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Diffstat (limited to 'third_party/libepoxy/libepoxy/src/dispatch_common.h')
| -rw-r--r-- | third_party/libepoxy/libepoxy/src/dispatch_common.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/third_party/libepoxy/libepoxy/src/dispatch_common.h b/third_party/libepoxy/libepoxy/src/dispatch_common.h new file mode 100644 index 0000000000..a136943194 --- /dev/null +++ b/third_party/libepoxy/libepoxy/src/dispatch_common.h @@ -0,0 +1,206 @@ +/* + * Copyright © 2013 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include "config.h" + +#ifdef _WIN32 +#define PLATFORM_HAS_EGL ENABLE_EGL +#define PLATFORM_HAS_GLX ENABLE_GLX +#define PLATFORM_HAS_WGL 1 +#elif defined(__APPLE__) +#define PLATFORM_HAS_EGL 0 +#define PLATFORM_HAS_GLX ENABLE_GLX +#define PLATFORM_HAS_WGL 0 +#elif defined(ANDROID) +#define PLATFORM_HAS_EGL ENABLE_EGL +#define PLATFORM_HAS_GLX 0 +#define PLATFORM_HAS_WGL 0 +#else +#define PLATFORM_HAS_EGL ENABLE_EGL +#define PLATFORM_HAS_GLX ENABLE_GLX +#define PLATFORM_HAS_WGL 0 +#endif + +#include "epoxy/gl.h" +#if PLATFORM_HAS_GLX +#include "epoxy/glx.h" +#endif +#if PLATFORM_HAS_EGL +# if !ENABLE_X11 +/* Disable including X11 headers if the X11 support was disabled at + * configuration time + */ +# define EGL_NO_X11 1 +/* Older versions of Mesa use this symbol to achieve the same result + * as EGL_NO_X11 + */ +# define MESA_EGL_NO_X11_HEADERS 1 +# endif +#include "epoxy/egl.h" +#endif +#if PLATFORM_HAS_WGL +#include "epoxy/wgl.h" +#endif + +#if defined(__GNUC__) +#define PACKED __attribute__((__packed__)) +#define ENDPACKED +#elif defined (_MSC_VER) +#define PACKED __pragma(pack(push,1)) +#define ENDPACKED __pragma(pack(pop)) +#else +#define PACKED +#define ENDPACKED +#endif + +/* On win32, we're going to need to keep a per-thread dispatch table, + * since the function pointers depend on the device and pixel format + * of the current context. + */ +#if defined(_WIN32) +#define USING_DISPATCH_TABLE 1 +#else +#define USING_DISPATCH_TABLE 0 +#endif + +#define UNWRAPPED_PROTO(x) (GLAPIENTRY *x) +#define WRAPPER_VISIBILITY(type) static type GLAPIENTRY +#define WRAPPER(x) x ## _wrapped + +#define GEN_GLOBAL_REWRITE_PTR(name, args, passthrough) \ + static void EPOXY_CALLSPEC \ + name##_global_rewrite_ptr args \ + { \ + if (name == (void *)name##_global_rewrite_ptr) \ + name = (void *)name##_resolver(); \ + name passthrough; \ + } + +#define GEN_GLOBAL_REWRITE_PTR_RET(ret, name, args, passthrough) \ + static ret EPOXY_CALLSPEC \ + name##_global_rewrite_ptr args \ + { \ + if (name == (void *)name##_global_rewrite_ptr) \ + name = (void *)name##_resolver(); \ + return name passthrough; \ + } + +#if USING_DISPATCH_TABLE +#define GEN_DISPATCH_TABLE_REWRITE_PTR(name, args, passthrough) \ + static void EPOXY_CALLSPEC \ + name##_dispatch_table_rewrite_ptr args \ + { \ + struct dispatch_table *dispatch_table = get_dispatch_table(); \ + \ + dispatch_table->name = (void *)name##_resolver(); \ + dispatch_table->name passthrough; \ + } + +#define GEN_DISPATCH_TABLE_REWRITE_PTR_RET(ret, name, args, passthrough) \ + static ret EPOXY_CALLSPEC \ + name##_dispatch_table_rewrite_ptr args \ + { \ + struct dispatch_table *dispatch_table = get_dispatch_table(); \ + \ + dispatch_table->name = (void *)name##_resolver(); \ + return dispatch_table->name passthrough; \ + } + +#define GEN_DISPATCH_TABLE_THUNK(name, args, passthrough) \ + static void