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mpv/video/out/opengl/ra_gl.h

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vo_opengl: start work on rendering API abstraction This starts work on moving OpenGL-specific code out of the general renderer code, so that we can support other other GPU APIs. This is in a very early stage and it's only a proof of concept. It's unknown whether this will succeed or result in other backends. For now, the GL rendering API ("ra") and its only provider (ra_gl) does texture creation/upload/destruction only. And it's used for the main video texture only. All other code is still hardcoded to GL. There is some duplication with ra_format and gl_format handling. In the end, only the ra variants will be needed (plus the gl_format table of course). For now, this is simpler, because for some reason lots of hwdec code still requires the GL variants, and would have to be updated to use the ra ones. Currently, the video.c code accesses private ra_gl fields. In the end, it should not do that of course, and it would not include ra_gl.h. Probably adds bugs, but you can keep them.
2017-07-26 09:19:51 +00:00
#pragma once
#include "common.h"
vo_opengl: refactor into vo_gpu This is done in several steps: 1. refactor MPGLContext -> struct ra_ctx 2. move GL-specific stuff in vo_opengl into opengl/context.c 3. generalize context creation to support other APIs, and add --gpu-api 4. rename all of the --opengl- options that are no longer opengl-specific 5. move all of the stuff from opengl/* that isn't GL-specific into gpu/ (note: opengl/gl_utils.h became opengl/utils.h) 6. rename vo_opengl to vo_gpu 7. to handle window screenshots, the short-term approach was to just add it to ra_swchain_fns. Long term (and for vulkan) this has to be moved to ra itself (and vo_gpu altered to compensate), but this was a stop-gap measure to prevent this commit from getting too big 8. move ra->fns->flush to ra_gl_ctx instead 9. some other minor changes that I've probably already forgotten Note: This is one half of a major refactor, the other half of which is provided by rossy's following commit. This commit enables support for all linux platforms, while his version enables support for all non-linux platforms. Note 2: vo_opengl_cb.c also re-uses ra_gl_ctx so it benefits from the --opengl- options like --opengl-early-flush, --opengl-finish etc. Should be a strict superset of the old functionality. Disclaimer: Since I have no way of compiling mpv on all platforms, some of these ports were done blindly. Specifically, the blind ports included context_mali_fbdev.c and context_rpi.c. Since they're both based on egl_helpers, the port should have gone smoothly without any major changes required. But if somebody complains about a compile error on those platforms (assuming anybody actually uses them), you know where to complain.
2017-09-14 06:04:55 +00:00
#include "utils.h"
vo_opengl: start work on rendering API abstraction This starts work on moving OpenGL-specific code out of the general renderer code, so that we can support other other GPU APIs. This is in a very early stage and it's only a proof of concept. It's unknown whether this will succeed or result in other backends. For now, the GL rendering API ("ra") and its only provider (ra_gl) does texture creation/upload/destruction only. And it's used for the main video texture only. All other code is still hardcoded to GL. There is some duplication with ra_format and gl_format handling. In the end, only the ra variants will be needed (plus the gl_format table of course). For now, this is simpler, because for some reason lots of hwdec code still requires the GL variants, and would have to be updated to use the ra ones. Currently, the video.c code accesses private ra_gl fields. In the end, it should not do that of course, and it would not include ra_gl.h. Probably adds bugs, but you can keep them.
2017-07-26 09:19:51 +00:00
vo_opengl: further GL API use separation Move multiple GL-specific things from the renderer to other places like vo_opengl.c, vo_opengl_cb.c, and ra_gl.c. The vp_w/vp_h parameters to gl_video_resize() make no sense anymore, and are implicitly part of struct fbodst. Checking the main framebuffer depth is moved to vo_opengl.c. For vo_opengl_cb.c it always assumes 8. The API user now has to override this manually. The previous heuristic didn't make much sense anyway. The only remaining dependency on GL is the hwdec stuff, which is harder to change.
2017-08-07 17:14:18 +00:00
struct ra *ra_create_gl(GL *gl, struct mp_log *log);
vo_opengl: separate hwdec context and mapping, port it to use ra This does two separate rather intrusive things: 1. Make the hwdec context (which does initialization, provides the device to the decoder, and other basic state) and frame mapping (getting textures from a mp_image) separate. This is more flexible, and you could map multiple images at once. It will help removing some hwdec special-casing from video.c. 2. Switch all hwdec API use to ra. Of course all code is still GL specific, but in theory it would be possible to support other backends. The most important change is that the hwdec interop returns ra objects, instead of anything GL specific. This removes the last dependency on GL-specific header files from video.c. I'm mixing these separate changes because both requires essentially rewriting all the glue code, so better do them at once. For the same reason, this change isn't done incrementally. hwdec_ios.m is untested, since I can't test it. Apart from superficial mistakes, this also requires dealing with Apple's texture format fuckups: they force you to use GL_LUMINANCE[_ALPHA] instead of GL_RED and GL_RG. We also need to report the correct format via ra_tex to the renderer, which is done by find_la_variant(). It's unknown whether this works correctly. hwdec_rpi.c as well as vo_rpi.c are still broken. (I need to pull my RPI out of a dusty pile of devices and cables, so, later.)
2017-08-10 15:48:33 +00:00
struct ra_tex *ra_create_wrapped_tex(struct ra *ra,
const struct ra_tex_params *params,
GLuint gl_texture);
vo_opengl: pass ra objects during rendering instead of GL objects Another "small" step towards removing GL dependencies from the renderer. This commit generally passes ra_tex objects instead of GL FBO integer IDs to various rendering functions. video.c still manually binds the FBOs when calling shaders. This also happens to fix a memory leak with output_fbo.
2017-08-04 13:47:50 +00:00
struct ra_tex *ra_create_wrapped_fb(struct ra *ra, GLuint gl_fbo, int w, int h);
vo_opengl: move shader handling to ra Now all GL-specifics of shader compilation are abstracted through ra. Of course we still have everything hardcoded to GLSL - that isn't going to change. Some things will probably change later - in particular, the way we pass uniforms and textures to the shader. Currently, there is a confusing mismatch between "primitive" uniforms like floats, and others like textures. Also, SSBOs are not abstracted yet.
2017-08-05 12:20:14 +00:00
GL *ra_gl_get(struct ra *ra);
vo_opengl: further GL API use separation Move multiple GL-specific things from the renderer to other places like vo_opengl.c, vo_opengl_cb.c, and ra_gl.c. The vp_w/vp_h parameters to gl_video_resize() make no sense anymore, and are implicitly part of struct fbodst. Checking the main framebuffer depth is moved to vo_opengl.c. For vo_opengl_cb.c it always assumes 8. The API user now has to override this manually. The previous heuristic didn't make much sense anyway. The only remaining dependency on GL is the hwdec stuff, which is harder to change.
2017-08-07 17:14:18 +00:00
void ra_gl_set_debug(struct ra *ra, bool enable);
vo_opengl: separate hwdec context and mapping, port it to use ra This does two separate rather intrusive things: 1. Make the hwdec context (which does initialization, provides the device to the decoder, and other basic state) and frame mapping (getting textures from a mp_image) separate. This is more flexible, and you could map multiple images at once. It will help removing some hwdec special-casing from video.c. 2. Switch all hwdec API use to ra. Of course all code is still GL specific, but in theory it would be possible to support other backends. The most important change is that the hwdec interop returns ra objects, instead of anything GL specific. This removes the last dependency on GL-specific header files from video.c. I'm mixing these separate changes because both requires essentially rewriting all the glue code, so better do them at once. For the same reason, this change isn't done incrementally. hwdec_ios.m is untested, since I can't test it. Apart from superficial mistakes, this also requires dealing with Apple's texture format fuckups: they force you to use GL_LUMINANCE[_ALPHA] instead of GL_RED and GL_RG. We also need to report the correct format via ra_tex to the renderer, which is done by find_la_variant(). It's unknown whether this works correctly. hwdec_rpi.c as well as vo_rpi.c are still broken. (I need to pull my RPI out of a dusty pile of devices and cables, so, later.)
2017-08-10 15:48:33 +00:00
void ra_gl_get_format(const struct ra_format *fmt, GLint *out_internal_format,
GLenum *out_format, GLenum *out_type);
void ra_gl_get_raw_tex(struct ra *ra, struct ra_tex *tex,
GLuint *out_texture, GLenum *out_target);
bool ra_is_gl(struct ra *ra);