Introduce dynamic pipeline state

Adds a DynamicState struct to GrPipeline that has a field for the
scissor rect. Eventually this should become the only way to specify a
scissor rectangle and may grow to contain more fields. Adds an array of
DynamicStates to GrGpuCommandBuffer::draw and implements support in GL
and Vulkan.

Bug: skia:
Change-Id: If5aebbf9da5d192acf7e68e7def4674ffc7ec310
Reviewed-on: https://skia-review.googlesource.com/18510
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gpu/GrGpuCommandBuffer.cpp b/src/gpu/GrGpuCommandBuffer.cpp
index 5570a5a65e..9659ca3b9a 100644
--- a/src/gpu/GrGpuCommandBuffer.cpp
+++ b/src/gpu/GrGpuCommandBuffer.cpp
@@ -39,6 +39,7 @@ void GrGpuCommandBuffer::clearStencilClip(GrRenderTarget* rt, const GrFixedClip&
 bool GrGpuCommandBuffer::draw(const GrPipeline& pipeline,
                               const GrPrimitiveProcessor& primProc,
                               const GrMesh meshes[],
+                              const GrPipeline::DynamicState dynamicStates[],
                               int meshCount,
                               const SkRect& bounds) {
 #ifdef SK_DEBUG
@@ -58,7 +59,7 @@ bool GrGpuCommandBuffer::draw(const GrPipeline& pipeline,
         this->gpu()->stats()->incNumFailedDraws();
         return false;
     }
-    this->onDraw(pipeline, primProc, meshes, meshCount, bounds);
+    this->onDraw(pipeline, primProc, meshes, dynamicStates, meshCount, bounds);
     return true;
 }