-/*
+/*
** Copyright 2007, The Android Open Source Project
**
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
**
- ** http://www.apache.org/licenses/LICENSE-2.0
+ ** http://www.apache.org/licenses/LICENSE-2.0
**
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <sys/ioctl.h>
-#include <GLES2/gl2.h>
+#include <GLES3/gl3.h>
+#include <GLES3/gl3ext.h>
#include <GLES2/gl2ext.h>
#include <cutils/log.h>
#include <cutils/properties.h>
-#include "hooks.h"
-#include "egl_impl.h"
+#include "../hooks.h"
+#include "../egl_impl.h"
using namespace android;
#undef CALL_GL_API
#undef CALL_GL_API_RETURN
-#if USE_FAST_TLS_KEY
+#if defined(__arm__) && !USE_SLOW_BINDING
#define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
- #define API_ENTRY(_api) __attribute__((naked)) _api
+ #define API_ENTRY(_api) __attribute__((noinline)) _api
#define CALL_GL_API(_api, ...) \
asm volatile( \
"ldr r12, [r12, %[tls]] \n" \
"cmp r12, #0 \n" \
"ldrne pc, [r12, %[api]] \n" \
- "mov r0, #0 \n" \
- "bx lr \n" \
: \
: [tls] "J"(TLS_SLOT_OPENGL_API*4), \
[api] "J"(__builtin_offsetof(gl_hooks_t, gl._api)) \
: \
);
- #define CALL_GL_API_RETURN(_api, ...) \
- CALL_GL_API(_api, __VA_ARGS__) \
- return 0; // placate gcc's warnings. never reached.
+#elif defined(__i386__) && !USE_SLOW_BINDING
+
+ /* Tell gcc 4.4+ to always omit the frame pointer to have working code
+ * independ of compiler flag
+ */
+ #define API_ENTRY(_api) __attribute__((noinline)) \
+ __attribute__((optimize("omit-frame-pointer"))) \
+ _api
+
+ /* pop %%ebp only because x86 doesn't support naked functions */
+ /* 4.4+ supports __attribute__((optimize)) that disable function
+ * prologues
+ */
+ #if __GNUC__ < 4 || \
+ (__GNUC__ == 4 && __GNUC_MINOR__ < 4 )
+ #define PROLOGUE "pop %%ebp \n"
+ #else
+ #define PROLOGUE ""
+ #endif
+
+ #define CALL_GL_API(_api, ...) \
+ asm volatile( \
+ PROLOGUE \
+ "movl %%gs:0, %%ecx \n" \
+ "movl %c[tls](%%ecx), %%eax \n" \
+ "test %%eax, %%eax \n" \
+ "je out" #_api " \n" \
+ "movl %c[api](%%eax), %%ecx \n" \
+ "jmp *%%ecx \n" \
+ "out" #_api ": ret \n" \
+ : \
+ : [tls] "i"(TLS_SLOT_OPENGL_API*4), \
+ [api] "i"(__builtin_offsetof(gl_hooks_t, gl._api)) \
+ : \
+ );
+
+#elif defined(__mips__) && !USE_SLOW_BINDING
+
+ #define API_ENTRY(_api) __attribute__((noinline)) _api
+
+ #define CALL_GL_API(_api, ...) \
+ register unsigned int _t0 asm("t0"); \
+ register unsigned int _fn asm("t1"); \
+ register unsigned int _tls asm("v1"); \
+ register unsigned int _v0 asm("v0"); \
+ 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" \
+ " move %[v0], $0\n\t" \
+ ".set pop\n\t" \
+ : [fn] "=c"(_fn), \
+ [tls] "=&r"(_tls), \
+ [t0] "=&r"(_t0), \
+ [v0] "=&r"(_v0) \
+ : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
+ [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
+ : \
+ );
#else
#define CALL_GL_API(_api, ...) \
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
- _c->_api(__VA_ARGS__);
-
- #define CALL_GL_API_RETURN(_api, ...) \
- gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
- return _c->_api(__VA_ARGS__)
+ if (_c) return _c->_api(__VA_ARGS__);
#endif
+#define CALL_GL_API_RETURN(_api, ...) \
+ CALL_GL_API(_api, __VA_ARGS__) \
+ return 0;
+
+
extern "C" {
-#include "gl2_api.in"
+#include "gl3_api.in"
#include "gl2ext_api.in"
+#include "gl3ext_api.in"
}
#undef API_ENTRY
{
const GLubyte * ret = egl_get_string_for_current_context(name);
if (ret == NULL) {
- ret = __glGetString(name);
+ gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;
+ if(_c) ret = _c->glGetString(name);
}
return ret;
}
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