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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
Download Patch File Download Diff File Expand all files Collapse all files

104
src/render.c
View File

@ -3,10 +3,10 @@
#include <stdlib.h>
#include <string.h>
#include <xcb/xcb_image.h>
#include <xcb/composite.h>
#include <xcb/sync.h>
#include <xcb/render.h>
#include <xcb/sync.h>
#include <xcb/xcb_image.h>
#include <xcb/xcb_renderutil.h>
#include "common.h"
@ -17,40 +17,69 @@
#include "opengl.h"
#endif
#include "vsync.h"
#include "win.h"
#include "kernel.h"
#include "compiler.h"
#include "x.h"
#include "config.h"
#include "region.h"
#include "kernel.h"
#include "log.h"
#include "region.h"
#include "types.h"
#include "utils.h"
#include "vsync.h"
#include "win.h"
#include "x.h"
#include "backend/backend_common.h"
#include "backend/gl/glx.h"
#include "render.h"
#ifdef CONFIG_OPENGL
/**
* Bind texture in paint_t if we are using GLX backend.
*/
static inline bool paint_bind_tex(session_t *ps, paint_t *ppaint, unsigned wid,
unsigned hei, unsigned depth, bool force) {
static inline bool paint_bind_tex(session_t *ps, paint_t *ppaint, unsigned wid, unsigned hei,
unsigned depth, xcb_visualid_t visual, bool force) {
#ifdef CONFIG_OPENGL
if (!ppaint->pixmap)
return false;
if (force || !glx_tex_binded(ppaint->ptex, ppaint->pixmap))
return glx_bind_pixmap(ps, &ppaint->ptex, ppaint->pixmap, wid, hei, depth);
xcb_render_pictforminfo_t *pictfmt = NULL;
xcb_render_pictforminfo_t tmp_pictfmt = {.direct =
{
.red_mask = 255,
.blue_mask = 255,
.green_mask = 255,
.alpha_mask = depth == 32 ? 255 : 0,
},
.type = XCB_RENDER_PICT_TYPE_DIRECT};
return true;
}
#else
static inline bool paint_bind_tex(session_t *ps, paint_t *ppaint, unsigned wid,
unsigned hei, unsigned depth, bool force) {
return true;
}
if (!depth) {
assert(visual);
depth = x_get_visual_depth(ps->c, visual);
}
if (!visual) {
assert(depth);
pictfmt = &tmp_pictfmt;
} else {
pictfmt = x_get_pictform_for_visual(ps->c, visual);
}
if (!pictfmt) {
return false;
}
if (!ppaint->fbcfg) {
ppaint->fbcfg = glx_find_fbconfig(ps->dpy, ps->scr, pictfmt, depth);
}
if (!ppaint->fbcfg) {
log_error("Failed to find appropriate FBConfig for X pixmap");
return false;
}
if (force || !glx_tex_binded(ppaint->ptex, ppaint->pixmap))
return glx_bind_pixmap(ps, &ppaint->ptex, ppaint->pixmap, wid, hei, ppaint->fbcfg);
#endif
return true;
}
/**
* Check if current backend uses XRender for rendering.
@ -219,7 +248,8 @@ void paint_one(session_t *ps, win *w, const region_t *reg_paint) {
// Let glx_bind_pixmap() determine pixmap size, because if the user
// is resizing windows, the width and height we get may not be up-to-date,
// causing the jittering issue M4he reported in #7.
if (!paint_bind_tex(ps, &w->paint, 0, 0, 0, (!ps->o.glx_no_rebind_pixmap && w->pixmap_damaged))) {
if (!paint_bind_tex(ps, &w->paint, 0, 0, 0, w->a.visual,
(!ps->o.glx_no_rebind_pixmap && w->pixmap_damaged))) {
log_error("Failed to bind texture for window %#010x.", w->id);
}
w->pixmap_damaged = false;
@ -445,8 +475,7 @@ static bool get_root_tile(session_t *ps) {
ps->root_tile_paint.pixmap = pixmap;
#ifdef CONFIG_OPENGL
if (BKEND_GLX == ps->o.backend)
return glx_bind_pixmap(ps, &ps->root_tile_paint.ptex,
ps->root_tile_paint.pixmap, 0, 0, 0);
return paint_bind_tex(ps, &ps->root_tile_paint, 0, 0, 0, ps->vis, false);
#endif
return true;
@ -484,7 +513,8 @@ static bool win_build_shadow(session_t *ps, win *w, double opacity) {
return XCB_NONE;
}
shadow_pixmap = x_create_pixmap(ps->c, 8, ps->root, shadow_image->width, shadow_image->height);
shadow_pixmap =
x_create_pixmap(ps->c, 8, ps->root, shadow_image->width, shadow_image->height);
shadow_pixmap_argb =
x_create_pixmap(ps->c, 32, ps->root, shadow_image->width, shadow_image->height);
@ -542,7 +572,7 @@ shadow_picture_err:
*/
static inline void win_paint_shadow(session_t *ps, win *w, region_t *reg_paint) {
// Bind shadow pixmap to GLX texture if needed
paint_bind_tex(ps, &w->shadow_paint, 0, 0, 32, false);
paint_bind_tex(ps, &w->shadow_paint, 0, 0, 32, 0, false);
if (!paint_isvalid(ps, &w->shadow_paint)) {
log_error("Window %#010x is missing shadow data.", w->id);
@ -942,12 +972,14 @@ void paint_all(session_t *ps, win *const t, bool ignore_damage) {
switch (ps->o.backend) {
case BKEND_XRENDER:
if (ps->o.monitor_repaint) {
// Copy the screen content to a new picture, and highlight
// the paint region. This is not very efficient, but since
// it's for debug only, we don't really care
// Copy the screen content to a new picture, and highlight the
// paint region. This is not very efficient, but since it's for
// debug only, we don't really care
// First we create a new picture, and copy content from the buffer to it
xcb_render_pictforminfo_t *pictfmt = x_get_pictform_for_visual(ps->c, ps->vis);
// First we create a new picture, and copy content from the buffer
// to it
xcb_render_pictforminfo_t *pictfmt =
x_get_pictform_for_visual(ps->c, ps->vis);
xcb_render_picture_t new_pict = x_create_picture_with_pictfmt(
ps, ps->root_width, ps->root_height, pictfmt, 0, NULL);
xcb_render_composite(ps->c, XCB_RENDER_PICT_OP_SRC,
@ -983,7 +1015,7 @@ void paint_all(session_t *ps, win *const t, bool ignore_damage) {
glXWaitX();
assert(ps->tgt_buffer.pixmap);
paint_bind_tex(ps, &ps->tgt_buffer, ps->root_width, ps->root_height,
ps->depth, !ps->o.glx_no_rebind_pixmap);
ps->depth, ps->vis, !ps->o.glx_no_rebind_pixmap);
if (ps->o.vsync_use_glfinish)
glFinish();
else
@ -1200,12 +1232,12 @@ void deinit_render(session_t *ps) {
// Free other X resources
free_root_tile(ps);
// Free the damage ring
for (int i = 0; i < ps->ndamage; ++i)
pixman_region32_fini(&ps->damage_ring[i]);
ps->ndamage = 0;
free(ps->damage_ring);
ps->damage_ring = ps->damage = NULL;
// Free the damage ring
for (int i = 0; i < ps->ndamage; ++i)
pixman_region32_fini(&ps->damage_ring[i]);
ps->ndamage = 0;
free(ps->damage_ring);
ps->damage_ring = ps->damage = NULL;
#ifdef CONFIG_OPENGL
glx_destroy(ps);