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116 lines
4.8 KiB
116 lines
4.8 KiB
/* |
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Copyright (c) 2013, Broadcom Europe Ltd |
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Copyright (c) 2013, Tim Gover |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of the copyright holder nor the |
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names of its contributors may be used to endorse or promote products |
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derived from this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY |
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef RASPITEX_UTIL_H_ |
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#define RASPITEX_UTIL_H_ |
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#define VCOS_LOG_CATEGORY (&raspitex_log_category) |
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#include <math.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <EGL/egl.h> |
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#include <EGL/eglext.h> |
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#include "RaspiTex.h" |
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#include "interface/vcos/vcos.h" |
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extern VCOS_LOG_CAT_T raspitex_log_category; |
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#define SHADER_MAX_ATTRIBUTES 16 |
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#define SHADER_MAX_UNIFORMS 16 |
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/** |
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* Container for a simple shader program. The uniform and attribute locations |
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* are automatically setup by raspitex_build_shader_program. |
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*/ |
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typedef struct RASPITEXUTIL_SHADER_PROGRAM_T |
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{ |
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const char *vertex_source; /// Pointer to vertex shader source |
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const char *fragment_source; /// Pointer to fragment shader source |
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/// Array of uniform names for raspitex_build_shader_program to process |
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const char *uniform_names[SHADER_MAX_UNIFORMS]; |
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/// Array of attribute names for raspitex_build_shader_program to process |
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const char *attribute_names[SHADER_MAX_ATTRIBUTES]; |
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GLint vs; /// Vertex shader handle |
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GLint fs; /// Fragment shader handle |
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GLint program; /// Shader program handle |
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/// The locations for uniforms defined in uniform_names |
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GLint uniform_locations[SHADER_MAX_UNIFORMS]; |
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/// The locations for attributes defined in attribute_names |
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GLint attribute_locations[SHADER_MAX_ATTRIBUTES]; |
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} RASPITEXUTIL_SHADER_PROGRAM_T; |
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/* Uncomment to enable extra GL error checking */ |
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//#define CHECK_GL_ERRORS |
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#if defined(CHECK_GL_ERRORS) |
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#define GLCHK(X) \ |
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do { \ |
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GLenum err = GL_NO_ERROR; \ |
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X; \ |
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while ((err = glGetError())) \ |
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{ \ |
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vcos_log_error("GL error 0x%x in " #X "file %s line %d", err, __FILE__,__LINE__); \ |
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vcos_assert(err == GL_NO_ERROR); \ |
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exit(err); \ |
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} \ |
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} \ |
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while(0) |
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#else |
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#define GLCHK(X) X |
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#endif /* CHECK_GL_ERRORS */ |
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/* Default GL scene ops functions */ |
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int raspitexutil_create_native_window(RASPITEX_STATE *raspitex_state); |
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int raspitexutil_gl_init_1_0(RASPITEX_STATE *raspitex_state); |
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int raspitexutil_gl_init_2_0(RASPITEX_STATE *raspitex_state); |
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int raspitexutil_update_model(RASPITEX_STATE* raspitex_state); |
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int raspitexutil_redraw(RASPITEX_STATE* raspitex_state); |
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void raspitexutil_gl_term(RASPITEX_STATE *raspitex_state); |
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void raspitexutil_destroy_native_window(RASPITEX_STATE *raspitex_state); |
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int raspitexutil_create_textures(RASPITEX_STATE *raspitex_state); |
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int raspitexutil_update_texture(RASPITEX_STATE *raspitex_state, |
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EGLClientBuffer mm_buf); |
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int raspitexutil_update_y_texture(RASPITEX_STATE *raspitex_state, |
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EGLClientBuffer mm_buf); |
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int raspitexutil_update_u_texture(RASPITEX_STATE *raspitex_state, |
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EGLClientBuffer mm_buf); |
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int raspitexutil_update_v_texture(RASPITEX_STATE *raspitex_state, |
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EGLClientBuffer mm_buf); |
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int raspitexutil_capture_bgra(struct RASPITEX_STATE *state, |
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uint8_t **buffer, size_t *buffer_size); |
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void raspitexutil_close(RASPITEX_STATE* raspitex_state); |
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/* Utility functions */ |
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int raspitexutil_build_shader_program(RASPITEXUTIL_SHADER_PROGRAM_T *p); |
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void raspitexutil_brga_to_rgba(uint8_t *buffer, size_t size); |
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#endif /* RASPITEX_UTIL_H_ */
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