121 lines
3.7 KiB
C++
121 lines
3.7 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 <GLES2/gl2.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 USE_FAST_TLS_KEY
|
||
|
|
|
||
|
|
#ifdef HAVE_ARM_TLS_REGISTER
|
||
|
|
#define GET_TLS(reg) \
|
||
|
|
"mrc p15, 0, " #reg ", c13, c0, 3 \n"
|
||
|
|
#else
|
||
|
|
#define GET_TLS(reg) \
|
||
|
|
"mov " #reg ", #0xFFFF0FFF \n" \
|
||
|
|
"ldr " #reg ", [" #reg ", #-15] \n"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define API_ENTRY(_api) __attribute__((naked)) _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" \
|
||
|
|
"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.
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
#define API_ENTRY(_api) _api
|
||
|
|
|
||
|
|
#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__)
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
extern "C" {
|
||
|
|
#include "gl2_api.in"
|
||
|
|
#include "gl2ext_api.in"
|
||
|
|
}
|
||
|
|
|
||
|
|
#undef API_ENTRY
|
||
|
|
#undef CALL_GL_API
|
||
|
|
#undef CALL_GL_API_RETURN
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* These GL calls are special because they need to EGL to retrieve some
|
||
|
|
* informations before they can execute.
|
||
|
|
*/
|
||
|
|
|
||
|
|
extern "C" void __glEGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image);
|
||
|
|
extern "C" void __glEGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image);
|
||
|
|
|
||
|
|
|
||
|
|
void glEGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image)
|
||
|
|
{
|
||
|
|
GLeglImageOES implImage =
|
||
|
|
(GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image);
|
||
|
|
__glEGLImageTargetTexture2DOES(target, implImage);
|
||
|
|
}
|
||
|
|
|
||
|
|
void glEGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
|
||
|
|
{
|
||
|
|
GLeglImageOES implImage =
|
||
|
|
(GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image);
|
||
|
|
__glEGLImageTargetRenderbufferStorageOES(target, implImage);
|
||
|
|
}
|
||
|
|
|