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Infrastructure: Non-functional: Move to rich description of environment.

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This is for input languages, client APIs, code to generate, etc.
This commit is contained in:
John Kessenich 2017-06-23 10:50:22 -06:00
parent 4fbb8cb45e
commit 4be4aebdcd
6 changed files with 191 additions and 34 deletions
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60
glslang/Public/ShaderLang.h
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@ -110,7 +110,44 @@ typedef enum {
EShSourceNone,
EShSourceGlsl,
EShSourceHlsl,
} EShSource; // if EShLanguage were EShStage, this could be EShLanguage instead
} EShSource; // if EShLanguage were EShStage, this could be EShLanguage instead
typedef enum {
EShClientNone,
EShClientVulkan,
EShClientOpenGL,
} EShClient;
typedef enum {
EShTargetNone,
EshTargetSpv,
} EShTargetLanguage;
struct TInputLanguage {
EShSource languageFamily; // redundant information with other input, this one overrides when not EShSourceNone
EShLanguage stage; // redundant information with other input, this one overrides when not EShSourceNone
EShClient dialect;
int dialectVersion; // version of client's language definition, not the client (when not EShClientNone)
};
struct TClient {
EShClient client;
int version; // version of client itself (not the client's input dialect)
};
struct TTarget {
EShTargetLanguage language;
unsigned int version; // the version to target, if SPIR-V, defined by "word 1" of the SPIR-V binary header
};
// All source/client/target versions and settings.
// Can override previous methods of setting, when items are set here.
// Expected to grow, as more are added, rather than growing parameter lists.
struct TEnvironment {
TInputLanguage input; // definition of the input language
TClient client; // what client is the overall compilation being done for?
TTarget target; // what to generate
};
const char* StageName(EShLanguage);
@ -324,6 +361,25 @@ public:
void setNoStorageFormat(bool useUnknownFormat);
void setTextureSamplerTransformMode(EShTextureSamplerTransformMode mode);
// For setting up the environment (initialized in the constructor):
void setEnvInput(EShSource lang, EShLanguage stage, EShClient client, int version)
{
environment.input.languageFamily = lang;
environment.input.stage = stage;
environment.input.dialect = client;
environment.input.dialectVersion = version;
}
void setEnvClient(EShClient client, int version)
{
environment.client.client = client;
environment.client.version = version;
}
void setEnvTarget(EShTargetLanguage lang, unsigned int version)
{
environment.target.language = lang;
environment.target.version = version;
}
// Interface to #include handlers.
//
// To support #include, a client of Glslang does the following:
@ -463,6 +519,8 @@ protected:
// a function in the source string can be renamed FROM this TO the name given in setEntryPoint.
std::string sourceEntryPointName;
TEnvironment environment;
friend class TProgram;
private: