLImageConversion::kDataFormatRGBA2_10_10_10, uint32_t, float>(
const uint32_t* source,
float* destination,
unsigned pixels_per_row) {
static const float kRgbScaleFactor = 1.0f / 1023.0f;
static const float kAlphaScaleFactor = 1.0f / 3.0f;
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint32_t packed_value = source[0];
destination[0] = static_cast<float>(packed_value & 0x3FF) * kRgbScaleFactor;
destination[1] =
static_cast<float>((packed_value >> 10) & 0x3FF) * kRgbScaleFactor;
destination[2] =
static_cast<float>((packed_value >> 20) & 0x3FF) * kRgbScaleFactor;
destination[3] = static_cast<float>(packed_value >> 30) * kAlphaScaleFactor;
source += 1;
destination += 4;
}
}
// Used for non-trivial conversions of RGBA16F data.
template <>
void Unpack<WebGLImageConversion::kDataFormatRGBA16F, uint16_t, float>(
const uint16_t* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertHalfFloatToFloat(source[0]);
destination[1] = ConvertHalfFloatToFloat(source[1]);
destination[2] = ConvertHalfFloatToFloat(source[2]);
destination[3] = ConvertHalfFloatToFloat(source[3]);
source += 4;
destination += 4;
}
}
// Used for the trivial conversion of RGBA16F data to RGBA8.
template <>
void Unpack<WebGLImageConversion::kDataFormatRGBA16F, uint16_t, uint8_t>(
const uint16_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] =
ClampAndScaleFloat<uint8_t>(ConvertHalfFloatToFloat(source[0]));
destination[1] =
ClampAndScaleFloat<uint8_t>(ConvertHalfFloatToFloat(source[1]));
destination[2] =
ClampAndScaleFloat<uint8_t>(ConvertHalfFloatToFloat(source[2]));
destination[3] =
ClampAndScaleFloat<uint8_t>(ConvertHalfFloatToFloat(source[3]));
source += 4;
destination += 4;
}
}
//----------------------------------------------------------------------
// Pixel packing routines.
//
// All of the formats below refer to the format of the texture being
// uploaded. Only the formats that accept DOM sources (images, videos,
// ImageBitmap, etc.) need to:
//
// (a) support conversions from "other" formats than the destination
// format, since the other cases are simply handling Y-flips or alpha
// premultiplication of data supplied via ArrayBufferView
//
// (b) support the kAlphaDoUnmultiply operation, which is needed because
// there are some DOM-related data sources (like 2D canvas) which are
// stored in premultiplied form. Note that the alpha-only formats
// inherently don't need to support the kAlphaDoUnmultiply operation.
//
// The formats that accept DOM-related inputs are in the table for
// texImage2D taking TexImageSource in the WebGL 2.0 specification, plus
// all of the formats in the WebGL 1.0 specification, including legacy
// formats like luminance, alpha and luminance-alpha formats (which are
// renamed in the DataFormat enum to things like "red-alpha"). Extensions
// like EXT_texture_norm16 add to the supported formats
//
// Currently, those texture formats to which DOM-related inputs can be
// uploaded have to support two basic input formats coming from the rest of
// the browser: uint8_t, for RGBA8, and float, for RGBA16F.
template <int format, int alphaOp, typename SourceType, typename DstType>
void Pack(const SourceType*, DstType*, unsigned) {
NOTREACHED();
}
template <>
void Pack<WebGLImageConversion::kDataFormatA8,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[3];
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatA8,
WebGLImageConversion::kAlphaDoNothing,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[3]);
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoNothing,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0]);
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
destination[0] = source_r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t source_r = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
destination[0] = source_r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
#if defined(ARCH_CPU_X86_FAMILY)
simd::PackOneRowOfRGBA8LittleToR8(source, destination, pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::packOneRowOfRGBA8LittleToR8MSA(source, destination, pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
destination[0] = source_r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
uint8_t source_r = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
destination[0] = source_r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[3];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoNothing,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
destination[0] = source_r;
destination[1] = source[3];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
#if defined(ARCH_CPU_X86_FAMILY)
simd::PackOneRowOfRGBA8LittleToRA8(source, destination, pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::packOneRowOfRGBA8LittleToRA8MSA(source, destination, pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
destination[0] = source_r;
destination[1] = source[3];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
uint8_t source_r = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
destination[0] = source_r;
destination[1] = ClampAndScaleFloat<uint8_t>(source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB8,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[1];
destination[2] = source[2];
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB8,
WebGLImageConversion::kAlphaDoNothing,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1]);
destination[2] = ClampAndScaleFloat<uint8_t>(source[2]);
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB8,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
destination[0] = source_r;
destination[1] = source_g;
destination[2] = source_b;
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB8,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1] * source[3]);
destination[2] = ClampAndScaleFloat<uint8_t>(source[2] * source[3]);
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB8,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
destination[0] = source_r;
destination[1] = source_g;
destination[2] = source_b;
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB8,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1] * scale_factor);
destination[2] = ClampAndScaleFloat<uint8_t>(source[2] * scale_factor);
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA8,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
destination[0] = source_r;
destination[1] = source_g;
destination[2] = source_b;
destination[3] = source[3];
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA8,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1] * source[3]);
destination[2] = ClampAndScaleFloat<uint8_t>(source[2] * source[3]);
destination[3] = ClampAndScaleFloat<uint8_t>(source[3]);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA8,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
#if defined(ARCH_CPU_X86_FAMILY)
simd::PackOneRowOfRGBA8LittleToRGBA8(source, destination, pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::packOneRowOfRGBA8LittleToRGBA8MSA(source, destination, pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
destination[0] = source_r;
destination[1] = source_g;
destination[2] = source_b;
destination[3] = source[3];
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA8,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1] * scale_factor);
destination[2] = ClampAndScaleFloat<uint8_t>(source[2] * scale_factor);
destination[3] = ClampAndScaleFloat<uint8_t>(source[3]);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
#if defined(CPU_ARM_NEON)
simd::PackOneRowOfRGBA8ToUnsignedShort4444(source, destination,
pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::packOneRowOfRGBA8ToUnsignedShort4444MSA(source, destination,
pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
*destination = (((source[0] & 0xF0) << 8) | ((source[1] & 0xF0) << 4) |
(source[2] & 0xF0) | (source[3] >> 4));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0]);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1]);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2]);
uint8_t a = ClampAndScaleFloat<uint8_t>(source[3]);
*destination =
(((r & 0xF0) << 8) | ((g & 0xF0) << 4) | (b & 0xF0) | (a >> 4));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
*destination = (((source_r & 0xF0) << 8) | ((source_g & 0xF0) << 4) |
(source_b & 0xF0) | (source[3] >> 4));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1] * source[3]);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2] * source[3]);
uint8_t a = ClampAndScaleFloat<uint8_t>(source[3]);
*destination =
(((r & 0xF0) << 8) | ((g & 0xF0) << 4) | (b & 0xF0) | (a >> 4));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
*destination = (((source_r & 0xF0) << 8) | ((source_g & 0xF0) << 4) |
(source_b & 0xF0) | (source[3] >> 4));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1] * scale_factor);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2] * scale_factor);
uint8_t a = ClampAndScaleFloat<uint8_t>(source[3]);
*destination =
(((r & 0xF0) << 8) | ((g & 0xF0) << 4) | (b & 0xF0) | (a >> 4));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
#if defined(CPU_ARM_NEON)
simd::PackOneRowOfRGBA8ToUnsignedShort5551(source, destination,
pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::packOneRowOfRGBA8ToUnsignedShort5551MSA(source, destination,
pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
*destination = (((source[0] & 0xF8) << 8) | ((source[1] & 0xF8) << 3) |
((source[2] & 0xF8) >> 2) | (source[3] >> 7));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0]);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1]);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2]);
uint8_t a = ClampAndScaleFloat<uint8_t>(source[3]);
*destination =
(((r & 0xF8) << 8) | ((g & 0xF8) << 3) | ((b & 0xF8) >> 2) | (a >> 7));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
*destination = (((source_r & 0xF8) << 8) | ((source_g & 0xF8) << 3) |
