bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "GrVertexBatch.h" |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 9 | #include "GrBatchFlushState.h" |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 10 | #include "GrResourceProvider.h" |
| 11 | |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 12 | GrVertexBatch::GrVertexBatch() : fDrawArrays(1) {} |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 13 | |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 14 | void GrVertexBatch::prepareDraws(GrBatchFlushState* state) { |
| 15 | Target target(state, this); |
| 16 | this->onPrepareDraws(&target); |
| 17 | } |
| 18 | |
| 19 | void* GrVertexBatch::InstancedHelper::init(Target* target, GrPrimitiveType primType, |
| 20 | size_t vertexStride, const GrIndexBuffer* indexBuffer, |
| 21 | int verticesPerInstance, int indicesPerInstance, |
| 22 | int instancesToDraw) { |
| 23 | SkASSERT(target); |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 24 | if (!indexBuffer) { |
| 25 | return NULL; |
| 26 | } |
| 27 | const GrVertexBuffer* vertexBuffer; |
| 28 | int firstVertex; |
| 29 | int vertexCount = verticesPerInstance * instancesToDraw; |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 30 | void* vertices = target->makeVertexSpace(vertexStride, vertexCount, &vertexBuffer, &firstVertex); |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 31 | if (!vertices) { |
| 32 | SkDebugf("Vertices could not be allocated for instanced rendering."); |
| 33 | return NULL; |
| 34 | } |
| 35 | SkASSERT(vertexBuffer); |
| 36 | size_t ibSize = indexBuffer->gpuMemorySize(); |
| 37 | int maxInstancesPerDraw = static_cast<int>(ibSize / (sizeof(uint16_t) * indicesPerInstance)); |
| 38 | |
| 39 | fVertices.initInstanced(primType, vertexBuffer, indexBuffer, |
| 40 | firstVertex, verticesPerInstance, indicesPerInstance, instancesToDraw, |
| 41 | maxInstancesPerDraw); |
| 42 | return vertices; |
| 43 | } |
| 44 | |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 45 | void GrVertexBatch::InstancedHelper::recordDraw(Target* target) { |
| 46 | SkASSERT(fVertices.instanceCount()); |
| 47 | target->draw(fVertices); |
| 48 | } |
| 49 | |
| 50 | void* GrVertexBatch::QuadHelper::init(Target* target, size_t vertexStride, |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 51 | int quadsToDraw) { |
| 52 | SkAutoTUnref<const GrIndexBuffer> quadIndexBuffer( |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 53 | target->resourceProvider()->refQuadIndexBuffer()); |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 54 | if (!quadIndexBuffer) { |
| 55 | SkDebugf("Could not get quad index buffer."); |
| 56 | return NULL; |
| 57 | } |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 58 | return this->INHERITED::init(target, kTriangles_GrPrimitiveType, vertexStride, |
bsalomon | 16b9913 | 2015-08-13 14:55:50 -0700 | [diff] [blame] | 59 | quadIndexBuffer, kVerticesPerQuad, kIndicesPerQuad, quadsToDraw); |
| 60 | } |
bsalomon | 7539856 | 2015-08-17 12:55:38 -0700 | [diff] [blame^] | 61 | |
| 62 | void GrVertexBatch::issueDraws(GrBatchFlushState* state) { |
| 63 | int uploadCnt = fInlineUploads.count(); |
| 64 | int currUpload = 0; |
| 65 | |
| 66 | // Iterate of all the drawArrays. Before issuing the draws in each array, perform any inline |
| 67 | // uploads. |
| 68 | for (SkTLList<DrawArray>::Iter da(fDrawArrays); da.get(); da.next()) { |
| 69 | state->advanceLastFlushedToken(); |
| 70 | while (currUpload < uploadCnt && |
| 71 | fInlineUploads[currUpload]->lastUploadToken() <= state->lastFlushedToken()) { |
| 72 | fInlineUploads[currUpload++]->upload(state->uploader()); |
| 73 | } |
| 74 | const GrVertexBatch::DrawArray& drawArray = *da.get(); |
| 75 | GrProgramDesc desc; |
| 76 | const GrPipeline* pipeline = this->pipeline(); |
| 77 | const GrPrimitiveProcessor* primProc = drawArray.fPrimitiveProcessor.get(); |
| 78 | state->gpu()->buildProgramDesc(&desc, *primProc, *pipeline, fBatchTracker); |
| 79 | GrGpu::DrawArgs args(primProc, pipeline, &desc, &fBatchTracker); |
| 80 | |
| 81 | int drawCount = drawArray.fDraws.count(); |
| 82 | for (int i = 0; i < drawCount; i++) { |
| 83 | state->gpu()->draw(args, drawArray.fDraws[i]); |
| 84 | } |
| 85 | } |
| 86 | } |