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https://github.com/hyprwm/wlroots-hyprland.git
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abf527b075
When importing a DMA-BUF wlr_buffer as a wlr_texture, the GLES2 renderer caches the result, in case the buffer is used for texturing again in the future. When the wlr_texture is destroyed by the caller, the wlr_buffer is unref'ed, but the wlr_gles2_texture is kept around. This is fine because wlr_gles2_texture listens for wlr_buffer's destroy event to avoid any use-after-free. However, with this logic wlr_texture_destroy doesn't "really" destroy the wlr_gles2_texture. It just decrements the wlr_buffer ref'count. Each wlr_texture_destroy call must have a matching prior wlr_texture_create_from_buffer call or the ref'counting will go south. Wehn destroying the renderer, we don't want to decrement any wlr_buffer ref'count. Instead, we want to go through any cached wlr_gles2_texture and destroy our GL state. So instead of calling wlr_texture_destroy, we need to call our internal gles2_texture_destroy function. Closes: https://github.com/swaywm/wlroots/issues/2941
138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
#ifndef RENDER_GLES2_H
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#define RENDER_GLES2_H
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include <wlr/backend.h>
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#include <wlr/render/egl.h>
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#include <wlr/render/gles2.h>
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#include <wlr/render/interface.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/render/wlr_texture.h>
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#include <wlr/util/log.h>
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struct wlr_gles2_pixel_format {
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uint32_t drm_format;
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GLint gl_format, gl_type;
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bool has_alpha;
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};
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struct wlr_gles2_tex_shader {
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GLuint program;
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GLint proj;
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GLint invert_y;
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GLint tex;
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GLint alpha;
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GLint pos_attrib;
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GLint tex_attrib;
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};
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struct wlr_gles2_renderer {
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struct wlr_renderer wlr_renderer;
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float projection[9];
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struct wlr_egl *egl;
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int drm_fd;
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const char *exts_str;
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struct {
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bool read_format_bgra_ext;
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bool debug_khr;
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bool egl_image_external_oes;
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bool egl_image_oes;
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} exts;
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struct {
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PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
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PFNGLDEBUGMESSAGECALLBACKKHRPROC glDebugMessageCallbackKHR;
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PFNGLDEBUGMESSAGECONTROLKHRPROC glDebugMessageControlKHR;
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PFNGLPOPDEBUGGROUPKHRPROC glPopDebugGroupKHR;
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PFNGLPUSHDEBUGGROUPKHRPROC glPushDebugGroupKHR;
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PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC glEGLImageTargetRenderbufferStorageOES;
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} procs;
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struct {
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struct {
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GLuint program;
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GLint proj;
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GLint color;
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GLint pos_attrib;
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} quad;
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struct wlr_gles2_tex_shader tex_rgba;
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struct wlr_gles2_tex_shader tex_rgbx;
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struct wlr_gles2_tex_shader tex_ext;
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} shaders;
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struct wl_list buffers; // wlr_gles2_buffer.link
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struct wl_list textures; // wlr_gles2_texture.link
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struct wlr_gles2_buffer *current_buffer;
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uint32_t viewport_width, viewport_height;
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};
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struct wlr_gles2_buffer {
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struct wlr_buffer *buffer;
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struct wlr_gles2_renderer *renderer;
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struct wl_list link; // wlr_gles2_renderer.buffers
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EGLImageKHR image;
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GLuint rbo;
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GLuint fbo;
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struct wl_listener buffer_destroy;
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};
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struct wlr_gles2_texture {
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struct wlr_texture wlr_texture;
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struct wlr_gles2_renderer *renderer;
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struct wl_list link; // wlr_gles2_renderer.textures
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// Basically:
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// GL_TEXTURE_2D == mutable
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// GL_TEXTURE_EXTERNAL_OES == immutable
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GLenum target;
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GLuint tex;
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EGLImageKHR image;
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bool inverted_y;
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bool has_alpha;
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// Only affects target == GL_TEXTURE_2D
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uint32_t drm_format; // used to interpret upload data
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// If imported from a wlr_buffer
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struct wlr_buffer *buffer;
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struct wl_listener buffer_destroy;
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};
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const struct wlr_gles2_pixel_format *get_gles2_format_from_drm(uint32_t fmt);
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const struct wlr_gles2_pixel_format *get_gles2_format_from_gl(
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GLint gl_format, GLint gl_type, bool alpha);
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const uint32_t *get_gles2_shm_formats(size_t *len);
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struct wlr_gles2_renderer *gles2_get_renderer(
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struct wlr_renderer *wlr_renderer);
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struct wlr_gles2_texture *gles2_get_texture(
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struct wlr_texture *wlr_texture);
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struct wlr_texture *gles2_texture_from_pixels(struct wlr_renderer *wlr_renderer,
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uint32_t fmt, uint32_t stride, uint32_t width, uint32_t height,
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const void *data);
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struct wlr_texture *gles2_texture_from_wl_drm(struct wlr_renderer *wlr_renderer,
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struct wl_resource *data);
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struct wlr_texture *gles2_texture_from_dmabuf(struct wlr_renderer *wlr_renderer,
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struct wlr_dmabuf_attributes *attribs);
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struct wlr_texture *gles2_texture_from_buffer(struct wlr_renderer *wlr_renderer,
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struct wlr_buffer *buffer);
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void gles2_texture_destroy(struct wlr_gles2_texture *texture);
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void push_gles2_debug_(struct wlr_gles2_renderer *renderer,
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const char *file, const char *func);
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#define push_gles2_debug(renderer) push_gles2_debug_(renderer, _WLR_FILENAME, __func__)
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void pop_gles2_debug(struct wlr_gles2_renderer *renderer);
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#endif
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