((source_b & 0xF8) >> 2) | (source[3] >> 7));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1] * source[3]);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2] * source[3]);
uint8_t a = ClampAndScaleFloat<uint8_t>(source[3]);
*destination =
(((r & 0xF8) << 8) | ((g & 0xF8) << 3) | ((b & 0xF8) >> 2) | (a >> 7));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
*destination = (((source_r & 0xF8) << 8) | ((source_g & 0xF8) << 3) |
((source_b & 0xF8) >> 2) | (source[3] >> 7));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1] * scale_factor);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2] * scale_factor);
uint8_t a = ClampAndScaleFloat<uint8_t>(source[3]);
*destination =
(((r & 0xF8) << 8) | ((g & 0xF8) << 3) | ((b & 0xF8) >> 2) | (a >> 7));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
#if defined(CPU_ARM_NEON)
simd::PackOneRowOfRGBA8ToUnsignedShort565(source, destination,
pixels_per_row);
#endif
#if defined(HAVE_MIPS_MSA_INTRINSICS)
simd::packOneRowOfRGBA8ToUnsignedShort565MSA(source, destination,
pixels_per_row);
#endif
for (unsigned i = 0; i < pixels_per_row; ++i) {
*destination = (((source[0] & 0xF8) << 8) | ((source[1] & 0xFC) << 3) |
((source[2] & 0xF8) >> 3));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0]);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1]);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2]);
*destination = (((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] / 255.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
*destination = (((source_r & 0xF8) << 8) | ((source_g & 0xFC) << 3) |
((source_b & 0xF8) >> 3));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1] * source[3]);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2] * source[3]);
*destination = (((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint16_t>(const uint8_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 255.0f / source[3] : 1.0f;
uint8_t source_r =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
uint8_t source_g =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
uint8_t source_b =
static_cast<uint8_t>(static_cast<float>(source[2]) * scale_factor);
*destination = (((source_r & 0xF8) << 8) | ((source_g & 0xFC) << 3) |
((source_b & 0xF8) >> 3));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
uint8_t r = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
uint8_t g = ClampAndScaleFloat<uint8_t>(source[1] * scale_factor);
uint8_t b = ClampAndScaleFloat<uint8_t>(source[2] * scale_factor);
*destination = (((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3));
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB32F,
WebGLImageConversion::kAlphaDoNothing,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[1];
destination[2] = source[2];
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB32F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = source[0] * scale_factor;
destination[1] = source[1] * scale_factor;
destination[2] = source[2] * scale_factor;
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB32F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = source[0] * scale_factor;
destination[1] = source[1] * scale_factor;
destination[2] = source[2] * scale_factor;
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA32F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = source[0] * scale_factor;
destination[1] = source[1] * scale_factor;
destination[2] = source[2] * scale_factor;
destination[3] = source[3];
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA32F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = source[0] * scale_factor;
destination[1] = source[1] * scale_factor;
destination[2] = source[2] * scale_factor;
destination[3] = source[3];
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatA32F,
WebGLImageConversion::kAlphaDoNothing,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[3];
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR32F,
WebGLImageConversion::kAlphaDoNothing,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR32F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = source[0] * scale_factor;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR32F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = source[0] * scale_factor;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA32F,
WebGLImageConversion::kAlphaDoNothing,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[3];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA32F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = source[0] * scale_factor;
destination[1] = source[3];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA32F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = source[0] * scale_factor;
destination[1] = source[3];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA16F,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertFloatToHalfFloat(source[0]);
destination[1] = ConvertFloatToHalfFloat(source[1]);
destination[2] = ConvertFloatToHalfFloat(source[2]);
destination[3] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA16F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[1] * scale_factor);
destination[2] = ConvertFloatToHalfFloat(source[2] * scale_factor);
destination[3] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA16F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[1] * scale_factor);
destination[2] = ConvertFloatToHalfFloat(source[2] * scale_factor);
destination[3] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB16F,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertFloatToHalfFloat(source[0]);
destination[1] = ConvertFloatToHalfFloat(source[1]);
destination[2] = ConvertFloatToHalfFloat(source[2]);
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB16F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[1] * scale_factor);
destination[2] = ConvertFloatToHalfFloat(source[2] * scale_factor);
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGB16F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[1] * scale_factor);
destination[2] = ConvertFloatToHalfFloat(source[2] * scale_factor);
source += 4;
destination += 3;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA16F,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertFloatToHalfFloat(source[0]);
destination[1] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA16F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRA16F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR16F,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertFloatToHalfFloat(source[0]);
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR16F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatR16F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatA16F,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertFloatToHalfFloat(source[3]);
source += 4;
destination += 1;
}
}
// Can not be targeted by DOM uploads, so does not need to support float
// input data.
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA8_S,
WebGLImageConversion::kAlphaDoPremultiply,
int8_t,
int8_t>(const int8_t* source,
int8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[3] = ClampMin(source[3]);
float scale_factor = static_cast<float>(destination[3]) / kMaxInt8Value;
destination[0] = static_cast<int8_t>(
static_cast<float>(ClampMin(source[0])) * scale_factor);
destination[1] = static_cast<int8_t>(
static_cast<float>(ClampMin(source[1])) * scale_factor);
destination[2] = static_cast<int8_t>(
static_cast<float>(ClampMin(source[2])) * scale_factor);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA16,
WebGLImageConversion::kAlphaDoPremultiply,
uint16_t,
uint16_t>(const uint16_t* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = static_cast<float>(source[3]) / kMaxUInt16Value;
destination[0] =
static_cast<uint16_t>(static_cast<float>(source[0]) * scale_factor);
destination[1] =
static_cast<uint16_t>(static_cast<float>(source[1]) * scale_factor);
destination[2] =
static_cast<uint16_t>(static_cast<float>(source[2]) * scale_factor);
destination[3] = source[3];
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA16,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint16_t>(source[0] * source[3]);
destination[1] = ClampAndScaleFloat<uint16_t>(source[1] * source[3]);
destination[2] = ClampAndScaleFloat<uint16_t>(source[2] * source[3]);
destination[3] = ClampAndScaleFloat<uint16_t>(source[3]);
source += 4;
destination += 4;
}
}
// Can not be targeted by DOM uploads, so does not need to support float
// input data.
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA16_S,
WebGLImageConversion::kAlphaDoPremultiply,
int16_t,
int16_t>(const int16_t* source,
int16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[3] = ClampMin(source[3]);
float scale_factor = static_cast<float>(destination[3]) / kMaxInt16Value;
destination[0] = static_cast<int16_t>(
static_cast<float>(ClampMin(source[0])) * scale_factor);
destination[1] = static_cast<int16_t>(
static_cast<float>(ClampMin(source[1])) * scale_factor);
destination[2] = static_cast<int16_t>(
static_cast<float>(ClampMin(source[2])) * scale_factor);
source += 4;
destination += 4;
}
}
// Can not be targeted by DOM uploads, so does not need to support float
// input data.
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA32,
WebGLImageConversion::kAlphaDoPremultiply,
uint32_t,
uint32_t>(const uint32_t* source,
uint32_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
double scale_factor = static_cast<double>(source[3]) / kMaxUInt32Value;
destination[0] =
static_cast<uint32_t>(static_cast<double>(source[0]) * scale_factor);
destination[1] =
static_cast<uint32_t>(static_cast<double>(source[1]) * scale_factor);
destination[2] =
static_cast<uint32_t>(static_cast<double>(source[2]) * scale_factor);
destination[3] = source[3];
source += 4;
destination += 4;
}
}
// Can not be targeted by DOM uploads, so does not need to support float
// input data.
