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Surface.cpp
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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "Surface.hpp"
#include "Color.hpp"
#include "Context.hpp"
#include "ETC_Decoder.hpp"
#include "Renderer.hpp"
#include "Common/Half.hpp"
#include "Common/Memory.hpp"
#include "Common/CPUID.hpp"
#include "Common/Resource.hpp"
#include "Common/Debug.hpp"
#include "Reactor/Reactor.hpp"
#if defined(__i386__) || defined(__x86_64__)
#include <xmmintrin.h>
#include <emmintrin.h>
#endif
#undef min
#undef max
namespace sw
{
extern bool quadLayoutEnabled;
extern bool complementaryDepthBuffer;
extern TranscendentalPrecision logPrecision;
unsigned int *Surface::palette = 0;
unsigned int Surface::paletteID = 0;
void Surface::Buffer::write(int x, int y, int z, const Color<float> &color)
{
ASSERT((x >= -border) && (x < (width + border)));
ASSERT((y >= -border) && (y < (height + border)));
ASSERT((z >= 0) && (z < depth));
byte *element = (byte*)buffer + (x + border) * bytes + (y + border) * pitchB + z * samples * sliceB;
for(int i = 0; i < samples; i++)
{
write(element, color);
element += sliceB;
}
}
void Surface::Buffer::write(int x, int y, const Color<float> &color)
{
ASSERT((x >= -border) && (x < (width + border)));
ASSERT((y >= -border) && (y < (height + border)));
byte *element = (byte*)buffer + (x + border) * bytes + (y + border) * pitchB;
for(int i = 0; i < samples; i++)
{
write(element, color);
element += sliceB;
}
}
inline void Surface::Buffer::write(void *element, const Color<float> &color)
{
float r = color.r;
float g = color.g;
float b = color.b;
float a = color.a;
if(isSRGBformat(format))
{
r = linearToSRGB(r);
g = linearToSRGB(g);
b = linearToSRGB(b);
}
switch(format)
{
case FORMAT_A8:
*(unsigned char*)element = unorm<8>(a);
break;
case FORMAT_R8_SNORM:
*(char*)element = snorm<8>(r);
break;
case FORMAT_R8:
*(unsigned char*)element = unorm<8>(r);
break;
case FORMAT_R8I:
*(char*)element = scast<8>(r);
break;
case FORMAT_R8UI:
*(unsigned char*)element = ucast<8>(r);
break;
case FORMAT_R16I:
*(short*)element = scast<16>(r);
break;
case FORMAT_R16UI:
*(unsigned short*)element = ucast<16>(r);
break;
case FORMAT_R32I:
*(int*)element = static_cast<int>(r);
break;
case FORMAT_R32UI:
*(unsigned int*)element = static_cast<unsigned int>(r);
break;
case FORMAT_R3G3B2:
*(unsigned char*)element = (unorm<3>(r) << 5) | (unorm<3>(g) << 2) | (unorm<2>(b) << 0);
break;
case FORMAT_A8R3G3B2:
*(unsigned short*)element = (unorm<8>(a) << 8) | (unorm<3>(r) << 5) | (unorm<3>(g) << 2) | (unorm<2>(b) << 0);
break;
case FORMAT_X4R4G4B4:
*(unsigned short*)element = 0xF000 | (unorm<4>(r) << 8) | (unorm<4>(g) << 4) | (unorm<4>(b) << 0);
break;
case FORMAT_A4R4G4B4:
*(unsigned short*)element = (unorm<4>(a) << 12) | (unorm<4>(r) << 8) | (unorm<4>(g) << 4) | (unorm<4>(b) << 0);
break;
case FORMAT_R4G4B4A4:
*(unsigned short*)element = (unorm<4>(r) << 12) | (unorm<4>(g) << 8) | (unorm<4>(b) << 4) | (unorm<4>(a) << 0);
break;
case FORMAT_R5G6B5:
*(unsigned short*)element = (unorm<5>(r) << 11) | (unorm<6>(g) << 5) | (unorm<5>(b) << 0);
break;
case FORMAT_A1R5G5B5:
*(unsigned short*)element = (unorm<1>(a) << 15) | (unorm<5>(r) << 10) | (unorm<5>(g) << 5) | (unorm<5>(b) << 0);
break;
case FORMAT_R5G5B5A1:
*(unsigned short*)element = (unorm<5>(r) << 11) | (unorm<5>(g) << 6) | (unorm<5>(b) << 1) | (unorm<5>(a) << 0);
break;
case FORMAT_X1R5G5B5:
