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GregMiscellaneous: zzogl-pg: 

* Properly update the different part of the pixels.


git-svn-id: http://pcsx2.googlecode.com/svn/branches/GregMiscellaneous@3862 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
gregory.hainaut@gmail.com 2010-09-30 17:34:21 +00:00
parent 523f063f3c
commit 7fabbcf065
1 changed files with 16 additions and 9 deletions
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25
plugins/zzogl-pg/opengl/targets.cpp
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@ -3285,20 +3285,27 @@ __forceinline void update_4pixels_sse2_bis(u32* src, u32* basepage, u32 i_msk, u
__m128i final_pixels_0;
if (texture_16b) {
old_pixels_0 = _mm_loadu_si128((__m128i*)dst_add); // 3H 3L 2H 2L 1H 1L 0H 0L
// Note: for futur improvement
// process 8 pixels -> no need to separate high and low word.
// Just apply the fbm mask to all old value
// do not check the alignment. first 4 are the low one, the second four are the high one.
// Separate high and low word
__m128i old_pixels_0_L = _mm_andnot_si128(_mm_load_si128((__m128i*)pixel_upper_mask), old_pixels_0);
__m128i old_pixels_0_H = _mm_and_si128(_mm_load_si128((__m128i*)pixel_upper_mask), old_pixels_0);
// Update either High or low word
if (alignment) {
// Set high word to 0
old_pixels_0 = _mm_andnot_si128(_mm_load_si128((__m128i*)pixel_upper_mask), old_pixels_0);
// update high word (fbm)
old_pixels_0_H = _mm_and_si128(old_pixels_0_H, imask);
// Align pixels_0
pixels_0 = _mm_slli_epi32(pixels_0, 16);
} else {
// Set low word to 0
old_pixels_0 = _mm_and_si128(_mm_load_si128((__m128i*)pixel_upper_mask), old_pixels_0);
// update low word (fbm)
old_pixels_0_L = _mm_and_si128(old_pixels_0_H, imask);
}
// apply the fbm mask
old_pixels_0 = _mm_and_si128(old_pixels_0, imask);
// rebuild the value
final_pixels_0 = _mm_or_si128(pixels_0, old_pixels_0);
// Merge all results
final_pixels_0 = _mm_or_si128(old_pixels_0_H, old_pixels_0_L);
final_pixels_0 = _mm_or_si128(final_pixels_0, pixels_0);
} else {
old_pixels_0 = _mm_and_si128(imask, _mm_load_si128((__m128i*)dst_add));