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA32_S,
WebGLImageConversion::kAlphaDoPremultiply,
int32_t,
int32_t>(const int32_t* source,
int32_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[3] = ClampMin(source[3]);
double scale_factor = static_cast<double>(destination[3]) / kMaxInt32Value;
destination[0] = static_cast<int32_t>(
static_cast<double>(ClampMin(source[0])) * scale_factor);
destination[1] = static_cast<int32_t>(
static_cast<double>(ClampMin(source[1])) * scale_factor);
destination[2] = static_cast<int32_t>(
static_cast<double>(ClampMin(source[2])) * scale_factor);
source += 4;
destination += 4;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA2_10_10_10,
WebGLImageConversion::kAlphaDoNothing,
float,
uint32_t>(const float* source,
uint32_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint32_t r = static_cast<uint32_t>(source[0] * 1023.0f);
uint32_t g = static_cast<uint32_t>(source[1] * 1023.0f);
uint32_t b = static_cast<uint32_t>(source[2] * 1023.0f);
uint32_t a = static_cast<uint32_t>(source[3] * 3.0f);
destination[0] = (a << 30) | (b << 20) | (g << 10) | r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA2_10_10_10,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint32_t>(const float* source,
uint32_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
uint32_t r = static_cast<uint32_t>(source[0] * source[3] * 1023.0f);
uint32_t g = static_cast<uint32_t>(source[1] * source[3] * 1023.0f);
uint32_t b = static_cast<uint32_t>(source[2] * source[3] * 1023.0f);
uint32_t a = static_cast<uint32_t>(source[3] * 3.0f);
destination[0] = (a << 30) | (b << 20) | (g << 10) | r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRGBA2_10_10_10,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint32_t>(const float* source,
uint32_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1023.0f / source[3] : 1023.0f;
uint32_t r = static_cast<uint32_t>(source[0] * scale_factor);
uint32_t g = static_cast<uint32_t>(source[1] * scale_factor);
uint32_t b = static_cast<uint32_t>(source[2] * scale_factor);
uint32_t a = static_cast<uint32_t>(source[3] * 3.0f);
destination[0] = (a << 30) | (b << 20) | (g << 10) | r;
source += 4;
destination += 1;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG8,
WebGLImageConversion::kAlphaDoNothing,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[1];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG8,
WebGLImageConversion::kAlphaDoNothing,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG8,
WebGLImageConversion::kAlphaDoPremultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = static_cast<float>(source[3]) / kMaxUInt8Value;
destination[0] =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
destination[1] =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG8,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * source[3]);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1] * source[3]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG8,
WebGLImageConversion::kAlphaDoUnmultiply,
uint8_t,
uint8_t>(const uint8_t* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor =
source[3] ? kMaxUInt8Value / static_cast<float>(source[3]) : 1.0f;
destination[0] =
static_cast<uint8_t>(static_cast<float>(source[0]) * scale_factor);
destination[1] =
static_cast<uint8_t>(static_cast<float>(source[1]) * scale_factor);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG8,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint8_t>(const float* source,
uint8_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ClampAndScaleFloat<uint8_t>(source[0] * scale_factor);
destination[1] = ClampAndScaleFloat<uint8_t>(source[1] * scale_factor);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG16F,
WebGLImageConversion::kAlphaDoNothing,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = ConvertFloatToHalfFloat(source[0]);
destination[1] = ConvertFloatToHalfFloat(source[1]);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG16F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[1] * scale_factor);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG16F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
uint16_t>(const float* source,
uint16_t* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = ConvertFloatToHalfFloat(source[0] * scale_factor);
destination[1] = ConvertFloatToHalfFloat(source[1] * scale_factor);
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG32F,
WebGLImageConversion::kAlphaDoNothing,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
destination[0] = source[0];
destination[1] = source[1];
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG32F,
WebGLImageConversion::kAlphaDoPremultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3];
destination[0] = source[0] * scale_factor;
destination[1] = source[1] * scale_factor;
source += 4;
destination += 2;
}
}
template <>
void Pack<WebGLImageConversion::kDataFormatRG32F,
WebGLImageConversion::kAlphaDoUnmultiply,
float,
float>(const float* source,
float* destination,
unsigned pixels_per_row) {
for (unsigned i = 0; i < pixels_per_row; ++i) {
float scale_factor = source[3] ? 1.0f / source[3] : 1.0f;
destination[0] = source[0] * scale_factor;
destination[1] = source[1] * scale_factor;
source += 4;
destination += 2;
}
}
bool HasAlpha(int format) {
return format == WebGLImageConversion::kDataFormatA8 ||
format == WebGLImageConversion::kDataFormatA16F ||
format == WebGLImageConversion::kDataFormatA32F ||
format == WebGLImageConversion::kDataFormatRA8 ||
format == WebGLImageConversion::kDataFormatAR8 ||
format == WebGLImageConversion::kDataFormatRA16F ||
format == WebGLImageConversion::kDataFormatRA32F ||
format == WebGLImageConversion::kDataFormatRGBA8 ||
format == WebGLImageConversion::kDataFormatBGRA8 ||
format == WebGLImageConversion::kDataFormatARGB8 ||
format == WebGLImageConversion::kDataFormatABGR8 ||
format == WebGLImageConversion::kDataFormatRGBA16F ||
format == WebGLImageConversion::kDataFormatRGBA32F ||
format == WebGLImageConversion::kDataFormatRGBA4444 ||
format == WebGLImageConversion::kDataFormatRGBA5551 ||
format == WebGLImageConversion::kDataFormatRGBA8_S ||
format == WebGLImageConversion::kDataFormatRGBA16 ||
format == WebGLImageConversion::kDataFormatRGBA16_S ||
format == WebGLImageConversion::kDataFormatRGBA32 ||
format == WebGLImageConversion::kDataFormatRGBA32_S ||
format == WebGLImageConversion::kDataFormatRGBA2_10_10_10;
}
bool HasColor(int format) {
return format == WebGLImageConversion::kDataFormatRGBA8 ||
format == WebGLImageConversion::kDataFormatRGBA16F ||
format == WebGLImageConversion::kDataFormatRGBA32F ||
format == WebGLImageConversion::kDataFormatRGB8 ||
format == WebGLImageConversion::kDataFormatRGB16F ||
format == WebGLImageConversion::kDataFormatRGB32F ||
format == WebGLImageConversion::kDataFormatBGR8 ||
format == WebGLImageConversion::kDataFormatBGRA8 ||
format == WebGLImageConversion::kDataFormatARGB8 ||
format == WebGLImageConversion::kDataFormatABGR8 ||
format == WebGLImageConversion::kDataFormatRGBA5551 ||
format == WebGLImageConversion::kDataFormatRGBA4444 ||
format == WebGLImageConversion::kDataFormatRGB565 ||
format == WebGLImageConversion::kDataFormatR8 ||
format == WebGLImageConversion::kDataFormatR16F ||
format == WebGLImageConversion::kDataFormatR32F ||
format == WebGLImageConversion::kDataFormatRA8 ||
format == WebGLImageConversion::kDataFormatRA16F ||
format == WebGLImageConversion::kDataFormatRA32F ||
format == WebGLImageConversion::kDataFormatAR8 ||
format == WebGLImageConversion::kDataFormatRGBA8_S ||
format == WebGLImageConversion::kDataFormatRGBA16 ||
format == WebGLImageConversion::kDataFormatRGBA16_S ||
format == WebGLImageConversion::kDataFormatRGBA32 ||
format == WebGLImageConversion::kDataFormatRGBA32_S ||
format == WebGLImageConversion::kDataFormatRGBA2_10_10_10 ||
format == WebGLImageConversion::kDataFormatRGB8_S ||
format == WebGLImageConversion::kDataFormatRGB16 ||
format == WebGLImageConversion::kDataFormatRGB16_S ||
format == WebGLImageConversion::kDataFormatRGB32 ||
format == WebGLImageConversion::kDataFormatRGB32_S ||
format == WebGLImageConversion::kDataFormatRGB10F11F11F ||
format == WebGLImageConversion::kDataFormatRGB5999 ||
format == WebGLImageConversion::kDataFormatRG8 ||
format == WebGLImageConversion::kDataFormatRG8_S ||
format == WebGLImageConversion::kDataFormatRG16 ||
format == WebGLImageConversion::kDataFormatRG16_S ||
format == WebGLImageConversion::kDataFormatRG32 ||
format == WebGLImageConversion::kDataFormatRG32_S ||
format == WebGLImageConversion::kDataFormatRG16F ||
format == WebGLImageConversion::kDataFormatRG32F ||
format == WebGLImageConversion::kDataFormatR8_S ||
format == WebGLImageConversion::kDataFormatR16 ||
format == WebGLImageConversion::kDataFormatR16_S ||
format == WebGLImageConversion::kDataFormatR32 ||
format == WebGLImageConversion::kDataFormatR32_S;
}
template <int Format>
struct IsInt8Format {
STATIC_ONLY(IsInt8Format);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA8_S ||