*(unsigned short*)element = 0x8000 | (unorm<5>(r) << 10) | (unorm<5>(g) << 5) | (unorm<5>(b) << 0);
break;
case FORMAT_A8R8G8B8:
*(unsigned int*)element = (unorm<8>(a) << 24) | (unorm<8>(r) << 16) | (unorm<8>(g) << 8) | (unorm<8>(b) << 0);
break;
case FORMAT_X8R8G8B8:
*(unsigned int*)element = 0xFF000000 | (unorm<8>(r) << 16) | (unorm<8>(g) << 8) | (unorm<8>(b) << 0);
break;
case FORMAT_A8B8G8R8_SNORM:
*(unsigned int*)element = (static_cast<unsigned int>(snorm<8>(a)) << 24) |
(static_cast<unsigned int>(snorm<8>(b)) << 16) |
(static_cast<unsigned int>(snorm<8>(g)) << 8) |
(static_cast<unsigned int>(snorm<8>(r)) << 0);
break;
case FORMAT_A8B8G8R8:
case FORMAT_SRGB8_A8:
*(unsigned int*)element = (unorm<8>(a) << 24) | (unorm<8>(b) << 16) | (unorm<8>(g) << 8) | (unorm<8>(r) << 0);
break;
case FORMAT_A8B8G8R8I:
*(unsigned int*)element = (static_cast<unsigned int>(scast<8>(a)) << 24) |
(static_cast<unsigned int>(scast<8>(b)) << 16) |
(static_cast<unsigned int>(scast<8>(g)) << 8) |
(static_cast<unsigned int>(scast<8>(r)) << 0);
break;
case FORMAT_A8B8G8R8UI:
*(unsigned int*)element = (ucast<8>(a) << 24) | (ucast<8>(b) << 16) | (ucast<8>(g) << 8) | (ucast<8>(r) << 0);
break;
case FORMAT_X8B8G8R8_SNORM:
*(unsigned int*)element = 0x7F000000 |
(static_cast<unsigned int>(snorm<8>(b)) << 16) |
(static_cast<unsigned int>(snorm<8>(g)) << 8) |
(static_cast<unsigned int>(snorm<8>(r)) << 0);
break;
case FORMAT_X8B8G8R8:
case FORMAT_SRGB8_X8:
*(unsigned int*)element = 0xFF000000 | (unorm<8>(b) << 16) | (unorm<8>(g) << 8) | (unorm<8>(r) << 0);
break;
case FORMAT_X8B8G8R8I:
*(unsigned int*)element = 0x7F000000 |
(static_cast<unsigned int>(scast<8>(b)) << 16) |
(static_cast<unsigned int>(scast<8>(g)) << 8) |
(static_cast<unsigned int>(scast<8>(r)) << 0);
case FORMAT_X8B8G8R8UI:
*(unsigned int*)element = 0xFF000000 | (ucast<8>(b) << 16) | (ucast<8>(g) << 8) | (ucast<8>(r) << 0);
break;
case FORMAT_A2R10G10B10:
*(unsigned int*)element = (unorm<2>(a) << 30) | (unorm<10>(r) << 20) | (unorm<10>(g) << 10) | (unorm<10>(b) << 0);
break;
case FORMAT_A2B10G10R10:
case FORMAT_A2B10G10R10UI:
*(unsigned int*)element = (unorm<2>(a) << 30) | (unorm<10>(b) << 20) | (unorm<10>(g) << 10) | (unorm<10>(r) << 0);
break;
case FORMAT_G8R8_SNORM:
*(unsigned short*)element = (static_cast<unsigned short>(snorm<8>(g)) << 8) |
(static_cast<unsigned short>(snorm<8>(r)) << 0);
break;
case FORMAT_G8R8:
*(unsigned short*)element = (unorm<8>(g) << 8) | (unorm<8>(r) << 0);
break;
case FORMAT_G8R8I:
*(unsigned short*)element = (static_cast<unsigned short>(scast<8>(g)) << 8) |
(static_cast<unsigned short>(scast<8>(r)) << 0);
break;
case FORMAT_G8R8UI:
*(unsigned short*)element = (ucast<8>(g) << 8) | (ucast<8>(r) << 0);
break;
case FORMAT_G16R16:
*(unsigned int*)element = (unorm<16>(g) << 16) | (unorm<16>(r) << 0);
break;
case FORMAT_G16R16I:
*(unsigned int*)element = (static_cast<unsigned int>(scast<16>(g)) << 16) |
(static_cast<unsigned int>(scast<16>(r)) << 0);
break;
case FORMAT_G16R16UI:
*(unsigned int*)element = (ucast<16>(g) << 16) | (ucast<16>(r) << 0);
break;
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
((unsigned int*)element)[0] = static_cast<unsigned int>(r);
((unsigned int*)element)[1] = static_cast<unsigned int>(g);
break;
case FORMAT_A16B16G16R16:
((unsigned short*)element)[0] = unorm<16>(r);
((unsigned short*)element)[1] = unorm<16>(g);
((unsigned short*)element)[2] = unorm<16>(b);
((unsigned short*)element)[3] = unorm<16>(a);
break;
case FORMAT_A16B16G16R16I:
