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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /gfx/angle/checkout/src/image_util/generatemip.inc | |
parent | Initial commit. (diff) | |
download | firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/angle/checkout/src/image_util/generatemip.inc')
-rw-r--r-- | gfx/angle/checkout/src/image_util/generatemip.inc | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/image_util/generatemip.inc b/gfx/angle/checkout/src/image_util/generatemip.inc new file mode 100644 index 0000000000..7d977795d5 --- /dev/null +++ b/gfx/angle/checkout/src/image_util/generatemip.inc @@ -0,0 +1,268 @@ +// +// Copyright (c) 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. +// + +// generatemip.inc: Defines the GenerateMip function, templated on the format +// type of the image for which mip levels are being generated. + +#include "common/mathutil.h" + +#include "image_util/imageformats.h" + +namespace angle +{ + +namespace priv +{ + +template <typename T> +static inline T *GetPixel(uint8_t *data, size_t x, size_t y, size_t z, size_t rowPitch, size_t depthPitch) +{ + return reinterpret_cast<T*>(data + (x * sizeof(T)) + (y * rowPitch) + (z * depthPitch)); +} + +template <typename T> +static inline const T *GetPixel(const uint8_t *data, size_t x, size_t y, size_t z, size_t rowPitch, size_t depthPitch) +{ + return reinterpret_cast<const T*>(data + (x * sizeof(T)) + (y * rowPitch) + (z * depthPitch)); +} + +template <typename T> +static void GenerateMip_Y(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth == 1); + ASSERT(sourceHeight > 1); + ASSERT(sourceDepth == 1); + + for (size_t y = 0; y < destHeight; y++) + { + const T *src0 = GetPixel<T>(sourceData, 0, y * 2, 0, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, 0, y * 2 + 1, 0, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, 0, y, 0, destRowPitch, destDepthPitch); + + T::average(dst, src0, src1); + } +} + +template <typename T> +static void GenerateMip_X(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth > 1); + ASSERT(sourceHeight == 1); + ASSERT(sourceDepth == 1); + + for (size_t x = 0; x < destWidth; x++) + { + const T *src0 = GetPixel<T>(sourceData, x * 2, 0, 0, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, x * 2 + 1, 0, 0, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, x, 0, 0, destRowPitch, destDepthPitch); + + T::average(dst, src0, src1); + } +} + +template <typename T> +static void GenerateMip_Z(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth == 1); + ASSERT(sourceHeight == 1); + ASSERT(sourceDepth > 1); + + for (size_t z = 0; z < destDepth; z++) + { + const T *src0 = GetPixel<T>(sourceData, 0, 0, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, 0, 0, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, 0, 0, z, destRowPitch, destDepthPitch); + + T::average(dst, src0, src1); + } +} + +template <typename T> +static void GenerateMip_XY(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth > 1); + ASSERT(sourceHeight > 1); + ASSERT(sourceDepth == 1); + + for (size_t y = 0; y < destHeight; y++) + { + for (size_t x = 0; x < destWidth; x++) + { + const T *src0 = GetPixel<T>(sourceData, x * 2, y * 2, 0, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, x * 2, y * 2 + 1, 0, sourceRowPitch, sourceDepthPitch); + const T *src2 = GetPixel<T>(sourceData, x * 2 + 1, y * 2, 0, sourceRowPitch, sourceDepthPitch); + const T *src3 = GetPixel<T>(sourceData, x * 2 + 1, y * 2 + 1, 0, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, x, y, 0, destRowPitch, destDepthPitch); + + T tmp0, tmp1; + + T::average(&tmp0, src0, src1); + T::average(&tmp1, src2, src3); + T::average(dst, &tmp0, &tmp1); + } + } +} + +template <typename T> +static void GenerateMip_YZ(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth == 1); + ASSERT(sourceHeight > 1); + ASSERT(sourceDepth > 1); + + for (size_t z = 0; z < destDepth; z++) + { + for (size_t y = 0; y < destHeight; y++) + { + const T *src0 = GetPixel<T>(sourceData, 0, y * 2, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, 0, y * 2, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + const T *src2 = GetPixel<T>(sourceData, 0, y * 2 + 1, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src3 = GetPixel<T>(sourceData, 0, y * 2 + 1, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, 0, y, z, destRowPitch, destDepthPitch); + + T tmp0, tmp1; + + T::average(&tmp0, src0, src1); + T::average(&tmp1, src2, src3); + T::average(dst, &tmp0, &tmp1); + } + } +} + +template <typename T> +static void GenerateMip_XZ(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth > 1); + ASSERT(sourceHeight == 1); + ASSERT(sourceDepth > 1); + + for (size_t z = 0; z < destDepth; z++) + { + for (size_t x = 0; x < destWidth; x++) + { + const T *src0 = GetPixel<T>(sourceData, x * 2, 0, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, x * 2, 0, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + const T *src2 = GetPixel<T>(sourceData, x * 2 + 1, 0, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src3 = GetPixel<T>(sourceData, x * 2 + 1, 0, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, x, 0, z, destRowPitch, destDepthPitch); + + T tmp0, tmp1; + + T::average(&tmp0, src0, src1); + T::average(&tmp1, src2, src3); + T::average(dst, &tmp0, &tmp1); + } + } +} + +template <typename T> +static void GenerateMip_XYZ(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + ASSERT(sourceWidth > 1); + ASSERT(sourceHeight > 1); + ASSERT(sourceDepth > 1); + + for (size_t z = 0; z < destDepth; z++) + { + for (size_t y = 0; y < destHeight; y++) + { + for (size_t x = 0; x < destWidth; x++) + { + const T *src0 = GetPixel<T>(sourceData, x * 2, y * 2, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src1 = GetPixel<T>(sourceData, x * 2, y * 2, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + const T *src2 = GetPixel<T>(sourceData, x * 2, y * 2 + 1, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src3 = GetPixel<T>(sourceData, x * 2, y * 2 + 1, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + const T *src4 = GetPixel<T>(sourceData, x * 2 + 1, y * 2, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src5 = GetPixel<T>(sourceData, x * 2 + 1, y * 2, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + const T *src6 = GetPixel<T>(sourceData, x * 2 + 1, y * 2 + 1, z * 2, sourceRowPitch, sourceDepthPitch); + const T *src7 = GetPixel<T>(sourceData, x * 2 + 1, y * 2 + 1, z * 2 + 1, sourceRowPitch, sourceDepthPitch); + T *dst = GetPixel<T>(destData, x, y, z, destRowPitch, destDepthPitch); + + T tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; + + T::average(&tmp0, src0, src1); + T::average(&tmp1, src2, src3); + T::average(&tmp2, src4, src5); + T::average(&tmp3, src6, src7); + + T::average(&tmp4, &tmp0, &tmp1); + T::average(&tmp5, &tmp2, &tmp3); + + T::average(dst, &tmp4, &tmp5); + } + } + } +} + + +typedef void (*MipGenerationFunction)(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + size_t destWidth, size_t destHeight, size_t destDepth, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch); + +template <typename T> +static MipGenerationFunction GetMipGenerationFunction(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth) +{ + uint8_t index = ((sourceWidth > 1) ? 1 : 0) | + ((sourceHeight > 1) ? 2 : 0) | + ((sourceDepth > 1) ? 4 : 0); + + switch (index) + { + case 0: return nullptr; + case 1: return GenerateMip_X<T>; // W x 1 x 1 + case 2: return GenerateMip_Y<T>; // 1 x H x 1 + case 3: return GenerateMip_XY<T>; // W x H x 1 + case 4: return GenerateMip_Z<T>; // 1 x 1 x D + case 5: return GenerateMip_XZ<T>; // W x 1 x D + case 6: return GenerateMip_YZ<T>; // 1 x H x D + case 7: return GenerateMip_XYZ<T>; // W x H x D + } + + UNREACHABLE(); + return nullptr; +} + +} // namespace priv + +template <typename T> +inline void GenerateMip(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth, + const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch, + uint8_t *destData, size_t destRowPitch, size_t destDepthPitch) +{ + size_t mipWidth = std::max<size_t>(1, sourceWidth >> 1); + size_t mipHeight = std::max<size_t>(1, sourceHeight >> 1); + size_t mipDepth = std::max<size_t>(1, sourceDepth >> 1); + + priv::MipGenerationFunction generationFunction = priv::GetMipGenerationFunction<T>(sourceWidth, sourceHeight, sourceDepth); + ASSERT(generationFunction != nullptr); + + generationFunction(sourceWidth, sourceHeight, sourceDepth, sourceData, sourceRowPitch, sourceDepthPitch, + mipWidth, mipHeight, mipDepth, destData, destRowPitch, destDepthPitch); +} + +} // namespace angle |