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calculate constant values on shader compilation

This commit is contained in:
degasus 2014-02-25 16:06:55 +01:00
parent 8a4aa8c1f5
commit 11efa88157
1 changed files with 5 additions and 5 deletions
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10
Source/Core/VideoCommon/TextureConversionShader.cpp
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@ -90,18 +90,18 @@ void WriteSwizzler(char*& p, u32 format, API_TYPE ApiType)
" float2 uv0 = float2(0.0, 0.0);\n"
);
WRITE(p, " int y_block_position = uv1.y & ~(%d - 1);\n", blkH);
WRITE(p, " int y_offset_in_block = uv1.y & (%d - 1);\n", blkH);
WRITE(p, " int y_block_position = uv1.y & %d;\n", ~(blkH - 1));
WRITE(p, " int y_offset_in_block = uv1.y & %d;\n", blkH - 1);
WRITE(p, " int x_virtual_position = (uv1.x << %d) + y_offset_in_block * position.z;\n", Log2(samples));
WRITE(p, " int x_block_position = (x_virtual_position >> %d) & ~(%d - 1);\n", Log2(blkH), blkW);
WRITE(p, " int x_block_position = (x_virtual_position >> %d) & %d;\n", Log2(blkH), ~(blkW - 1));
if (samples == 1)
{
// 32 bit textures (RGBA8 and Z24) are store in 2 cache line increments
WRITE(p, " bool first = 0 == (x_virtual_position & %d);\n", 8 * samples); // first cache line, used in the encoders
WRITE(p, " x_virtual_position = x_virtual_position << 1;\n");
}
WRITE(p, " int x_offset_in_block = x_virtual_position & (%d - 1);\n", blkW);
WRITE(p, " int y_offset = (x_virtual_position >> %d) & (%d - 1);\n", Log2(blkW), blkH);
WRITE(p, " int x_offset_in_block = x_virtual_position & %d;\n", blkW - 1);
WRITE(p, " int y_offset = (x_virtual_position >> %d) & %d;\n", Log2(blkW), blkH - 1);
WRITE(p, " sampleUv.x = x_offset_in_block + x_block_position;\n");
WRITE(p, " sampleUv.y = y_block_position + y_offset;\n");