((unsigned short*)element)[0] = static_cast<unsigned short>(scast<16>(r));
((unsigned short*)element)[1] = static_cast<unsigned short>(scast<16>(g));
((unsigned short*)element)[2] = static_cast<unsigned short>(scast<16>(b));
((unsigned short*)element)[3] = static_cast<unsigned short>(scast<16>(a));
break;
case FORMAT_A16B16G16R16UI:
((unsigned short*)element)[0] = static_cast<unsigned short>(ucast<16>(r));
((unsigned short*)element)[1] = static_cast<unsigned short>(ucast<16>(g));
((unsigned short*)element)[2] = static_cast<unsigned short>(ucast<16>(b));
((unsigned short*)element)[3] = static_cast<unsigned short>(ucast<16>(a));
break;
case FORMAT_X16B16G16R16I:
((unsigned short*)element)[0] = static_cast<unsigned short>(scast<16>(r));
((unsigned short*)element)[1] = static_cast<unsigned short>(scast<16>(g));
((unsigned short*)element)[2] = static_cast<unsigned short>(scast<16>(b));
break;
case FORMAT_X16B16G16R16UI:
((unsigned short*)element)[0] = static_cast<unsigned short>(ucast<16>(r));
((unsigned short*)element)[1] = static_cast<unsigned short>(ucast<16>(g));
((unsigned short*)element)[2] = static_cast<unsigned short>(ucast<16>(b));
break;
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
((unsigned int*)element)[0] = static_cast<unsigned int>(r);
((unsigned int*)element)[1] = static_cast<unsigned int>(g);
((unsigned int*)element)[2] = static_cast<unsigned int>(b);
((unsigned int*)element)[3] = static_cast<unsigned int>(a);
break;
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
((unsigned int*)element)[0] = static_cast<unsigned int>(r);
((unsigned int*)element)[1] = static_cast<unsigned int>(g);
((unsigned int*)element)[2] = static_cast<unsigned int>(b);
break;
case FORMAT_V8U8:
*(unsigned short*)element = (snorm<8>(g) << 8) | (snorm<8>(r) << 0);
break;
case FORMAT_L6V5U5:
*(unsigned short*)element = (unorm<6>(b) << 10) | (snorm<5>(g) << 5) | (snorm<5>(r) << 0);
break;
case FORMAT_Q8W8V8U8:
*(unsigned int*)element = (snorm<8>(a) << 24) | (snorm<8>(b) << 16) | (snorm<8>(g) << 8) | (snorm<8>(r) << 0);
break;
case FORMAT_X8L8V8U8:
*(unsigned int*)element = 0xFF000000 | (unorm<8>(b) << 16) | (snorm<8>(g) << 8) | (snorm<8>(r) << 0);
break;
case FORMAT_V16U16:
*(unsigned int*)element = (snorm<16>(g) << 16) | (snorm<16>(r) << 0);
break;
case FORMAT_A2W10V10U10:
*(unsigned int*)element = (unorm<2>(a) << 30) | (snorm<10>(b) << 20) | (snorm<10>(g) << 10) | (snorm<10>(r) << 0);
break;
case FORMAT_A16W16V16U16:
((unsigned short*)element)[0] = snorm<16>(r);
((unsigned short*)element)[1] = snorm<16>(g);
((unsigned short*)element)[2] = snorm<16>(b);
((unsigned short*)element)[3] = unorm<16>(a);
break;
case FORMAT_Q16W16V16U16:
((unsigned short*)element)[0] = snorm<16>(r);
((unsigned short*)element)[1] = snorm<16>(g);
((unsigned short*)element)[2] = snorm<16>(b);
((unsigned short*)element)[3] = snorm<16>(a);
break;
case FORMAT_R8G8B8:
((unsigned char*)element)[0] = unorm<8>(b);
((unsigned char*)element)[1] = unorm<8>(g);
((unsigned char*)element)[2] = unorm<8>(r);
break;
case FORMAT_B8G8R8:
((unsigned char*)element)[0] = unorm<8>(r);
((unsigned char*)element)[1] = unorm<8>(g);
((unsigned char*)element)[2] = unorm<8>(b);
break;
case FORMAT_R16F:
*(half*)element = (half)r;
break;
case FORMAT_A16F:
*(half*)element = (half)a;
break;
case FORMAT_G16R16F:
((half*)element)[0] = (half)r;
((half*)element)[1] = (half)g;
break;
case FORMAT_X16B16G16R16F_UNSIGNED:
r = max(r, 0.0f); g = max(g, 0.0f); b = max(b, 0.0f);
// Fall through to FORMAT_X16B16G16R16F.
