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mpv/video/out/opengl/context.h
Niklas Haas 65979986a9 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.
2017-09-21 15:00:55 +02:00

57 lines
2.4 KiB
C

#pragma once
#include "common/global.h"
#include "video/out/gpu/context.h"
#include "common.h"
extern const int mpgl_preferred_gl_versions[];
// Returns whether or not a candidate GL version should be accepted or not
// (based on the --opengl opts). Implementations may call this before
// ra_gl_ctx_init if they wish to probe for multiple possible GL versions.
bool ra_gl_ctx_test_version(struct ra_ctx *ctx, int version, bool es);
// These are a set of helpers for ra_ctx providers based on ra_gl.
// The init function also initializes ctx->ra and ctx->swapchain, so the user
// doesn't have to do this manually. (Similarly, the uninit function will
// clean them up)
struct ra_gl_ctx_params {
// Set to the platform-specific function to swap buffers, like
// glXSwapBuffers, eglSwapBuffers etc. This will be called by
// ra_gl_ctx_swap_buffers. Required unless you either never call that
// function or if you override it yourself.
void (*swap_buffers)(struct ra_ctx *ctx);
// Set to false if the implementation follows normal GL semantics, which is
// upside down. Set to true if it does *not*, i.e. if rendering is right
// side up
bool flipped;
// If this is set to non-NULL, then the ra_gl_ctx will consider the GL
// implementation to be using an external swapchain, which disables the
// software simulation of --swapchain-depth. Any functions defined by this
// ra_swapchain_fns structs will entirely replace the equivalent ra_gl_ctx
// functions in the resulting ra_swapchain.
const struct ra_swapchain_fns *external_swapchain;
// For hwdec_vaegl.c:
const char *native_display_type;
void *native_display;
};
void ra_gl_ctx_uninit(struct ra_ctx *ctx);
bool ra_gl_ctx_init(struct ra_ctx *ctx, GL *gl, struct ra_gl_ctx_params params);
// Call this any time the window size or main framebuffer changes
void ra_gl_ctx_resize(struct ra_swapchain *sw, int w, int h, int fbo);
// These functions are normally set in the ra_swapchain->fns, but if an
// implementation has a need to override this fns struct with custom functions
// for whatever reason, these can be used to inherit the original behavior.
int ra_gl_ctx_color_depth(struct ra_swapchain *sw);
struct mp_image *ra_gl_ctx_screenshot(struct ra_swapchain *sw);
struct ra_tex *ra_gl_ctx_start_frame(struct ra_swapchain *sw);
bool ra_gl_ctx_submit_frame(struct ra_swapchain *sw, const struct vo_frame *frame);
void ra_gl_ctx_swap_buffers(struct ra_swapchain *sw);