Move GrGpuGL::programUnitTest into its own file

Review URL: http://codereview.appspot.com/6272043/




git-svn-id: http://skia.googlecode.com/svn/trunk@4124 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL.cpp b/src/gpu/gl/GrGpuGL.cpp
index 7b44035..004702f 100644
--- a/src/gpu/gl/GrGpuGL.cpp
+++ b/src/gpu/gl/GrGpuGL.cpp
@@ -174,10 +174,6 @@
     fProgramData = NULL;
     fProgramCache = new ProgramCache(this->glContextInfo());
 
-#if 0
-    this->programUnitTest();
-#endif
-
     fLastSuccessfulStencilFmtIdx = 0;
     fCanPreserveUnpremulRoundtrip = kUnknown_CanPreserveUnpremulRoundtrip;
 }
diff --git a/src/gpu/gl/GrGpuGL_program.cpp b/src/gpu/gl/GrGpuGL_program.cpp
index c349407..afbe809 100644
--- a/src/gpu/gl/GrGpuGL_program.cpp
+++ b/src/gpu/gl/GrGpuGL_program.cpp
@@ -7,17 +7,9 @@
 
 #include "GrGpuGL.h"
 
-#include "effects/GrConvolutionEffect.h"
-#include "effects/GrMorphologyEffect.h"
-
 #include "GrCustomStage.h"
 #include "GrGLProgramStage.h"
-#include "GrGLSL.h"
 #include "GrGpuVertex.h"
-#include "GrNoncopyable.h"
-#include "GrProgramStageFactory.h"
-#include "GrRandom.h"
-#include "GrStringBuilder.h"
 
 #define SKIP_CACHE_CHECK    true
 #define GR_UINT32_MAX   static_cast<uint32_t>(-1)
@@ -116,221 +108,6 @@
 
 #define GL_CALL(X) GR_GL_CALL(this->glInterface(), X)
 
-namespace {
-
-// GrRandoms nextU() values have patterns in the low bits
-// So using nextU() % array_count might never take some values.
-int random_int(GrRandom* r, int count) {
-    return (int)(r->nextF() * count);
-}
-
-// min is inclusive, max is exclusive
-int random_int(GrRandom* r, int min, int max) {
-    return (int)(r->nextF() * (max-min)) + min;
-}
-
-bool random_bool(GrRandom* r) {
-    return r->nextF() > .5f;
-}
-
-typedef GrGLProgram::StageDesc StageDesc;
-// TODO: Effects should be able to register themselves for inclusion in the
-// randomly generated shaders. They should be able to configure themselves
-// randomly.
-GrCustomStage* create_random_effect(StageDesc* stageDesc,
-                                    GrRandom* random) {
-    enum EffectType {
-        kConvolution_EffectType,
-        kErode_EffectType,
-        kDilate_EffectType,
-
-        kEffectCount
-    };
-
-    // TODO: Remove this when generator doesn't apply this non-custom-stage
-    // notion to custom stages automatically.
-    static const uint32_t kMulByAlphaMask =
-        StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag |
-        StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag;
-
-    static const Gr1DKernelEffect::Direction gKernelDirections[] = {
-        Gr1DKernelEffect::kX_Direction,
-        Gr1DKernelEffect::kY_Direction
-    };
-
-    // TODO: When matrices are property of the custom-stage then remove the
-    // no-persp flag code below.