case FORMAT_X16B16G16R16F:
((half*)element)[3] = 1.0f;
// Fall through to FORMAT_B16G16R16F.
case FORMAT_B16G16R16F:
((half*)element)[0] = (half)r;
((half*)element)[1] = (half)g;
((half*)element)[2] = (half)b;
break;
case FORMAT_A16B16G16R16F:
((half*)element)[0] = (half)r;
((half*)element)[1] = (half)g;
((half*)element)[2] = (half)b;
((half*)element)[3] = (half)a;
break;
case FORMAT_A32F:
*(float*)element = a;
break;
case FORMAT_R32F:
*(float*)element = r;
break;
case FORMAT_G32R32F:
((float*)element)[0] = r;
((float*)element)[1] = g;
break;
case FORMAT_X32B32G32R32F_UNSIGNED:
r = max(r, 0.0f); g = max(g, 0.0f); b = max(b, 0.0f);
// Fall through to FORMAT_X32B32G32R32F.
case FORMAT_X32B32G32R32F:
((float*)element)[3] = 1.0f;
// Fall through to FORMAT_B32G32R32F.
case FORMAT_B32G32R32F:
((float*)element)[0] = r;
((float*)element)[1] = g;
((float*)element)[2] = b;
break;
case FORMAT_A32B32G32R32F:
((float*)element)[0] = r;
((float*)element)[1] = g;
((float*)element)[2] = b;
((float*)element)[3] = a;
break;
case FORMAT_D32F:
case FORMAT_D32FS8:
case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32F_SHADOW:
case FORMAT_D32FS8_SHADOW:
*((float*)element) = r;
break;
case FORMAT_D32F_COMPLEMENTARY:
case FORMAT_D32FS8_COMPLEMENTARY:
*((float*)element) = 1 - r;
break;
case FORMAT_S8:
*((unsigned char*)element) = unorm<8>(r);
break;
case FORMAT_L8:
*(unsigned char*)element = unorm<8>(r);
break;
case FORMAT_A4L4:
*(unsigned char*)element = (unorm<4>(a) << 4) | (unorm<4>(r) << 0);
break;
case FORMAT_L16:
*(unsigned short*)element = unorm<16>(r);
break;
case FORMAT_A8L8:
*(unsigned short*)element = (unorm<8>(a) << 8) | (unorm<8>(r) << 0);
break;
case FORMAT_L16F:
*(half*)element = (half)r;
break;
case FORMAT_A16L16F:
((half*)element)[0] = (half)r;
((half*)element)[1] = (half)a;
break;
case FORMAT_L32F:
*(float*)element = r;
break;
case FORMAT_A32L32F:
((float*)element)[0] = r;
((float*)element)[1] = a;
break;
default:
ASSERT(false);
}
}
Color<float> Surface::Buffer::read(int x, int y, int z) const
{
ASSERT((x >= -border) && (x < (width + border)));
ASSERT((y >= -border) && (y < (height + border)));
ASSERT((z >= 0) && (z < depth));
void *element = (unsigned char*)buffer + (x + border) * bytes + (y + border) * pitchB + z * samples * sliceB;
return read(element);
}
Color<float> Surface::Buffer::read(int x, int y) const
{
ASSERT((x >= -border) && (x < (width + border)));
ASSERT((y >= -border) && (y < (height + border)));
void *element = (unsigned char*)buffer + (x + border) * bytes + (y + border) * pitchB;
return read(element);
}
inline Color<float> Surface::Buffer::read(void *element) const
{
float r = 0.0f;
float g = 0.0f;
float b = 0.0f;
float a = 1.0f;
switch(format)
{
case FORMAT_P8:
{
ASSERT(palette);
unsigned int abgr = palette[*(unsigned char*)element];
r = (abgr & 0x000000FF) * (1.0f / 0x000000FF);
g = (abgr & 0x0000FF00) * (1.0f / 0x0000FF00);
b = (abgr & 0x00FF0000) * (1.0f / 0x00FF0000);
