loadimage_etc.cpp | Explore in Territory

//
// 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.
//

// loadimage_etc.cpp: Decodes ETC and EAC encoded textures.

#include "image_util/loadimage.h"

#include <type_traits>
#include "common/mathutil.h"

#include "image_util/imageformats.h"

namespace angle
{
namespace
{

IntensityModifier;

// Table 3.17.2 sorted according to table 3.17.3
// clang-format off
static IntensityModifier intensityModifierDefault[] = …;
// clang-format on

// Table C.12, intensity modifier for non opaque punchthrough alpha
// clang-format off
static IntensityModifier intensityModifierNonOpaque[] = …;
// clang-format on

static const int kNumPixelsInBlock = …;

struct ETC2Block
{ … };

// clang-format off
static const uint8_t DefaultETCAlphaValues[4][4] = …;

// clang-format on
void LoadR11EACToR8(const ImageLoadContext &context,
                    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,
                    bool isSigned)
{ … }

void LoadRG11EACToRG8(const ImageLoadContext &context,
                      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,
                      bool isSigned)
{ … }

void LoadR11EACToR16(const ImageLoadContext &context,
                     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,
                     bool isSigned,
                     bool isFloat)
{ … }

void LoadRG11EACToRG16(const ImageLoadContext &context,
                       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,
                       bool isSigned,
                       bool isFloat)
{ … }

void LoadETC2RGB8ToRGBA8(const ImageLoadContext &context,
                         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,
                         bool punchthroughAlpha)
{ … }

void LoadETC2RGB8ToBC1(const ImageLoadContext &context,
                       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,
                       bool punchthroughAlpha)
{ … }

void LoadETC2RGBA8ToBC3(const ImageLoadContext &context,
                        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,
                        bool punchthroughAlpha,
                        bool isSigned)
{ … }

void LoadETC2RGBA8ToRGBA8(const ImageLoadContext &context,
                          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,
                          bool srgb)
{ … }

}  // anonymous namespace

void LoadETC1RGB8ToRGBA8(const ImageLoadContext &context,
                         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)
{ … }

void LoadETC1RGB8ToBC1(const ImageLoadContext &context,
                       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)
{ … }

void LoadEACR11ToR8(const ImageLoadContext &context,
                    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)
{ … }

void LoadEACR11SToR8(const ImageLoadContext &context,
                     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)
{ … }

void LoadEACRG11ToRG8(const ImageLoadContext &context,
                      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)
{ … }

void LoadEACRG11SToRG8(const ImageLoadContext &context,
                       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)
{ … }

void LoadEACR11ToR16(const ImageLoadContext &context,
                     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)
{ … }

void LoadEACR11SToR16(const ImageLoadContext &context,
                      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)
{ … }

void LoadEACRG11ToRG16(const ImageLoadContext &context,
                       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)
{ … }

void LoadEACRG11SToRG16(const ImageLoadContext &context,
                        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)
{ … }

void LoadEACR11ToR16F(const ImageLoadContext &context,
                      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)
{ … }

void LoadEACR11SToR16F(const ImageLoadContext &context,
                       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)
{ … }

void LoadEACRG11ToRG16F(const ImageLoadContext &context,
                        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)
{ … }

void LoadEACRG11SToRG16F(const ImageLoadContext &context,
                         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)
{ … }

void LoadETC2RGB8ToRGBA8(const ImageLoadContext &context,
                         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)
{ … }

void LoadETC2RGB8ToBC1(const ImageLoadContext &context,
                       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)
{ … }

void LoadETC2SRGB8ToRGBA8(const ImageLoadContext &context,
                          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)
{ … }

void LoadETC2SRGB8ToBC1(const ImageLoadContext &context,
                        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)
{ … }

void LoadETC2RGB8A1ToRGBA8(const ImageLoadContext &context,
                           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)
{ … }

void LoadETC2RGB8A1ToBC1(const ImageLoadContext &context,
                         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)
{ … }

void LoadETC2SRGB8A1ToRGBA8(const ImageLoadContext &context,
                            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)
{ … }

void LoadETC2SRGB8A1ToBC1(const ImageLoadContext &context,
                          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)
{ … }

void LoadETC2RGBA8ToRGBA8(const ImageLoadContext &context,
                          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)
{ … }

void LoadETC2SRGBA8ToSRGBA8(const ImageLoadContext &context,
                            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)
{ … }

void LoadETC2RGBA8ToBC3(const ImageLoadContext &context,
                        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)
{ … }

void LoadETC2SRGBA8ToBC3(const ImageLoadContext &context,
                         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)
{ … }

void LoadEACR11ToBC4(const ImageLoadContext &context,
                     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,
                     bool isSigned)
{ … }

void LoadEACRG11ToBC5(const ImageLoadContext &context,
                      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,
                      bool isSigned)
{ … }

void LoadEACR11ToBC4(const ImageLoadContext &context,
                     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)
{ … }

void LoadEACR11SToBC4(const ImageLoadContext &context,
                      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)
{ … }

void LoadEACRG11ToBC5(const ImageLoadContext &context,
                      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)
{ … }

void LoadEACRG11SToBC5(const ImageLoadContext &context,
                       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)
{ … }

}  // namespace angle
chromium/third_party/angle/src/image_util/loadimage_etc.cpp