Format == WebGLImageConversion::kDataFormatRGB8_S ||
Format == WebGLImageConversion::kDataFormatRG8_S ||
Format == WebGLImageConversion::kDataFormatR8_S;
};
template <int Format>
struct IsInt16Format {
STATIC_ONLY(IsInt16Format);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA16_S ||
Format == WebGLImageConversion::kDataFormatRGB16_S ||
Format == WebGLImageConversion::kDataFormatRG16_S ||
Format == WebGLImageConversion::kDataFormatR16_S;
};
template <int Format>
struct IsInt32Format {
STATIC_ONLY(IsInt32Format);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA32_S ||
Format == WebGLImageConversion::kDataFormatRGB32_S ||
Format == WebGLImageConversion::kDataFormatRG32_S ||
Format == WebGLImageConversion::kDataFormatR32_S;
};
template <int Format>
struct IsUInt8Format {
STATIC_ONLY(IsUInt8Format);
static const bool value = Format == WebGLImageConversion::kDataFormatRGBA8 ||
Format == WebGLImageConversion::kDataFormatRGB8 ||
Format == WebGLImageConversion::kDataFormatRG8 ||
Format == WebGLImageConversion::kDataFormatR8 ||
Format == WebGLImageConversion::kDataFormatBGRA8 ||
Format == WebGLImageConversion::kDataFormatBGR8 ||
Format == WebGLImageConversion::kDataFormatARGB8 ||
Format == WebGLImageConversion::kDataFormatABGR8 ||
Format == WebGLImageConversion::kDataFormatRA8 ||
Format == WebGLImageConversion::kDataFormatAR8 ||
Format == WebGLImageConversion::kDataFormatA8;
};
template <int Format>
struct IsUInt16Format {
STATIC_ONLY(IsUInt16Format);
static const bool value = Format == WebGLImageConversion::kDataFormatRGBA16 ||
Format == WebGLImageConversion::kDataFormatRGB16 ||
Format == WebGLImageConversion::kDataFormatRG16 ||
Format == WebGLImageConversion::kDataFormatR16;
};
template <int Format>
struct IsUInt32Format {
STATIC_ONLY(IsUInt32Format);
static const bool value = Format == WebGLImageConversion::kDataFormatRGBA32 ||
Format == WebGLImageConversion::kDataFormatRGB32 ||
Format == WebGLImageConversion::kDataFormatRG32 ||
Format == WebGLImageConversion::kDataFormatR32;
};
template <int Format>
struct IsFloatFormat {
STATIC_ONLY(IsFloatFormat);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA32F ||
Format == WebGLImageConversion::kDataFormatRGB32F ||
Format == WebGLImageConversion::kDataFormatRA32F ||
Format == WebGLImageConversion::kDataFormatR32F ||
Format == WebGLImageConversion::kDataFormatA32F ||
Format == WebGLImageConversion::kDataFormatRG32F;
};
template <int Format>
struct IsHalfFloatFormat {
STATIC_ONLY(IsHalfFloatFormat);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA16F ||
Format == WebGLImageConversion::kDataFormatRGB16F ||
Format == WebGLImageConversion::kDataFormatRA16F ||
Format == WebGLImageConversion::kDataFormatR16F ||
Format == WebGLImageConversion::kDataFormatA16F ||
Format == WebGLImageConversion::kDataFormatRG16F;
};
template <int Format>
struct Is32bppFormat {
STATIC_ONLY(Is32bppFormat);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA2_10_10_10 ||
Format == WebGLImageConversion::kDataFormatRGB5999 ||
Format == WebGLImageConversion::kDataFormatRGB10F11F11F;
};
template <int Format>
struct Is16bppFormat {
STATIC_ONLY(Is16bppFormat);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA5551 ||
Format == WebGLImageConversion::kDataFormatRGBA4444 ||
Format == WebGLImageConversion::kDataFormatRGB565;
};
template <int Format,
bool IsInt8Format = IsInt8Format<Format>::value,
bool IsUInt8Format = IsUInt8Format<Format>::value,
bool IsInt16Format = IsInt16Format<Format>::value,
bool IsUInt16Format = IsUInt16Format<Format>::value,
bool IsInt32Format = IsInt32Format<Format>::value,
bool IsUInt32Format = IsUInt32Format<Format>::value,
bool IsFloat = IsFloatFormat<Format>::value,
bool IsHalfFloat = IsHalfFloatFormat<Format>::value,
bool Is16bpp = Is16bppFormat<Format>::value,
bool Is32bpp = Is32bppFormat<Format>::value>
struct DataTypeForFormat {
STATIC_ONLY(DataTypeForFormat);
typedef double Type; // Use a type that's not used in unpack/pack.
};
template <int Format>
struct DataTypeForFormat<Format,
true,
false,
false,
false,
false,
false,
false,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef int8_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
true,
false,
false,
false,
false,
false,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef uint8_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
true,
false,
false,
false,
false,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef int16_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
true,
false,
false,
false,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef uint16_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
false,
true,
false,
false,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef int32_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
false,
false,
true,
false,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef uint32_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
false,
false,
false,
true,
false,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef float Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
false,
false,
false,
false,
true,
false,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef uint16_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
false,
false,
false,
false,
false,
true,
false> {
STATIC_ONLY(DataTypeForFormat);
typedef uint16_t Type;
};
template <int Format>
struct DataTypeForFormat<Format,
false,
false,
false,
false,
false,
false,
false,
false,
false,
true> {
STATIC_ONLY(DataTypeForFormat);
typedef uint32_t Type;
};
template <int Format>
struct UsesFloatIntermediateFormat {
STATIC_ONLY(UsesFloatIntermediateFormat);
static const bool value =
IsFloatFormat<Format>::value || IsHalfFloatFormat<Format>::value ||
Format == WebGLImageConversion::kDataFormatRGBA2_10_10_10 ||
Format == WebGLImageConversion::kDataFormatRGB10F11F11F ||
Format == WebGLImageConversion::kDataFormatRGB5999;
};
template <int Format>
struct IntermediateFormat {
STATIC_ONLY(IntermediateFormat);
static const int value =
UsesFloatIntermediateFormat<Format>::value
? WebGLImageConversion::kDataFormatRGBA32F
: IsInt32Format<Format>::value
? WebGLImageConversion::kDataFormatRGBA32_S
: IsUInt32Format<Format>::value
? WebGLImageConversion::kDataFormatRGBA32
: IsInt16Format<Format>::value
? WebGLImageConversion::kDataFormatRGBA16_S
: (IsUInt16Format<Format>::value ||
Is32bppFormat<Format>::value)
? WebGLImageConversion::kDataFormatRGBA16
: IsInt8Format<Format>::value
? WebGLImageConversion::
kDataFormatRGBA8_S
: WebGLImageConversion::
kDataFormatRGBA8;
};
unsigned TexelBytesForFormat(WebGLImageConversion::DataFormat format) {
switch (format) {
case WebGLImageConversion::kDataFormatR8:
case WebGLImageConversion::kDataFormatR8_S:
case WebGLImageConversion::kDataFormatA8:
return 1;
case WebGLImageConversion::kDataFormatRG8:
case WebGLImageConversion::kDataFormatRG8_S:
case WebGLImageConversion::kDataFormatRA8:
case WebGLImageConversion::kDataFormatAR8:
case WebGLImageConversion::kDataFormatRGBA5551:
case WebGLImageConversion::kDataFormatRGBA4444:
case WebGLImageConversion::kDataFormatRGB565:
case WebGLImageConversion::kDataFormatA16F:
case WebGLImageConversion::kDataFormatR16:
case WebGLImageConversion::kDataFormatR16_S:
case WebGLImageConversion::kDataFormatR16F:
case WebGLImageConversion::kDataFormatD16:
return 2;
case WebGLImageConversion::kDataFormatRGB8:
case WebGLImageConversion::kDataFormatRGB8_S:
case WebGLImageConversion::kDataFormatBGR8:
return 3;
case WebGLImageConversion::kDataFormatRGBA8:
case WebGLImageConversion::kDataFormatRGBA8_S:
case WebGLImageConversion::kDataFormatARGB8:
case WebGLImageConversion::kDataFormatABGR8:
case WebGLImageConversion::kDataFormatBGRA8:
case WebGLImageConversion::kDataFormatR32:
case WebGLImageConversion::kDataFormatR32_S:
case WebGLImageConversion::kDataFormatR32F:
case WebGLImageConversion::kDataFormatA32F:
case WebGLImageConversion::kDataFormatRA16F:
case WebGLImageConversion::kDataFormatRGBA2_10_10_10:
case WebGLImageConversion::kDataFormatRGB10F11F11F:
case WebGLImageConversion::kDataFormatRGB5999:
case WebGLImageConversion::kDataFormatRG16:
case WebGLImageConversion::kDataFormatRG16_S:
case WebGLImageConversion::kDataFormatRG16F:
case WebGLImageConversion::kDataFormatD32:
case WebGLImageConversion::kDataFormatD32F:
case WebGLImageConversion::kDataFormatDS24_8:
return 4;
case WebGLImageConversion::kDataFormatRGB16:
case WebGLImageConversion::kDataFormatRGB16_S:
case WebGLImageConversion::kDataFormatRGB16F:
return 6;
case WebGLImageConversion::kDataFormatRGBA16:
case WebGLImageConversion::kDataFormatRGBA16_S:
case WebGLImageConversion::kDataFormatRA32F:
case WebGLImageConversion::kDataFormatRGBA16F:
case WebGLImageConversion::kDataFormatRG32:
case WebGLImageConversion::kDataFormatRG32_S:
case WebGLImageConversion::kDataFormatRG32F:
return 8;
case WebGLImageConversion::kDataFormatRGB32:
case WebGLImageConversion::kDataFormatRGB32_S:
case WebGLImageConversion::kDataFormatRGB32F:
return 12;
case WebGLImageConversion::kDataFormatRGBA32:
