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webkit / WebKit / bf056b1d8af73ed440f57cf7c1d3980c8edbf021 / . / Source / ThirdParty / ANGLE / src / image_util / loadimage.cpp
blob: ff5ba48333c8b842378d751cb15366bb3dfe5e69 [file] [log] [blame]
//
// Copyright 2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// angle_loadimage.cpp: Defines image loading functions.
#include "image_util/loadimage.h"
#include "common/mathutil.h"
#include "common/platform.h"
#include "image_util/imageformats.h"
namespace angle
{
void LoadA8ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
#if defined(ANGLE_USE_SSE)
if (gl::supportsSSE2())
{
__m128i zeroWide = _mm_setzero_si128();
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest = priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch,
outputDepthPitch);
size_t x = 0;
// Make output writes aligned
for (; ((reinterpret_cast<intptr_t>(&dest[x]) & 0xF) != 0 && x < width); x++)
{
dest[x] = static_cast<uint32_t>(source[x]) << 24;
}
for (; x + 7 < width; x += 8)
{
__m128i sourceData =
_mm_loadl_epi64(reinterpret_cast<const __m128i *>(&source[x]));
// Interleave each byte to 16bit, make the lower byte to zero
sourceData = _mm_unpacklo_epi8(zeroWide, sourceData);
// Interleave each 16bit to 32bit, make the lower 16bit to zero
__m128i lo = _mm_unpacklo_epi16(zeroWide, sourceData);
__m128i hi = _mm_unpackhi_epi16(zeroWide, sourceData);
_mm_store_si128(reinterpret_cast<__m128i *>(&dest[x]), lo);
_mm_store_si128(reinterpret_cast<__m128i *>(&dest[x + 4]), hi);
}
// Handle the remainder
for (; x < width; x++)
{
dest[x] = static_cast<uint32_t>(source[x]) << 24;
}
}
}
return;
}
#endif
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = static_cast<uint32_t>(source[x]) << 24;
}
}
}
}
void LoadA8ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
// Same as loading to RGBA
LoadA8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
outputRowPitch, outputDepthPitch);
}
void LoadA32FToRGBA32F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
float *dest =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = 0.0f;
dest[4 * x + 1] = 0.0f;
dest[4 * x + 2] = 0.0f;
dest[4 * x + 3] = source[x];
}
}
}
}
void LoadA16FToRGBA16F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = 0;
dest[4 * x + 1] = 0;
dest[4 * x + 2] = 0;
dest[4 * x + 3] = source[x];
}
}
}
}
void LoadL8ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint8_t sourceVal = source[x];
dest[4 * x + 0] = sourceVal;
dest[4 * x + 1] = sourceVal;
dest[4 * x + 2] = sourceVal;
dest[4 * x + 3] = 0xFF;
}
}
}
}
void LoadL8ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
// Same as loading to RGBA
LoadL8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
outputRowPitch, outputDepthPitch);
}
void LoadL32FToRGBA32F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
float *dest =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = source[x];
dest[4 * x + 1] = source[x];
dest[4 * x + 2] = source[x];
dest[4 * x + 3] = 1.0f;
}
}
}
}
void LoadL16FToRGBA16F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = source[x];
dest[4 * x + 1] = source[x];
dest[4 * x + 2] = source[x];
dest[4 * x + 3] = gl::Float16One;
}
}
}
}
void LoadLA8ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = source[2 * x + 0];
dest[4 * x + 1] = source[2 * x + 0];
dest[4 * x + 2] = source[2 * x + 0];
dest[4 * x + 3] = source[2 * x + 1];
}
}
}
}
void LoadLA8ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
// Same as loading to RGBA
LoadLA8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
outputRowPitch, outputDepthPitch);
}
void LoadLA32FToRGBA32F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
float *dest =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = source[2 * x + 0];
dest[4 * x + 1] = source[2 * x + 0];
dest[4 * x + 2] = source[2 * x + 0];
dest[4 * x + 3] = source[2 * x + 1];
}
}
}
}
void LoadLA16FToRGBA16F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = source[2 * x + 0];
dest[4 * x + 1] = source[2 * x + 0];
dest[4 * x + 2] = source[2 * x + 0];
dest[4 * x + 3] = source[2 * x + 1];
}
}
}
}
void LoadRGB8ToBGR565(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint8_t r8 = source[x * 3 + 0];
uint8_t g8 = source[x * 3 + 1];
uint8_t b8 = source[x * 3 + 2];
auto r5 = static_cast<uint16_t>(r8 >> 3);
auto g6 = static_cast<uint16_t>(g8 >> 2);
auto b5 = static_cast<uint16_t>(b8 >> 3);
