135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
/*
|
|
** 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
|
|
**
|
|
** 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
|
|
** limitations under the License.
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <sys/ioctl.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"
|
|
|
|
using namespace android;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Actual GL entry-points
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#undef API_ENTRY
|
|
#undef CALL_GL_API
|
|
#undef CALL_GL_API_RETURN
|
|
|
|
#if defined(__arm__) && !USE_SLOW_BINDING
|
|
|
|
#define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
|
|
|
|
#define API_ENTRY(_api) __attribute__((noinline)) _api
|
|
|
|
#define CALL_GL_API(_api, ...) \
|
|
asm volatile( \
|
|
GET_TLS(r12) \
|
|
"ldr r12, [r12, %[tls]] \n" \
|
|
"cmp r12, #0 \n" \
|
|
"ldrne pc, [r12, %[api]] \n" \
|
|
: \
|
|
: [tls] "J"(TLS_SLOT_OPENGL_API*4), \
|
|
[api] "J"(__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 API_ENTRY(_api) _api
|
|
|
|
#define CALL_GL_API(_api, ...) \
|
|
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
|
|
if (_c) return _c->_api(__VA_ARGS__);
|
|
|
|
#endif
|
|
|
|
#define CALL_GL_API_RETURN(_api, ...) \
|
|
CALL_GL_API(_api, __VA_ARGS__) \
|
|
return 0;
|
|
|
|
|
|
|
|
extern "C" {
|
|
#pragma GCC diagnostic ignored "-Wunused-parameter"
|
|
#include "gl2_api.in"
|
|
#include "gl2ext_api.in"
|
|
#pragma GCC diagnostic warning "-Wunused-parameter"
|
|
}
|
|
|
|
#undef API_ENTRY
|
|
#undef CALL_GL_API
|
|
#undef CALL_GL_API_RETURN
|
|
|
|
/*
|
|
* glGetString() is special because we expose some extensions in the wrapper
|
|
*/
|
|
|
|
extern "C" const GLubyte * __glGetString(GLenum name);
|
|
|
|
const GLubyte * glGetString(GLenum name)
|
|
{
|
|
const GLubyte * ret = egl_get_string_for_current_context(name);
|
|
if (ret == NULL) {
|
|
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;
|
|
ret = _c->glGetString(name);
|
|
}
|
|
return ret;
|
|
}
|