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authorGeorge Sapountzis <gsapountzis@gmail.com>2010-03-11 18:04:02 +0200
committerGeorge Sapountzis <gsapountzis@gmail.com>2010-03-11 18:11:57 +0200
commitcc11dd535601808014fabece6f614cc353116ba5 (patch)
treee69d17a9bf0d03a8dca39cb423f23326fe132497
parent1b5651f6095f2bd5e54301c0e5dece0e7a37eabd (diff)
glapi: organize arch-specific code by arch (2)
-rw-r--r--src/mesa/glapi/glapi_entrypoint.c154
1 files changed, 73 insertions, 81 deletions
diff --git a/src/mesa/glapi/glapi_entrypoint.c b/src/mesa/glapi/glapi_entrypoint.c
index 7fffd2986fa..9bc38783541 100644
--- a/src/mesa/glapi/glapi_entrypoint.c
+++ b/src/mesa/glapi/glapi_entrypoint.c
@@ -90,6 +90,55 @@ init_glapi_relocs( void )
#endif
}
+
+/**
+ * Generate a dispatch function (entrypoint) which jumps through
+ * the given slot number (offset) in the current dispatch table.
+ * We need assembly language in order to accomplish this.
+ */
+_glapi_proc
+generate_entrypoint(GLuint functionOffset)
+{
+ /* 32 is chosen as something of a magic offset. For x86, the dispatch
+ * at offset 32 is the first one where the offset in the
+ * "jmp OFFSET*4(%eax)" can't be encoded in a single byte.
+ */
+ const GLubyte * const template_func = gl_dispatch_functions_start
+ + (DISPATCH_FUNCTION_SIZE * 32);
+ GLubyte * const code = (GLubyte *) malloc(DISPATCH_FUNCTION_SIZE);
+
+
+ if ( code != NULL ) {
+ (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE);
+ fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset );
+ }
+
+ return (_glapi_proc) code;
+}
+
+
+/**
+ * This function inserts a new dispatch offset into the assembly language
+ * stub that was generated with the preceeding function.
+ */
+void
+fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+{
+ GLubyte * const code = (GLubyte *) entrypoint;
+
+#if DISPATCH_FUNCTION_SIZE == 32
+ *((unsigned int *)(code + 11)) = 4 * offset;
+ *((unsigned int *)(code + 22)) = 4 * offset;
+#elif DISPATCH_FUNCTION_SIZE == 16 && defined( GLX_USE_TLS )
+ *((unsigned int *)(code + 8)) = 4 * offset;
+#elif DISPATCH_FUNCTION_SIZE == 16
+ *((unsigned int *)(code + 7)) = 4 * offset;
+#else
+# error Invalid DISPATCH_FUNCTION_SIZE!
+#endif
+}
+
+
#elif defined(USE_SPARC_ASM)
extern void __glapi_sparc_icache_flush(unsigned int *);
@@ -223,52 +272,6 @@ init_glapi_relocs( void )
#endif
}
-#else
-
-static void
-init_glapi_relocs( void ) { }
-
-#endif /* USE_*_ASM */
-
-
-void
-init_glapi_relocs_once( void )
-{
-#if defined(PTHREADS) || defined(GLX_USE_TLS)
- static pthread_once_t once_control = PTHREAD_ONCE_INIT;
- pthread_once( & once_control, init_glapi_relocs );
-#endif
-}
-
-
-#if defined(USE_X86_ASM)
-
-/**
- * Generate a dispatch function (entrypoint) which jumps through
- * the given slot number (offset) in the current dispatch table.
- * We need assembly language in order to accomplish this.
- */
-_glapi_proc
-generate_entrypoint(GLuint functionOffset)
-{
- /* 32 is chosen as something of a magic offset. For x86, the dispatch
- * at offset 32 is the first one where the offset in the
- * "jmp OFFSET*4(%eax)" can't be encoded in a single byte.
- */
- const GLubyte * const template_func = gl_dispatch_functions_start
- + (DISPATCH_FUNCTION_SIZE * 32);
- GLubyte * const code = (GLubyte *) malloc(DISPATCH_FUNCTION_SIZE);
-
-
- if ( code != NULL ) {
- (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE);
- fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset );
- }
-
- return (_glapi_proc) code;
-}
-
-#elif defined(USE_SPARC_ASM)
_glapi_proc
generate_entrypoint(GLuint functionOffset)
@@ -302,54 +305,33 @@ generate_entrypoint(GLuint functionOffset)
#endif
}
-#else
-_glapi_proc
-generate_entrypoint(GLuint functionOffset)
+void
+fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
{
- (void) functionOffset;
- return NULL;
-}
+ unsigned int *code = (unsigned int *) entrypoint;
-#endif /* USE_*_ASM */
+ code[0] &= ~0x3fffff;
+ code[0] |= (offset * sizeof(void *)) & 0x3fffff;
+ __glapi_sparc_icache_flush(&code[0]);
+}
-#if defined(USE_X86_ASM)
+#else /* USE_*_ASM */
-/**
- * This function inserts a new dispatch offset into the assembly language
- * stub that was generated with the preceeding function.
- */
-void
-fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+static void
+init_glapi_relocs( void )
{
- GLubyte * const code = (GLubyte *) entrypoint;
-
-#if DISPATCH_FUNCTION_SIZE == 32
- *((unsigned int *)(code + 11)) = 4 * offset;
- *((unsigned int *)(code + 22)) = 4 * offset;
-#elif DISPATCH_FUNCTION_SIZE == 16 && defined( GLX_USE_TLS )
- *((unsigned int *)(code + 8)) = 4 * offset;
-#elif DISPATCH_FUNCTION_SIZE == 16
- *((unsigned int *)(code + 7)) = 4 * offset;
-#else
-# error Invalid DISPATCH_FUNCTION_SIZE!
-#endif
}
-#elif defined(USE_SPARC_ASM)
-void
-fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
+_glapi_proc
+generate_entrypoint(GLuint functionOffset)
{
- unsigned int *code = (unsigned int *) entrypoint;
-
- code[0] &= ~0x3fffff;
- code[0] |= (offset * sizeof(void *)) & 0x3fffff;
- __glapi_sparc_icache_flush(&code[0]);
+ (void) functionOffset;
+ return NULL;
}
-#else
void
fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
@@ -360,3 +342,13 @@ fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
}
#endif /* USE_*_ASM */
+
+
+void
+init_glapi_relocs_once( void )
+{
+#if defined(PTHREADS) || defined(GLX_USE_TLS)
+ static pthread_once_t once_control = PTHREAD_ONCE_INIT;
+ pthread_once( & once_control, init_glapi_relocs );
+#endif
+}