diff options
Diffstat (limited to 'gfx/angle/src/image_util/imageformats.h')
| -rwxr-xr-x | gfx/angle/src/image_util/imageformats.h | 688 |
1 files changed, 688 insertions, 0 deletions
diff --git a/gfx/angle/src/image_util/imageformats.h b/gfx/angle/src/image_util/imageformats.h new file mode 100755 index 000000000..b4ff04482 --- /dev/null +++ b/gfx/angle/src/image_util/imageformats.h @@ -0,0 +1,688 @@ +// +// Copyright (c) 2013-2015 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. +// + +// imageformats.h: Defines image format types with functions for mip generation +// and copying. + +#ifndef IMAGEUTIL_IMAGEFORMATS_H_ +#define IMAGEUTIL_IMAGEFORMATS_H_ + +#include "common/Color.h" + +#include <cstdint> + +namespace angle +{ + +// Several structures share functionality for reading, writing or mipmapping but the layout +// must match the texture format which the structure represents. If collapsing or typedefing +// structs in this header, make sure the functionality and memory layout is exactly the same. + +struct L8 +{ + uint8_t L; + + static void readColor(gl::ColorF *dst, const L8 *src); + static void writeColor(L8 *dst, const gl::ColorF *src); + static void average(L8 *dst, const L8 *src1, const L8 *src2); +}; + +struct R8 +{ + uint8_t R; + + static void readColor(gl::ColorF *dst, const R8 *src); + static void readColor(gl::ColorUI *dst, const R8 *src); + static void writeColor(R8 *dst, const gl::ColorF *src); + static void writeColor(R8 *dst, const gl::ColorUI *src); + static void average(R8 *dst, const R8 *src1, const R8 *src2); +}; + +struct A8 +{ + uint8_t A; + + static void readColor(gl::ColorF *dst, const A8 *src); + static void writeColor(A8 *dst, const gl::ColorF *src); + static void average(A8 *dst, const A8 *src1, const A8 *src2); +}; + +struct L8A8 +{ + uint8_t L; + uint8_t A; + + static void readColor(gl::ColorF *dst, const L8A8 *src); + static void writeColor(L8A8 *dst, const gl::ColorF *src); + static void average(L8A8 *dst, const L8A8 *src1, const L8A8 *src2); +}; + +struct A8L8 +{ + uint8_t A; + uint8_t L; + + static void readColor(gl::ColorF *dst, const A8L8 *src); + static void writeColor(A8L8 *dst, const gl::ColorF *src); + static void average(A8L8 *dst, const A8L8 *src1, const A8L8 *src2); +}; + +struct R8G8 +{ + uint8_t R; + uint8_t G; + + static void readColor(gl::ColorF *dst, const R8G8 *src); + static void readColor(gl::ColorUI *dst, const R8G8 *src); + static void writeColor(R8G8 *dst, const gl::ColorF *src); + static void writeColor(R8G8 *dst, const gl::ColorUI *src); + static void average(R8G8 *dst, const R8G8 *src1, const R8G8 *src2); +}; + +struct R8G8B8 +{ + uint8_t R; + uint8_t G; + uint8_t B; + + static void readColor(gl::ColorF *dst, const R8G8B8 *src); + static void readColor(gl::ColorUI *dst, const R8G8B8 *src); + static void writeColor(R8G8B8 *dst, const gl::ColorF *src); + static void writeColor(R8G8B8 *dst, const gl::ColorUI *src); + static void average(R8G8B8 *dst, const R8G8B8 *src1, const R8G8B8 *src2); +}; + +struct B8G8R8 +{ + uint8_t B; + uint8_t G; + uint8_t R; + + static void readColor(gl::ColorF *dst, const B8G8R8 *src); + static void readColor(gl::ColorUI *dst, const B8G8R8 *src); + static void writeColor(B8G8R8 *dst, const gl::ColorF *src); + static void writeColor(B8G8R8 *dst, const gl::ColorUI *src); + static void average(B8G8R8 *dst, const B8G8R8 *src1, const B8G8R8 *src2); +}; + +struct R5G6B5 +{ + // OpenGL ES 2.0.25 spec Section 