#include "st_context.h"
#include "st_atom.h"
+
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
+#include "cso_cache/cso_context.h"
+#include "main/macros.h"
/**
* Convert GLenum blend tokens to pipe tokens.
* Both blend factors and blend funcs are accepted.
*/
static GLuint
-gl_blend_to_sp(GLenum blend)
+translate_blend(GLenum blend)
{
switch (blend) {
/* blend functions */
case GL_ONE_MINUS_SRC_ALPHA:
return PIPE_BLENDFACTOR_INV_SRC_ALPHA;
case GL_ONE_MINUS_DST_COLOR:
- return PIPE_BLENDFACTOR_INV_DST_ALPHA;
- case GL_ONE_MINUS_DST_ALPHA:
return PIPE_BLENDFACTOR_INV_DST_COLOR;
+ case GL_ONE_MINUS_DST_ALPHA:
+ return PIPE_BLENDFACTOR_INV_DST_ALPHA;
case GL_ONE_MINUS_CONSTANT_COLOR:
return PIPE_BLENDFACTOR_INV_CONST_COLOR;
case GL_ONE_MINUS_CONSTANT_ALPHA:
return PIPE_BLENDFACTOR_INV_SRC1_ALPHA;
*/
default:
- assert("invalid GL token in gl_blend_to_sp()" == NULL);
+ assert("invalid GL token in translate_blend()" == NULL);
return 0;
}
}
* Convert GLenum logicop tokens to pipe tokens.
*/
static GLuint
-gl_logicop_to_sp(GLenum logicop)
+translate_logicop(GLenum logicop)
{
switch (logicop) {
case GL_CLEAR:
case GL_SET:
return PIPE_LOGICOP_SET;
default:
- assert("invalid GL token in gl_logicop_to_sp()" == NULL);
+ assert("invalid GL token in translate_logicop()" == NULL);
return 0;
}
}
+/**
+ * Figure out if colormasks are different per rt.
+ */
+static GLboolean
+colormask_per_rt(GLcontext *ctx)
+{
+ /* a bit suboptimal have to compare lots of values */
+ unsigned i;
+ for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) {
+ if (memcmp(ctx->Color.ColorMask[0], ctx->Color.ColorMask[i], 4)) {
+ return GL_TRUE;
+ }
+ }
+ return GL_FALSE;
+}
+
+/**
+ * Figure out if blend enables are different per rt.
+ */
+static GLboolean
+blend_per_rt(GLcontext *ctx)
+{
+ if (ctx->Color.BlendEnabled &&
+ (ctx->Color.BlendEnabled != ((1 << ctx->Const.MaxDrawBuffers) - 1))) {
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
static void
update_blend( struct st_context *st )
{
- struct pipe_blend_state blend;
+ struct pipe_blend_state *blend = &st->state.blend;
+ unsigned num_state = 1;
+ unsigned i;
- memset(&blend, 0, sizeof(blend));
+ memset(blend, 0, sizeof(*blend));
+ if (blend_per_rt(st->ctx) || colormask_per_rt(st->ctx)) {
+ num_state = st->ctx->Const.MaxDrawBuffers;
+ blend->independent_blend_enable = 1;
+ }
+ /* Note it is impossible to correctly deal with EXT_blend_logic_op and
+ EXT_draw_buffers2/EXT_blend_equation_separate at the same time.