dest[x] = (r5 << 11) | (g6 << 5) | b5;
}
}
}
}
void LoadRGB565ToBGR565(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
// The GL type RGB is packed with with red in the MSB, while the D3D11 type BGR
// is packed with red in the LSB
auto rgb = source[x];
uint16_t r5 = gl::getShiftedData<5, 11>(rgb);
uint16_t g6 = gl::getShiftedData<6, 5>(rgb);
uint16_t b5 = gl::getShiftedData<5, 0>(rgb);
dest[x] = (r5 << 11) | (g6 << 5) | b5;
}
}
}
}
void LoadRGB8ToBGRX8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = source[x * 3 + 2];
dest[4 * x + 1] = source[x * 3 + 1];
dest[4 * x + 2] = source[x * 3 + 0];
dest[4 * x + 3] = 0xFF;
}
}
}
}
void LoadRG8ToBGRX8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = 0x00;
dest[4 * x + 1] = source[x * 2 + 1];
dest[4 * x + 2] = source[x * 2 + 0];
dest[4 * x + 3] = 0xFF;
}
}
}
}
void LoadR8ToBGRX8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint8_t *source =
priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[4 * x + 0] = 0x00;
dest[4 * x + 1] = 0x00;
dest[4 * x + 2] = source[x];
dest[4 * x + 3] = 0xFF;
}
}
}
}
void LoadR5G6B5ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t rgb = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((rgb & 0x001F) << 3) | ((rgb & 0x001F) >> 2));
dest[4 * x + 1] =
static_cast<uint8_t>(((rgb & 0x07E0) >> 3) | ((rgb & 0x07E0) >> 9));
dest[4 * x + 2] =
static_cast<uint8_t>(((rgb & 0xF800) >> 8) | ((rgb & 0xF800) >> 13));
dest[4 * x + 3] = 0xFF;
}
}
}
}
void LoadR5G6B5ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t rgb = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((rgb & 0xF800) >> 8) | ((rgb & 0xF800) >> 13));
dest[4 * x + 1] =
static_cast<uint8_t>(((rgb & 0x07E0) >> 3) | ((rgb & 0x07E0) >> 9));
dest[4 * x + 2] =
static_cast<uint8_t>(((rgb & 0x001F) << 3) | ((rgb & 0x001F) >> 2));
dest[4 * x + 3] = 0xFF;
}
}
}
}
void LoadRGBA8ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
#if defined(ANGLE_USE_SSE)
if (gl::supportsSSE2())
{
__m128i brMask = _mm_set1_epi32(0x00ff00ff);
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest = priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch,
outputDepthPitch);
size_t x = 0;
// Make output writes aligned
for (; ((reinterpret_cast<intptr_t>(&dest[x]) & 15) != 0) && x < width; x++)
{
uint32_t rgba = source[x];
dest[x] = (ANGLE_ROTL(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
}
for (; x + 3 < width; x += 4)
{
__m128i sourceData =
_mm_loadu_si128(reinterpret_cast<const __m128i *>(&source[x]));
// Mask out g and a, which don't change
__m128i gaComponents = _mm_andnot_si128(brMask, sourceData);
// Mask out b and r
__m128i brComponents = _mm_and_si128(sourceData, brMask);
// Swap b and r
__m128i brSwapped = _mm_shufflehi_epi16(
_mm_shufflelo_epi16(brComponents, _MM_SHUFFLE(2, 3, 0, 1)),
_MM_SHUFFLE(2, 3, 0, 1));
__m128i result = _mm_or_si128(gaComponents, brSwapped);
_mm_store_si128(reinterpret_cast<__m128i *>(&dest[x]), result);
}
// Perform leftover writes
for (; x < width; x++)
{
uint32_t rgba = source[x];
dest[x] = (ANGLE_ROTL(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
}
}
}
return;
}
#endif
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint32_t rgba = source[x];
dest[x] = (ANGLE_ROTL(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
}
}
}
}
void LoadRGBA8ToBGRA4(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint32_t rgba8 = source[x];
auto r4 = static_cast<uint16_t>((rgba8 & 0x000000FF) >> 4);
auto g4 = static_cast<uint16_t>((rgba8 & 0x0000FF00) >> 12);
auto b4 = static_cast<uint16_t>((rgba8 & 0x00FF0000) >> 20);
auto a4 = static_cast<uint16_t>((rgba8 & 0xFF000000) >> 28);
dest[x] = (a4 << 12) | (r4 << 8) | (g4 << 4) | b4;
}
}
}
}
void LoadRGBA4ToARGB4(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = ANGLE_ROTR16(source[x], 4);
}
}
}
}
void LoadRGBA4ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t rgba = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4));
dest[4 * x + 1] =
static_cast<uint8_t>(((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8));
dest[4 * x + 2] =
static_cast<uint8_t>(((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12));
dest[4 * x + 3] =
static_cast<uint8_t>(((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0));
}
}
}
}
void LoadRGBA4ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t rgba = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12));
