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Diffstat (limited to 'cmds/screenrecord/Program.h')
-rw-r--r-- | cmds/screenrecord/Program.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/cmds/screenrecord/Program.h b/cmds/screenrecord/Program.h new file mode 100644 index 0000000..e47bc0d --- /dev/null +++ b/cmds/screenrecord/Program.h @@ -0,0 +1,92 @@ +/* + * Copyright 2013 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 SCREENRECORD_PROGRAM_H +#define SCREENRECORD_PROGRAM_H + +#include <utils/Errors.h> + +#include <EGL/egl.h> +#include <GLES2/gl2.h> + +namespace android { + +/* + * Utility class for GLES rendering. + * + * Not thread-safe. + */ +class Program { +public: + enum ProgramType { PROGRAM_UNKNOWN=0, PROGRAM_EXTERNAL_TEXTURE, + PROGRAM_TEXTURE_2D }; + + Program() : + mProgramType(PROGRAM_UNKNOWN), + mProgram(0), + maPositionLoc(0), + maTextureCoordLoc(0), + muMVPMatrixLoc(0), + muGLCMatrixLoc(0), + muTextureLoc(0) + {} + ~Program() { release(); } + + // Initialize the program for use with the specified texture type. + status_t setup(ProgramType type); + + // Release the program and associated resources. + void release(); + + // Blit the specified texture to { x, y, x+w, y+h }. + status_t blit(GLuint texName, const float* texMatrix, + int32_t x, int32_t y, int32_t w, int32_t h) const; + + // Draw a number of triangles. + status_t drawTriangles(GLuint texName, const float* texMatrix, + const float* vertices, const float* texes, size_t count) const; + + static const float kIdentity[]; + +private: + Program(const Program&); + Program& operator=(const Program&); + + // Common code for draw functions. + status_t beforeDraw(GLuint texName, const float* texMatrix, + const float* vertices, const float* texes) const; + status_t afterDraw() const; + + // GLES 2 shader utilities. + status_t createProgram(GLuint* outPgm, const char* vertexShader, + const char* fragmentShader); + static status_t compileShader(GLenum shaderType, const char* src, + GLuint* outShader); + static status_t linkShaderProgram(GLuint vs, GLuint fs, GLuint* outPgm); + + ProgramType mProgramType; + GLuint mProgram; + + GLint maPositionLoc; + GLint maTextureCoordLoc; + GLint muMVPMatrixLoc; + GLint muGLCMatrixLoc; + GLint muTextureLoc; +}; + +}; // namespace android + +#endif /*SCREENRECORD_PROGRAM_H*/ |