Use #defines to shrink the size of gl_generated_dispatch.c

I was running into file size limits with win32 debug symbols.

1 files changed, 86 insertions, 7 deletions

diff --git a/src/dispatch_common.h b/src/dispatch_common.h
index a0722ff..aa8d04e 100644
--- a/src/dispatch_common.h
+++ b/src/dispatch_common.h
@@ -27,15 +27,18 @@
 #define PLATFORM_HAS_EGL 0
 #define PLATFORM_HAS_GLX 0
 #define PLATFORM_HAS_WGL 1
-#define EPOXYAPIENTRY __declspec(dllexport) __stdcall
+#define EPOXYCALL __stdcall
+#define EPOXYAPIENTRY __declspec(dllexport) EPOXYCALL
 #elif defined(__APPLE__)
 #define PLATFORM_HAS_EGL 0
 #define PLATFORM_HAS_GLX 1
 #define PLATFORM_HAS_WGL 0
+#define EPOXYCALL
 #else
 #define PLATFORM_HAS_EGL 1
 #define PLATFORM_HAS_GLX 1
 #define PLATFORM_HAS_WGL 0
+#define EPOXYCALL
 #endif
 
 #include "epoxy/gl.h"
@@ -73,6 +76,76 @@
 #define WRAPPER_VISIBILITY static GLAPIENTRY
 #define WRAPPER(x) x ## _wrapped
 
+#if USING_DISPATCH_TABLE
+#define GEN_GLOBAL_REWRITE_PTR(name, args, passthrough)
+#define GEN_GLOBAL_REWRITE_PTR_RET(ret, name, args, passthrough)
+
+#define GEN_DISPATCH_TABLE_REWRITE_PTR(name, args, passthrough)            \
+    static EPOXYCALL void                                                  \
+    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 EPOXYCALL ret                                                   \
+    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 EPOXYCALL void                                                  \
+    name##_dispatch_table_thunk args                                       \
+    {                                                                      \
+        get_dispatch_table()->name passthrough;                            \
+    }
+
+#define GEN_DISPATCH_TABLE_THUNK_RET(ret, name, args, passthrough)         \
+    static EPOXYCALL ret                                                   \
+    name##_dispatch_table_thunk args                                       \
+    {                                                                      \
+        return get_dispatch_table()->name passthrough;                     \
+    }
+
+#else
+#define GEN_GLOBAL_REWRITE_PTR(name, args, passthrough)          \
+    static EPOXYCALL void                                        \
+    name##_global_rewrite_ptr args                               \
+    {                                                            \
+        name = (void *)name##_resolver();                        \
+        name passthrough;                                        \
+    }
+
+#define GEN_GLOBAL_REWRITE_PTR_RET(ret, name, args, passthrough) \
+    static EPOXYCALL ret                                         \
+    name##_global_rewrite_ptr args                               \
+    {                                                            \
+        name = (void *)name##_resolver();                        \
+        return name passthrough;                                 \
+    }
+#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);
@@ -96,16 +169,22 @@ void epoxy_print_failure_reasons(const char *name,
 
 bool epoxy_extension_in_string(const char *extension_list, const char *ext);
 
-extern void UNWRAPPED_PROTO(epoxy_glBegin_unwrapped)(GLenum primtype);
-extern void UNWRAPPED_PROTO(epoxy_glEnd_unwrapped)(void);
+#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);
 
 #if USING_DISPATCH_TABLE
 void gl_init_dispatch_table(void);
 void wgl_init_dispatch_table(void);
 extern uint32_t gl_tls_index, gl_tls_size;
 extern uint32_t wgl_tls_index, wgl_tls_size;
-extern BOOL UNWRAPPED_PROTO(epoxy_wglMakeCurrent_unwrapped)(HDC hdc, HGLRC hglrc);
-extern BOOL UNWRAPPED_PROTO(epoxy_wglMakeContextCurrentARB_unwrapped)(HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
-extern BOOL UNWRAPPED_PROTO(epoxy_wglMakeContextCurrentEXT_unwrapped)(HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
-extern BOOL UNWRAPPED_PROTO(epoxy_wglMakeAssociatedContextCurrentAMD_unwrapped)(HGLRC hglrc);
+#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