guijan
/
legacy-imlib2
forked from old/legacy-imlib2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fixzed C code for ALPHA destination.. ok NOW its got it right... havent done 

asm code though... MAY need to optimize C code math for alpha dest.


SVN revision: 2613
This commit is contained in:
Carsten Haitzler 2000-05-08 23:20:11 +00:00
parent 4c35ac5beb
commit 1679cca791
1 changed files with 33 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
src/blend.c
View File

@ -82,12 +82,14 @@ __imlib_BlendRGBAToRGBA(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_VAL(p1) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_VAL(p1) + (((255 - A_VAL(p2)) * (A_VAL(p1))) / 255));
BLEND_COLOR(a, R_VAL(p2), R_VAL(p1), R_VAL(p2));
BLEND_COLOR(a, G_VAL(p2), G_VAL(p1), G_VAL(p2));
BLEND_COLOR(a, B_VAL(p2), B_VAL(p1), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_VAL(p1) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_VAL(p1) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -147,11 +149,13 @@ __imlib_AddBlendRGBAToRGBA(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_VAL(p1) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_VAL(p1) + (((255 - A_VAL(p2)) * (A_VAL(p1))) / 255));
ADD_COLOR_WITH_ALPHA(a, R_VAL(p2), R_VAL(p1), R_VAL(p2));
ADD_COLOR_WITH_ALPHA(a, G_VAL(p2), G_VAL(p1), G_VAL(p2));
ADD_COLOR_WITH_ALPHA(a, B_VAL(p2), B_VAL(p1), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_VAL(p1) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_VAL(p1) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -220,11 +224,13 @@ __imlib_SubBlendRGBAToRGBA(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_VAL(p1) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_VAL(p1) + (((255 - A_VAL(p2)) * (A_VAL(p1))) / 255));
SUB_COLOR_WITH_ALPHA(a, R_VAL(p2), R_VAL(p1), R_VAL(p2));
SUB_COLOR_WITH_ALPHA(a, G_VAL(p2), G_VAL(p1), G_VAL(p2));
SUB_COLOR_WITH_ALPHA(a, B_VAL(p2), B_VAL(p1), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_VAL(p1) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_VAL(p1) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -294,11 +300,13 @@ __imlib_ReBlendRGBAToRGBA(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_VAL(p1) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_VAL(p1) + (((255 - A_VAL(p2)) * (A_VAL(p1))) / 255));
RESHADE_COLOR_WITH_ALPHA(a, R_VAL(p2), R_VAL(p1), R_VAL(p2));
RESHADE_COLOR_WITH_ALPHA(a, G_VAL(p2), G_VAL(p1), G_VAL(p2));
RESHADE_COLOR_WITH_ALPHA(a, B_VAL(p2), B_VAL(p1), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_VAL(p1) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_VAL(p1) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -384,11 +392,13 @@ __imlib_BlendRGBAToRGBACmod(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (((255 - A_VAL(p2)) * (A_CMOD(cm, A_VAL(p1)))) / 255));
BLEND_COLOR(a, R_VAL(p2), R_CMOD(cm, R_VAL(p1)), R_VAL(p2));
BLEND_COLOR(a, G_VAL(p2), G_CMOD(cm, G_VAL(p1)), G_VAL(p2));
BLEND_COLOR(a, B_VAL(p2), B_CMOD(cm, B_VAL(p1)), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_CMOD(cm, A_VAL(p1)) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_CMOD(cm, A_VAL(p1)) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -485,11 +495,13 @@ __imlib_AddBlendRGBAToRGBACmod(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (((255 - A_VAL(p2)) * (A_CMOD(cm, A_VAL(p1)))) / 255));
ADD_COLOR_WITH_ALPHA(a, R_VAL(p2), R_CMOD(cm, R_VAL(p1)), R_VAL(p2));
ADD_COLOR_WITH_ALPHA(a, G_VAL(p2), G_CMOD(cm, G_VAL(p1)), G_VAL(p2));
ADD_COLOR_WITH_ALPHA(a, B_VAL(p2), B_CMOD(cm, B_VAL(p1)), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_CMOD(cm, A_VAL(p1)) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_CMOD(cm, A_VAL(p1)) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -587,11 +599,13 @@ __imlib_SubBlendRGBAToRGBACmod(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (((255 - A_VAL(p2)) * (A_CMOD(cm, A_VAL(p1)))) / 255));
SUB_COLOR_WITH_ALPHA(a, R_VAL(p2), R_CMOD(cm, R_VAL(p1)), R_VAL(p2));
SUB_COLOR_WITH_ALPHA(a, G_VAL(p2), G_CMOD(cm, G_VAL(p1)), G_VAL(p2));
SUB_COLOR_WITH_ALPHA(a, B_VAL(p2), B_CMOD(cm, B_VAL(p1)), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_CMOD(cm, A_VAL(p1)) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_CMOD(cm, A_VAL(p1)) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}
@ -691,11 +705,13 @@ __imlib_ReBlendRGBAToRGBACmod(DATA32 *src, int srcw, DATA32 *dst, int dstw,
{
LOOP_START_3
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (255 - A_VAL(p2)));
SATURATE_UPPER(a, A_CMOD(cm, A_VAL(p1)) + (((255 - A_VAL(p2)) * (A_CMOD(cm, A_VAL(p1)))) / 255));
RESHADE_COLOR_WITH_ALPHA(a, R_VAL(p2), R_CMOD(cm, R_VAL(p1)), R_VAL(p2));
RESHADE_COLOR_WITH_ALPHA(a, G_VAL(p2), G_CMOD(cm, G_VAL(p1)), G_VAL(p2));
RESHADE_COLOR_WITH_ALPHA(a, B_VAL(p2), B_CMOD(cm, B_VAL(p1)), B_VAL(p2));
SATURATE_UPPER(A_VAL(p2), A_CMOD(cm, A_VAL(p1)) + A_VAL(p2));
A_VAL(p2) = A_VAL(p2) + ((A_CMOD(cm, A_VAL(p1)) * (255 - A_VAL(p2))) / 255);
LOOP_END_WITH_INCREMENT
}