Remove GP from drawstate, revision of invariant output for GP

tests/GLProgramsTest.cpp

Index: tests/GLProgramsTest.cpp
diff --git a/tests/GLProgramsTest.cpp b/tests/GLProgramsTest.cpp
index 431fc29a05f2f9bbe4ebd04a772c306a71b0a406..2bb2fc4101ed781d0e452cb26ac7f857ed937b85 100644
--- a/tests/GLProgramsTest.cpp
+++ b/tests/GLProgramsTest.cpp
@@ -121,19 +121,14 @@ static GrRenderTarget* random_render_target(GrContext* context,
     return SkRef(texture->asRenderTarget());
 }
 
-static void set_random_gp(GrContext* context,
-                          const GrDrawTargetCaps& caps,
-                          GrDrawState* ds,
-                          SkRandom* random,
-                          GrTexture* dummyTextures[]) {
-    SkAutoTUnref<const GrGeometryProcessor> gp(
-            GrProcessorTestFactory<GrGeometryProcessor>::CreateStage(random,
-                                                                     context,
-                                                                     caps,
-                                                                     dummyTextures));
-    SkASSERT(gp);
-
-    ds->setGeometryProcessor(gp);
+static const GrGeometryProcessor* get_random_gp(GrContext* context,
+                                                const GrDrawTargetCaps& caps,
+                                                SkRandom* random,
+                                                GrTexture* dummyTextures[]) {
+    return GrProcessorTestFactory<GrGeometryProcessor>::CreateStage(random,
+                                                                    context,
+                                                                    caps,
+                                                                    dummyTextures);
 }
 
 static void set_random_color_coverage_stages(GrGpuGL* gpu,
@@ -301,8 +296,9 @@ bool GrDrawTarget::programUnitTest(int maxStages) {
 
         // twiddle drawstate knobs randomly
         bool hasGeometryProcessor = !usePathRendering;
+        const GrGeometryProcessor* gp;
         if (hasGeometryProcessor) {
-            set_random_gp(fContext, gpu->glCaps(), &ds, &random, dummyTextures);
+            gp = get_random_gp(fContext, gpu->glCaps(), &ds, &random, dummyTextures);
         }
         set_random_color_coverage_stages(gpu,
                                          &ds,
@@ -318,18 +314,16 @@ bool GrDrawTarget::programUnitTest(int maxStages) {
         GrDeviceCoordTexture dstCopy;
 
         // TODO take color off the PP when its installed
-        GrColor color = ds.hasGeometryProcessor() ? ds.getGeometryProcessor()->getColor() :
-                                                    GrColor_WHITE;
-        uint8_t coverage = ds.hasGeometryProcessor() ? ds.getGeometryProcessor()->getCoverage() :
-                                                       GrColor_WHITE;
-        if (!this->setupDstReadIfNecessary(&ds, color, coverage, &dstCopy, NULL)) {
+        GrColor color = hasGeometryProcessor ? gp->getColor() : GrColor_WHITE;
+        uint8_t coverage = hasGeometryProcessor ? gp->getCoverage() : GrColor_WHITE;
+        if (!this->setupDstReadIfNecessary(&ds, gp, color, coverage, &dstCopy, NULL)) {
             SkDebugf("Couldn't setup dst read texture");
             return false;
         }
 
         // create optimized draw state, setup readDst texture if required, and build a descriptor
         // and program.  ODS creation can fail, so we have to check
-        GrOptDrawState ods(ds, color, coverage, *gpu->caps(), scissor, &dstCopy, drawType);
+        GrOptDrawState ods(ds, gp, color, coverage, *gpu->caps(), scissor, &dstCopy, drawType);
         if (ods.mustSkip()) {
             continue;
         }