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authorSimon Ser <contact@emersion.fr>2020-07-28 16:56:23 +0200
committerSimon Ser <contact@emersion.fr>2020-11-15 22:48:42 +0100
commit6136fe87d186dc66503d7acb36b5c7c81e808788 (patch)
tree1e26b19cc074a4b8cea1e113c2414f11304d41b4 /render
parentc88c54fb385a9fe29f79db2ece3e8ebba0edd0a3 (diff)
render/gles2: implement wlr_renderer_bind_buffer
Diffstat (limited to 'render')
-rw-r--r--render/gles2/renderer.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c
index 9ec87293..2ff29c11 100644
--- a/render/gles2/renderer.c
+++ b/render/gles2/renderer.c
@@ -36,6 +36,139 @@ static struct wlr_gles2_renderer *gles2_get_renderer_in_context(
return renderer;
}
+static void destroy_buffer(struct wlr_gles2_buffer *buffer) {
+ wl_list_remove(&buffer->link);
+ wl_list_remove(&buffer->buffer_destroy.link);
+
+ wlr_egl_make_current(buffer->renderer->egl, EGL_NO_SURFACE, NULL);
+
+ push_gles2_debug(buffer->renderer);
+
+ glDeleteFramebuffers(1, &buffer->fbo);
+ glDeleteRenderbuffers(1, &buffer->rbo);
+
+ pop_gles2_debug(buffer->renderer);
+
+ wlr_egl_destroy_image(buffer->renderer->egl, buffer->image);
+ wlr_egl_unset_current(buffer->renderer->egl);
+ free(buffer);
+}
+
+static struct wlr_gles2_buffer *get_buffer(struct wlr_gles2_renderer *renderer,
+ struct wlr_buffer *wlr_buffer) {
+ struct wlr_gles2_buffer *buffer;
+ wl_list_for_each(buffer, &renderer->buffers, link) {
+ if (buffer->buffer == wlr_buffer) {
+ return buffer;
+ }
+ }
+ return NULL;
+}
+
+static void handle_buffer_destroy(struct wl_listener *listener, void *data) {
+ struct wlr_gles2_buffer *buffer =
+ wl_container_of(listener, buffer, buffer_destroy);
+ destroy_buffer(buffer);
+}
+
+static struct wlr_gles2_buffer *create_buffer(struct wlr_gles2_renderer *renderer,
+ struct wlr_buffer *wlr_buffer) {
+ struct wlr_gles2_buffer *buffer = calloc(1, sizeof(*buffer));
+ if (buffer == NULL) {
+ wlr_log_errno(WLR_ERROR, "Allocation failed");
+ return NULL;
+ }
+ buffer->buffer = wlr_buffer;
+ buffer->renderer = renderer;
+
+ struct wlr_dmabuf_attributes dmabuf = {0};
+ if (!wlr_buffer_get_dmabuf(wlr_buffer, &dmabuf)) {
+ goto error_buffer;
+ }
+
+ bool external_only;
+ buffer->image = wlr_egl_create_image_from_dmabuf(renderer->egl,
+ &dmabuf, &external_only);
+ if (buffer->image == EGL_NO_IMAGE_KHR) {
+ goto error_buffer;
+ }
+
+ 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;
+ }
+
+ buffer->buffer_destroy.notify = handle_buffer_destroy;
+ wl_signal_add(&wlr_buffer->events.destroy, &buffer->buffer_destroy);
+
+ wl_list_insert(&renderer->buffers, &buffer->link);
+
+ wlr_log(WLR_DEBUG, "Created GL FBO for buffer %dx%d",
+ wlr_buffer->width, wlr_buffer->height);
+
+ return buffer;
+
+error_image:
+ wlr_egl_destroy_image(renderer->egl, buffer->image);
+error_buffer:
+ free(buffer);
+ return NULL;
+}
+
+static bool gles2_bind_buffer(struct wlr_renderer *wlr_renderer,
+ struct wlr_buffer *wlr_buffer) {
+ struct wlr_gles2_renderer *renderer =
+ gles2_get_renderer_in_context(wlr_renderer);
+
+ if (renderer->current_buffer != NULL) {
+ push_gles2_debug(renderer);
+ glFlush();
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ pop_gles2_debug(renderer);
+
+ wlr_buffer_unlock(renderer->current_buffer->buffer);
+ renderer->current_buffer = NULL;
+ }
+
+ if (wlr_buffer == NULL) {
+ return true;
+ }
+
+ struct wlr_gles2_buffer *buffer = get_buffer(renderer, wlr_buffer);
+ if (buffer == NULL) {
+ buffer = create_buffer(renderer, wlr_buffer);
+ }
+ if (buffer == NULL) {
+ return false;
+ }
+
+ wlr_buffer_lock(wlr_buffer);
+ renderer->current_buffer = buffer;
+
+ push_gles2_debug(renderer);
+ glBindFramebuffer(GL_FRAMEBUFFER, renderer->current_buffer->fbo);
+ pop_gles2_debug(renderer);
+
+ return true;
+}
+
static void gles2_begin(struct wlr_renderer *wlr_renderer, uint32_t width,
uint32_t height) {
struct wlr_gles2_renderer *renderer =
@@ -477,6 +610,11 @@ static void gles2_destroy(struct wlr_renderer *wlr_renderer) {
wlr_egl_make_current(renderer->egl, EGL_NO_SURFACE, NULL);
+ struct wlr_gles2_buffer *buffer, *buffer_tmp;
+ wl_list_for_each_safe(buffer, buffer_tmp, &renderer->buffers, link) {
+ destroy_buffer(buffer);
+ }
+
push_gles2_debug(renderer);
glDeleteProgram(renderer->shaders.quad.program);
glDeleteProgram(renderer->shaders.ellipse.program);
@@ -497,6 +635,7 @@ static void gles2_destroy(struct wlr_renderer *wlr_renderer) {
static const struct wlr_renderer_impl renderer_impl = {
.destroy = gles2_destroy,
+ .bind_buffer = gles2_bind_buffer,
.begin = gles2_begin,
.end = gles2_end,
.clear = gles2_clear,
@@ -668,6 +807,8 @@ struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
}
wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl);
+ wl_list_init(&renderer->buffers);
+
renderer->egl = egl;
renderer->exts_str = exts_str;