#include "brw_defines.h"
#include "brw_util.h"
#include "main/macros.h"
-#include "main/enums.h"
static void prepare_cc_vp( struct brw_context *brw )
{
+ GLcontext *ctx = &brw->intel.ctx;
struct brw_cc_viewport ccv;
memset(&ccv, 0, sizeof(ccv));
- ccv.min_depth = 0.0;
- ccv.max_depth = 1.0;
+ /* _NEW_TRANSOFORM */
+ if (ctx->Transform.DepthClamp) {
+ /* _NEW_VIEWPORT */
+ ccv.min_depth = MIN2(ctx->Viewport.Near, ctx->Viewport.Far);
+ ccv.max_depth = MAX2(ctx->Viewport.Near, ctx->Viewport.Far);
+ } else {
+ ccv.min_depth = 0.0;
+ ccv.max_depth = 1.0;
+ }
dri_bo_unreference(brw->cc.vp_bo);
- brw->cc.vp_bo = brw_cache_data( &brw->cache, BRW_CC_VP, &ccv, NULL, 0 );
+ brw->cc.vp_bo = brw_cache_data(&brw->cache, BRW_CC_VP, &ccv, sizeof(ccv),
+ NULL, 0);
}
const struct brw_tracked_state brw_cc_vp = {
.dirty = {
- .mesa = 0,
+ .mesa = _NEW_VIEWPORT | _NEW_TRANSFORM,
.brw = BRW_NEW_CONTEXT,
.cache = 0
},
GLenum depth_func;
};
+/**
+ * Modify blend function to force destination alpha to 1.0
+ *
+ * If \c function specifies a blend function that uses destination alpha,
+ * replace it with a function that hard-wires destination alpha to 1.0. This
+ * is used when rendering to xRGB targets.
+ */
+static GLenum
+fix_xRGB_alpha(GLenum function)
+{
+ switch (function) {
+ case GL_DST_ALPHA:
+ return GL_ONE;
+
+ case GL_ONE_MINUS_DST_ALPHA:
+ case GL_SRC_ALPHA_SATURATE:
+ return GL_ZERO;
+ }
+
+ return function;
+}
+
static void
cc_unit_populate_key(struct brw_context *brw, struct brw_cc_unit_key *key)
{
- struct gl_stencil_attrib *stencil = brw->attribs.Stencil;
+ GLcontext *ctx = &brw->intel.ctx;
+ const unsigned back = ctx->Stencil._BackFace;
memset(key, 0, sizeof(*key));
- key->stencil = stencil->Enabled;
- key->stencil_two_side = stencil->_TestTwoSide;
+ key->stencil = ctx->Stencil._Enabled;
+ key->stencil_two_side = ctx->Stencil._TestTwoSide;
if (key->stencil) {
- key->stencil_func[0] = stencil->Function[0];
- key->stencil_fail_op[0] = stencil->FailFunc[0];
- key->stencil_pass_depth_fail_op[0] = stencil->ZFailFunc[0];
- key->stencil_pass_depth_pass_op[0] = stencil->ZPassFunc[0];
- key->stencil_ref[0] = stencil->Ref[0];
- key->stencil_write_mask[0] = stencil->WriteMask[0];
- key->stencil_test_mask[0] = stencil->ValueMask[0];
+ key->stencil_func[0] = ctx->Stencil.Function[0];
+ key->stencil_fail_op[0] = ctx->Stencil.FailFunc[0];
+ key->stencil_pass_depth_fail_op[0] = ctx->Stencil.ZFailFunc[0];
+ key->stencil_pass_depth_pass_op[0] = ctx->Stencil.ZPassFunc[0];
+ key->stencil_ref[0] = ctx->Stencil.Ref[0];
+ key->stencil_write_mask[0] = ctx->Stencil.WriteMask[0];
+ key->stencil_test_mask[0] = ctx->Stencil.ValueMask[0];
}
if (key->stencil_two_side) {
- key->stencil_func[1] = stencil->Function[1];
- key->stencil_fail_op[1] = stencil->FailFunc[1];
- key->stencil_pass_depth_fail_op[1] = stencil->ZFailFunc[1];
- key->stencil_pass_depth_pass_op[1] = stencil->ZPassFunc[1];