dest[4 * x + 1] =
static_cast<uint8_t>(((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8));
dest[4 * x + 2] =
static_cast<uint8_t>(((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4));
dest[4 * x + 3] =
static_cast<uint8_t>(((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0));
}
}
}
}
void LoadBGRA4ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t bgra = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((bgra & 0xF000) >> 8) | ((bgra & 0xF000) >> 12));
dest[4 * x + 1] =
static_cast<uint8_t>(((bgra & 0x0F00) >> 4) | ((bgra & 0x0F00) >> 8));
dest[4 * x + 2] =
static_cast<uint8_t>(((bgra & 0x00F0) << 0) | ((bgra & 0x00F0) >> 4));
dest[4 * x + 3] =
static_cast<uint8_t>(((bgra & 0x000F) << 4) | ((bgra & 0x000F) >> 0));
}
}
}
}
void LoadRGBA8ToBGR5A1(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint32_t rgba8 = source[x];
auto r5 = static_cast<uint16_t>((rgba8 & 0x000000FF) >> 3);
auto g5 = static_cast<uint16_t>((rgba8 & 0x0000FF00) >> 11);
auto b5 = static_cast<uint16_t>((rgba8 & 0x00FF0000) >> 19);
auto a1 = static_cast<uint16_t>((rgba8 & 0xFF000000) >> 31);
dest[x] = (a1 << 15) | (r5 << 10) | (g5 << 5) | b5;
}
}
}
}
void LoadRGB10A2ToBGR5A1(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const R10G10B10A2 *source =
priv::OffsetDataPointer<R10G10B10A2>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
R10G10B10A2 rgb10a2 = source[x];
uint16_t r5 = static_cast<uint16_t>(rgb10a2.R >> 5u);
uint16_t g5 = static_cast<uint16_t>(rgb10a2.G >> 5u);
uint16_t b5 = static_cast<uint16_t>(rgb10a2.B >> 5u);
uint16_t a1 = static_cast<uint16_t>(rgb10a2.A >> 1u);
dest[x] = (a1 << 15) | (r5 << 10) | (g5 << 5) | b5;
}
}
}
}
void LoadRGB5A1ToA1RGB5(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = ANGLE_ROTR16(source[x], 1);
}
}
}
}
void LoadRGB5A1ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t rgba = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3));
dest[4 * x + 1] =
static_cast<uint8_t>(((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8));
dest[4 * x + 2] =
static_cast<uint8_t>(((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13));
dest[4 * x + 3] = static_cast<uint8_t>((rgba & 0x0001) ? 0xFF : 0);
}
}
}
}
void LoadRGB5A1ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t rgba = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13));
dest[4 * x + 1] =
static_cast<uint8_t>(((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8));
dest[4 * x + 2] =
static_cast<uint8_t>(((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3));
dest[4 * x + 3] = static_cast<uint8_t>((rgba & 0x0001) ? 0xFF : 0);
}
}
}
}
void LoadBGR5A1ToBGRA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint16_t bgra = source[x];
dest[4 * x + 0] =
static_cast<uint8_t>(((bgra & 0xF800) >> 8) | ((bgra & 0xF800) >> 13));
dest[4 * x + 1] =
static_cast<uint8_t>(((bgra & 0x07C0) >> 3) | ((bgra & 0x07C0) >> 8));
dest[4 * x + 2] =
static_cast<uint8_t>(((bgra & 0x003E) << 2) | ((bgra & 0x003E) >> 3));
dest[4 * x + 3] = static_cast<uint8_t>((bgra & 0x0001) ? 0xFF : 0);
}
}
}
}
void LoadRGB10A2ToRGBA8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint8_t *dest =
priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint32_t rgba = source[x];
dest[4 * x + 0] = static_cast<uint8_t>((rgba & 0x000003FF) >> 2);
dest[4 * x + 1] = static_cast<uint8_t>((rgba & 0x000FFC00) >> 12);
dest[4 * x + 2] = static_cast<uint8_t>((rgba & 0x3FF00000) >> 22);
dest[4 * x + 3] = static_cast<uint8_t>(((rgba & 0xC0000000) >> 30) * 0x55);
}
}
}
}
void LoadRGB10A2ToRGB10X2(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = source[x] | 0xC0000000;
}
}
}
}
void LoadRGB16FToRGB9E5(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = gl::convertRGBFloatsTo999E5(gl::float16ToFloat32(source[x * 3 + 0]),
gl::float16ToFloat32(source[x * 3 + 1]),
gl::float16ToFloat32(source[x * 3 + 2]));
}
}
}
}
void LoadRGB32FToRGB9E5(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = gl::convertRGBFloatsTo999E5(source[x * 3 + 0], source[x * 3 + 1],
source[x * 3 + 2]);
}
}
}
}
void LoadRGB16FToRG11B10F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint16_t *source =
priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = (gl::float32ToFloat11(gl::float16ToFloat32(source[x * 3 + 0])) << 0) |
(gl::float32ToFloat11(gl::float16ToFloat32(source[x * 3 + 1])) << 11) |