EPOXY_CALLSPEC \ + name##_dispatch_table_thunk args \ + { \ + get_dispatch_table()->name passthrough; \ + } + +#define GEN_DISPATCH_TABLE_THUNK_RET(ret, name, args, passthrough) \ + static ret EPOXY_CALLSPEC \ + name##_dispatch_table_thunk args \ + { \ + return get_dispatch_table()->name passthrough; \ + } + +#else +#define GEN_DISPATCH_TABLE_REWRITE_PTR(name, args, passthrough) +#define GEN_DISPATCH_TABLE_REWRITE_PTR_RET(ret, name, args, passthrough) +#define GEN_DISPATCH_TABLE_THUNK(name, args, passthrough) +#define GEN_DISPATCH_TABLE_THUNK_RET(ret, name, args, passthrough) +#endif + +#define GEN_THUNKS(name, args, passthrough) \ + GEN_GLOBAL_REWRITE_PTR(name, args, passthrough) \ + GEN_DISPATCH_TABLE_REWRITE_PTR(name, args, passthrough) \ + GEN_DISPATCH_TABLE_THUNK(name, args, passthrough) + +#define GEN_THUNKS_RET(ret, name, args, passthrough) \ + GEN_GLOBAL_REWRITE_PTR_RET(ret, name, args, passthrough) \ + GEN_DISPATCH_TABLE_REWRITE_PTR_RET(ret, name, args, passthrough) \ + GEN_DISPATCH_TABLE_THUNK_RET(ret, name, args, passthrough) + +void *epoxy_egl_dlsym(const char *name); +void *epoxy_glx_dlsym(const char *name); +void *epoxy_gl_dlsym(const char *name); +void *epoxy_gles1_dlsym(const char *name); +void *epoxy_gles2_dlsym(const char *name); +void *epoxy_gles3_dlsym(const char *name); +void *epoxy_get_proc_address(const char *name); +void *epoxy_get_core_proc_address(const char *name, int core_version); +void *epoxy_get_bootstrap_proc_address(const char *name); + +int epoxy_conservative_gl_version(void); +bool epoxy_conservative_has_gl_extension(const char *name); +int epoxy_conservative_glx_version(void); +bool epoxy_conservative_has_glx_extension(const char *name); +int epoxy_conservative_egl_version(void); +bool epoxy_conservative_has_egl_extension(const char *name); +bool epoxy_conservative_has_wgl_extension(const char *name); +void *epoxy_conservative_egl_dlsym(const char *name, bool exit_if_fails); +void *epoxy_conservative_glx_dlsym(const char *name, bool exit_if_fails); + +bool epoxy_load_glx(bool exit_if_fails, bool load); +bool epoxy_load_egl(bool exit_if_fails, bool load); + +#define glBegin_unwrapped epoxy_glBegin_unwrapped +#define glEnd_unwrapped epoxy_glEnd_unwrapped +extern void UNWRAPPED_PROTO(glBegin_unwrapped)(GLenum primtype); +extern void UNWRAPPED_PROTO(glEnd_unwrapped)(void); + +extern epoxy_resolver_failure_handler_t epoxy_resolver_failure_handler; + +#if USING_DISPATCH_TABLE +void gl_init_dispatch_table(void); +void gl_switch_to_dispatch_table(void); +void wgl_init_dispatch_table(void); +void wgl_switch_to_dispatch_table(void); +extern uint32_t gl_tls_index, gl_tls_size; +extern uint32_t wgl_tls_index, wgl_tls_size; + +#define wglMakeCurrent_unwrapped epoxy_wglMakeCurrent_unwrapped +#define wglMakeContextCurrentARB_unwrapped epoxy_wglMakeContextCurrentARB_unwrapped +#define wglMakeContextCurrentEXT_unwrapped epoxy_wglMakeContextCurrentEXT_unwrapped +#define wglMakeAssociatedContextCurrentAMD_unwrapped epoxy_wglMakeAssociatedContextCurrentAMD_unwrapped +extern BOOL UNWRAPPED_PROTO(wglMakeCurrent_unwrapped)(HDC hdc, HGLRC hglrc); +extern BOOL UNWRAPPED_PROTO(wglMakeContextCurrentARB_unwrapped)(HDC hDrawDC, HDC hReadDC, HGLRC hglrc); +extern BOOL UNWRAPPED_PROTO(wglMakeContextCurrentEXT_unwrapped)(HDC hDrawDC, HDC hReadDC, HGLRC hglrc); +extern BOOL UNWRAPPED_PROTO(wglMakeAssociatedContextCurrentAMD_unwrapped)(HGLRC hglrc); +#endif /* _WIN32_ */ |