case WebGLImageConversion::kDataFormatRGBA32_S:
case WebGLImageConversion::kDataFormatRGBA32F:
return 16;
default:
return 0;
}
}
/* END CODE SHARED WITH MOZILLA FIREFOX */
class FormatConverter {
STACK_ALLOCATED();
public:
FormatConverter(const IntRect& source_data_sub_rectangle,
int depth,
int unpack_image_height,
const void* src_start,
void* dst_start,
int src_stride,
int src_row_offset,
int dst_stride)
: src_sub_rectangle_(source_data_sub_rectangle),
depth_(depth),
unpack_image_height_(unpack_image_height),
src_start_(src_start),
dst_start_(dst_start),
src_stride_(src_stride),
src_row_offset_(src_row_offset),
dst_stride_(dst_stride),
success_(false) {
const unsigned kMaxNumberOfComponents = 4;
const unsigned kMaxBytesPerComponent = 4;
unpacked_intermediate_src_data_ = std::make_unique<uint8_t[]>(
src_sub_rectangle_.Width() * kMaxNumberOfComponents *
kMaxBytesPerComponent);
DCHECK(unpacked_intermediate_src_data_.get());
}
void Convert(WebGLImageConversion::DataFormat src_format,
WebGLImageConversion::DataFormat dst_format,
WebGLImageConversion::AlphaOp);
bool Success() const { return success_; }
private:
template <WebGLImageConversion::DataFormat SrcFormat>
void Convert(WebGLImageConversion::DataFormat dst_format,
WebGLImageConversion::AlphaOp);
template <WebGLImageConversion::DataFormat SrcFormat,
WebGLImageConversion::DataFormat DstFormat>
void Convert(WebGLImageConversion::AlphaOp);
template <WebGLImageConversion::DataFormat SrcFormat,
WebGLImageConversion::DataFormat DstFormat,
WebGLImageConversion::AlphaOp alphaOp>
void Convert();
const IntRect& src_sub_rectangle_;
const int depth_;
const int unpack_image_height_;
const void* const src_start_;
void* const dst_start_;
const int src_stride_, src_row_offset_, dst_stride_;
bool success_;
std::unique_ptr<uint8_t[]> unpacked_intermediate_src_data_;
};
void FormatConverter::Convert(WebGLImageConversion::DataFormat src_format,
WebGLImageConversion::DataFormat dst_format,
WebGLImageConversion::AlphaOp alpha_op) {
#define FORMATCONVERTER_CASE_SRCFORMAT(SrcFormat) \
case SrcFormat: \
return Convert<SrcFormat>(dst_format, alpha_op);
switch (src_format) {
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRA8)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRA32F)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRGBA8)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatARGB8)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatABGR8)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatAR8)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatBGRA8)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRGBA5551)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRGBA4444)
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRGBA32F)
FORMATCONVERTER_CASE_SRCFORMAT(
WebGLImageConversion::kDataFormatRGBA2_10_10_10)
// Only used by ImageBitmap, when colorspace conversion is needed.
FORMATCONVERTER_CASE_SRCFORMAT(WebGLImageConversion::kDataFormatRGBA16F)
default:
NOTREACHED();
}
#undef FORMATCONVERTER_CASE_SRCFORMAT
}
template <WebGLImageConversion::DataFormat SrcFormat>
void FormatConverter::Convert(WebGLImageConversion::DataFormat dst_format,
WebGLImageConversion::AlphaOp alpha_op) {
#define FORMATCONVERTER_CASE_DSTFORMAT(DstFormat) \
case DstFormat: \
return Convert<SrcFormat, DstFormat>(alpha_op);
switch (dst_format) {
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatR8)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatR16F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatR32F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatA8)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatA16F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatA32F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRA8)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRA16F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRA32F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGB8)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGB565)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGB16F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGB32F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA8)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA5551)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA4444)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA16F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA32F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA8_S)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA16)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA16_S)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA32)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRGBA32_S)
FORMATCONVERTER_CASE_DSTFORMAT(
WebGLImageConversion::kDataFormatRGBA2_10_10_10)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRG8)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRG16F)
FORMATCONVERTER_CASE_DSTFORMAT(WebGLImageConversion::kDataFormatRG32F)
default:
NOTREACHED();
}
#undef FORMATCONVERTER_CASE_DSTFORMAT
}
template <WebGLImageConversion::DataFormat SrcFormat,
WebGLImageConversion::DataFormat DstFormat>
void FormatConverter::Convert(WebGLImageConversion::AlphaOp alpha_op) {
#define FORMATCONVERTER_CASE_ALPHAOP(alphaOp) \
case alphaOp: \
return Convert<SrcFormat, DstFormat, alphaOp>();
switch (alpha_op) {
FORMATCONVERTER_CASE_ALPHAOP(WebGLImageConversion::kAlphaDoNothing)
FORMATCONVERTER_CASE_ALPHAOP(WebGLImageConversion::kAlphaDoPremultiply)
FORMATCONVERTER_CASE_ALPHAOP(WebGLImageConversion::kAlphaDoUnmultiply)
default:
NOTREACHED();
}
#undef FORMATCONVERTER_CASE_ALPHAOP
}
template <int Format>
struct SupportsConversionFromDomElements {
STATIC_ONLY(SupportsConversionFromDomElements);
static const bool value =
Format == WebGLImageConversion::kDataFormatRGBA8 ||
Format == WebGLImageConversion::kDataFormatRGB8 ||
Format == WebGLImageConversion::kDataFormatRG8 ||
Format == WebGLImageConversion::kDataFormatRA8 ||
Format == WebGLImageConversion::kDataFormatR8 ||
Format == WebGLImageConversion::kDataFormatRGBA32F ||
Format == WebGLImageConversion::kDataFormatRGB32F ||
Format == WebGLImageConversion::kDataFormatRG32F ||
Format == WebGLImageConversion::kDataFormatRA32F ||
Format == WebGLImageConversion::kDataFormatR32F ||
Format == WebGLImageConversion::kDataFormatRGBA16F ||
Format == WebGLImageConversion::kDataFormatRGB16F ||
Format == WebGLImageConversion::kDataFormatRG16F ||
Format == WebGLImageConversion::kDataFormatRA16F ||
Format == WebGLImageConversion::kDataFormatR16F ||
Format == WebGLImageConversion::kDataFormatRGBA5551 ||
Format == WebGLImageConversion::kDataFormatRGBA4444 ||
Format == WebGLImageConversion::kDataFormatRGB565 ||
Format == WebGLImageConversion::kDataFormatRGBA2_10_10_10;
};
template <WebGLImageConversion::DataFormat SrcFormat,
WebGLImageConversion::DataFormat DstFormat,
WebGLImageConversion::AlphaOp alphaOp>
void FormatConverter::Convert() {
// Many instantiations of this template function will never be entered, so we
// try to return immediately in these cases to avoid generating useless code.
if (SrcFormat == DstFormat &&
alphaOp == WebGLImageConversion::kAlphaDoNothing) {
NOTREACHED();
return;
}
// Note that ImageBitmaps with SrcFormat==kDataFormatRGBA16F return
// false for IsFloatFormat since the input data is uint16_t.
if (!IsFloatFormat<DstFormat>::value && IsFloatFormat<SrcFormat>::value) {
NOTREACHED();
return;
}
// Only textures uploaded from DOM elements or ImageData can allow DstFormat
// != SrcFormat.
const bool src_format_comes_from_dom_element_or_image_data =
WebGLImageConversion::SrcFormatComesFromDOMElementOrImageData(SrcFormat);
if (!src_format_comes_from_dom_element_or_image_data &&
SrcFormat != DstFormat) {
NOTREACHED();
return;
}
// Likewise, only textures uploaded from DOM elements or ImageData can
// possibly need to be unpremultiplied.
if (!src_format_comes_from_dom_element_or_image_data &&
alphaOp == WebGLImageConversion::kAlphaDoUnmultiply) {
NOTREACHED();
return;
}
if (src_format_comes_from_dom_element_or_image_data &&
alphaOp == WebGLImageConversion::kAlphaDoUnmultiply &&
!SupportsConversionFromDomElements<DstFormat>::value) {
NOTREACHED();
return;
}
if ((!HasAlpha(SrcFormat) || !HasColor(SrcFormat) || !HasColor(DstFormat)) &&
alphaOp != WebGLImageConversion::kAlphaDoNothing) {
NOTREACHED();
return;
}
// If converting DOM element data to UNSIGNED_INT_5_9_9_9_REV or
// UNSIGNED_INT_10F_11F_11F_REV, we should always switch to FLOAT instead to
// avoid unpacking/packing these two types.
if (src_format_comes_from_dom_element_or_image_data &&
SrcFormat != DstFormat &&
(DstFormat == WebGLImageConversion::kDataFormatRGB5999 ||
DstFormat == WebGLImageConversion::kDataFormatRGB10F11F11F)) {
NOTREACHED();
return;
}
typedef typename DataTypeForFormat<SrcFormat>::Type SrcType;
typedef typename DataTypeForFormat<DstFormat>::Type DstType;
const int kIntermFormat = IntermediateFormat<DstFormat>::value;
typedef typename DataTypeForFormat<kIntermFormat>::Type IntermType;
// stride here could be negative.