a = (abgr & 0xFF000000) * (1.0f / 0xFF000000);
}
break;
case FORMAT_A8P8:
{
ASSERT(palette);
unsigned int bgr = palette[((unsigned char*)element)[0]];
r = (bgr & 0x000000FF) * (1.0f / 0x000000FF);
g = (bgr & 0x0000FF00) * (1.0f / 0x0000FF00);
b = (bgr & 0x00FF0000) * (1.0f / 0x00FF0000);
a = ((unsigned char*)element)[1] * (1.0f / 0xFF);
}
break;
case FORMAT_A8:
r = 0;
g = 0;
b = 0;
a = *(unsigned char*)element * (1.0f / 0xFF);
break;
case FORMAT_R8_SNORM:
r = max((*(signed char*)element) * (1.0f / 0x7F), -1.0f);
break;
case FORMAT_R8:
r = *(unsigned char*)element * (1.0f / 0xFF);
break;
case FORMAT_R8I:
r = *(signed char*)element;
break;
case FORMAT_R8UI:
r = *(unsigned char*)element;
break;
case FORMAT_R3G3B2:
{
unsigned char rgb = *(unsigned char*)element;
r = (rgb & 0xE0) * (1.0f / 0xE0);
g = (rgb & 0x1C) * (1.0f / 0x1C);
b = (rgb & 0x03) * (1.0f / 0x03);
}
break;
case FORMAT_A8R3G3B2:
{
unsigned short argb = *(unsigned short*)element;
a = (argb & 0xFF00) * (1.0f / 0xFF00);
r = (argb & 0x00E0) * (1.0f / 0x00E0);
g = (argb & 0x001C) * (1.0f / 0x001C);
b = (argb & 0x0003) * (1.0f / 0x0003);
}
break;
case FORMAT_X4R4G4B4:
{
unsigned short rgb = *(unsigned short*)element;
r = (rgb & 0x0F00) * (1.0f / 0x0F00);
g = (rgb & 0x00F0) * (1.0f / 0x00F0);
b = (rgb & 0x000F) * (1.0f / 0x000F);
}
break;
case FORMAT_A4R4G4B4:
{
unsigned short argb = *(unsigned short*)element;
a = (argb & 0xF000) * (1.0f / 0xF000);
r = (argb & 0x0F00) * (1.0f / 0x0F00);
g = (argb & 0x00F0) * (1.0f / 0x00F0);
b = (argb & 0x000F) * (1.0f / 0x000F);
}
break;
case FORMAT_R4G4B4A4:
{
unsigned short rgba = *(unsigned short*)element;
r = (rgba & 0xF000) * (1.0f / 0xF000);
g = (rgba & 0x0F00) * (1.0f / 0x0F00);
b = (rgba & 0x00F0) * (1.0f / 0x00F0);
a = (rgba & 0x000F) * (1.0f / 0x000F);
}
break;
case FORMAT_R5G6B5:
{
unsigned short rgb = *(unsigned short*)element;
r = (rgb & 0xF800) * (1.0f / 0xF800);
g = (rgb & 0x07E0) * (1.0f / 0x07E0);
b = (rgb & 0x001F) * (1.0f / 0x001F);
}
break;
case FORMAT_A1R5G5B5:
{
unsigned short argb = *(unsigned short*)element;
a = (argb & 0x8000) * (1.0f / 0x8000);
r = (argb & 0x7C00) * (1.0f / 0x7C00);
g = (argb & 0x03E0) * (1.0f / 0x03E0);
b = (argb & 0x001F) * (1.0f / 0x001F);
}
break;
case FORMAT_R5G5B5A1:
{
unsigned short rgba = *(unsigned short*)element;
r = (rgba & 0xF800) * (1.0f / 0xF800);
g = (rgba & 0x07C0) * (1.0f / 0x07C0);
b = (rgba & 0x003E) * (1.0f / 0x003E);
a = (rgba & 0x0001) * (1.0f / 0x0001);
}
break;
case FORMAT_X1R5G5B5:
{
unsigned short xrgb = *(unsigned short*)element;
r = (xrgb & 0x7C00) * (1.0f / 0x7C00);
g = (xrgb & 0x03E0) * (1.0f / 0x03E0);
b = (xrgb & 0x001F) * (1.0f / 0x001F);
}
break;
case FORMAT_A8R8G8B8:
{
unsigned int argb = *(unsigned int*)element;
a = (argb & 0xFF000000) * (1.0f / 0xFF000000);
r = (argb & 0x00FF0000) * (1.0f / 0x00FF0000);
g = (argb & 0x0000FF00) * (1.0f / 0x0000FF00);
b = (argb & 0x000000FF) * (1.0f / 0x000000FF);
}
break;
case FORMAT_X8R8G8B8:
