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/*
* This file is part of mpv.
* Parts based on MPlayer code by Reimar Döffinger.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*
* You can alternatively redistribute this file and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*/
#ifndef MP_GL_UTILS_
#define MP_GL_UTILS_
#include "gl_common.h"
struct mp_log;
void glCheckError(GL *gl, struct mp_log *log, const char *info);
int glFmt2bpp(GLenum format, GLenum type);
void glUploadTex(GL *gl, GLenum target, GLenum format, GLenum type,
const void *dataptr, int stride,
int x, int y, int w, int h, int slice);
void glClearTex(GL *gl, GLenum target, GLenum format, GLenum type,
int x, int y, int w, int h, uint8_t val, void **scratch);
mp_image_t *glGetWindowScreenshot(GL *gl);
// print a multi line string with line numbers (e.g. for shader sources)
// log, lev: module and log level, as in mp_msg()
void mp_log_source(struct mp_log *log, int lev, const char *src);
struct gl_vao_entry {
// used for shader / glBindAttribLocation
const char *name;
// glVertexAttribPointer() arguments
int num_elems; // size (number of elements)
GLenum type;
bool normalized;
int offset;
};
struct gl_vao {
GL *gl;
GLuint vao; // the VAO object, or 0 if unsupported by driver
GLuint buffer; // GL_ARRAY_BUFFER used for the data
int stride; // size of each element (interleaved elements are assumed)
const struct gl_vao_entry *entries;
};
void gl_vao_init(struct gl_vao *vao, GL *gl, int stride,
const struct gl_vao_entry *entries);
void gl_vao_uninit(struct gl_vao *vao);
void gl_vao_bind(struct gl_vao *vao);
void gl_vao_unbind(struct gl_vao *vao);
void gl_vao_bind_attribs(struct gl_vao *vao, GLuint program);
void gl_vao_draw_data(struct gl_vao *vao, GLenum prim, void *ptr, size_t num);
struct fbotex {
GL *gl;
GLuint fbo;
GLuint texture;
int tex_w, tex_h; // size of .texture
int vp_x, vp_y, vp_w, vp_h; // viewport of fbo / used part of the texture
};
bool fbotex_init(struct fbotex *fbo, GL *gl, struct mp_log *log, int w, int h,
GLenum gl_target, GLenum gl_filter, GLenum iformat);
void fbotex_uninit(struct fbotex *fbo);
void gl_matrix_ortho2d(float m[3][3], float x0, float x1, float y0, float y1);
void gl_set_debug_logger(GL *gl, struct mp_log *log);
#endif
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