forked from enlightenment/efl
143 lines
2.7 KiB
C
143 lines
2.7 KiB
C
#include "evas_common.h"
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#ifdef BUILD_MMX
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#include "evas_mmx.h"
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#endif
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extern DATA8 pow_lut[256][256];
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extern const DATA16 const_c1[4];
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#ifdef BUILD_C
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void
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evas_common_blend_alpha_color_rgba_to_rgb_c (DATA8 *src, DATA32 *dst, int len, DATA32 col)
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{
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DATA8 *src_ptr;
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DATA32 *dst_ptr, *dst_end_ptr;
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src_ptr = src;
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dst_ptr = dst;
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dst_end_ptr = dst + len;
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while (dst_ptr < dst_end_ptr)
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{
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DATA32 tmp;
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DATA8 aa;
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aa = (((*src_ptr) +1) * A_VAL(&col)) >> 8;
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BLEND_COLOR(aa, R_VAL(dst_ptr),
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R_VAL(&col), R_VAL(dst_ptr),
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tmp);
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BLEND_COLOR(aa, G_VAL(dst_ptr),
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G_VAL(&col), G_VAL(dst_ptr),
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tmp);
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BLEND_COLOR(aa, B_VAL(dst_ptr),
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B_VAL(&col), B_VAL(dst_ptr),
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tmp);
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src_ptr++;
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dst_ptr++;
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}
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}
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#endif
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#ifdef BUILD_MMX
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void
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evas_common_blend_alpha_color_rgba_to_rgb_mmx (DATA8 *src, DATA32 *dst, int len, DATA32 col)
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{
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DATA8 *src_ptr;
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DATA32 *dst_ptr, *dst_end_ptr;
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src_ptr = src;
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dst_ptr = dst;
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dst_end_ptr = dst + len;
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pxor_r2r(mm6, mm6);
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movd_m2r(col, mm1);
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punpcklbw_r2r(mm1, mm6);
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psrlw_i2r(8, mm6);
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movq_m2r(*const_c1, mm5);
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paddw_r2r(mm5, mm6);
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pxor_r2r(mm4, mm4);
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while (dst_ptr < dst_end_ptr)
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{
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DATA32 tmp;
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tmp = 0xffffff;
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A_VAL(&tmp) = *src_ptr;
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movd_m2r(tmp, mm1);
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/* this could be more optimial.. but it beats the c code by almost */
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/* double */
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pxor_r2r(mm7, mm7);
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punpcklbw_r2r(mm1, mm7);
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psrlw_i2r(8, mm7);
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pmullw_r2r(mm6, mm7);
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psrlw_i2r(8, mm7);
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packuswb_r2r(mm7, mm7);
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movq_r2r(mm7, mm1);
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/* and back to our normal programming... */
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movd_m2r(dst_ptr[0], mm2);
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movq_r2r(mm1, mm3);
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punpcklbw_r2r(mm3, mm3);
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punpckhwd_r2r(mm3, mm3);
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punpckhdq_r2r(mm3, mm3);
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psrlw_i2r(1, mm3);
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psrlq_i2r(16, mm3);
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punpcklbw_r2r(mm4, mm1);
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punpcklbw_r2r(mm4, mm2);
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psubw_r2r(mm2, mm1);
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psllw_i2r(1, mm1);
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paddw_r2r(mm5, mm1);
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pmulhw_r2r(mm3, mm1);
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paddw_r2r(mm1, mm2);
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packuswb_r2r(mm4, mm2);
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movd_r2m(mm2, dst_ptr[0]);
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src_ptr++;
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dst_ptr++;
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}
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}
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#endif
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void
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evas_common_blend_alpha_color_rgba_to_rgba_c (DATA8 *src, DATA32 *dst, int len, DATA32 col)
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{
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DATA8 *src_ptr;
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DATA32 *dst_ptr, *dst_end_ptr;
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src_ptr = src;
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dst_ptr = dst;
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dst_end_ptr = dst + len;
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while (dst_ptr < dst_end_ptr)
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{
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DATA32 tmp;
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DATA8 a;
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DATA8 aa;
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aa = (((*src_ptr) + 1) * A_VAL(&col)) >> 8;
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a = pow_lut[aa][A_VAL(dst_ptr)];
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BLEND_COLOR(a, R_VAL(dst_ptr),
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R_VAL(&col), R_VAL(dst_ptr),
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tmp);
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BLEND_COLOR(a, G_VAL(dst_ptr),
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G_VAL(&col), G_VAL(dst_ptr),
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tmp);
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BLEND_COLOR(a, B_VAL(dst_ptr),
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B_VAL(&col), B_VAL(dst_ptr),
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tmp);
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A_VAL(dst_ptr) = A_VAL(dst_ptr) + ((aa * (255 - A_VAL(dst_ptr))) / 255);
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src_ptr++;
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dst_ptr++;
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}
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}
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