76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
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/*
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**
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** Copyright 2009, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef ANDROID_OPENGLES_COPYBIT_H
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#define ANDROID_OPENGLES_COPYBIT_H
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#include <stdlib.h>
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#include <GLES/gl.h>
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#include "TextureObjectManager.h"
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namespace android {
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#ifdef LIBAGL_USE_GRALLOC_COPYBITS
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bool drawTexiOESWithCopybit_impl(GLint x, GLint y, GLint z,
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GLint w, GLint h, ogles_context_t* c);
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bool drawTriangleFanWithCopybit_impl(ogles_context_t* c, GLint first,
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GLsizei count);
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inline bool copybitQuickCheckContext(ogles_context_t* c) {
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return c->copybits.drawSurfaceBuffer != 0
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&& c->rasterizer.state.enabled_tmu == 1
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&& c->textures.tmu[0].texture->try_copybit;
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}
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/*
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* Tries to draw a drawTexiOES using copybit hardware.
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* Returns true if successful.
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*/
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inline bool drawTexiOESWithCopybit(GLint x, GLint y, GLint z,
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GLint w, GLint h, ogles_context_t* c) {
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if (!copybitQuickCheckContext(c)) {
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return false;
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}
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return drawTexiOESWithCopybit_impl(x, y, z, w, h, c);
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}
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/*
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* Tries to draw a triangle fan using copybit hardware.
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* Returns true if successful.
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*/
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inline bool drawTriangleFanWithCopybit(ogles_context_t* c, GLint first,
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GLsizei count) {
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/*
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* We are looking for the glDrawArrays call made by SurfaceFlinger.
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*/
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if ((count!=4) || first || !copybitQuickCheckContext(c))
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return false;
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return drawTriangleFanWithCopybit_impl(c, first, count);
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}
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#endif // LIBAGL_USE_GRALLOC_COPYBITS
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} // namespace android
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#endif // ANDROID_OPENGLES_COPYBIT_H
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