141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <wlr/interfaces/wlr_buffer.h>
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#include <wlr/render/interface.h>
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#include <wlr/render/allocator.h>
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#include "log.h"
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#include "render/egl.h"
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#include "render/gles2.h"
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#include "sway/desktop/fx_renderer/fx_renderer.h"
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static void handle_buffer_destroy(struct wlr_addon *addon) {
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struct fx_framebuffer *buffer =
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wl_container_of(addon, buffer, addon);
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fx_framebuffer_release(buffer);
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}
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static const struct wlr_addon_interface buffer_addon_impl = {
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.name = "fx_framebuffer",
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.destroy = handle_buffer_destroy,
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};
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struct fx_framebuffer fx_framebuffer_create(void) {
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return (struct fx_framebuffer) {
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.initialized = false,
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.fbo = -1,
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.rbo = -1,
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.wlr_buffer = NULL,
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.image = NULL,
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};
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}
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void fx_framebuffer_bind(struct fx_framebuffer *fx_buffer) {
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glBindFramebuffer(GL_FRAMEBUFFER, fx_buffer->fbo);
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}
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void fx_framebuffer_bind_wlr_fbo(struct fx_renderer *renderer) {
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glBindFramebuffer(GL_FRAMEBUFFER, renderer->wlr_main_buffer_fbo);
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}
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void fx_framebuffer_update(struct fx_renderer *fx_renderer, struct fx_framebuffer *fx_buffer,
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int width, int height) {
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struct wlr_output *output = fx_renderer->wlr_output;
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fx_buffer->renderer = fx_renderer;
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bool first_alloc = false;
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if (!fx_buffer->wlr_buffer ||
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fx_buffer->wlr_buffer->width != width ||
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fx_buffer->wlr_buffer->height != height) {
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wlr_buffer_drop(fx_buffer->wlr_buffer);
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fx_buffer->wlr_buffer = wlr_allocator_create_buffer(output->allocator,
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width, height, fx_renderer->drm_format);
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first_alloc = true;
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}
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if (fx_buffer->fbo == (uint32_t) -1 || first_alloc) {
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glGenFramebuffers(1, &fx_buffer->fbo);
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first_alloc = true;
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}
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if (fx_buffer->rbo == (uint32_t) -1 || first_alloc) {
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struct wlr_dmabuf_attributes dmabuf = {0};
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if (!wlr_buffer_get_dmabuf(fx_buffer->wlr_buffer, &dmabuf)) {
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goto error_buffer;
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}
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bool external_only;
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fx_buffer->image = wlr_egl_create_image_from_dmabuf(fx_renderer->egl,
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&dmabuf, &external_only);
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if (fx_buffer->image == EGL_NO_IMAGE_KHR) {
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goto error_buffer;
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}
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glGenRenderbuffers(1, &fx_buffer->rbo);
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glBindRenderbuffer(GL_RENDERBUFFER, fx_buffer->rbo);
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fx_renderer->procs.glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
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fx_buffer->image);
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glBindRenderbuffer(GL_RENDERBUFFER, 0);
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glBindFramebuffer(GL_FRAMEBUFFER, fx_buffer->fbo);
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
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GL_RENDERBUFFER, fx_buffer->rbo);
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GLenum fb_status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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if (fb_status != GL_FRAMEBUFFER_COMPLETE) {
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wlr_log(WLR_ERROR, "Failed to create FBO");
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goto error_image;
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}
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}
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if (!fx_buffer->initialized) {
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fx_buffer->initialized = true;
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wlr_addon_init(&fx_buffer->addon, &fx_buffer->wlr_buffer->addons, fx_renderer,
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&buffer_addon_impl);
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wl_list_insert(&fx_renderer->buffers, &fx_buffer->link);
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}
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if (first_alloc) {
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wlr_log(WLR_DEBUG, "Created GL FBO for buffer %dx%d",
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fx_buffer->wlr_buffer->width, fx_buffer->wlr_buffer->height);
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}
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return;
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error_image:
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wlr_egl_destroy_image(fx_renderer->egl, fx_buffer->image);
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error_buffer:
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wlr_log(WLR_ERROR, "Could not create FX buffer! Aborting...");
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abort();
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}
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void fx_framebuffer_release(struct fx_framebuffer *fx_buffer) {
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// Release the framebuffer
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struct wlr_egl_context prev_ctx;
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if (fx_buffer->initialized) {
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wl_list_remove(&fx_buffer->link);
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wlr_addon_finish(&fx_buffer->addon);
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(fx_buffer->renderer->egl);
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}
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glDeleteFramebuffers(1, &fx_buffer->fbo);
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fx_buffer->fbo = -1;
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glDeleteRenderbuffers(1, &fx_buffer->rbo);
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fx_buffer->rbo = -1;
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if (fx_buffer->initialized) {
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wlr_egl_destroy_image(fx_buffer->renderer->egl, fx_buffer->image);
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wlr_egl_restore_context(&prev_ctx);
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}
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fx_buffer->initialized = false;
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}
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