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authorPaul Berry <[email protected]>2012-10-30 16:21:18 -0700
committerPaul Berry <[email protected]>2012-11-06 12:57:45 -0800
commit38a1039a427d73ad959cc978d44fcf8c21388868 (patch)
treedd02f5e0840b50c3efa162da66c2ceec45028fe0 /src/mesa/main/.gitignore
parent679df028e757613ddc5a9e84f3c5289c941369da (diff)
glapi/gen: Add code generation script for _mesa_create_exec_table().
This script generates the file api_exec.c, which contains just the function _mesa_create_exec_table(), based on the XML files in src/mapi/glapi/gen. The following XML attributes, in particular, are used: - "es1" indicates functions that should be available in ES1 contexts. - "es2" indicates functions that should be available in ES2/ES3 contexts. - "exec" indicates which Mesa function should be dispatched to. E.g. if the GL function is glFoo(), then: - exec="mesa" (the default) dispatches to _mesa_Foo(). - exec="check" dispatches to _check_Foo(). - exec="es" dispatches to _es_Foo(). - exec="loopback" dispatches to loopback_Foo(). - exec="skip" or exec="dynamic" causes this function to be skipped; either it is not yet supported ("skip"), or its dispatch table entry will be dynamically populated based on GL state ("dynamic"). - "desktop" indicates functions that should be available in desktop GL (non-ES) contexts. - "deprecated" indicates functions that should not be available in core contexts. - "mesa_name" indicates functions whose implementation in Mesa has a different suffix than the corresponding GL function name. The generated code looks roughly like this (showing just a single statement in each block for brevity): struct _glapi_table * _mesa_create_exec_table(struct gl_context *ctx) { struct _glapi_table *exec; exec = _mesa_alloc_dispatch_table(_gloffset_COUNT); if (exec == NULL) return NULL; if (_mesa_is_desktop_gl(ctx)) { SET_ActiveProgramEXT(exec, _mesa_ActiveProgramEXT); /* other functions not shown */ } if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { SET_BeginQueryARB(exec, _mesa_BeginQueryARB); /* other functions not shown */ } if (_mesa_is_desktop_gl(ctx) || ctx->API == API_OPENGLES) { SET_GetPointerv(exec, _mesa_GetPointerv); /* other functions not shown */ } if (_mesa_is_desktop_gl(ctx) || ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2) { SET_ActiveTextureARB(exec, _mesa_ActiveTextureARB); /* other functions not shown */ } if (_mesa_is_desktop_gl(ctx) || ctx->API == API_OPENGLES2) { SET_AttachShader(exec, _mesa_AttachShader); /* other functions not shown */ } if (ctx->API == API_OPENGL) { SET_Accum(exec, _mesa_Accum); /* other functions not shown */ } if (ctx->API == API_OPENGL || ctx->API == API_OPENGLES) { SET_AlphaFunc(exec, _mesa_AlphaFunc); /* other functions not shown */ } if (ctx->API == API_OPENGLES) { SET_AlphaFuncxOES(exec, _es_AlphaFuncx); /* other functions not shown */ } return exec; } Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/mesa/main/.gitignore')
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