diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_blend.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_atom_blend.c | 61 |
1 files changed, 31 insertions, 30 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_blend.c b/mesalib/src/mesa/state_tracker/st_atom_blend.c index c22d4c42e..c02ea3ffa 100644 --- a/mesalib/src/mesa/state_tracker/st_atom_blend.c +++ b/mesalib/src/mesa/state_tracker/st_atom_blend.c @@ -156,7 +156,7 @@ translate_logicop(GLenum logicop) * Figure out if colormasks are different per rt.
*/
static GLboolean
-colormask_per_rt(struct gl_context *ctx)
+colormask_per_rt(const struct gl_context *ctx)
{
/* a bit suboptimal have to compare lots of values */
unsigned i;
@@ -172,7 +172,7 @@ colormask_per_rt(struct gl_context *ctx) * Figure out if blend enables/state are different per rt.
*/
static GLboolean
-blend_per_rt(struct gl_context *ctx)
+blend_per_rt(const struct gl_context *ctx)
{
if (ctx->Color.BlendEnabled &&
(ctx->Color.BlendEnabled != ((1 << ctx->Const.MaxDrawBuffers) - 1))) {
@@ -190,13 +190,14 @@ static void update_blend( struct st_context *st )
{
struct pipe_blend_state *blend = &st->state.blend;
+ const struct gl_context *ctx = st->ctx;
unsigned num_state = 1;
unsigned i, j;
memset(blend, 0, sizeof(*blend));
- if (blend_per_rt(st->ctx) || colormask_per_rt(st->ctx)) {
- num_state = st->ctx->Const.MaxDrawBuffers;
+ if (blend_per_rt(ctx) || colormask_per_rt(ctx)) {
+ num_state = ctx->Const.MaxDrawBuffers;
blend->independent_blend_enable = 1;
}
/* Note it is impossible to correctly deal with EXT_blend_logic_op and
@@ -205,52 +206,52 @@ update_blend( struct st_context *st ) and separate alpha/rgb logicop/blend support respectively. Neither
possible in gallium nor most hardware. Assume these combinations
don't happen. */
- if (st->ctx->Color.ColorLogicOpEnabled ||
- (st->ctx->Color.BlendEnabled &&
- st->ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) {
+ if (ctx->Color.ColorLogicOpEnabled ||
+ (ctx->Color.BlendEnabled &&
+ ctx->Color.Blend[0].EquationRGB == GL_LOGIC_OP)) {
/* logicop enabled */
blend->logicop_enable = 1;
- blend->logicop_func = translate_logicop(st->ctx->Color.LogicOp);
+ blend->logicop_func = translate_logicop(ctx->Color.LogicOp);
}
- else if (st->ctx->Color.BlendEnabled) {
+ else if (ctx->Color.BlendEnabled) {
/* blending enabled */
for (i = 0, j = 0; i < num_state; i++) {
- blend->rt[i].blend_enable = (st->ctx->Color.BlendEnabled >> i) & 0x1;
+ blend->rt[i].blend_enable = (ctx->Color.BlendEnabled >> i) & 0x1;
- if (st->ctx->Extensions.ARB_draw_buffers_blend)
+ if (ctx->Extensions.ARB_draw_buffers_blend)
j = i;
blend->rt[i].rgb_func =
- translate_blend(st->ctx->Color.Blend[j].EquationRGB);
+ translate_blend(ctx->Color.Blend[j].EquationRGB);
- if (st->ctx->Color.Blend[i].EquationRGB == GL_MIN ||
- st->ctx->Color.Blend[i].EquationRGB == GL_MAX) {
+ if (ctx->Color.Blend[i].EquationRGB == GL_MIN ||
+ ctx->Color.Blend[i].EquationRGB == GL_MAX) {
/* Min/max are special */
blend->rt[i].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend->rt[i].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
}
else {
blend->rt[i].rgb_src_factor =
- translate_blend(st->ctx->Color.Blend[j].SrcRGB);
+ translate_blend(ctx->Color.Blend[j].SrcRGB);
blend->rt[i].rgb_dst_factor =
- translate_blend(st->ctx->Color.Blend[j].DstRGB);
+ translate_blend(ctx->Color.Blend[j].DstRGB);
}
blend->rt[i].alpha_func =
- translate_blend(st->ctx->Color.Blend[j].EquationA);
+ translate_blend(ctx->Color.Blend[j].EquationA);
- if (st->ctx->Color.Blend[i].EquationA == GL_MIN ||
- st->ctx->Color.Blend[i].EquationA == GL_MAX) {
+ if (ctx->Color.Blend[i].EquationA == GL_MIN ||
+ ctx->Color.Blend[i].EquationA == GL_MAX) {
/* Min/max are special */
blend->rt[i].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend->rt[i].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
}
else {
blend->rt[i].alpha_src_factor =
- translate_blend(st->ctx->Color.Blend[j].SrcA);
+ translate_blend(ctx->Color.Blend[j].SrcA);
blend->rt[i].alpha_dst_factor =
- translate_blend(st->ctx->Color.Blend[j].DstA);
+ translate_blend(ctx->Color.Blend[j].DstA);
}
}
}
@@ -260,25 +261,25 @@ update_blend( struct st_context *st ) /* Colormask - maybe reverse these bits? */
for (i = 0; i < num_state; i++) {
- if (st->ctx->Color.ColorMask[i][0])
+ if (ctx->Color.ColorMask[i][0])
blend->rt[i].colormask |= PIPE_MASK_R;
- if (st->ctx->Color.ColorMask[i][1])
+ if (ctx->Color.ColorMask[i][1])
blend->rt[i].colormask |= PIPE_MASK_G;
- if (st->ctx->Color.ColorMask[i][2])
+ if (ctx->Color.ColorMask[i][2])
blend->rt[i].colormask |= PIPE_MASK_B;
- if (st->ctx->Color.ColorMask[i][3])
+ if (ctx->Color.ColorMask[i][3])
blend->rt[i].colormask |= PIPE_MASK_A;
}
- if (st->ctx->Color.DitherFlag)
+ if (ctx->Color.DitherFlag)
blend->dither = 1;
- if (st->ctx->Multisample.Enabled) {
+ if (ctx->Multisample.Enabled) {
/* unlike in gallium/d3d10 these operations are only performed
if msaa is enabled */
- if (st->ctx->Multisample.SampleAlphaToCoverage)
+ if (ctx->Multisample.SampleAlphaToCoverage)
blend->alpha_to_coverage = 1;
- if (st->ctx->Multisample.SampleAlphaToOne)
+ if (ctx->Multisample.SampleAlphaToOne)
blend->alpha_to_one = 1;
}
@@ -286,7 +287,7 @@ update_blend( struct st_context *st ) {
struct pipe_blend_color bc;
- COPY_4FV(bc.color, st->ctx->Color.BlendColorUnclamped);
+ COPY_4FV(bc.color, ctx->Color.BlendColorUnclamped);
cso_set_blend_color(st->cso_context, &bc);
}
}
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