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Merge pull request #2300 from FernandoS27/null-shader

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shader_cache: Permit a Null Shader in case of a bad host_ptr.
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bunnei 2019-04-07 17:58:27 -04:00 committed by GitHub
commit f14328bf0a
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 0 deletions
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18
src/common/assert.h
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@ -57,3 +57,21 @@ __declspec(noinline, noreturn)
#define UNIMPLEMENTED_IF(cond) ASSERT_MSG(!(cond), "Unimplemented code!") #define UNIMPLEMENTED_IF(cond) ASSERT_MSG(!(cond), "Unimplemented code!")
#define UNIMPLEMENTED_IF_MSG(cond, ...) ASSERT_MSG(!(cond), __VA_ARGS__) #define UNIMPLEMENTED_IF_MSG(cond, ...) ASSERT_MSG(!(cond), __VA_ARGS__)
// If the assert is ignored, execute _b_
#define ASSERT_OR_EXECUTE(_a_, _b_) \
do { \
ASSERT(_a_); \
if (!(_a_)) { \
_b_ \
} \
} while (0)
// If the assert is ignored, execute _b_
#define ASSERT_OR_EXECUTE_MSG(_a_, _b_, ...) \
do { \
ASSERT_MSG(_a_, __VA_ARGS__); \
if (!(_a_)) { \
_b_ \
} \
} while (0)

4
src/video_core/renderer_opengl/gl_shader_cache.cpp
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@ -39,6 +39,10 @@ GPUVAddr GetShaderAddress(Maxwell::ShaderProgram program) {
/// Gets the shader program code from memory for the specified address /// Gets the shader program code from memory for the specified address
ProgramCode GetShaderCode(const u8* host_ptr) { ProgramCode GetShaderCode(const u8* host_ptr) {
ProgramCode program_code(VideoCommon::Shader::MAX_PROGRAM_LENGTH); ProgramCode program_code(VideoCommon::Shader::MAX_PROGRAM_LENGTH);
ASSERT_OR_EXECUTE(host_ptr != nullptr, {
std::fill(program_code.begin(), program_code.end(), 0);
return program_code;
});
std::memcpy(program_code.data(), host_ptr, program_code.size() * sizeof(u64)); std::memcpy(program_code.data(), host_ptr, program_code.size() * sizeof(u64));
return program_code; return program_code;
} }