1 files changed, 94 insertions, 0 deletions
diff --git a/video/out/opengl/gl_utils.h b/video/out/opengl/gl_utils.h
new file mode 100644
index 0000000000..5ae8d1590b
--- /dev/null
+++ b/video/out/opengl/gl_utils.h
@@ -0,0 +1,94 @@
+/*
+ * 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 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.
+ *
+ * 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MP_GL_UTILS_
+#define MP_GL_UTILS_
+
+#include <math.h>
+
+#include "common.h"
+#include "ra.h"
+
+struct mp_log;
+
+void gl_check_error(GL *gl, struct mp_log *log, const char *info);
+
+void gl_upload_tex(GL *gl, GLenum target, GLenum format, GLenum type,
+                   const void *dataptr, int stride,
+                   int x, int y, int w, int h);
+
+mp_image_t *gl_read_fbo_contents(GL *gl, int fbo, int w, int h);
+
+const char* mp_sampler_type(GLenum texture_target);
+
+// 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_draw_data(struct gl_vao *vao, GLenum prim, void *ptr, size_t num);
+
+void gl_set_debug_logger(GL *gl, struct mp_log *log);
+
+struct gl_timer;
+
+struct gl_timer *gl_timer_create(GL *gl);
+void gl_timer_free(struct gl_timer *timer);
+void gl_timer_start(struct gl_timer *timer);
+void gl_timer_stop(GL *gl);
+struct mp_pass_perf gl_timer_measure(struct gl_timer *timer);
+
+#define NUM_PBO_BUFFERS 3
+
+struct gl_pbo_upload {
+    GL *gl;
+    int index;
+    GLuint buffer;
+    size_t buffer_size;
+};
+
+void gl_pbo_upload_tex(struct gl_pbo_upload *pbo, GL *gl, bool use_pbo,
+                       GLenum target, GLenum format,  GLenum type,
+                       int tex_w, int tex_h, const void *dataptr, int stride,
+                       int x, int y, int w, int h);
+void gl_pbo_upload_uninit(struct gl_pbo_upload *pbo);
+
+int gl_determine_16bit_tex_depth(GL *gl);
+int gl_get_fb_depth(GL *gl, int fbo);
+
+#endif