- key->stencil_ref[1] = stencil->Ref[1];
- key->stencil_write_mask[1] = stencil->WriteMask[1];
- key->stencil_test_mask[1] = stencil->ValueMask[1];
+ key->stencil_func[1] = ctx->Stencil.Function[back];
+ key->stencil_fail_op[1] = ctx->Stencil.FailFunc[back];
+ key->stencil_pass_depth_fail_op[1] = ctx->Stencil.ZFailFunc[back];
+ key->stencil_pass_depth_pass_op[1] = ctx->Stencil.ZPassFunc[back];
+ key->stencil_ref[1] = ctx->Stencil.Ref[back];
+ key->stencil_write_mask[1] = ctx->Stencil.WriteMask[back];
+ key->stencil_test_mask[1] = ctx->Stencil.ValueMask[back];
}
- if (brw->attribs.Color->_LogicOpEnabled)
- key->logic_op = brw->attribs.Color->LogicOp;
+ if (ctx->Color._LogicOpEnabled)
+ key->logic_op = ctx->Color.LogicOp;
else
key->logic_op = GL_COPY;
- key->color_blend = brw->attribs.Color->BlendEnabled;
+ key->color_blend = ctx->Color.BlendEnabled;
if (key->color_blend) {
- key->blend_eq_rgb = brw->attribs.Color->BlendEquationRGB;
- key->blend_eq_a = brw->attribs.Color->BlendEquationA;
- key->blend_src_rgb = brw->attribs.Color->BlendSrcRGB;
- key->blend_dst_rgb = brw->attribs.Color->BlendDstRGB;
- key->blend_src_a = brw->attribs.Color->BlendSrcA;
- key->blend_dst_a = brw->attribs.Color->BlendDstA;
+ key->blend_eq_rgb = ctx->Color.BlendEquationRGB;
+ key->blend_eq_a = ctx->Color.BlendEquationA;
+ key->blend_src_rgb = ctx->Color.BlendSrcRGB;
+ key->blend_dst_rgb = ctx->Color.BlendDstRGB;
+ key->blend_src_a = ctx->Color.BlendSrcA;
+ key->blend_dst_a = ctx->Color.BlendDstA;
+
+ /* If the renderbuffer is XRGB, we have to frob the blend function to
+ * force the destination alpha to 1.0. This means replacing GL_DST_ALPHA
+ * with GL_ONE and GL_ONE_MINUS_DST_ALPHA with GL_ZERO.
+ */
+ if (ctx->DrawBuffer->Visual.alphaBits == 0) {
+ key->blend_src_rgb = fix_xRGB_alpha(key->blend_src_rgb);
+ key->blend_src_a = fix_xRGB_alpha(key->blend_src_a);
+ key->blend_dst_rgb = fix_xRGB_alpha(key->blend_dst_rgb);
+ key->blend_dst_a = fix_xRGB_alpha(key->blend_dst_a);
+ }
}
- key->alpha_enabled = brw->attribs.Color->AlphaEnabled;
+ key->alpha_enabled = ctx->Color.AlphaEnabled;
if (key->alpha_enabled) {
- key->alpha_func = brw->attribs.Color->AlphaFunc;
- key->alpha_ref = brw->attribs.Color->AlphaRef;
+ key->alpha_func = ctx->Color.AlphaFunc;
+ key->alpha_ref = ctx->Color.AlphaRef;
}
- key->dither = brw->attribs.Color->DitherFlag;
+ key->dither = ctx->Color.DitherFlag;
- key->depth_test = brw->attribs.Depth->Test;
+ key->depth_test = ctx->Depth.Test;
if (key->depth_test) {
- key->depth_func = brw->attribs.Depth->Func;
- key->depth_write = brw->attribs.Depth->Mask;
+ key->depth_func = ctx->Depth.Func;
+ key->depth_write = ctx->Depth.Mask;
}
}
bo = brw_upload_cache(&brw->cache, BRW_CC_UNIT,
key, sizeof(*key),
&brw->cc.vp_bo, 1,
- &cc, sizeof(cc),
- NULL, NULL);
+ &cc, sizeof(cc));
/* Emit CC viewport relocation */
dri_bo_emit_reloc(bo,
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