(gl::float32ToFloat10(gl::float16ToFloat32(source[x * 3 + 2])) << 22);
}
}
}
}
void LoadRGB32FToRG11B10F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = (gl::float32ToFloat11(source[x * 3 + 0]) << 0) |
(gl::float32ToFloat11(source[x * 3 + 1]) << 11) |
(gl::float32ToFloat10(source[x * 3 + 2]) << 22);
}
}
}
}
void LoadG8R24ToR24G8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint32_t d = source[x] >> 8;
uint8_t s = source[x] & 0xFF;
dest[x] = d | (s << 24);
}
}
}
}
void LoadD24S8ToD32FS8X24(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
float *destDepth =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
uint32_t *destStencil =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch) +
1;
for (size_t x = 0; x < width; x++)
{
destDepth[x * 2] = (source[x] & 0xFFFFFF) / static_cast<float>(0xFFFFFF);
destStencil[x * 2] = source[x] & 0xFF000000;
}
}
}
}
void LoadD32FToD32F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
float *dest =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = gl::clamp01(source[x]);
}
}
}
}
void LoadD32FS8X24ToD24S8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *sourceDepth =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
const uint32_t *sourceStencil =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch) + 1;
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
uint32_t d = static_cast<uint32_t>(gl::clamp01(sourceDepth[x * 2]) * 0xFFFFFF);
uint32_t s = sourceStencil[x * 2] & 0xFF000000;
dest[x] = d | s;
}
}
}
}
void LoadX24S8ToS8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source = reinterpret_cast<const uint32_t *>(
input + (y * inputRowPitch) + (z * inputDepthPitch));
uint8_t *destStencil =
reinterpret_cast<uint8_t *>(output + (y * outputRowPitch) + (z * outputDepthPitch));
for (size_t x = 0; x < width; x++)
{
destStencil[x] = (source[x] & 0xFF);
}
}
}
}
void LoadX32S8ToS8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source = reinterpret_cast<const uint32_t *>(
input + (y * inputRowPitch) + (z * inputDepthPitch));
uint8_t *destStencil =
reinterpret_cast<uint8_t *>(output + (y * outputRowPitch) + (z * outputDepthPitch));
for (size_t x = 0; x < width; x++)
{
destStencil[x] = (source[(x * 2) + 1] & 0xFF);
}
}
}
}
void LoadD32FS8X24ToD32F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *sourceDepth =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
float *destDepth =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
destDepth[x] = gl::clamp01(sourceDepth[x * 2]);
}
}
}
}
void LoadD32FS8X24ToD32FS8X24(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *sourceDepth =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
const uint32_t *sourceStencil =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch) + 1;
float *destDepth =
priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
uint32_t *destStencil =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch) +
1;
for (size_t x = 0; x < width; x++)
{
destDepth[x * 2] = gl::clamp01(sourceDepth[x * 2]);
destStencil[x * 2] = sourceStencil[x * 2] & 0xFF000000;
}
}
}
}
void LoadRGB32FToRGBA16F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x * 4 + 0] = gl::float32ToFloat16(source[x * 3 + 0]);
dest[x * 4 + 1] = gl::float32ToFloat16(source[x * 3 + 1]);
dest[x * 4 + 2] = gl::float32ToFloat16(source[x * 3 + 2]);
dest[x * 4 + 3] = gl::Float16One;
}
}
}
}
void LoadRGB32FToRGB16F(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const float *source =
priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x * 3 + 0] = gl::float32ToFloat16(source[x * 3 + 0]);
dest[x * 3 + 1] = gl::float32ToFloat16(source[x * 3 + 1]);
dest[x * 3 + 2] = gl::float32ToFloat16(source[x * 3 + 2]);
}
}
}
}
void LoadR32ToR16(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint16_t *dest =
priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = source[x] >> 16;
}
}
}
}
void LoadR32ToR24G8(size_t width,
size_t height,
size_t depth,
const uint8_t *input,
size_t inputRowPitch,
size_t inputDepthPitch,
uint8_t *output,
size_t outputRowPitch,
size_t outputDepthPitch)
{
for (size_t z = 0; z < depth; z++)
{
for (size_t y = 0; y < height; y++)
{
const uint32_t *source =
priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
uint32_t *dest =
priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
for (size_t x = 0; x < width; x++)
{
dest[x] = source[x] >> 8;
}
}
}
}
} // namespace angle