+ These combinations would require support for per-rt logicop enables
+ 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.BlendEquationRGB == GL_LOGIC_OP)) {
/* logicop enabled */
- blend.logicop_enable = 1;
- blend.logicop_func = gl_logicop_to_sp(st->ctx->Color.LogicOp);
+ blend->logicop_enable = 1;
+ blend->logicop_func = translate_logicop(st->ctx->Color.LogicOp);
}
else if (st->ctx->Color.BlendEnabled) {
/* blending enabled */
- blend.blend_enable = 1;
-
- blend.rgb_func = gl_blend_to_sp(st->ctx->Color.BlendEquationRGB);
- 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);
- }
+ for (i = 0; i < num_state; i++) {
- blend.alpha_func = gl_blend_to_sp(st->ctx->Color.BlendEquationA);
- 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);
+ blend->rt[i].blend_enable = (st->ctx->Color.BlendEnabled >> i) & 0x1;
+
+ blend->rt[i].rgb_func = translate_blend(st->ctx->Color.BlendEquationRGB);
+ if (st->ctx->Color.BlendEquationRGB == GL_MIN ||
+ st->ctx->Color.BlendEquationRGB == 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.BlendSrcRGB);
+ blend->rt[i].rgb_dst_factor = translate_blend(st->ctx->Color.BlendDstRGB);
+ }
+
+ blend->rt[i].alpha_func = translate_blend(st->ctx->Color.BlendEquationA);
+ if (st->ctx->Color.BlendEquationA == GL_MIN ||
+ st->ctx->Color.BlendEquationA == 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.BlendSrcA);
+ blend->rt[i].alpha_dst_factor = translate_blend(st->ctx->Color.BlendDstA);
+ }
}
}
else {
}
/* Colormask - maybe reverse these bits? */
- if (st->ctx->Color.ColorMask[0])
- blend.colormask |= PIPE_MASK_R;
- if (st->ctx->Color.ColorMask[1])
- blend.colormask |= PIPE_MASK_G;
- if (st->ctx->Color.ColorMask[2])
- blend.colormask |= PIPE_MASK_B;
- if (st->ctx->Color.ColorMask[3])
- blend.colormask |= PIPE_MASK_A;
+ for (i = 0; i < num_state; i++) {
+ if (st->ctx->Color.ColorMask[i][0])
+ blend->rt[i].colormask |= PIPE_MASK_R;
+ if (st->ctx->Color.ColorMask[i][1])
+ blend->rt[i].colormask |= PIPE_MASK_G;
+ if (st->ctx->Color.ColorMask[i][2])
+ blend->rt[i].colormask |= PIPE_MASK_B;
+ if (st->ctx->Color.ColorMask[i][3])
+ blend->rt[i].colormask |= PIPE_MASK_A;
+ }
if (st->ctx->Color.DitherFlag)
- blend.dither = 1;
+ blend->dither = 1;
- if (memcmp(&blend, &st->state.blend, sizeof(blend)) != 0) {
- /* state has changed */
- st->state.blend = blend; /* struct copy */
- st->pipe->set_blend_state(st->pipe, &blend); /* set new state */
- }
+ cso_set_blend(st->cso_context, blend);
- if (memcmp(st->ctx->Color.BlendColor, &st->state.blend_color, 4 * sizeof(GLfloat)) != 0) {
- /* state has changed */
- st->state.blend_color.color[0] = st->ctx->Color.BlendColor[0];
- st->state.blend_color.color[1] = st->ctx->Color.BlendColor[1];
- st->state.blend_color.color[2] = st->ctx->Color.BlendColor[2];
- st->state.blend_color.color[3] = st->ctx->Color.BlendColor[3];
- st->pipe->set_blend_color(st->pipe, (struct pipe_blend_color *) st->ctx->Color.BlendColor);
+ {
+ struct pipe_blend_color bc;
+ COPY_4FV(bc.color, st->ctx->Color.BlendColor);
+ cso_set_blend_color(st->cso_context, &bc);
}
}
const struct st_tracked_state st_update_blend = {
- .dirty = {
- .mesa = (_NEW_COLOR), /* XXX _NEW_BLEND someday? */
- .st = 0,
+ "st_update_blend", /* name */
+ { /* dirty */
+ (_NEW_COLOR), /* XXX _NEW_BLEND someday? */ /* mesa */
+ 0, /* st */
},
- .update = update_blend
+ update_blend, /* update */
};
-
-
-
-
-
projects / mesa.git / blobdiff