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Add SkSL2Pipeline fuzzer

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Bug: skia:8876
Change-Id: Ib62da438dec493536c7351eb0c4a06a0275833b4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201645
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
This commit is contained in:
Kevin Lubick 2019-03-18 16:20:55 -04:00 committed by Skia Commit-Bot
parent 9412e96455
commit 0f0a7107d3
3 changed files with 55 additions and 0 deletions
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1
BUILD.gn
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@ -2006,6 +2006,7 @@ if (skia_enable_tools) {
"fuzz/oss_fuzz/FuzzRegionSetPath.cpp",
"fuzz/oss_fuzz/FuzzSKSL2GLSL.cpp",
"fuzz/oss_fuzz/FuzzSKSL2Metal.cpp",
"fuzz/oss_fuzz/FuzzSKSL2Pipeline.cpp",
"fuzz/oss_fuzz/FuzzSKSL2SPIRV.cpp",
"fuzz/oss_fuzz/FuzzTextBlobDeserialize.cpp",
"tools/UrlDataManager.cpp",

17
fuzz/FuzzMain.cpp
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@ -57,6 +57,7 @@ static constexpr char g_type_message[] = "How to interpret --bytes, one of:\n"
"skp\n"
"sksl2glsl\n"
"sksl2metal\n"
"sksl2pipeline\n"
"sksl2spirv\n"
#if defined(SK_ENABLE_SKOTTIE)
"skottie_json\n"
@ -85,6 +86,7 @@ static void fuzz_skp(sk_sp<SkData>);
static void fuzz_sksl2glsl(sk_sp<SkData>);
static void fuzz_sksl2metal(sk_sp<SkData>);
static void fuzz_sksl2spirv(sk_sp<SkData>);
static void fuzz_sksl2pipeline(sk_sp<SkData>);
static void fuzz_textblob_deserialize(sk_sp<SkData>);
static void print_api_names();
@ -216,6 +218,10 @@ static int fuzz_file(SkString path, SkString type) {
fuzz_sksl2spirv(bytes);
return 0;
}
if (type.equals("sksl2pipeline")) {
fuzz_sksl2pipeline(bytes);
return 0;
}
if (type.equals("textblob")) {
fuzz_textblob_deserialize(bytes);
return 0;
@ -256,6 +262,7 @@ static std::map<std::string, std::string> cf_map = {
{"sksl2glsl", "sksl2glsl"},
{"sksl2metal", "sksl2metal"},
{"sksl2spirv", "sksl2spirv"},
{"sksl2pipeline", "sksl2pipeline"},
#if defined(SK_ENABLE_SKOTTIE)
{"skottie_json", "skottie_json"},
#endif
@ -741,3 +748,13 @@ static void fuzz_sksl2metal(sk_sp<SkData> bytes) {
SkDebugf("[terminated] Could not compile input to Metal.\n");
}
}
bool FuzzSKSL2Pipeline(sk_sp<SkData> bytes);
static void fuzz_sksl2pipeline(sk_sp<SkData> bytes) {
if (FuzzSKSL2Pipeline(bytes)) {
SkDebugf("[terminated] Success! Compiled input to pipeline stage.\n");
} else {
SkDebugf("[terminated] Could not compile input to pipeline stage.\n");
}
}

37
fuzz/oss_fuzz/FuzzSKSL2Pipeline.cpp Normal file
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@ -0,0 +1,37 @@
/*
* Copyright 2019 Google, LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrShaderCaps.h"
#include "SkSLCompiler.h"
#include "../Fuzz.h"
bool FuzzSKSL2Pipeline(sk_sp<SkData> bytes) {
SkSL::Compiler compiler;
SkSL::String output;
SkSL::Program::Settings settings;
sk_sp<GrShaderCaps> caps = SkSL::ShaderCapsFactory::Default();
settings.fCaps = caps.get();
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
SkSL::Program::kPipelineStage_Kind,
SkSL::String((const char*) bytes->data(),
bytes->size()),
settings);
std::vector<SkSL::Compiler::FormatArg> formatArgs;
if (!program || !compiler.toPipelineStage(*program, &output, &formatArgs)) {
return false;
}
return true;
}
#if defined(IS_FUZZING_WITH_LIBFUZZER)
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
auto bytes = SkData::MakeWithoutCopy(data, size);
FuzzSKSL2Pipeline(bytes);
return 0;
}
#endif