const ptrdiff_t src_stride_in_elements =
src_stride_ / static_cast<int>(sizeof(SrcType));
const ptrdiff_t dst_stride_in_elements =
dst_stride_ / static_cast<int>(sizeof(DstType));
const bool kTrivialUnpack = SrcFormat == kIntermFormat;
const bool kTrivialPack = DstFormat == kIntermFormat &&
alphaOp == WebGLImageConversion::kAlphaDoNothing;
DCHECK(!kTrivialUnpack || !kTrivialPack);
const SrcType* src_row_start =
static_cast<const SrcType*>(static_cast<const void*>(
static_cast<const uint8_t*>(src_start_) +
((src_stride_ * src_sub_rectangle_.Y()) + src_row_offset_)));
// If packing multiple images into a 3D texture, and flipY is true,
// then the sub-rectangle is pointing at the start of the
// "bottommost" of those images. Since the source pointer strides in
// the positive direction, we need to back it up to point at the
// last, or "topmost", of these images.
if (dst_stride_ < 0 && depth_ > 1) {
src_row_start -=
(depth_ - 1) * src_stride_in_elements * unpack_image_height_;
}
DstType* dst_row_start = static_cast<DstType*>(dst_start_);
if (kTrivialUnpack) {
for (int d = 0; d < depth_; ++d) {
for (int i = 0; i < src_sub_rectangle_.Height(); ++i) {
Pack<DstFormat, alphaOp>(src_row_start, dst_row_start,
src_sub_rectangle_.Width());
src_row_start += src_stride_in_elements;
dst_row_start += dst_stride_in_elements;
}
src_row_start += src_stride_in_elements *
(unpack_image_height_ - src_sub_rectangle_.Height());
}
} else if (kTrivialPack) {
for (int d = 0; d < depth_; ++d) {
for (int i = 0; i < src_sub_rectangle_.Height(); ++i) {
Unpack<SrcFormat>(src_row_start, dst_row_start,
src_sub_rectangle_.Width());
src_row_start += src_stride_in_elements;
dst_row_start += dst_stride_in_elements;
}
src_row_start += src_stride_in_elements *
(unpack_image_height_ - src_sub_rectangle_.Height());
}
} else {
for (int d = 0; d < depth_; ++d) {
for (int i = 0; i < src_sub_rectangle_.Height(); ++i) {
Unpack<SrcFormat>(src_row_start,
reinterpret_cast<IntermType*>(
unpacked_intermediate_src_data_.get()),
src_sub_rectangle_.Width());
Pack<DstFormat, alphaOp>(reinterpret_cast<IntermType*>(
unpacked_intermediate_src_data_.get()),
dst_row_start, src_sub_rectangle_.Width());
src_row_start += src_stride_in_elements;
dst_row_start += dst_stride_in_elements;
}
src_row_start += src_stride_in_elements *
(unpack_image_height_ - src_sub_rectangle_.Height());
}
}
success_ = true;
return;
}
bool FrameIsValid(const SkBitmap& frame_bitmap) {
return !frame_bitmap.isNull() && !frame_bitmap.empty() &&
frame_bitmap.colorType() == kN32_SkColorType;
}
} // anonymous namespace
WebGLImageConversion::PixelStoreParams::PixelStoreParams()
: alignment(4),
row_length(0),
image_height(0),
skip_pixels(0),
skip_rows(0),
skip_images(0) {}
bool WebGLImageConversion::ComputeFormatAndTypeParameters(
GLenum format,
GLenum type,
unsigned* components_per_pixel,
unsigned* bytes_per_component) {
switch (format) {
case GL_ALPHA:
case GL_LUMINANCE:
case GL_RED:
case GL_RED_INTEGER:
case GL_DEPTH_COMPONENT:
case GL_DEPTH_STENCIL: // Treat it as one component.
*components_per_pixel = 1;
break;
case GL_LUMINANCE_ALPHA:
case GL_RG:
case GL_RG_INTEGER:
*components_per_pixel = 2;
break;
case GL_RGB:
case GL_RGB_INTEGER:
case GL_SRGB_EXT: // GL_EXT_sRGB
*components_per_pixel = 3;
break;
case GL_RGBA:
case GL_RGBA_INTEGER:
case GL_BGRA_EXT: // GL_EXT_texture_format_BGRA8888
case GL_SRGB_ALPHA_EXT: // GL_EXT_sRGB
*components_per_pixel = 4;
break;
default:
return false;
}
switch (type) {
case GL_BYTE:
*bytes_per_component = sizeof(GLbyte);
break;
case GL_UNSIGNED_BYTE:
*bytes_per_component = sizeof(GLubyte);
break;
case GL_SHORT:
*bytes_per_component = sizeof(GLshort);
break;
case GL_UNSIGNED_SHORT:
*bytes_per_component = sizeof(GLushort);
break;
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
*components_per_pixel = 1;
*bytes_per_component = sizeof(GLushort);
break;
case GL_INT:
*bytes_per_component = sizeof(GLint);
break;
case GL_UNSIGNED_INT:
*bytes_per_component = sizeof(GLuint);
break;
case GL_UNSIGNED_INT_24_8_OES:
case GL_UNSIGNED_INT_10F_11F_11F_REV:
case GL_UNSIGNED_INT_5_9_9_9_REV:
case GL_UNSIGNED_INT_2_10_10_10_REV:
*components_per_pixel = 1;
*bytes_per_component = sizeof(GLuint);
break;
case GL_FLOAT: // OES_texture_float
*bytes_per_component = sizeof(GLfloat);
break;
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES: // OES_texture_half_float
*bytes_per_component = sizeof(GLushort);
break;
default:
return false;
}
return true;
}
GLenum WebGLImageConversion::ComputeImageSizeInBytes(
GLenum format,
GLenum type,
GLsizei width,
GLsizei height,
GLsizei depth,
const PixelStoreParams& params,
unsigned* image_size_in_bytes,
unsigned* padding_in_bytes,
unsigned* skip_size_in_bytes) {
DCHECK(image_size_in_bytes);
DCHECK(params.alignment == 1 || params.alignment == 2 ||
params.alignment == 4 || params.alignment == 8);
DCHECK_GE(params.row_length, 0);
DCHECK_GE(params.image_height, 0);
DCHECK_GE(params.skip_pixels, 0);
DCHECK_GE(params.skip_rows, 0);
DCHECK_GE(params.skip_images, 0);
if (width < 0 || height < 0 || depth < 0)
return GL_INVALID_VALUE;
if (!width || !height || !depth) {
*image_size_in_bytes = 0;
if (padding_in_bytes)
*padding_in_bytes = 0;
if (skip_size_in_bytes)
*skip_size_in_bytes = 0;
return GL_NO_ERROR;
}
int row_length = params.row_length > 0 ? params.row_length : width;
int image_height = params.image_height > 0 ? params.image_height : height;
unsigned bytes_per_component, components_per_pixel;
if (!ComputeFormatAndTypeParameters(format, type, &bytes_per_component,
&components_per_pixel))
return GL_INVALID_ENUM;
unsigned bytes_per_group = bytes_per_component * components_per_pixel;
base::CheckedNumeric<uint32_t> checked_value =
static_cast<uint32_t>(row_length);
checked_value *= bytes_per_group;
if (!checked_value.IsValid())
return GL_INVALID_VALUE;
unsigned last_row_size;
if (params.row_length > 0 && params.row_length != width) {
base::CheckedNumeric<uint32_t> tmp = width;
tmp *= bytes_per_group;
if (!tmp.IsValid())
return GL_INVALID_VALUE;
last_row_size = tmp.ValueOrDie();
} else {
last_row_size = checked_value.ValueOrDie();
}
unsigned padding = 0;
base::CheckedNumeric<uint32_t> checked_residual = checked_value;
checked_residual %= static_cast<uint32_t>(params.alignment);
if (!checked_residual.IsValid()) {
return GL_INVALID_VALUE;
}
unsigned residual = checked_residual.ValueOrDie();
if (residual) {
padding = params.alignment - residual;
checked_value += padding;
}
if (!checked_value.IsValid())
return GL_INVALID_VALUE;
unsigned padded_row_size = checked_value.ValueOrDie();
base::CheckedNumeric<uint32_t> rows = image_height;
rows *= (depth - 1);
// Last image is not affected by IMAGE_HEIGHT parameter.
rows += height;
if (!rows.IsValid())
return GL_INVALID_VALUE;
checked_value *= (rows - 1);
// Last row is not affected by ROW_LENGTH parameter.
