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Refactor FBConfig lookup

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Background: To bind a Xorg window content to a OpenGL FBConfig, which
has to match the color format the Xorg window is using.

Previously, compton just find a FBConfig that has the same depth. This
led to chjj/compton#477, which has been fixed by a ugly hack.

The commit refactor the lookup mechanism to take as much into
consideration as we reasonably can. Hopefully preventing similar
breakages in the future.

Also, some code sharing between the old and new glx backend.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-02-03 16:41:04 +00:00
parent 7ac351e5b5
commit 8922312e42
12 changed files with 271 additions and 514 deletions
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12
src/opengl.h
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@ -19,20 +19,13 @@
#include "log.h"
#include <xcb/xcb.h>
#include <xcb/render.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <locale.h>
#include <GL/glx.h>
/// @brief Wrapper of a GLX FBConfig.
typedef struct glx_fbconfig {
GLXFBConfig cfg;
GLint texture_fmt;
GLint texture_tgts;
bool y_inverted;
} glx_fbconfig_t;
/**
* Check if a word is in string.
*/
@ -108,7 +101,7 @@ glx_load_prog_main(session_t *ps,
bool
glx_bind_pixmap(session_t *ps, glx_texture_t **pptex, xcb_pixmap_t pixmap,
unsigned width, unsigned height, unsigned depth);
unsigned width, unsigned height, const struct glx_fbconfig_info *);
void
glx_release_pixmap(session_t *ps, glx_texture_t *ptex);
@ -249,5 +242,6 @@ free_win_res_glx(session_t *ps, win *w) {
free_paint_glx(ps, &w->shadow_paint);
#ifdef CONFIG_OPENGL
free_glx_bc(ps, &w->glx_blur_cache);
free(w->paint.fbcfg);
#endif
}