-    int effect = random_int(random, kEffectCount);
-    switch (effect) {
-        case kConvolution_EffectType: {
-            int direction = random_int(random, 2);
-            int kernelRadius = random_int(random, 1, 4);
-            float kernel[GrConvolutionEffect::kMaxKernelWidth];
-            for (int i = 0; i < GrConvolutionEffect::kMaxKernelWidth; i++) {
-                kernel[i] = random->nextF();
-            }
-            // does not work with perspective or mul-by-alpha-mask
-            stageDesc->fOptFlags |= StageDesc::kNoPerspective_OptFlagBit;
-            stageDesc->fInConfigFlags &= ~kMulByAlphaMask;
-            return new GrConvolutionEffect(gKernelDirections[direction],
-                                           kernelRadius,
-                                           kernel);
-            }
-        case kErode_EffectType: {
-            int direction = random_int(random, 2);
-            int kernelRadius = random_int(random, 1, 4);
-            // does not work with perspective or mul-by-alpha-mask
-            stageDesc->fOptFlags |= StageDesc::kNoPerspective_OptFlagBit;
-            stageDesc->fInConfigFlags &= ~kMulByAlphaMask;
-            return new GrMorphologyEffect(gKernelDirections[direction],
-                                          kernelRadius,
-                                          GrContext::kErode_MorphologyType);
-            }
-        case kDilate_EffectType: {
-            int direction = random_int(random, 2);
-            int kernelRadius = random_int(random, 1, 4);
-            // does not work with perspective or mul-by-alpha-mask
-            stageDesc->fOptFlags |= StageDesc::kNoPerspective_OptFlagBit;
-            stageDesc->fInConfigFlags &= ~kMulByAlphaMask;
-            return new GrMorphologyEffect(gKernelDirections[direction],
-                                          kernelRadius,
-                                          GrContext::kDilate_MorphologyType);
-            }
-        default:
-            GrCrash("Unexpected custom effect type");
-    }
-    return NULL;
-}
-
-}
-
-bool GrGpuGL::programUnitTest() {
-
-    GrGLSLGeneration glslGeneration = 
-            GrGetGLSLGeneration(this->glBinding(), this->glInterface());
-    static const int STAGE_OPTS[] = {
-        0,
-        StageDesc::kNoPerspective_OptFlagBit,
-        StageDesc::kIdentity_CoordMapping
-    };
-    static const int IN_CONFIG_FLAGS[] = {
-        StageDesc::kNone_InConfigFlag,
-        StageDesc::kSwapRAndB_InConfigFlag,
-        StageDesc::kSwapRAndB_InConfigFlag |
-        StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag,
-        StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag,
-        StageDesc::kSmearAlpha_InConfigFlag,
-        StageDesc::kSmearRed_InConfigFlag,
-    };
-    GrGLProgram program;
-    ProgramDesc& pdesc = program.fProgramDesc;
-
-    static const int NUM_TESTS = 512;
-
-    GrRandom random;
-    for (int t = 0; t < NUM_TESTS; ++t) {
-
-#if 0
-        GrPrintf("\nTest Program %d\n-------------\n", t);
-        static const int stop = -1;
-        if (t == stop) {
-            int breakpointhere = 9;
-        }
-#endif
-
-        pdesc.fVertexLayout = 0;
-        pdesc.fEmitsPointSize = random.nextF() > .5f;
-        pdesc.fColorInput = random_int(&random, ProgramDesc::kColorInputCnt);
-        pdesc.fCoverageInput = random_int(&random, ProgramDesc::kColorInputCnt);
-
-        pdesc.fColorFilterXfermode = random_int(&random, SkXfermode::kCoeffModesCnt);
-
-        pdesc.fFirstCoverageStage = random_int(&random, GrDrawState::kNumStages);
-
-        pdesc.fVertexLayout |= random_bool(&random) ?
-                                    GrDrawTarget::kCoverage_VertexLayoutBit :
-                                    0;
-
-#if GR_GL_EXPERIMENTAL_GS
-        pdesc.fExperimentalGS = this->getCaps().fGeometryShaderSupport &&
-                                random_bool(&random);
-#endif
-        pdesc.fOutputConfig =  random_int(&random, ProgramDesc::kOutputConfigCnt);
-
-        bool edgeAA = random_bool(&random);
-        if (edgeAA) {
-            pdesc.fVertexLayout |= GrDrawTarget::kEdge_VertexLayoutBit;
-            if (this->getCaps().fShaderDerivativeSupport) {
-                pdesc.fVertexEdgeType = (GrDrawState::VertexEdgeType) random_int(&random, GrDrawState::kVertexEdgeTypeCnt);
-            } else {
-                pdesc.fVertexEdgeType = GrDrawState::kHairLine_EdgeType;
-            }
-        } else {
-        }
-
-        pdesc.fColorMatrixEnabled = random_bool(&random);
-
-        if (this->getCaps().fDualSourceBlendingSupport) {
-            pdesc.fDualSrcOutput = random_int(&random, ProgramDesc::kDualSrcOutputCnt);
-        } else {
-            pdesc.fDualSrcOutput = ProgramDesc::kNone_DualSrcOutput;
-        }
-
-        SkAutoTUnref<GrCustomStage> customStages[GrDrawState::kNumStages];
-
-        for (int s = 0; s < GrDrawState::kNumStages; ++s) {
-            // enable the stage?
