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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 | 9 |
| 10 #include "GrInOrderDrawBuffer.h" | 10 #include "GrInOrderDrawBuffer.h" |
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| 83 | 83 |
| 84 GrDrawState* drawState = this->drawState(); | 84 GrDrawState* drawState = this->drawState(); |
| 85 | 85 |
| 86 GrColor color = drawState->getColor(); | 86 GrColor color = drawState->getColor(); |
| 87 GrVertexAttribArray<3> attribs; | 87 GrVertexAttribArray<3> attribs; |
| 88 size_t currentOffset = 0; | 88 size_t currentOffset = 0; |
| 89 int colorOffset = -1, texOffset = -1; | 89 int colorOffset = -1, texOffset = -1; |
| 90 | 90 |
| 91 // set position attrib | 91 // set position attrib |
| 92 drawState->setAttribIndex(GrDrawState::kPosition_AttribIndex, attribs.count(
)); | 92 drawState->setAttribIndex(GrDrawState::kPosition_AttribIndex, attribs.count(
)); |
| 93 attribs.push_back(GrVertexAttrib(kVec2f_GrVertexAttribType, currentOffset)); | 93 GrVertexAttrib currAttrib = {kVec2f_GrVertexAttribType, currentOffset}; |
| 94 attribs.push_back(currAttrib); |
| 94 currentOffset += sizeof(GrPoint); | 95 currentOffset += sizeof(GrPoint); |
| 95 | 96 |
| 96 // Using per-vertex colors allows batching across colors. (A lot of rects in
a row differing | 97 // Using per-vertex colors allows batching across colors. (A lot of rects in
a row differing |
| 97 // only in color is a common occurrence in tables). However, having per-vert
ex colors disables | 98 // only in color is a common occurrence in tables). However, having per-vert
ex colors disables |
| 98 // blending optimizations because we don't know if the color will be solid o
r not. These | 99 // blending optimizations because we don't know if the color will be solid o
r not. These |
| 99 // optimizations help determine whether coverage and color can be blended co
rrectly when | 100 // optimizations help determine whether coverage and color can be blended co
rrectly when |
| 100 // dual-source blending isn't available. This comes into play when there is
coverage. If colors | 101 // dual-source blending isn't available. This comes into play when there is
coverage. If colors |
| 101 // were a stage it could take a hint that every vertex's color will be opaqu
e. | 102 // were a stage it could take a hint that every vertex's color will be opaqu
e. |
| 102 if (this->getCaps().dualSourceBlendingSupport() || | 103 if (this->getCaps().dualSourceBlendingSupport() || |
| 103 drawState->hasSolidCoverage(drawState->getAttribBindings())) { | 104 drawState->hasSolidCoverage(drawState->getAttribBindings())) { |
| 104 bindings |= GrDrawState::kColor_AttribBindingsBit; | 105 bindings |= GrDrawState::kColor_AttribBindingsBit; |
| 105 drawState->setAttribIndex(GrDrawState::kColor_AttribIndex, attribs.count
()); | 106 drawState->setAttribIndex(GrDrawState::kColor_AttribIndex, attribs.count
()); |
| 106 attribs.push_back(GrVertexAttrib(kVec4ub_GrVertexAttribType, currentOffs
et)); | 107 currAttrib.set(kVec4ub_GrVertexAttribType, currentOffset); |
| 108 attribs.push_back(currAttrib); |
| 107 colorOffset = currentOffset; | 109 colorOffset = currentOffset; |
| 108 currentOffset += sizeof(GrColor); | 110 currentOffset += sizeof(GrColor); |
| 109 // We set the draw state's color to white here. This is done so that any
batching performed | 111 // We set the draw state's color to white here. This is done so that any
batching performed |
| 110 // in our subclass's onDraw() won't get a false from GrDrawState::op== d
ue to a color | 112 // in our subclass's onDraw() won't get a false from GrDrawState::op== d
ue to a color |
| 111 // mismatch. TODO: Once vertex layout is owned by GrDrawState it should
skip comparing the | 113 // mismatch. TODO: Once vertex layout is owned by GrDrawState it should
skip comparing the |
| 112 // constant color in its op== when the kColor layout bit is set and then
we can remove this. | 114 // constant color in its op== when the kColor layout bit is set and then
we can remove this. |
| 113 acr.set(drawState, 0xFFFFFFFF); | 115 acr.set(drawState, 0xFFFFFFFF); |
| 114 } | 116 } |
| 115 | 117 |
| 116 uint32_t explicitCoordMask = 0; | 118 uint32_t explicitCoordMask = 0; |
| 117 if (NULL != srcRect) { | 119 if (NULL != srcRect) { |
| 118 bindings |= GrDrawState::ExplicitTexCoordAttribBindingsBit(stage); | 120 bindings |= GrDrawState::ExplicitTexCoordAttribBindingsBit(stage); |
| 119 drawState->setAttribIndex(GrDrawState::kTexCoord_AttribIndex, attribs.co
unt()); | 121 drawState->setAttribIndex(GrDrawState::kTexCoord_AttribIndex, attribs.co
unt()); |
| 120 attribs.push_back(GrVertexAttrib(kVec2f_GrVertexAttribType, currentOffse
t)); | 122 currAttrib.set(kVec2f_GrVertexAttribType, currentOffset); |
| 123 attribs.push_back(currAttrib); |
| 121 texOffset = currentOffset; | 124 texOffset = currentOffset; |
| 122 currentOffset += sizeof(GrPoint); | 125 currentOffset += sizeof(GrPoint); |
| 123 explicitCoordMask = (1 << stage); | 126 explicitCoordMask = (1 << stage); |
| 124 } | 127 } |
| 125 | 128 |
| 126 drawState->setVertexAttribs(attribs.begin(), attribs.count()); | 129 drawState->setVertexAttribs(attribs.begin(), attribs.count()); |
| 127 drawState->setAttribBindings(bindings); | 130 drawState->setAttribBindings(bindings); |
| 128 AutoReleaseGeometry geo(this, 4, 0); | 131 AutoReleaseGeometry geo(this, 4, 0); |
| 129 if (!geo.succeeded()) { | 132 if (!geo.succeeded()) { |
| 130 GrPrintf("Failed to get space for vertices!\n"); | 133 GrPrintf("Failed to get space for vertices!\n"); |
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| 760 GrInOrderDrawBuffer::Clear* GrInOrderDrawBuffer::recordClear() { | 763 GrInOrderDrawBuffer::Clear* GrInOrderDrawBuffer::recordClear() { |
| 761 fCmds.push_back(kClear_Cmd); | 764 fCmds.push_back(kClear_Cmd); |
| 762 return &fClears.push_back(); | 765 return &fClears.push_back(); |
| 763 } | 766 } |
| 764 | 767 |
| 765 void GrInOrderDrawBuffer::clipWillBeSet(const GrClipData* newClipData) { | 768 void GrInOrderDrawBuffer::clipWillBeSet(const GrClipData* newClipData) { |
| 766 INHERITED::clipWillBeSet(newClipData); | 769 INHERITED::clipWillBeSet(newClipData); |
| 767 fClipSet = true; | 770 fClipSet = true; |
| 768 fClipProxyState = kUnknown_ClipProxyState; | 771 fClipProxyState = kUnknown_ClipProxyState; |
| 769 } | 772 } |
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