aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/PrimitiveProcessorTest.cpp
blob: acaf9e98afb30e8d46e1a1a8e5636954e3efec73 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

// This is a GPU-backend specific test. It relies on static intializers to work

#include "SkTypes.h"
#include "Test.h"

#if SK_SUPPORT_GPU
#include "GrBatchFlushState.h"
#include "GrDrawContext.h"
#include "GrDrawContextPriv.h"
#include "GrContext.h"
#include "GrGeometryProcessor.h"
#include "GrGpu.h"
#include "GrTextureProvider.h"
#include "glsl/GrGLSLGeometryProcessor.h"
#include "glsl/GrGLSLVarying.h"
#include "batches/GrVertexBatch.h"
#include "SkString.h"

namespace {
class Batch : public GrVertexBatch {
public:
    DEFINE_BATCH_CLASS_ID

    const char* name() const override { return "Dummy Batch"; }
    void computePipelineOptimizations(GrInitInvariantOutput* color,
                                      GrInitInvariantOutput* coverage,
                                      GrBatchToXPOverrides* overrides) const override {
        color->setUnknownFourComponents();
        coverage->setUnknownSingleComponent();
    }

    void initBatchTracker(const GrXPOverridesForBatch& overrides) override {}

    Batch(int numAttribs)
        : INHERITED(ClassID())
        , fNumAttribs(numAttribs) {
        this->setBounds(SkRect::MakeWH(1.f, 1.f), HasAABloat::kNo, IsZeroArea::kNo);
    }

private:
    bool onCombineIfPossible(GrBatch*, const GrCaps&) override { return false; }
    void onPrepareDraws(Target* target) const override {
        class GP : public GrGeometryProcessor {
        public:
            GP(int numAttribs) {
                this->initClassID<GP>();
                SkASSERT(numAttribs > 1);
                for (auto i = 0; i < numAttribs; ++i) {
                    fAttribNames.push_back().printf("attr%d", i);
                }
                for (auto i = 0; i < numAttribs; ++i) {
                    Attribute attribute;
                    attribute.fType = kVec2f_GrVertexAttribType;
                    attribute.fName = fAttribNames[i].c_str();
                    attribute.fOffset = 2 * sizeof(float) * i;
                    attribute.fPrecision = kDefault_GrSLPrecision;
                    this->addVertexAttrib(attribute);
                }
            };
            const char* name() const override { return "Dummy GP"; }

            GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const override {
                class GLSLGP : public GrGLSLGeometryProcessor {
                public:
                    void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
                        const GP& gp = args.fGP.cast<GP>();
                        args.fVaryingHandler->emitAttributes(gp);
                        this->setupPosition(args.fVertBuilder, gpArgs, gp.fAttribs[0].fName);
                    }
                    void setData(const GrGLSLProgramDataManager& pdman,
                                 const GrPrimitiveProcessor& primProc) override {}
                };
                return new GLSLGP();
            }
            void getGLSLProcessorKey(const GrGLSLCaps&,
                                     GrProcessorKeyBuilder* builder) const override {
                builder->add32(this->numAttribs());
            }

        private:
            SkTArray<SkString> fAttribNames;
        };
        SkAutoTUnref<GrGeometryProcessor> gp(new GP(fNumAttribs));
        QuadHelper helper;
        size_t vertexStride = gp->getVertexStride();
        SkPoint* vertices = reinterpret_cast<SkPoint*>(helper.init(target, vertexStride, 1));
        vertices->setRectFan(0.f, 0.f, 1.f, 1.f, vertexStride);
        helper.recordDraw(target, gp);
    }

    int fNumAttribs;

    typedef GrVertexBatch INHERITED;
};
}

DEF_GPUTEST_FOR_ALL_CONTEXTS(VertexAttributeCount, reporter, ctxInfo) {
    GrContext* context = ctxInfo.grContext();

    sk_sp<GrDrawContext> drawContext(context->newDrawContext(SkBackingFit::kApprox,
                                                             1, 1, kRGBA_8888_GrPixelConfig,
                                                             nullptr));
    if (!drawContext) {
        ERRORF(reporter, "Could not create draw context.");
        return;
    }
    int attribCnt = context->caps()->maxVertexAttributes();
    if (!attribCnt) {
        ERRORF(reporter, "No attributes allowed?!");
        return;
    }
    context->flush();
    context->resetGpuStats();
#if GR_GPU_STATS
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numDraws() == 0);
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numFailedDraws() == 0);
#endif
    SkAutoTUnref<GrDrawBatch> batch;
    GrPaint grPaint;
    // This one should succeed.
    batch.reset(new Batch(attribCnt));
    drawContext->drawContextPriv().testingOnly_drawBatch(grPaint, batch);
    context->flush();
#if GR_GPU_STATS
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numDraws() == 1);
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numFailedDraws() == 0);
#endif
    context->resetGpuStats();
    // This one should fail.
    batch.reset(new Batch(attribCnt+1));
    drawContext->drawContextPriv().testingOnly_drawBatch(grPaint, batch);
    context->flush();
#if GR_GPU_STATS
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numDraws() == 0);
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numFailedDraws() == 1);
#endif
}
#endif