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/*
**
** Copyright 2009, 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.
*/
#ifndef ANDROID_OPENGLES_COPYBIT_H
#define ANDROID_OPENGLES_COPYBIT_H
#include <stdlib.h>
#include <GLES/gl.h>
#include "TextureObjectManager.h"
namespace android {
#ifdef LIBAGL_USE_GRALLOC_COPYBITS
bool drawTexiOESWithCopybit_impl(GLint x, GLint y, GLint z,
GLint w, GLint h, ogles_context_t* c);
bool drawTriangleFanWithCopybit_impl(ogles_context_t* c, GLint first,
GLsizei count);
inline bool copybitQuickCheckContext(ogles_context_t* c) {
return c->copybits.drawSurfaceBuffer != 0
&& c->rasterizer.state.enabled_tmu == 1
&& c->textures.tmu[0].texture->try_copybit;
}
/*
* Tries to draw a drawTexiOES using copybit hardware.
* Returns true if successful.
*/
inline bool drawTexiOESWithCopybit(GLint x, GLint y, GLint z,
GLint w, GLint h, ogles_context_t* c) {
if (!copybitQuickCheckContext(c)) {
return false;
}
return drawTexiOESWithCopybit_impl(x, y, z, w, h, c);
}
/*
* Tries to draw a triangle fan using copybit hardware.
* Returns true if successful.
*/
inline bool drawTriangleFanWithCopybit(ogles_context_t* c, GLint first,
GLsizei count) {
/*
* We are looking for the glDrawArrays call made by SurfaceFlinger.
*/
if ((count!=4) || first || !copybitQuickCheckContext(c))
return false;
return drawTriangleFanWithCopybit_impl(c, first, count);
}
#endif // LIBAGL_USE_GRALLOC_COPYBITS
} // namespace android
#endif // ANDROID_OPENGLES_COPYBIT_H
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