{
unsigned int xrgb = *(unsigned int*)element;
r = (xrgb & 0x00FF0000) * (1.0f / 0x00FF0000);
g = (xrgb & 0x0000FF00) * (1.0f / 0x0000FF00);
b = (xrgb & 0x000000FF) * (1.0f / 0x000000FF);
}
break;
case FORMAT_A8B8G8R8_SNORM:
{
signed char* abgr = (signed char*)element;
r = max(abgr[0] * (1.0f / 0x7F), -1.0f);
g = max(abgr[1] * (1.0f / 0x7F), -1.0f);
b = max(abgr[2] * (1.0f / 0x7F), -1.0f);
a = max(abgr[3] * (1.0f / 0x7F), -1.0f);
}
break;
case FORMAT_A8B8G8R8:
case FORMAT_SRGB8_A8:
{
unsigned int abgr = *(unsigned int*)element;
a = (abgr & 0xFF000000) * (1.0f / 0xFF000000);
b = (abgr & 0x00FF0000) * (1.0f / 0x00FF0000);
g = (abgr & 0x0000FF00) * (1.0f / 0x0000FF00);
r = (abgr & 0x000000FF) * (1.0f / 0x000000FF);
}
break;
case FORMAT_A8B8G8R8I:
{
signed char* abgr = (signed char*)element;
r = abgr[0];
g = abgr[1];
b = abgr[2];
a = abgr[3];
}
break;
case FORMAT_A8B8G8R8UI:
{
unsigned char* abgr = (unsigned char*)element;
r = abgr[0];
g = abgr[1];
b = abgr[2];
a = abgr[3];
}
break;
case FORMAT_X8B8G8R8_SNORM:
{
signed char* bgr = (signed char*)element;
r = max(bgr[0] * (1.0f / 0x7F), -1.0f);
g = max(bgr[1] * (1.0f / 0x7F), -1.0f);
b = max(bgr[2] * (1.0f / 0x7F), -1.0f);
}
break;
case FORMAT_X8B8G8R8:
case FORMAT_SRGB8_X8:
{
unsigned int xbgr = *(unsigned int*)element;
b = (xbgr & 0x00FF0000) * (1.0f / 0x00FF0000);
g = (xbgr & 0x0000FF00) * (1.0f / 0x0000FF00);
r = (xbgr & 0x000000FF) * (1.0f / 0x000000FF);
}
break;
case FORMAT_X8B8G8R8I:
{
signed char* bgr = (signed char*)element;
r = bgr[0];
g = bgr[1];
b = bgr[2];
}
break;
case FORMAT_X8B8G8R8UI:
{
unsigned char* bgr = (unsigned char*)element;
r = bgr[0];
g = bgr[1];
b = bgr[2];
}
break;
case FORMAT_G8R8_SNORM:
{
signed char* gr = (signed char*)element;
r = (gr[0] & 0xFF00) * (1.0f / 0xFF00);
g = (gr[1] & 0x00FF) * (1.0f / 0x00FF);
}
break;
case FORMAT_G8R8:
{
unsigned short gr = *(unsigned short*)element;
g = (gr & 0xFF00) * (1.0f / 0xFF00);
r = (gr & 0x00FF) * (1.0f / 0x00FF);
}
break;
case FORMAT_G8R8I:
{
signed char* gr = (signed char*)element;
r = gr[0];
g = gr[1];
}
break;
case FORMAT_G8R8UI:
{
unsigned char* gr = (unsigned char*)element;
r = gr[0];
g = gr[1];
}
break;
case FORMAT_R16I:
r = *((short*)element);
break;
case FORMAT_R16UI:
r = *((unsigned short*)element);
break;
case FORMAT_G16R16I:
{
short* gr = (short*)element;
r = gr[0];
g = gr[1];
}
break;
case FORMAT_G16R16:
{
unsigned int gr = *(unsigned int*)element;
g = (gr & 0xFFFF0000) * (1.0f / 0xFFFF0000);
r = (gr & 0x0000FFFF) * (1.0f / 0x0000FFFF);
}
break;
case FORMAT_G16R16UI:
{
unsigned short* gr = (unsigned short*)element;
r = gr[0];
g = gr[1];
}
break;
case FORMAT_A2R10G10B10:
{
unsigned int argb = *(unsigned int*)element;
a = (argb & 0xC0000000) * (1.0f / 0xC0000000);
r = (argb & 0x3FF00000) * (1.0f / 0x3FF00000);
g = (argb & 0x000FFC00) * (1.0f / 0x000FFC00);
b = (argb & 0x000003FF) * (1.0f / 0x000003FF);
}
break;
case FORMAT_A2B10G10R10:
{