3.6.2: "Components are packed with the first component in the + // most significant bits of the bitfield, and successive component occupying progressively less + // significant locations" + uint16_t RGB; + + static void readColor(gl::ColorF *dst, const R5G6B5 *src); + static void writeColor(R5G6B5 *dst, const gl::ColorF *src); + static void average(R5G6B5 *dst, const R5G6B5 *src1, const R5G6B5 *src2); +}; + +struct B5G6R5 +{ + uint16_t BGR; + + static void readColor(gl::ColorF *dst, const B5G6R5 *src); + static void writeColor(B5G6R5 *dst, const gl::ColorF *src); + static void average(B5G6R5 *dst, const B5G6R5 *src1, const B5G6R5 *src2); +}; + +struct A8R8G8B8 +{ + uint8_t A; + uint8_t R; + uint8_t G; + uint8_t B; + + static void readColor(gl::ColorF *dst, const A8R8G8B8 *src); + static void readColor(gl::ColorUI *dst, const A8R8G8B8 *src); + static void writeColor(A8R8G8B8 *dst, const gl::ColorF *src); + static void writeColor(A8R8G8B8 *dst, const gl::ColorUI *src); + static void average(A8R8G8B8 *dst, const A8R8G8B8 *src1, const A8R8G8B8 *src2); +}; + +struct R8G8B8A8 +{ + uint8_t R; + uint8_t G; + uint8_t B; + uint8_t A; + + static void readColor(gl::ColorF *dst, const R8G8B8A8 *src); + static void readColor(gl::ColorUI *dst, const R8G8B8A8 *src); + static void writeColor(R8G8B8A8 *dst, const gl::ColorF *src); + static void writeColor(R8G8B8A8 *dst, const gl::ColorUI *src); + static void average(R8G8B8A8 *dst, const R8G8B8A8 *src1, const R8G8B8A8 *src2); +}; + +struct B8G8R8A8 +{ + uint8_t B; + uint8_t G; + uint8_t R; + uint8_t A; + + static void readColor(gl::ColorF *dst, const B8G8R8A8 *src); + static void readColor(gl::ColorUI *dst, const B8G8R8A8 *src); + static void writeColor(B8G8R8A8 *dst, const gl::ColorF *src); + static void writeColor(B8G8R8A8 *dst, const gl::ColorUI *src); + static void average(B8G8R8A8 *dst, const B8G8R8A8 *src1, const B8G8R8A8 *src2); +}; + +struct B8G8R8X8 +{ + uint8_t B; + uint8_t G; + uint8_t R; + uint8_t X; + + static void readColor(gl::ColorF *dst, const B8G8R8X8 *src); + static void readColor(gl::ColorUI *dst, const B8G8R8X8 *src); + static void writeColor(B8G8R8X8 *dst, const gl::ColorF *src); + static void writeColor(B8G8R8X8 *dst, const gl::ColorUI *src); + static void average(B8G8R8X8 *dst, const B8G8R8X8 *src1, const B8G8R8X8 *src2); +}; + +struct A1R5G5B5 +{ + uint16_t ARGB; + + static void readColor(gl::ColorF *dst, const A1R5G5B5 *src); + static void writeColor(A1R5G5B5 *dst, const gl::ColorF *src); + static void average(A1R5G5B5 *dst, const A1R5G5B5 *src1, const A1R5G5B5 *src2); +}; + +struct R5G5B5A1 +{ + // OpenGL ES 2.0.25 spec Section 3.6.2: "Components are packed with the first component in the + // most significant + // bits of the bitfield, and successive component occupying progressively less significant + // locations" + uint16_t RGBA; + + static void readColor(gl::ColorF *dst, const R5G5B5A1 *src); + static void writeColor(R5G5B5A1 *dst, const gl::ColorF *src); + static void average(R5G5B5A1 *dst, const R5G5B5A1 *src1, const R5G5B5A1 *src2); +}; + +struct R4G4B4A4 +{ + // OpenGL ES 2.0.25 spec Section 3.6.2: "Components are packed with the first component in the + // most significant + // bits of the bitfield, and successive component occupying progressively less significant + // locations" + uint16_t RGBA; + + static void readColor(gl::ColorF *dst, const R4G4B4A4 *src); + static void writeColor(R4G4B4A4 *dst, const gl::ColorF *src); + static void average(R4G4B4A4 *dst, const R4G4B4A4 *src1, const R4G4B4A4 *src2); +}; + +struct A4R4G4B4 +{ + uint16_t ARGB; + + static void readColor(gl::ColorF *dst, const A4R4G4B4 *src); + static void writeColor(A4R4G4B4 *dst, const gl::ColorF *src); + static void average(A4R4G4B4 *dst, const A4R4G4B4 *src1, const A4R4G4B4 *src2); +}; + +struct R16 +{ + uint16_t R; + + static void readColor(gl::ColorF *dst, const R16 *src); + static void readColor(gl::ColorUI *dst, const R16 *src); + static void writeColor(R16 *dst, const gl::ColorF *src); + static void writeColor(R16 *dst, const gl::ColorUI *src); + static void average(R16 *dst, const R16 *src1, const R16 *src2); +}; + +struct R16G16 +{ + uint16_t R; + uint16_t G; + + static void readColor(gl::ColorF *dst, const R16G16 *src); + static void readColor(gl::ColorUI *dst, const R16G16 *src); + static void writeColor(R16G16 *dst, const gl::ColorF *src); + static void writeColor(R16G16 *dst, const gl::ColorUI *src); + static void average(R16G16 *dst, const R16G16 *src1, const R16G16 *src2); +}; + +struct R16G16B16 +{ + uint16_t R; + uint16_t G; + uint16_t B; + + static void readColor(gl::ColorF *dst, const R16G16B16 *src); + static void readColor(gl::ColorUI *dst, const R16G16B16 *src); + static void writeColor(R16G16B16 *dst, const gl::ColorF *src); + static void writeColor(R16G16B16 *dst, const gl::ColorUI *src); + static void average(R16G16B16 *dst, const R16G16B16 *src1, const R16G16B16 *src2); +}; + +struct R16G16B16A16 +{ + uint16_t R; + uint16_t G; + uint16_t B; + uint16_t A; + + static void readColor(gl::ColorF *dst, const R16G16B16A16 *src); + static void readColor(gl::ColorUI *dst, const R16G16B16A16 *src); + static void writeColor(R16G16B16A16 *dst, const gl::ColorF *src); + static void writeColor(R16G16B16A16 *dst, const gl::ColorUI *src); + static void average(R16G16B16A16 *dst, const R16G16B16A16 *src1, const R16G16B16A16 *src2); +}; + +struct R32 +{ + uint32_t R; + + static void readColor(gl::ColorF *dst, const R32 *src); + static void readColor(gl::ColorUI *dst, const R32 *src); + static void writeColor(R32 *dst, const gl::ColorF *src); + static void writeColor(R32 *dst, const gl::ColorUI *src); + static void average(R32 *dst, const R32 *src1, const R32 *src2); +}; + +struct R32G32 +{ + uint32_t R; + uint32_t G; + + static void readColor(gl::ColorF *dst, const R32G32 *src); + static void readColor(gl::ColorUI *dst, const R32G32 *src); + static void writeColor(R32G32 *dst, const gl::ColorF *src); + static void writeColor(R32G32 *dst, const gl::ColorUI *src); + static void average(R32G32 *dst, const R32G32 *src1, const R32G32 *src2); +}; + +struct R32G32B32 +{ + uint32_t R; + uint32_t G; + uint32_t B; + + static void readColor(gl::ColorF *dst, const R32G32B32 *src); + static void readColor(gl::ColorUI *dst, const R32G32B32 *src); + static void writeColor(R32G32B32 *dst, const gl::ColorF *src); + static void writeColor(R32G32B32 *dst, const gl::ColorUI *src); + static void average(R32G32B32 *dst, const R32G32B32 *src1, const R32G32B32 *src2); +}; + +struct R32G32B32A32 +{ + uint32_t R; + uint32_t G; + uint32_t B; + uint32_t A; + + static void readColor(gl::ColorF *dst, const R32G32B32A32 *src); + static void readColor(gl::ColorUI *dst, const R32G32B32A32 *src); + static void writeColor(R32G32B32A32 *dst, const gl::ColorF *src); + static void writeColor(R32G32B32A32 *dst, const gl::ColorUI *src); + static void average(R32G32B32A32 *dst, const R32G32B32A32 *src1, const R32G32B32A32 *src2); +}; + +struct R8S +{ + int8_t R; + + static void readColor(gl::ColorF *dst, const R8S *src); + static void readColor(gl::ColorI *dst, const R8S *src); + static void writeColor(R8S *dst, const gl::ColorF *src); + static void writeColor(R8S *dst, const gl::ColorI *src); + static void average(R8S *dst, const R8S *src1, const R8S *src2); +}; + +struct R8G8S +{ + int8_t R; + int8_t G; + + static void readColor(gl::ColorF *dst, const R8G8S *src); + static void readColor(gl::ColorI *dst, const R8G8S *src); + static void writeColor(R8G8S *dst, const gl::ColorF *src); + static void writeColor(R8G8S *dst, const gl::ColorI *src); + static void average(R8G8S *dst, const R8G8S *src1, const R8G8S *src2); +}; + +struct R8G8B8S +{ + int8_t R; + int8_t G; + int8_t B; + + static void readColor(gl::ColorF *dst, const R8G8B8S *src); + static void readColor(gl::ColorI *dst, const R8G8B8S *src); + static void writeColor(R8G8B8S *dst, const gl::ColorF *src); + static void writeColor(R8G8B8S *dst, const gl::ColorI *src); + static void average(R8G8B8S *dst, const R8G8B8S *src1, const R8G8B8S *src2); +}; + +struct R8G8B8A8S +{ + int8_t R; + int8_t G; + int8_t B; + int8_t A; + + static void readColor(gl::ColorF *dst, const R8G8B8A8S *src); + static void readColor(gl::ColorI *dst, const R8G8B8A8S *src); + static void writeColor(R8G8B8A8S *dst, const gl::ColorF *src); + static void writeColor(R8G8B8A8S *dst, const gl::ColorI *src); + static void average(R8G8B8A8S *dst, const R8G8B8A8S *src1, const R8G8B8A8S *src2); +}; + +struct R16S +{ + int16_t R; + + static void readColor(gl::ColorF *dst, const R16S *src); + static void readColor(gl::ColorI *dst, const R16S *src); + static void writeColor(R16S *dst, const gl::ColorF *src); + static void writeColor(R16S *dst, const gl::ColorI *src); + static void average(R16S *dst, const R16S *src1, const R16S *src2); +}; + +struct R16G16S +{ + int16_t R; + int16_t G; + + static void readColor(gl::ColorF *dst, const R16G16S *src); + static void readColor(gl::ColorI *dst, const R16G16S *src); + static void writeColor(R16G16S *dst, const gl::ColorF *src); + static void writeColor(R16G16S *dst, const gl::ColorI *src); + static void average(R16G16S *dst, const R16G16S *src1, const R16G16S *src2); +}; + +struct R16G16B16S +{ + int16_t R; + int16_t G; + int16_t B; + + static void readColor(gl::ColorF *dst, const R16G16B16S *src); + static void readColor(gl::ColorI *dst, const R16G16B16S *src); + static void writeColor(R16G16B16S *dst, const gl::ColorF *src); + static void writeColor(R16G16B16S *dst, const gl::ColorI *src); + static void average(R16G16B16S *dst, const R16G16B16S *src1, const R16G16B16S *src2); +}; + +struct R16G16B16A16S +{ + int16_t R; + int16_t G; + int16_t B; + int16_t A; + + static void readColor(gl::ColorF *dst, const R16G16B16A16S *src); + static void readColor(gl::ColorI *dst, const R16G16B16A16S *src); + static void writeColor(R16G16B16A16S *dst, const gl::ColorF *src); + static void writeColor(R16G16B16A16S *dst, const gl::ColorI *src); + static void average(R16G16B16A16S *dst, const R16G16B16A16S *src1, const R16G16B16A16S *src2); +}; + +struct R32S +{ + int32_t R; + + static void readColor(gl::ColorF *dst, const R32S *src); + static void readColor(gl::ColorI *dst, const R32S *src); + static void writeColor(R32S *dst, const gl::ColorF *src); + static void writeColor(R32S *dst, const gl::ColorI *src); + static