Update how we send draws to gpu backend to reduce state setting.

The main change here is that we pull primitive type off of the vertices, we set the gpu state on gpu once per pipeline/prim proc draw batch, and we create the ProgramDescriptor only for the Cache/ProgramBuilder.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1806983002

Review URL: https://codereview.chromium.org/1806983002

1 files changed, 7 insertions, 12 deletions

diff --git a/src/gpu/batches/GrVertexBatch.cpp b/src/gpu/batches/GrVertexBatch.cpp
index 5897fe95c4..17bcf8e3af 100644
--- a/src/gpu/batches/GrVertexBatch.cpp
+++ b/src/gpu/batches/GrVertexBatch.cpp
@@ -36,15 +36,15 @@ void* GrVertexBatch::InstancedHelper::init(Target* target, GrPrimitiveType primT
     size_t ibSize = indexBuffer->gpuMemorySize();
     int maxInstancesPerDraw = static_cast<int>(ibSize / (sizeof(uint16_t) * indicesPerInstance));
 
-    fVertices.initInstanced(primType, vertexBuffer, indexBuffer,
+    fMesh.initInstanced(primType, vertexBuffer, indexBuffer,
         firstVertex, verticesPerInstance, indicesPerInstance, instancesToDraw,
         maxInstancesPerDraw);
     return vertices;
 }
 
 void GrVertexBatch::InstancedHelper::recordDraw(Target* target) {
-    SkASSERT(fVertices.instanceCount());
-    target->draw(fVertices);
+    SkASSERT(fMesh.instanceCount());
+    target->draw(fMesh);
 }
 
 void* GrVertexBatch::QuadHelper::init(Target* target, size_t vertexStride,
@@ -72,15 +72,10 @@ void GrVertexBatch::onDraw(GrBatchFlushState* state) {
             fInlineUploads[currUpload++]->upload(state->uploader());
         }
         const GrVertexBatch::DrawArray& drawArray = *da.get();
-        GrProgramDesc desc;
-        const GrPipeline* pipeline = this->pipeline();
-        const GrPrimitiveProcessor* primProc = drawArray.fPrimitiveProcessor.get();
-        state->gpu()->buildProgramDesc(&desc, *primProc, *pipeline);
-        GrGpu::DrawArgs args(primProc, pipeline, &desc);
 
-        int drawCount = drawArray.fDraws.count();
-        for (int i = 0; i < drawCount; i++) {
-            state->gpu()->draw(args,  drawArray.fDraws[i]);
-        }
+        state->gpu()->draw(*this->pipeline(),
+                           *drawArray.fPrimitiveProcessor.get(),
+                           drawArray.fDraws.begin(),
+                           drawArray.fDraws.count());
     }
 }