unsigned int abgr = *(unsigned int*)element;
a = (abgr & 0xC0000000) * (1.0f / 0xC0000000);
b = (abgr & 0x3FF00000) * (1.0f / 0x3FF00000);
g = (abgr & 0x000FFC00) * (1.0f / 0x000FFC00);
r = (abgr & 0x000003FF) * (1.0f / 0x000003FF);
}
break;
case FORMAT_A2B10G10R10UI:
{
unsigned int abgr = *(unsigned int*)element;
a = static_cast<float>((abgr & 0xC0000000) >> 30);
b = static_cast<float>((abgr & 0x3FF00000) >> 20);
g = static_cast<float>((abgr & 0x000FFC00) >> 10);
r = static_cast<float>(abgr & 0x000003FF);
}
break;
case FORMAT_A16B16G16R16I:
{
short* abgr = (short*)element;
r = abgr[0];
g = abgr[1];
b = abgr[2];
a = abgr[3];
}
break;
case FORMAT_A16B16G16R16:
r = ((unsigned short*)element)[0] * (1.0f / 0xFFFF);
g = ((unsigned short*)element)[1] * (1.0f / 0xFFFF);
b = ((unsigned short*)element)[2] * (1.0f / 0xFFFF);
a = ((unsigned short*)element)[3] * (1.0f / 0xFFFF);
break;
case FORMAT_A16B16G16R16UI:
{
unsigned short* abgr = (unsigned short*)element;
r = abgr[0];
g = abgr[1];
b = abgr[2];
a = abgr[3];
}
break;
case FORMAT_X16B16G16R16I:
{
short* bgr = (short*)element;
r = bgr[0];
g = bgr[1];
b = bgr[2];
}
break;
case FORMAT_X16B16G16R16UI:
{
unsigned short* bgr = (unsigned short*)element;
r = bgr[0];
g = bgr[1];
b = bgr[2];
}
break;
case FORMAT_A32B32G32R32I:
{
int* abgr = (int*)element;
r = static_cast<float>(abgr[0]);
g = static_cast<float>(abgr[1]);
b = static_cast<float>(abgr[2]);
a = static_cast<float>(abgr[3]);
}
break;
case FORMAT_A32B32G32R32UI:
{
unsigned int* abgr = (unsigned int*)element;
r = static_cast<float>(abgr[0]);
g = static_cast<float>(abgr[1]);
b = static_cast<float>(abgr[2]);
a = static_cast<float>(abgr[3]);
}
break;
case FORMAT_X32B32G32R32I:
{
int* bgr = (int*)element;
r = static_cast<float>(bgr[0]);
g = static_cast<float>(bgr[1]);
b = static_cast<float>(bgr[2]);
}
break;
case FORMAT_X32B32G32R32UI:
{
unsigned int* bgr = (unsigned int*)element;
r = static_cast<float>(bgr[0]);
g = static_cast<float>(bgr[1]);
b = static_cast<float>(bgr[2]);
}
break;
case FORMAT_G32R32I:
{
int* gr = (int*)element;
r = static_cast<float>(gr[0]);
g = static_cast<float>(gr[1]);
}
break;
case FORMAT_G32R32UI:
{
unsigned int* gr = (unsigned int*)element;
r = static_cast<float>(gr[0]);
g = static_cast<float>(gr[1]);
}
break;
case FORMAT_R32I:
r = static_cast<float>(*((int*)element));
break;
case FORMAT_R32UI:
r = static_cast<float>(*((unsigned int*)element));
break;
case FORMAT_V8U8:
{
unsigned short vu = *(unsigned short*)element;
r = ((int)(vu & 0x00FF) << 24) * (1.0f / 0x7F000000);
g = ((int)(vu & 0xFF00) << 16) * (1.0f / 0x7F000000);
}
break;
case FORMAT_L6V5U5:
{
unsigned short lvu = *(unsigned short*)element;
r = ((int)(lvu & 0x001F) << 27) * (1.0f / 0x78000000);
g = ((int)(lvu & 0x03E0) << 22) * (1.0f / 0x78000000);
b = (lvu & 0xFC00) * (1.0f / 0xFC00);
}
break;
case FORMAT_Q8W8V8U8:
{
unsigned int qwvu = *(unsigned int*)element;
r = ((int)(qwvu & 0x000000FF) << 24) * (1.0f / 0x7F000000);
