Split GrTargetCommands into its own files

src/gpu/GrTargetCommands.h

Index: src/gpu/GrTargetCommands.h
diff --git a/src/gpu/GrInOrderDrawBuffer.h b/src/gpu/GrTargetCommands.h
similarity index 61%
copy from src/gpu/GrInOrderDrawBuffer.h
copy to src/gpu/GrTargetCommands.h
index 1100d95a9c04fbb0fcf00c602e30e6804dca10c2..b89f581b4a77993c4884b2014c46077bfa2f96b3 100644
--- a/src/gpu/GrInOrderDrawBuffer.h
+++ b/src/gpu/GrTargetCommands.h
@@ -1,23 +1,26 @@
 /*
- * Copyright 2011 Google Inc.
+ * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#ifndef GrInOrderDrawBuffer_DEFINED
-#define GrInOrderDrawBuffer_DEFINED
+#ifndef GrTargetCommands_DEFINED
+#define GrTargetCommands_DEFINED
 
-#include "GrFlushToGpuDrawTarget.h"
-
-#include "GrBatch.h"
 #include "GrBatchTarget.h"
-#include "SkChunkAlloc.h"
-#include "GrPipeline.h"
+#include "GrDrawTarget.h"
+#include "GrGpu.h"
 #include "GrPath.h"
+#include "GrPendingProgramElement.h"
+#include "GrRenderTarget.h"
 #include "GrTRecorder.h"
+#include "SkRect.h"
+#include "SkTypes.h"
 
 class GrInOrderDrawBuffer;
+class GrVertexBufferAllocPool;
+class GrIndexBufferAllocPool;
 
 class GrTargetCommands : ::SkNoncopyable {
     struct SetState;
@@ -302,155 +305,5 @@ private:
      void closeBatch();
 };
 
