[MIPS] Add MIPS architecture support to opengl framework
Change-Id: Id7704d35bed14d96a85dc1f29db0566cd03872b5
diff --git a/opengl/libs/EGL/getProcAddress.cpp b/opengl/libs/EGL/getProcAddress.cpp
index f453176..d23da7a 100644
--- a/opengl/libs/EGL/getProcAddress.cpp
+++ b/opengl/libs/EGL/getProcAddress.cpp
@@ -37,6 +37,8 @@
#if USE_FAST_TLS_KEY
+ #if defined(__arm__)
+
#define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
#define API_ENTRY(_api) __attribute__((naked)) _api
@@ -57,6 +59,41 @@
: \
);
+ #elif defined(__mips__)
+
+ #define API_ENTRY(_api) __attribute__((noinline)) _api
+
+ #define CALL_GL_EXTENSION_API(_api, ...) \
+ register unsigned int t0 asm("t0"); \
+ register unsigned int fn asm("t1"); \
+ register unsigned int tls asm("v1"); \
+ asm volatile( \
+ ".set push\n\t" \
+ ".set noreorder\n\t" \
+ ".set mips32r2\n\t" \
+ "rdhwr %[tls], $29\n\t" \
+ "lw %[t0], %[OPENGL_API](%[tls])\n\t" \
+ "beqz %[t0], 1f\n\t" \
+ " move %[fn], $ra\n\t" \
+ "lw %[fn], %[API](%[t0])\n\t" \
+ "movz %[fn], $ra, %[fn]\n\t" \
+ "1:\n\t" \
+ "j %[fn]\n\t" \
+ " nop\n\t" \
+ ".set pop\n\t" \
+ : [fn] "=c"(fn), \
+ [tls] "=&r"(tls), \
+ [t0] "=&r"(t0) \
+ : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
+ [API] "I"(__builtin_offsetof(gl_hooks_t, \
+ ext.extensions[_api])) \
+ : \
+ );
+
+ #else
+ #error Unsupported architecture
+ #endif
+
#define GL_EXTENSION_NAME(_n) __glExtFwd##_n
#define GL_EXTENSION(_n) \