g = ((int)(qwvu & 0x0000FF00) << 16) * (1.0f / 0x7F000000);
b = ((int)(qwvu & 0x00FF0000) << 8) * (1.0f / 0x7F000000);
a = ((int)(qwvu & 0xFF000000) << 0) * (1.0f / 0x7F000000);
}
break;
case FORMAT_X8L8V8U8:
{
unsigned int xlvu = *(unsigned int*)element;
r = ((int)(xlvu & 0x000000FF) << 24) * (1.0f / 0x7F000000);
g = ((int)(xlvu & 0x0000FF00) << 16) * (1.0f / 0x7F000000);
b = (xlvu & 0x00FF0000) * (1.0f / 0x00FF0000);
}
break;
case FORMAT_R8G8B8:
r = ((unsigned char*)element)[2] * (1.0f / 0xFF);
g = ((unsigned char*)element)[1] * (1.0f / 0xFF);
b = ((unsigned char*)element)[0] * (1.0f / 0xFF);
break;
case FORMAT_B8G8R8:
r = ((unsigned char*)element)[0] * (1.0f / 0xFF);
g = ((unsigned char*)element)[1] * (1.0f / 0xFF);
b = ((unsigned char*)element)[2] * (1.0f / 0xFF);
break;
case FORMAT_V16U16:
{
unsigned int vu = *(unsigned int*)element;
r = ((int)(vu & 0x0000FFFF) << 16) * (1.0f / 0x7FFF0000);
g = ((int)(vu & 0xFFFF0000) << 0) * (1.0f / 0x7FFF0000);
}
break;
case FORMAT_A2W10V10U10:
{
unsigned int awvu = *(unsigned int*)element;
r = ((int)(awvu & 0x000003FF) << 22) * (1.0f / 0x7FC00000);
g = ((int)(awvu & 0x000FFC00) << 12) * (1.0f / 0x7FC00000);
b = ((int)(awvu & 0x3FF00000) << 2) * (1.0f / 0x7FC00000);
a = (awvu & 0xC0000000) * (1.0f / 0xC0000000);
}
break;
case FORMAT_A16W16V16U16:
r = ((signed short*)element)[0] * (1.0f / 0x7FFF);
g = ((signed short*)element)[1] * (1.0f / 0x7FFF);
b = ((signed short*)element)[2] * (1.0f / 0x7FFF);
a = ((unsigned short*)element)[3] * (1.0f / 0xFFFF);
break;
case FORMAT_Q16W16V16U16:
r = ((signed short*)element)[0] * (1.0f / 0x7FFF);
g = ((signed short*)element)[1] * (1.0f / 0x7FFF);
b = ((signed short*)element)[2] * (1.0f / 0x7FFF);
a = ((signed short*)element)[3] * (1.0f / 0x7FFF);
break;
case FORMAT_L8:
r =
g =
b = *(unsigned char*)element * (1.0f / 0xFF);
break;
case FORMAT_A4L4:
{
unsigned char al = *(unsigned char*)element;
r =
g =
b = (al & 0x0F) * (1.0f / 0x0F);
a = (al & 0xF0) * (1.0f / 0xF0);
}
break;
case FORMAT_L16:
r =
g =
b = *(unsigned short*)element * (1.0f / 0xFFFF);
break;
case FORMAT_A8L8:
r =
g =
b = ((unsigned char*)element)[0] * (1.0f / 0xFF);
a = ((unsigned char*)element)[1] * (1.0f / 0xFF);
break;
case FORMAT_L16F:
r =
g =
b = *(half*)element;
break;
case FORMAT_A16L16F:
r =
g =
b = ((half*)element)[0];
a = ((half*)element)[1];
break;
case FORMAT_L32F:
r =
g =
b = *(float*)element;
break;
case FORMAT_A32L32F:
r =
g =
b = ((float*)element)[0];
a = ((float*)element)[1];
break;
case FORMAT_A16F:
a = *(half*)element;
break;
case FORMAT_R16F:
r = *(half*)element;
break;
case FORMAT_G16R16F:
r = ((half*)element)[0];
g = ((half*)element)[1];
break;
case FORMAT_X16B16G16R16F:
case FORMAT_X16B16G16R16F_UNSIGNED:
case FORMAT_B16G16R16F:
r = ((half*)element)[0];
g = ((half*)element)[1];
b = ((half*)element)[2];
break;
case FORMAT_A16B16G16R16F:
r = ((half*)element)[0];
g = ((half*)element)[1];
b = ((half*)element)[2];
a = ((half*)element)[3];