fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-09 06:48:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Blend MIN/MAX modes are special: the src/dest terms are always one.

Browse source
This commit is contained in:
Brian 2007-07-03 17:13:04 -06:00
parent f6d4f5e1e9
commit 111880798a
1 changed files with 20 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/mesa/state_tracker/st_atom_blend.c
View file

@ -169,12 +169,28 @@ update_blend( struct st_context *st )
blend.blend_enable = 1;
blend.rgb_func = gl_blend_to_sp(st->ctx->Color.BlendEquationRGB);
blend.rgb_src_factor = gl_blend_to_sp(st->ctx->Color.BlendSrcRGB);
blend.rgb_dst_factor = gl_blend_to_sp(st->ctx->Color.BlendDstRGB);
if (st->ctx->Color.BlendEquationRGB == GL_MIN ||
st->ctx->Color.BlendEquationRGB == GL_MAX) {
/* Min/max are special */
blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
}
else {
blend.rgb_src_factor = gl_blend_to_sp(st->ctx->Color.BlendSrcRGB);
blend.rgb_dst_factor = gl_blend_to_sp(st->ctx->Color.BlendDstRGB);
}
blend.alpha_func = gl_blend_to_sp(st->ctx->Color.BlendEquationA);
blend.alpha_src_factor = gl_blend_to_sp(st->ctx->Color.BlendSrcA);
blend.alpha_dst_factor = gl_blend_to_sp(st->ctx->Color.BlendDstA);
if (st->ctx->Color.BlendEquationA == GL_MIN ||
st->ctx->Color.BlendEquationA == GL_MAX) {
/* Min/max are special */
blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
}
else {
blend.alpha_src_factor = gl_blend_to_sp(st->ctx->Color.BlendSrcA);
blend.alpha_dst_factor = gl_blend_to_sp(st->ctx->Color.BlendDstA);
}
}
else {
/* no blending / logicop */