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render/gles2: add wlr_gles2_renderer_get_buffer_fbo()

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Replacement for wlr_gles2_renderer_get_current_fbo(). Wayfire uses
it for instance.
This commit is contained in:
Simon Ser 2023-12-05 18:52:48 +01:00
parent 6a2ff0dffe
commit 1f64f3925c
2 changed files with 23 additions and 2 deletions
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5
include/wlr/render/gles2.h
View file

@ -10,6 +10,7 @@
#define WLR_RENDER_GLES2_H
#include <GLES2/gl2.h>
#include <wlr/render/wlr_renderer.h>
struct wlr_egl;
@ -31,8 +32,8 @@ struct wlr_renderer *wlr_gles2_renderer_create_with_drm_fd(int drm_fd);
struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl);
struct wlr_egl *wlr_gles2_renderer_get_egl(struct wlr_renderer *renderer);
bool wlr_gles2_renderer_check_ext(struct wlr_renderer *renderer,
const char *ext);
bool wlr_gles2_renderer_check_ext(struct wlr_renderer *renderer, const char *ext);
GLuint wlr_gles2_renderer_get_buffer_fbo(struct wlr_renderer *renderer, struct wlr_buffer *buffer);
struct wlr_gles2_texture_attribs {
GLenum target; /* either GL_TEXTURE_2D or GL_TEXTURE_EXTERNAL_OES */

20
render/gles2/renderer.c
View file

@ -271,6 +271,26 @@ static struct wlr_render_pass *gles2_begin_buffer_pass(struct wlr_renderer *wlr_
return &pass->base;
}
GLuint wlr_gles2_renderer_get_buffer_fbo(struct wlr_renderer *wlr_renderer,
struct wlr_buffer *wlr_buffer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
GLuint fbo = 0;
struct wlr_egl_context prev_ctx = {0};
wlr_egl_save_context(&prev_ctx);
if (!wlr_egl_make_current(renderer->egl)) {
return 0;
}
struct wlr_gles2_buffer *buffer = gles2_buffer_get_or_create(renderer, wlr_buffer);
if (buffer) {
fbo = gles2_buffer_get_fbo(buffer);
}
wlr_egl_restore_context(&prev_ctx);
return fbo;
}
static struct wlr_render_timer *gles2_render_timer_create(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
if (!renderer->exts.EXT_disjoint_timer_query) {