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render/gles2: Lazily create buffer fbo

This commit is contained in:
Alexander Orzechowski 2023-11-29 13:58:42 -05:00
parent 67c77fdbdc
commit 0d9cd6932a
3 changed files with 48 additions and 27 deletions
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2
include/render/gles2.h
View File

@ -148,6 +148,8 @@ const struct wlr_gles2_pixel_format *get_gles2_format_from_gl(
const uint32_t *get_gles2_shm_formats(const struct wlr_gles2_renderer *renderer,
size_t *len);
GLuint gles2_buffer_get_fbo(struct wlr_gles2_buffer *buffer);
struct wlr_gles2_renderer *gles2_get_renderer(
struct wlr_renderer *wlr_renderer);
struct wlr_gles2_render_timer *gles2_get_render_timer(

7
render/gles2/pass.c
View File

@ -260,6 +260,11 @@ struct wlr_gles2_render_pass *begin_gles2_buffer_pass(struct wlr_gles2_buffer *b
}
}
GLint fbo = gles2_buffer_get_fbo(buffer);
if (!fbo) {
return NULL;
}
struct wlr_gles2_render_pass *pass = calloc(1, sizeof(*pass));
if (pass == NULL) {
return NULL;
@ -274,7 +279,7 @@ struct wlr_gles2_render_pass *begin_gles2_buffer_pass(struct wlr_gles2_buffer *b
WL_OUTPUT_TRANSFORM_FLIPPED_180);
push_gles2_debug(renderer);
glBindFramebuffer(GL_FRAMEBUFFER, buffer->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glViewport(0, 0, wlr_buffer->width, wlr_buffer->height);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);

66
render/gles2/renderer.c
View File

@ -93,6 +93,39 @@ static const struct wlr_addon_interface buffer_addon_impl = {
.destroy = handle_buffer_destroy,
};
GLuint gles2_buffer_get_fbo(struct wlr_gles2_buffer *buffer) {
if (buffer->fbo) {
return buffer->fbo;
}
push_gles2_debug(buffer->renderer);
if (!buffer->rbo) {
glGenRenderbuffers(1, &buffer->rbo);
glBindRenderbuffer(GL_RENDERBUFFER, buffer->rbo);
buffer->renderer->procs.glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
buffer->image);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
}
glGenFramebuffers(1, &buffer->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, buffer->fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER, buffer->rbo);
GLenum fb_status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
if (fb_status != GL_FRAMEBUFFER_COMPLETE) {
wlr_log(WLR_ERROR, "Failed to create FBO");
glDeleteFramebuffers(1, &buffer->fbo);
buffer->fbo = 0;
}
pop_gles2_debug(buffer->renderer);
return buffer->fbo;
}
static struct wlr_gles2_buffer *get_or_create_buffer(struct wlr_gles2_renderer *renderer,
struct wlr_buffer *wlr_buffer) {
struct wlr_addon *addon =
@ -127,28 +160,6 @@ static struct wlr_gles2_buffer *get_or_create_buffer(struct wlr_gles2_renderer *
goto error_image;
}
push_gles2_debug(renderer);
glGenRenderbuffers(1, &buffer->rbo);
glBindRenderbuffer(GL_RENDERBUFFER, buffer->rbo);
renderer->procs.glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
buffer->image);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glGenFramebuffers(1, &buffer->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, buffer->fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER, buffer->rbo);
GLenum fb_status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
pop_gles2_debug(renderer);
if (fb_status != GL_FRAMEBUFFER_COMPLETE) {
wlr_log(WLR_ERROR, "Failed to create FBO");
goto error_image;
}
wlr_addon_init(&buffer->addon, &wlr_buffer->addons, renderer,
&buffer_addon_impl);
@ -159,8 +170,6 @@ static struct wlr_gles2_buffer *get_or_create_buffer(struct wlr_gles2_renderer *
return buffer;
error_image:
wlr_egl_destroy_image(renderer->egl, buffer->image);
error_buffer:
free(buffer);
return NULL;
@ -189,6 +198,11 @@ static bool gles2_bind_buffer(struct wlr_renderer *wlr_renderer,
wlr_egl_make_current(renderer->egl);
GLint fbo = gles2_buffer_get_fbo(renderer->current_buffer);
if (!fbo) {
return false;
}
struct wlr_gles2_buffer *buffer = get_or_create_buffer(renderer, wlr_buffer);
if (buffer == NULL) {
return false;
@ -198,7 +212,7 @@ static bool gles2_bind_buffer(struct wlr_renderer *wlr_renderer,
renderer->current_buffer = buffer;
push_gles2_debug(renderer);
glBindFramebuffer(GL_FRAMEBUFFER, renderer->current_buffer->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
pop_gles2_debug(renderer);
return true;
@ -872,5 +886,5 @@ bool wlr_gles2_renderer_check_ext(struct wlr_renderer *wlr_renderer,
GLuint wlr_gles2_renderer_get_current_fbo(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
assert(renderer->current_buffer);
return renderer->current_buffer->fbo;
return gles2_buffer_get_fbo(renderer->current_buffer);
}