checked_value += last_row_size;
if (!checked_value.IsValid())
return GL_INVALID_VALUE;
*image_size_in_bytes = checked_value.ValueOrDie();
if (padding_in_bytes)
*padding_in_bytes = padding;
base::CheckedNumeric<uint32_t> skip_size = 0;
if (params.skip_images > 0) {
base::CheckedNumeric<uint32_t> tmp = padded_row_size;
tmp *= image_height;
tmp *= params.skip_images;
if (!tmp.IsValid())
return GL_INVALID_VALUE;
skip_size += tmp.ValueOrDie();
}
if (params.skip_rows > 0) {
base::CheckedNumeric<uint32_t> tmp = padded_row_size;
tmp *= params.skip_rows;
if (!tmp.IsValid())
return GL_INVALID_VALUE;
skip_size += tmp.ValueOrDie();
}
if (params.skip_pixels > 0) {
base::CheckedNumeric<uint32_t> tmp = bytes_per_group;
tmp *= params.skip_pixels;
if (!tmp.IsValid())
return GL_INVALID_VALUE;
skip_size += tmp.ValueOrDie();
}
if (!skip_size.IsValid())
return GL_INVALID_VALUE;
if (skip_size_in_bytes)
*skip_size_in_bytes = skip_size.ValueOrDie();
checked_value += skip_size.ValueOrDie();
if (!checked_value.IsValid())
return GL_INVALID_VALUE;
return GL_NO_ERROR;
}
WebGLImageConversion::ImageExtractor::ImageExtractor(
Image* image,
ImageHtmlDomSource image_html_dom_source,
bool premultiply_alpha,
bool ignore_color_space) {
image_ = image;
image_html_dom_source_ = image_html_dom_source;
ExtractImage(premultiply_alpha, ignore_color_space);
}
void WebGLImageConversion::ImageExtractor::ExtractImage(
bool premultiply_alpha,
bool ignore_color_space) {
DCHECK(!image_pixel_locker_);
if (!image_)
return;
sk_sp<SkImage> skia_image =
image_->PaintImageForCurrentFrame().GetSwSkImage();
SkImageInfo info =
skia_image ? SkImageInfo::MakeN32Premul(image_->width(), image_->height())
: SkImageInfo::MakeUnknown();
alpha_op_ = kAlphaDoNothing;
bool has_alpha = skia_image ? !skia_image->isOpaque() : true;
bool need_unpremultiplied = has_alpha && !premultiply_alpha;
bool need_color_conversion = !ignore_color_space && skia_image &&
skia_image->colorSpace() &&
!skia_image->colorSpace()->isSRGB();
if ((!skia_image || ignore_color_space || need_unpremultiplied ||
need_color_conversion) &&
image_->Data()) {
// Attempt to get raw unpremultiplied image data.
const bool data_complete = true;
std::unique_ptr<ImageDecoder> decoder(ImageDecoder::Create(
image_->Data(), data_complete, ImageDecoder::kAlphaNotPremultiplied,
ImageDecoder::kDefaultBitDepth,
ignore_color_space ? ColorBehavior::Ignore()
: ColorBehavior::TransformToSRGB()));
if (!decoder || !decoder->FrameCount())
return;
ImageFrame* frame = decoder->DecodeFrameBufferAtIndex(0);
if (!frame || frame->GetStatus() != ImageFrame::kFrameComplete)
return;
has_alpha = frame->HasAlpha();
SkBitmap bitmap = frame->Bitmap();
if (!FrameIsValid(bitmap))
return;
// TODO(fmalita): Partial frames are not supported currently: only fully
// decoded frames make it through. We could potentially relax this and
// use SkImage::MakeFromBitmap(bitmap) to make a copy.
skia_image = frame->FinalizePixelsAndGetImage();
info = bitmap.info();
if (has_alpha && premultiply_alpha)
alpha_op_ = kAlphaDoPremultiply;
} else if (!premultiply_alpha && has_alpha) {
// 1. For texImage2D with HTMLVideoElment input, assume no PremultiplyAlpha
// had been applied and the alpha value for each pixel is 0xFF. This is
// true at present; if it is changed in the future it will need
// adjustment accordingly.
// 2. For texImage2D with HTMLCanvasElement input in which alpha is already
// premultiplied in this port, do AlphaDoUnmultiply if
// UNPACK_PREMULTIPLY_ALPHA_WEBGL is set to false.
if (image_html_dom_source_ != kHtmlDomVideo)
alpha_op_ = kAlphaDoUnmultiply;
}
if (!skia_image)
return;
#if SK_B32_SHIFT
image_source_format_ = kDataFormatRGBA8;
#else
image_source_format_ = kDataFormatBGRA8;
#endif
image_source_unpack_alignment_ =
0; // FIXME: this seems to always be zero - why use at all?
DCHECK(skia_image->width());
DCHECK(skia_image->height());
image_width_ = skia_image->width();
image_height_ = skia_image->height();
// Fail if the image was downsampled because of memory limits.
if (image_width_ != (unsigned)image_->width() ||
image_height_ != (unsigned)image_->height())
return;
image_pixel_locker_.emplace(std::move(skia_image), info.alphaType(),
kN32_SkColorType);
}
unsigned WebGLImageConversion::GetChannelBitsByFormat(GLenum format) {
switch (format) {
case GL_ALPHA:
return kChannelAlpha;
case GL_RED:
case GL_RED_INTEGER:
case GL_R8:
case GL_R8_SNORM:
case GL_R8UI:
case GL_R8I:
case GL_R16UI:
case GL_R16I:
case GL_R32UI:
case GL_R32I:
case GL_R16F:
case GL_R32F:
return kChannelRed;
case GL_RG:
case GL_RG_INTEGER:
case GL_RG8:
case GL_RG8_SNORM:
case GL_RG8UI:
case GL_RG8I:
case GL_RG16UI:
case GL_RG16I:
case GL_RG32UI:
case GL_RG32I:
case GL_RG16F:
case GL_RG32F:
return kChannelRG;
case GL_LUMINANCE:
return kChannelRGB;
case GL_LUMINANCE_ALPHA:
return kChannelRGBA;
case GL_RGB:
case GL_RGB_INTEGER:
case GL_RGB8:
case GL_RGB8_SNORM:
case GL_RGB8UI:
case GL_RGB8I:
case GL_RGB16UI:
case GL_RGB16I:
case GL_RGB32UI:
case GL_RGB32I:
case GL_RGB16F:
case GL_RGB32F:
case GL_RGB565:
case GL_R11F_G11F_B10F:
case GL_RGB9_E5:
case GL_SRGB_EXT:
case GL_SRGB8:
return kChannelRGB;
case GL_RGBA:
case GL_RGBA_INTEGER:
case GL_RGBA8:
case GL_RGBA8_SNORM:
case GL_RGBA8UI:
case GL_RGBA8I:
case GL_RGBA16UI:
case GL_RGBA16I:
case GL_RGBA32UI:
case GL_RGBA32I:
case GL_RGBA16F:
case GL_RGBA32F:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGB10_A2:
case GL_RGB10_A2UI:
case GL_SRGB_ALPHA_EXT:
case GL_SRGB8_ALPHA8:
return kChannelRGBA;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32F:
return kChannelDepth;
case GL_STENCIL:
case GL_STENCIL_INDEX8:
return kChannelStencil;
case GL_DEPTH_STENCIL:
case GL_DEPTH24_STENCIL8:
case GL_DEPTH32F_STENCIL8:
return kChannelDepthStencil;
default:
return 0;
}
}
bool WebGLImageConversion::PackImageData(
Image* image,
const void* pixels,
GLenum format,
GLenum type,
bool flip_y,
AlphaOp alpha_op,
DataFormat source_format,
unsigned source_image_width,
unsigned source_image_height,
const IntRect& source_image_sub_rectangle,
int depth,
unsigned source_unpack_alignment,
int unpack_image_height,
Vector<uint8_t>& data) {
if (!pixels)
return false;
unsigned packed_size;
// Output data is tightly packed (alignment == 1).
PixelStoreParams params;
params.alignment = 1;
if (ComputeImageSizeInBytes(format, type, source_image_sub_rectangle.Width(),
source_image_sub_rectangle.Height(), depth,
params, &packed_size, nullptr,
nullptr) != GL_NO_ERROR)
return false;
data.resize(packed_size);
return PackPixels(reinterpret_cast<const uint8_t*>(pixels), source_format,
source_image_width, source_image_height,
source_image_sub_rectangle, depth, source_unpack_alignment,
unpack_image_height, format, type, alpha_op, data.data(),
flip_y);
}
bool WebGLImageConversion::ExtractImageData(
const void* image_data,
DataFormat source_data_format,
const IntSize& image_data_size,
const IntRect& source_image_sub_rectangle,
int depth,
int unpack_image_height,
GLenum format,
GLenum type,
bool flip_y,
bool premultiply_alpha,
Vector<uint8_t>& data) {
if (!image_data)
return false;
int width = image_data_size.Width();
int height = image_data_size.Height();
unsigned packed_size;
// Output data is tightly packed (alignment == 1).