-            if (random_bool(&random)) {
-                // use separate tex coords?
-                if (random_bool(&random)) {
-                    int t = random_int(&random, GrDrawState::kMaxTexCoords);
-                    pdesc.fVertexLayout |= StageTexCoordVertexLayoutBit(s, t);
-                } else {
-                    pdesc.fVertexLayout |= StagePosAsTexCoordVertexLayoutBit(s);
-                }
-            }
-            // use text-formatted verts?
-            if (random_bool(&random)) {
-                pdesc.fVertexLayout |= kTextFormat_VertexLayoutBit;
-            }
-            StageDesc& stage = pdesc.fStages[s];
-
-            stage.fCustomStageKey = 0;
-
-            stage.fOptFlags = STAGE_OPTS[random_int(&random, GR_ARRAY_COUNT(STAGE_OPTS))];
-            stage.fInConfigFlags = IN_CONFIG_FLAGS[random_int(&random, GR_ARRAY_COUNT(IN_CONFIG_FLAGS))];
-            stage.fCoordMapping =  random_int(&random, StageDesc::kCoordMappingCnt);
-            stage.fFetchMode = random_int(&random, StageDesc::kFetchModeCnt);
-            stage.setEnabled(VertexUsesStage(s, pdesc.fVertexLayout));
-            static const uint32_t kMulByAlphaMask =
-                StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag |
-                StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag;
-
-            if (StageDesc::k2x2_FetchMode == stage.fFetchMode) {
-                stage.fInConfigFlags &= ~kMulByAlphaMask;
-            }
-
-            bool useCustomEffect = random_bool(&random);
-            if (useCustomEffect) {
-                customStages[s].reset(create_random_effect(&stage, &random));
-                if (NULL != customStages[s]) {
-                    stage.fCustomStageKey =
-                        customStages[s]->getFactory().glStageKey(*customStages[s]);
-                }
-            }
-        }
-        CachedData cachedData;
-        GR_STATIC_ASSERT(sizeof(customStages) ==
-                         GrDrawState::kNumStages * sizeof(GrCustomStage*));
-        GrCustomStage** stages = reinterpret_cast<GrCustomStage**>(&customStages);
-        if (!program.genProgram(this->glContextInfo(), stages, &cachedData)) {
-            return false;
-        }
-        DeleteProgram(this->glInterface(), &cachedData);
-    }
-    return true;
-}
-
 void GrGpuGL::flushViewMatrix() {
     const GrMatrix& vm = this->getDrawState().getViewMatrix();
     if (!fProgramData->fViewMatrix.cheapEqualTo(vm)) {
diff --git a/src/gpu/gl/GrGpuGL_unittest.cpp b/src/gpu/gl/GrGpuGL_unittest.cpp
new file mode 100644
index 0000000..3f923f7
--- /dev/null
+++ b/src/gpu/gl/GrGpuGL_unittest.cpp
@@ -0,0 +1,220 @@
+#include "GrGpuGL.h"
+
+#include "effects/GrConvolutionEffect.h"
+#include "effects/GrMorphologyEffect.h"
+#include "GrProgramStageFactory.h"
+#include "GrRandom.h"
+
+namespace {
+
+// GrRandoms nextU() values have patterns in the low bits
+// So using nextU() % array_count might never take some values.
+int random_int(GrRandom* r, int count) {
+    return (int)(r->nextF() * count);
+}
+
+// min is inclusive, max is exclusive
+int random_int(GrRandom* r, int min, int max) {
+    return (int)(r->nextF() * (max-min)) + min;
+}
+
+bool random_bool(GrRandom* r) {
+    return r->nextF() > .5f;
+}
+
+typedef GrGLProgram::StageDesc StageDesc;
+// TODO: Effects should be able to register themselves for inclusion in the
+// randomly generated shaders. They should be able to configure themselves
+// randomly.