void average(R32S *dst, const R32S *src1, const R32S *src2); +}; + +struct R32G32S +{ + int32_t R; + int32_t G; + + static void readColor(gl::ColorF *dst, const R32G32S *src); + static void readColor(gl::ColorI *dst, const R32G32S *src); + static void writeColor(R32G32S *dst, const gl::ColorF *src); + static void writeColor(R32G32S *dst, const gl::ColorI *src); + static void average(R32G32S *dst, const R32G32S *src1, const R32G32S *src2); +}; + +struct R32G32B32S +{ + int32_t R; + int32_t G; + int32_t B; + + static void readColor(gl::ColorF *dst, const R32G32B32S *src); + static void readColor(gl::ColorI *dst, const R32G32B32S *src); + static void writeColor(R32G32B32S *dst, const gl::ColorF *src); + static void writeColor(R32G32B32S *dst, const gl::ColorI *src); + static void average(R32G32B32S *dst, const R32G32B32S *src1, const R32G32B32S *src2); +}; + +struct R32G32B32A32S +{ + int32_t R; + int32_t G; + int32_t B; + int32_t A; + + static void readColor(gl::ColorF *dst, const R32G32B32A32S *src); + static void readColor(gl::ColorI *dst, const R32G32B32A32S *src); + static void writeColor(R32G32B32A32S *dst, const gl::ColorF *src); + static void writeColor(R32G32B32A32S *dst, const gl::ColorI *src); + static void average(R32G32B32A32S *dst, const R32G32B32A32S *src1, const R32G32B32A32S *src2); +}; + +struct A16B16G16R16F +{ + uint16_t A; + uint16_t R; + uint16_t G; + uint16_t B; + + static void readColor(gl::ColorF *dst, const A16B16G16R16F *src); + static void writeColor(A16B16G16R16F *dst, const gl::ColorF *src); + static void average(A16B16G16R16F *dst, const A16B16G16R16F *src1, const A16B16G16R16F *src2); +}; + +struct R16G16B16A16F +{ + uint16_t R; + uint16_t G; + uint16_t B; + uint16_t A; + + static void readColor(gl::ColorF *dst, const R16G16B16A16F *src); + static void writeColor(R16G16B16A16F *dst, const gl::ColorF *src); + static void average(R16G16B16A16F *dst, const R16G16B16A16F *src1, const R16G16B16A16F *src2); +}; + +struct R16F +{ + uint16_t R; + + static void readColor(gl::ColorF *dst, const R16F *src); + static void writeColor(R16F *dst, const gl::ColorF *src); + static void average(R16F *dst, const R16F *src1, const R16F *src2); +}; + +struct A16F +{ + uint16_t A; + + static void readColor(gl::ColorF *dst, const A16F *src); + static void writeColor(A16F *dst, const gl::ColorF *src); + static void average(A16F *dst, const A16F *src1, const A16F *src2); +}; + +struct L16F +{ + uint16_t L; + + static void readColor(gl::ColorF *dst, const L16F *src); + static void writeColor(L16F *dst, const gl::ColorF *src); + static void average(L16F *dst, const L16F *src1, const L16F *src2); +}; + +struct L16A16F +{ + uint16_t L; + uint16_t A; + + static void readColor(gl::ColorF *dst, const L16A16F *src); + static void writeColor(L16A16F *dst, const gl::ColorF *src); + static void average(L16A16F *dst, const L16A16F *src1, const L16A16F *src2); +}; + +struct R16G16F +{ + uint16_t R; + uint16_t G; + + static void readColor(gl::ColorF *dst, const R16G16F *src); + static void writeColor(R16G16F *dst, const gl::ColorF *src); + static void average(R16G16F *dst, const R16G16F *src1, const R16G16F *src2); +}; + +struct R16G16B16F +{ + uint16_t R; + uint16_t G; + uint16_t B; + + static void readColor(gl::ColorF *dst, const R16G16B16F *src); + static void writeColor(R16G16B16F *dst, const gl::ColorF *src); + static void average(R16G16B16F *dst, const R16G16B16F *src1, const R16G16B16F *src2); +}; + +struct A32B32G32R32F +{ + float A; + float R; + float G; + float B; + + static void readColor(gl::ColorF *dst, const A32B32G32R32F *src); + static void writeColor(A32B32G32R32F *dst, const gl::ColorF *src); + static void average(A32B32G32R32F *dst, const A32B32G32R32F *src1, const A32B32G32R32F *src2); +}; + +struct R32G32B32A32F +{ + float R; + float G; + float B; + float A; + + static void readColor(gl::ColorF *dst, const R32G32B32A32F *src); + static void writeColor(R32G32B32A32F *dst, const gl::ColorF *src); + static void average(R32G32B32A32F *dst, const R32G32B32A32F *src1, const R32G32B32A32F *src2); +}; + +struct R32F +{ + float R; + + static void readColor(gl::ColorF *dst, const R32F *src); + static void writeColor(R32F *dst, const gl::ColorF *src); + static void average(R32F *dst, const R32F *src1, const R32F *src2); +}; + +struct A32F +{ + float A; + + static void readColor(gl::ColorF *dst, const A32F *src); + static void writeColor(A32F *dst, const gl::ColorF *src); + static void average(A32F *dst, const A32F *src1, const A32F *src2); +}; + +struct L32F +{ + float L; + + static void readColor(gl::ColorF *dst, const L32F *src); + static void writeColor(L32F *dst, const gl::ColorF *src); + static void average(L32F *dst, const L32F *src1, const L32F *src2); +}; + +struct L32A32F +{ + float L; + float A; + + static void readColor(gl::ColorF *dst, const L32A32F *src); + static void writeColor(L32A32F *dst, const gl::ColorF *src); + static void average(L32A32F *dst, const L32A32F *src1, const L32A32F *src2); +}; + +struct R32G32F +{ + float R; + float G; + + static void readColor(gl::ColorF *dst, const R32G32F *src); + static void writeColor(R32G32F *dst, const gl::ColorF *src); + static void average(R32G32F *dst, const R32G32F *src1, const R32G32F *src2); +}; + +struct R32G32B32F +{ + float R; + float G; + float B; + + static void readColor(gl::ColorF *dst, const R32G32B32F *src); + static void writeColor(R32G32B32F *dst, const gl::ColorF *src); + static void average(R32G32B32F *dst, const R32G32B32F *src1, const R32G32B32F *src2); +}; + +struct R10G10B10A2 +{ + uint32_t R : 10; + uint32_t G : 10; + uint32_t B : 10; + uint32_t A : 2; + + static void readColor(gl::ColorF *dst, const R10G10B10A2 *src); + static void readColor(gl::ColorUI *dst, const R10G10B10A2 *src); + static void writeColor(R10G10B10A2 *dst, const gl::ColorF *src); + static void writeColor(R10G10B10A2 *dst, const gl::ColorUI *src); + static void average(R10G10B10A2 *dst, const R10G10B10A2 *src1, const R10G10B10A2 *src2); +}; +static_assert(sizeof(R10G10B10A2) == 4, "R10G10B10A2 struct not 32-bits."); + +struct R9G9B9E5 +{ + uint32_t R : 9; + uint32_t G : 9; + uint32_t B : 9; + uint32_t E : 5; + + static void readColor(gl::ColorF *dst, const R9G9B9E5 *src); + static void writeColor(R9G9B9E5 *dst, const gl::ColorF *src); + static void average(R9G9B9E5 *dst, const R9G9B9E5 *src1, const R9G9B9E5 *src2); +}; +static_assert(sizeof(R9G9B9E5) == 4, "R9G9B9E5 struct not 32-bits."); + +struct R11G11B10F +{ + uint32_t R : 11; + uint32_t G : 11; + uint32_t B : 10; + + static void readColor(gl::ColorF *dst, const R11G11B10F *src); + static void writeColor(R11G11B10F *dst, const gl::ColorF *src); + static void average(R11G11B10F *dst, const R11G11B10F *src1, const R11G11B10F *src2); +}; +static_assert(sizeof(R11G11B10F) == 4, "R11G11B10F struct not 32-bits."); + +} // namespace angle + +#endif // IMAGEUTIL_IMAGEFORMATS_H_ |