PixelStoreParams params;
params.alignment = 1;
if (ComputeImageSizeInBytes(format, type, source_image_sub_rectangle.Width(),
source_image_sub_rectangle.Height(), depth,
params, &packed_size, nullptr,
nullptr) != GL_NO_ERROR)
return false;
data.resize(packed_size);
if (!PackPixels(image_data, source_data_format, width, height,
source_image_sub_rectangle, depth, 0, unpack_image_height,
format, type,
premultiply_alpha ? kAlphaDoPremultiply : kAlphaDoNothing,
data.data(), flip_y))
return false;
return true;
}
bool WebGLImageConversion::ExtractTextureData(
unsigned width,
unsigned height,
GLenum format,
GLenum type,
const PixelStoreParams& unpack_params,
bool flip_y,
bool premultiply_alpha,
const void* pixels,
Vector<uint8_t>& data) {
// Assumes format, type, etc. have already been validated.
DataFormat source_data_format = GetDataFormat(format, type);
if (source_data_format == kDataFormatNumFormats)
return false;
// Resize the output buffer.
unsigned int components_per_pixel, bytes_per_component;
if (!ComputeFormatAndTypeParameters(format, type, &components_per_pixel,
&bytes_per_component))
return false;
unsigned bytes_per_pixel = components_per_pixel * bytes_per_component;
data.resize(width * height * bytes_per_pixel);
unsigned image_size_in_bytes, skip_size_in_bytes;
if (ComputeImageSizeInBytes(format, type, width, height, 1, unpack_params,
&image_size_in_bytes, nullptr,
&skip_size_in_bytes) != GL_NO_ERROR)
return false;
const uint8_t* src_data = static_cast<const uint8_t*>(pixels);
if (skip_size_in_bytes) {
src_data += skip_size_in_bytes;
}
if (!PackPixels(src_data, source_data_format,
unpack_params.row_length ? unpack_params.row_length : width,
height, IntRect(0, 0, width, height), 1,
unpack_params.alignment, 0, format, type,
(premultiply_alpha ? kAlphaDoPremultiply : kAlphaDoNothing),
data.data(), flip_y))
return false;
return true;
}
bool WebGLImageConversion::PackPixels(const void* source_data,
DataFormat source_data_format,
unsigned source_data_width,
unsigned source_data_height,
const IntRect& source_data_sub_rectangle,
int depth,
unsigned source_unpack_alignment,
int unpack_image_height,
unsigned destination_format,
unsigned destination_type,
AlphaOp alpha_op,
void* destination_data,
bool flip_y) {
DCHECK_GE(depth, 1);
if (unpack_image_height == 0) {
unpack_image_height = source_data_sub_rectangle.Height();
}
int valid_src = source_data_width * TexelBytesForFormat(source_data_format);
int remainder =
source_unpack_alignment ? (valid_src % source_unpack_alignment) : 0;
int src_stride =
remainder ? (valid_src + source_unpack_alignment - remainder) : valid_src;
int src_row_offset =
source_data_sub_rectangle.X() * TexelBytesForFormat(source_data_format);
DataFormat dst_data_format =
GetDataFormat(destination_format, destination_type);
if (dst_data_format == kDataFormatNumFormats)
return false;
int dst_stride =
source_data_sub_rectangle.Width() * TexelBytesForFormat(dst_data_format);
if (flip_y) {
destination_data =
static_cast<uint8_t*>(destination_data) +
dst_stride * ((depth * source_data_sub_rectangle.Height()) - 1);
dst_stride = -dst_stride;
}
if (!HasAlpha(source_data_format) || !HasColor(source_data_format) ||
!HasColor(dst_data_format))
alpha_op = kAlphaDoNothing;
if (source_data_format == dst_data_format && alpha_op == kAlphaDoNothing) {
const uint8_t* base_ptr = static_cast<const uint8_t*>(source_data) +
src_stride * source_data_sub_rectangle.Y();
const uint8_t* base_end = static_cast<const uint8_t*>(source_data) +
src_stride * source_data_sub_rectangle.MaxY();
// If packing multiple images into a 3D texture, and flipY is true,
// then the sub-rectangle is pointing at the start of the
// "bottommost" of those images. Since the source pointer strides in
// the positive direction, we need to back it up to point at the
// last, or "topmost", of these images.
if (flip_y && depth > 1) {
const ptrdiff_t distance_to_top_image =
(depth - 1) * src_stride * unpack_image_height;
base_ptr -= distance_to_top_image;
base_end -= distance_to_top_image;
}
unsigned row_size = (dst_stride > 0) ? dst_stride : -dst_stride;
uint8_t* dst = static_cast<uint8_t*>(destination_data);
for (int i = 0; i < depth; ++i) {
const uint8_t* ptr = base_ptr;
const uint8_t* ptr_end = base_end;
while (ptr < ptr_end) {
memcpy(dst, ptr + src_row_offset, row_size);
ptr += src_stride;
dst += dst_stride;
}
base_ptr += unpack_image_height * src_stride;
base_end += unpack_image_height * src_stride;
}
return true;
}
FormatConverter converter(source_data_sub_rectangle, depth,
unpack_image_height, source_data, destination_data,
src_stride, src_row_offset, dst_stride);
converter.Convert(source_data_format, dst_data_format, alpha_op);
if (!converter.Success())
return false;
return true;
}
void WebGLImageConversion::UnpackPixels(const uint16_t* source_data,
DataFormat source_data_format,
unsigned pixels_per_row,
uint8_t* destination_data) {
switch (source_data_format) {
case kDataFormatRGBA4444: {
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA4444>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
Unpack<WebGLImageConversion::kDataFormatRGBA4444>(
src_row_start, destination_data, pixels_per_row);
} break;
case kDataFormatRGBA5551: {
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA5551>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
Unpack<WebGLImageConversion::kDataFormatRGBA5551>(
src_row_start, destination_data, pixels_per_row);
} break;
case kDataFormatBGRA8: {
const uint8_t* psrc = (const uint8_t*)source_data;
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatBGRA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(psrc);
Unpack<WebGLImageConversion::kDataFormatBGRA8>(
src_row_start, destination_data, pixels_per_row);
} break;
default:
break;
}
}
void WebGLImageConversion::PackPixels(const uint8_t* source_data,
DataFormat source_data_format,
unsigned pixels_per_row,
uint8_t* destination_data) {
switch (source_data_format) {
case kDataFormatRA8: {
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
Pack<WebGLImageConversion::kDataFormatRA8,
WebGLImageConversion::kAlphaDoUnmultiply>(
src_row_start, destination_data, pixels_per_row);
} break;
case kDataFormatR8: {
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
Pack<WebGLImageConversion::kDataFormatR8,
WebGLImageConversion::kAlphaDoUnmultiply>(
src_row_start, destination_data, pixels_per_row);
} break;
case kDataFormatRGBA8: {
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
Pack<WebGLImageConversion::kDataFormatRGBA8,
WebGLImageConversion::kAlphaDoUnmultiply>(
src_row_start, destination_data, pixels_per_row);
} break;
case kDataFormatRGBA4444: {
uint16_t* pdst = (uint16_t*)destination_data;
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA4444>::Type DstType;
DstType* dst_row_start = static_cast<DstType*>(pdst);
Pack<WebGLImageConversion::kDataFormatRGBA4444,
WebGLImageConversion::kAlphaDoNothing>(src_row_start, dst_row_start,
pixels_per_row);
} break;
case kDataFormatRGBA5551: {
uint16_t* pdst = (uint16_t*)destination_data;
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA5551>::Type DstType;
DstType* dst_row_start = static_cast<DstType*>(pdst);
Pack<WebGLImageConversion::kDataFormatRGBA5551,
WebGLImageConversion::kAlphaDoNothing>(src_row_start, dst_row_start,
pixels_per_row);
} break;
case kDataFormatRGB565: {
uint16_t* pdst = (uint16_t*)destination_data;
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGBA8>::Type SrcType;
const SrcType* src_row_start = static_cast<const SrcType*>(source_data);
typedef typename DataTypeForFormat<
WebGLImageConversion::kDataFormatRGB565>::Type DstType;
DstType* dst_row_start = static_cast<DstType*>(pdst);
Pack<WebGLImageConversion::kDataFormatRGB565,
WebGLImageConversion::kAlphaDoNothing>(src_row_start, dst_row_start,
pixels_per_row);
} break;
default:
break;
}
}
} // namespace blink