-/**
- * GrInOrderDrawBuffer is an implementation of GrDrawTarget that queues up draws for eventual
- * playback into a GrGpu. In theory one draw buffer could playback into another. When index or
- * vertex buffers are used as geometry sources it is the callers the draw buffer only holds
- * references to the buffers. It is the callers responsibility to ensure that the data is still
- * valid when the draw buffer is played back into a GrGpu. Similarly, it is the caller's
- * responsibility to ensure that all referenced textures, buffers, and render-targets are associated
- * in the GrGpu object that the buffer is played back into. The buffer requires VB and IB pools to
- * store geometry.
- */
-class GrInOrderDrawBuffer : public GrFlushToGpuDrawTarget {
-public:
-
-    /**
-     * Creates a GrInOrderDrawBuffer
-     *
-     * @param gpu        the gpu object that this draw buffer flushes to.
-     * @param vertexPool pool where vertices for queued draws will be saved when
-     *                   the vertex source is either reserved or array.
-     * @param indexPool  pool where indices for queued draws will be saved when
-     *                   the index source is either reserved or array.
-     */
-    GrInOrderDrawBuffer(GrGpu* gpu,
-                        GrVertexBufferAllocPool* vertexPool,
-                        GrIndexBufferAllocPool* indexPool);
-
-    ~GrInOrderDrawBuffer() SK_OVERRIDE;
-
-    // tracking for draws
-    DrawToken getCurrentDrawToken() SK_OVERRIDE { return DrawToken(this, fDrawID); }
-
-    void clearStencilClip(const SkIRect& rect,
-                          bool insideClip,
-                          GrRenderTarget* renderTarget) SK_OVERRIDE;
-
-    void discard(GrRenderTarget*) SK_OVERRIDE;
-
-protected:
-    void willReserveVertexAndIndexSpace(int vertexCount,
-                                        size_t vertexStride,
-                                        int indexCount) SK_OVERRIDE;
-
-    void appendIndicesAndTransforms(const void* indexValues, PathIndexType indexType, 
-                                    const float* transformValues, PathTransformType transformType,
-                                    int count, char** indicesLocation, float** xformsLocation) {
-        int indexBytes = GrPathRange::PathIndexSizeInBytes(indexType);
-        *indicesLocation = (char*) fPathIndexBuffer.alloc(count * indexBytes,
-                                                          SkChunkAlloc::kThrow_AllocFailType);
-        SkASSERT(SkIsAlign4((uintptr_t)*indicesLocation));
-        memcpy(*indicesLocation, reinterpret_cast<const char*>(indexValues), count * indexBytes);
-
-        const int xformBytes = GrPathRendering::PathTransformSize(transformType) * sizeof(float);
-        *xformsLocation = NULL;
-
-        if (0 != xformBytes) {
-            *xformsLocation = (float*) fPathTransformBuffer.alloc(count * xformBytes,
-                                                               SkChunkAlloc::kThrow_AllocFailType);
-            SkASSERT(SkIsAlign4((uintptr_t)*xformsLocation));
-            memcpy(*xformsLocation, transformValues, count * xformBytes);
-        }
-    }
-
-    bool canConcatToIndexBuffer(const GrIndexBuffer** ib) {
-        const GrDrawTarget::GeometrySrcState& geomSrc = this->getGeomSrc();
-
-        // we only attempt to concat when reserved verts are used with a client-specified
-        // index buffer. To make this work with client-specified VBs we'd need to know if the VB
-        // was updated between draws.
-        if (kReserved_GeometrySrcType != geomSrc.fVertexSrc ||
-            kBuffer_GeometrySrcType != geomSrc.fIndexSrc) {
-            return false;
-        }
-
-        *ib = geomSrc.fIndexBuffer;
-        return true;
-    }
-
-private:
-    friend class GrTargetCommands;
-
-    typedef GrGpu::DrawArgs DrawArgs;
-
-    void onReset() SK_OVERRIDE;
-    void onFlush() SK_OVERRIDE;
-
-    // overrides from GrDrawTarget
-    void onDraw(const GrGeometryProcessor*, const DrawInfo&, const PipelineInfo&) SK_OVERRIDE;
-    void onDrawBatch(GrBatch*, const PipelineInfo&) SK_OVERRIDE;
-    void onDrawRect(GrPipelineBuilder*,
-                    GrColor,
-                    const SkMatrix& viewMatrix,
-                    const SkRect& rect,
-                    const SkRect* localRect,
-                    const SkMatrix* localMatrix) SK_OVERRIDE;
-
-    void onStencilPath(const GrPipelineBuilder&,
-                       const GrPathProcessor*,
-                       const GrPath*,
-                       const GrScissorState&,
-                       const GrStencilSettings&) SK_OVERRIDE;
-    void onDrawPath(const GrPathProcessor*,
-                    const GrPath*,
-                    const GrStencilSettings&,
-                    const PipelineInfo&) SK_OVERRIDE;
-    void onDrawPaths(const GrPathProcessor*,
-                     const GrPathRange*,
-                     const void* indices,
-                     PathIndexType,
-                     const float transformValues[],
-                     PathTransformType,
-                     int count,
-                     const GrStencilSettings&,
-                     const PipelineInfo&) SK_OVERRIDE;
-    void onClear(const SkIRect* rect,
-                 GrColor color,
-                 bool canIgnoreRect,
-                 GrRenderTarget* renderTarget) SK_OVERRIDE;
-    bool onCopySurface(GrSurface* dst,
-                       GrSurface* src,
-                       const SkIRect& srcRect,
-                       const SkIPoint& dstPoint) SK_OVERRIDE;
-
-    // Attempts to concat instances from info onto the previous draw. info must represent an
-    // instanced draw. The caller must have already recorded a new draw state and clip if necessary.
-    int concatInstancedDraw(const DrawInfo&);
-
-    // We lazily record clip changes in order to skip clips that have no effect.
-    void recordClipIfNecessary();
-    // Records any trace markers for a command
-    void recordTraceMarkersIfNecessary(GrTargetCommands::Cmd*);
-    SkString getCmdString(int index) const {
-        SkASSERT(index < fGpuCmdMarkers.count());
-        return fGpuCmdMarkers[index].toString();
-    }
-    bool isIssued(uint32_t drawID) SK_OVERRIDE { return drawID != fDrawID; }
-
-    // TODO: Use a single allocator for commands and records
-    enum {
-        kPathIdxBufferMinReserve     = 2 * 64,  // 64 uint16_t's
-        kPathXformBufferMinReserve   = 2 * 64,  // 64 two-float transforms
-    };
-
-    GrTargetCommands                    fCommands;
-    SkTArray<GrTraceMarkerSet, false>   fGpuCmdMarkers;
-    SkChunkAlloc                        fPathIndexBuffer;
-    SkChunkAlloc                        fPathTransformBuffer;
-    uint32_t                            fDrawID;
-
-    typedef GrFlushToGpuDrawTarget INHERITED;
-};
-
 #endif
+