+GrCustomStage* create_random_effect(StageDesc* stageDesc,
+                                    GrRandom* random) {
+    enum EffectType {
+        kConvolution_EffectType,
+        kErode_EffectType,
+        kDilate_EffectType,
+
+        kEffectCount
+    };
+
+    // TODO: Remove this when generator doesn't apply this non-custom-stage
+    // notion to custom stages automatically.
+    static const uint32_t kMulByAlphaMask =
+        StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag |
+        StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag;
+
+    static const Gr1DKernelEffect::Direction gKernelDirections[] = {
+        Gr1DKernelEffect::kX_Direction,
+        Gr1DKernelEffect::kY_Direction
+    };
+
+    // TODO: When matrices are property of the custom-stage then remove the
+    // no-persp flag code below.
+    int effect = random_int(random, kEffectCount);
+    switch (effect) {
+        case kConvolution_EffectType: {
+            int direction = random_int(random, 2);
+            int kernelRadius = random_int(random, 1, 4);
+            float kernel[GrConvolutionEffect::kMaxKernelWidth];
+            for (int i = 0; i < GrConvolutionEffect::kMaxKernelWidth; i++) {
+                kernel[i] = random->nextF();
+            }
+            // does not work with perspective or mul-by-alpha-mask
+            stageDesc->fOptFlags |= StageDesc::kNoPerspective_OptFlagBit;
+            stageDesc->fInConfigFlags &= ~kMulByAlphaMask;
+            return new GrConvolutionEffect(gKernelDirections[direction],
+                                           kernelRadius,
+                                           kernel);
+            }
+        case kErode_EffectType: {
+            int direction = random_int(random, 2);
+            int kernelRadius = random_int(random, 1, 4);
+            // does not work with perspective or mul-by-alpha-mask
+            stageDesc->fOptFlags |= StageDesc::kNoPerspective_OptFlagBit;
+            stageDesc->fInConfigFlags &= ~kMulByAlphaMask;
+            return new GrMorphologyEffect(gKernelDirections[direction],
+                                          kernelRadius,
+                                          GrContext::kErode_MorphologyType);
+            }
+        case kDilate_EffectType: {
+            int direction = random_int(random, 2);
+            int kernelRadius = random_int(random, 1, 4);
+            // does not work with perspective or mul-by-alpha-mask
+            stageDesc->fOptFlags |= StageDesc::kNoPerspective_OptFlagBit;
+            stageDesc->fInConfigFlags &= ~kMulByAlphaMask;
+            return new GrMorphologyEffect(gKernelDirections[direction],
+                                          kernelRadius,
+                                          GrContext::kDilate_MorphologyType);
+            }
+        default:
+            GrCrash("Unexpected custom effect type");
+    }
+    return NULL;
+}
+}
+
+bool GrGpuGL::programUnitTest() {
+
+    GrGLSLGeneration glslGeneration = 
+            GrGetGLSLGeneration(this->glBinding(), this->glInterface());
+    static const int STAGE_OPTS[] = {
+        0,
+        StageDesc::kNoPerspective_OptFlagBit,
+        StageDesc::kIdentity_CoordMapping
+    };
+    static const int IN_CONFIG_FLAGS[] = {
+        StageDesc::kNone_InConfigFlag,
+        StageDesc::kSwapRAndB_InConfigFlag,
+        StageDesc::kSwapRAndB_InConfigFlag |
+        StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag,
+        StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag,
+        StageDesc::kSmearAlpha_InConfigFlag,
+        StageDesc::kSmearRed_InConfigFlag,
+    };
+    GrGLProgram program;
+    ProgramDesc& pdesc = program.fProgramDesc;
+
+    static const int NUM_TESTS = 512;
+
+    GrRandom random;
+    for (int t = 0; t < NUM_TESTS; ++t) {
+
+#if 0
+        GrPrintf("\nTest Program %d\n-------------\n", t);
+        static const int stop = -1;
+        if (t == stop) {
+            int breakpointhere = 9;
+        }
+#endif
+
+        pdesc.fVertexLayout = 0;
+        pdesc.fEmitsPointSize = random.nextF() > .5f;
+        pdesc.fColorInput = random_int(&random, ProgramDesc::kColorInputCnt);
+        pdesc.fCoverageInput = random_int(&random, ProgramDesc::kColorInputCnt);
+
+        pdesc.fColorFilterXfermode = random_int(&random, SkXfermode::kCoeffModesCnt);
+
+        pdesc.fFirstCoverageStage = random_int(&random, GrDrawState::kNumStages);
+
+        pdesc.fVertexLayout |= random_bool(&random) ?
