//
-// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
+// Copyright (c) 2002-2014 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.
//
#ifndef LIBGLESV2_RENDERER_GENERATEMIP_H_
#define LIBGLESV2_RENDERER_GENERATEMIP_H_
-#include "common/mathutil.h"
-#include "imageformats.h"
+#include "libGLESv2/renderer/imageformats.h"
+#include "libGLESv2/angletypes.h"
namespace rx
{
-namespace priv
-{
-
-template <typename T>
-static inline T *GetPixel(void *data, unsigned int x, unsigned int y, unsigned int z, unsigned int rowPitch, unsigned int depthPitch)
-{
- return reinterpret_cast<T*>(reinterpret_cast<unsigned char*>(data) + (x * sizeof(T)) + (y * rowPitch) + (z * depthPitch));
-}
-
-template <typename T>
-static inline const T *GetPixel(const void *data, unsigned int x, unsigned int y, unsigned int z, unsigned int rowPitch, unsigned int depthPitch)
-{
- return reinterpret_cast<const T*>(reinterpret_cast<const unsigned char*>(data) + (x * sizeof(T)) + (y * rowPitch) + (z * depthPitch));
-}
-
-template <typename T>
-static void GenerateMip_Y(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth == 1);
- ASSERT(sourceHeight > 1);
- ASSERT(sourceDepth == 1);
-
- for (unsigned int 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(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth > 1);
- ASSERT(sourceHeight == 1);
- ASSERT(sourceDepth == 1);
-
- for (unsigned int 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(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth == 1);
- ASSERT(sourceHeight == 1);
- ASSERT(sourceDepth > 1);
-
- for (unsigned int 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(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth > 1);
- ASSERT(sourceHeight > 1);
- ASSERT(sourceDepth == 1);
-
- for (unsigned int y = 0; y < destHeight; y++)
- {
- for (unsigned int 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(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth == 1);
- ASSERT(sourceHeight > 1);
- ASSERT(sourceDepth > 1);
-
- for (unsigned int z = 0; z < destDepth; z++)
- {
- for (unsigned int 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(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth > 1);
- ASSERT(sourceHeight == 1);
- ASSERT(sourceDepth > 1);
-
- for (unsigned int z = 0; z < destDepth; z++)
- {
- for (unsigned int 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);
+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);
- 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(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- ASSERT(sourceWidth > 1);
- ASSERT(sourceHeight > 1);
- ASSERT(sourceDepth > 1);
-
- for (unsigned int z = 0; z < destDepth; z++)
- {
- for (unsigned int y = 0; y < destHeight; y++)
- {
- for (unsigned int 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)(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned int destWidth, unsigned int destHeight, unsigned int destDepth,
- unsigned char *destData, int destRowPitch, int destDepthPitch);
-
-template <typename T>
-static MipGenerationFunction GetMipGenerationFunction(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth)
-{
- unsigned char index = ((sourceWidth > 1) ? 1 : 0) |
- ((sourceHeight > 1) ? 2 : 0) |
- ((sourceDepth > 1) ? 4 : 0);
-
- switch (index)
- {
- 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
- default: return NULL;
- }
-}
-
-}
-
-template <typename T>
-static void GenerateMip(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
- const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
- unsigned char *destData, int destRowPitch, int destDepthPitch)
-{
- unsigned int mipWidth = std::max(1U, sourceWidth >> 1);
- unsigned int mipHeight = std::max(1U, sourceHeight >> 1);
- unsigned int mipDepth = std::max(1U, sourceDepth >> 1);
-
- priv::MipGenerationFunction generationFunction = priv::GetMipGenerationFunction<T>(sourceWidth, sourceHeight, sourceDepth);
- ASSERT(generationFunction != NULL);
-
- generationFunction(sourceWidth, sourceHeight, sourceDepth, sourceData, sourceRowPitch, sourceDepthPitch,
- mipWidth, mipHeight, mipDepth, destData, destRowPitch, destDepthPitch);
-}
-
-}
+#include "generatemip.inl"
#endif // LIBGLESV2_RENDERER_GENERATEMIP_H_
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