+                                    GrDrawTarget::kCoverage_VertexLayoutBit :
+                                    0;
+
+#if GR_GL_EXPERIMENTAL_GS
+        pdesc.fExperimentalGS = this->getCaps().fGeometryShaderSupport &&
+                                random_bool(&random);
+#endif
+        pdesc.fOutputConfig =  random_int(&random, ProgramDesc::kOutputConfigCnt);
+
+        bool edgeAA = random_bool(&random);
+        if (edgeAA) {
+            pdesc.fVertexLayout |= GrDrawTarget::kEdge_VertexLayoutBit;
+            if (this->getCaps().fShaderDerivativeSupport) {
+                pdesc.fVertexEdgeType = (GrDrawState::VertexEdgeType) random_int(&random, GrDrawState::kVertexEdgeTypeCnt);
+            } else {
+                pdesc.fVertexEdgeType = GrDrawState::kHairLine_EdgeType;
+            }
+        } else {
+        }
+
+        pdesc.fColorMatrixEnabled = random_bool(&random);
+
+        if (this->getCaps().fDualSourceBlendingSupport) {
+            pdesc.fDualSrcOutput = random_int(&random, ProgramDesc::kDualSrcOutputCnt);
+        } else {
+            pdesc.fDualSrcOutput = ProgramDesc::kNone_DualSrcOutput;
+        }
+
+        SkAutoTUnref<GrCustomStage> customStages[GrDrawState::kNumStages];
+
+        for (int s = 0; s < GrDrawState::kNumStages; ++s) {
+            // enable the stage?
+            if (random_bool(&random)) {
+                // use separate tex coords?
+                if (random_bool(&random)) {
+                    int t = random_int(&random, GrDrawState::kMaxTexCoords);
+                    pdesc.fVertexLayout |= StageTexCoordVertexLayoutBit(s, t);
+                } else {
+                    pdesc.fVertexLayout |= StagePosAsTexCoordVertexLayoutBit(s);
+                }
+            }
+            // use text-formatted verts?
+            if (random_bool(&random)) {
+                pdesc.fVertexLayout |= kTextFormat_VertexLayoutBit;
+            }
+            StageDesc& stage = pdesc.fStages[s];
+
+            stage.fCustomStageKey = 0;
+
+            stage.fOptFlags = STAGE_OPTS[random_int(&random, GR_ARRAY_COUNT(STAGE_OPTS))];
+            stage.fInConfigFlags = IN_CONFIG_FLAGS[random_int(&random, GR_ARRAY_COUNT(IN_CONFIG_FLAGS))];
+            stage.fCoordMapping =  random_int(&random, StageDesc::kCoordMappingCnt);
+            stage.fFetchMode = random_int(&random, StageDesc::kFetchModeCnt);
+            stage.setEnabled(VertexUsesStage(s, pdesc.fVertexLayout));
+            static const uint32_t kMulByAlphaMask =
+                StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag |
+                StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag;
+
+            if (StageDesc::k2x2_FetchMode == stage.fFetchMode) {
+                stage.fInConfigFlags &= ~kMulByAlphaMask;
+            }
+
+            bool useCustomEffect = random_bool(&random);
+            if (useCustomEffect) {
+                customStages[s].reset(create_random_effect(&stage, &random));
+                if (NULL != customStages[s]) {
+                    stage.fCustomStageKey =
+                        customStages[s]->getFactory().glStageKey(*customStages[s]);
+                }
+            }
+        }
+        CachedData cachedData;
+        GR_STATIC_ASSERT(sizeof(customStages) ==
+                         GrDrawState::kNumStages * sizeof(GrCustomStage*));
+        GrCustomStage** stages = reinterpret_cast<GrCustomStage**>(&customStages);
+        if (!program.genProgram(this->glContextInfo(), stages, &cachedData)) {
+            return false;
+        }
+        DeleteProgram(this->glInterface(), &cachedData);
+    }
+    return true;
+}