diff options
Diffstat (limited to 'render/gles2')
| -rw-r--r-- | render/gles2/pixel_format.c | 20 | ||||
| -rw-r--r-- | render/gles2/renderer.c | 94 |
2 files changed, 96 insertions, 18 deletions
diff --git a/render/gles2/pixel_format.c b/render/gles2/pixel_format.c index 6f42e72e..a4b4c101 100644 --- a/render/gles2/pixel_format.c +++ b/render/gles2/pixel_format.c @@ -3,9 +3,9 @@ #include "render/gles2.h" /* -* The wayland formats are little endian while the GL formats are big endian, -* so WL_SHM_FORMAT_ARGB8888 is actually compatible with GL_BGRA_EXT. -*/ + * The wayland formats are little endian while the GL formats are big endian, + * so WL_SHM_FORMAT_ARGB8888 is actually compatible with GL_BGRA_EXT. + */ static const struct wlr_gles2_pixel_format formats[] = { { .wl_format = WL_SHM_FORMAT_ARGB8888, @@ -60,7 +60,19 @@ const struct wlr_gles2_pixel_format *get_gles2_format_from_wl( return NULL; } -const enum wl_shm_format *get_gles2_formats(size_t *len) { +const struct wlr_gles2_pixel_format *get_gles2_format_from_gl( + GLint gl_format, GLint gl_type, bool alpha) { + for (size_t i = 0; i < sizeof(formats) / sizeof(*formats); ++i) { + if (formats[i].gl_format == gl_format && + formats[i].gl_type == gl_type && + formats[i].has_alpha == alpha) { + return &formats[i]; + } + } + return NULL; +} + +const enum wl_shm_format *get_gles2_wl_formats(size_t *len) { *len = sizeof(wl_formats) / sizeof(wl_formats[0]); return wl_formats; } diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index b6e97041..ddcd219b 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -207,13 +207,17 @@ static void gles2_render_ellipse_with_matrix(struct wlr_renderer *wlr_renderer, static const enum wl_shm_format *gles2_renderer_formats( struct wlr_renderer *wlr_renderer, size_t *len) { - return get_gles2_formats(len); + return get_gles2_wl_formats(len); +} + +static bool gles2_format_supported(struct wlr_renderer *wlr_renderer, + enum wl_shm_format wl_fmt) { + return get_gles2_format_from_wl(wl_fmt) != NULL; } static bool gles2_resource_is_wl_drm_buffer(struct wlr_renderer *wlr_renderer, struct wl_resource *resource) { - struct wlr_gles2_renderer *renderer = - gles2_get_renderer(wlr_renderer); + struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer); if (!eglQueryWaylandBufferWL) { return false; @@ -249,6 +253,33 @@ static int gles2_get_dmabuf_modifiers(struct wlr_renderer *wlr_renderer, return wlr_egl_get_dmabuf_modifiers(renderer->egl, format, modifiers); } +static enum wl_shm_format gles2_preferred_read_format( + struct wlr_renderer *wlr_renderer) { + struct wlr_gles2_renderer *renderer = + gles2_get_renderer_in_context(wlr_renderer); + + GLint gl_format = -1, gl_type = -1; + PUSH_GLES2_DEBUG; + glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &gl_format); + glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &gl_type); + POP_GLES2_DEBUG; + + EGLint alpha_size = -1; + eglGetConfigAttrib(renderer->egl->display, renderer->egl->config, + EGL_ALPHA_SIZE, &alpha_size); + + const struct wlr_gles2_pixel_format *fmt = + get_gles2_format_from_gl(gl_format, gl_type, alpha_size > 0); + if (fmt != NULL) { + return fmt->wl_format; + } + + if (renderer->exts.read_format_bgra_ext) { + return WL_SHM_FORMAT_XRGB8888; + } + return WL_SHM_FORMAT_XBGR8888; +} + static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer, enum wl_shm_format wl_fmt, uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height, uint32_t src_x, uint32_t src_y, @@ -262,6 +293,12 @@ static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer, return false; } + if (fmt->gl_format == GL_BGRA_EXT && !renderer->exts.read_format_bgra_ext) { + wlr_log(WLR_ERROR, + "Cannot read pixels: missing GL_EXT_read_format_bgra extension"); + return false; + } + PUSH_GLES2_DEBUG; // Make sure any pending drawing is finished before we try to read it @@ -294,11 +331,6 @@ static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer, return glGetError() == GL_NO_ERROR; } -static bool gles2_format_supported(struct wlr_renderer *wlr_renderer, - enum wl_shm_format wl_fmt) { - return get_gles2_format_from_wl(wl_fmt) != NULL; -} - static struct wlr_texture *gles2_texture_from_pixels( struct wlr_renderer *wlr_renderer, enum wl_shm_format wl_fmt, uint32_t stride, uint32_t width, uint32_t height, const void *data) { @@ -342,7 +374,7 @@ static void gles2_destroy(struct wlr_renderer *wlr_renderer) { glDeleteProgram(renderer->shaders.tex_ext.program); POP_GLES2_DEBUG; - if (glDebugMessageCallbackKHR) { + if (renderer->exts.debug_khr) { glDisable(GL_DEBUG_OUTPUT_KHR); glDebugMessageCallbackKHR(NULL, NULL); } @@ -360,12 +392,13 @@ static const struct wlr_renderer_impl renderer_impl = { .render_quad_with_matrix = gles2_render_quad_with_matrix, .render_ellipse_with_matrix = gles2_render_ellipse_with_matrix, .formats = gles2_renderer_formats, + .format_supported = gles2_format_supported, .resource_is_wl_drm_buffer = gles2_resource_is_wl_drm_buffer, .wl_drm_buffer_get_size = gles2_wl_drm_buffer_get_size, .get_dmabuf_formats = gles2_get_dmabuf_formats, .get_dmabuf_modifiers = gles2_get_dmabuf_modifiers, + .preferred_read_format = gles2_preferred_read_format, .read_pixels = gles2_read_pixels, - .format_supported = gles2_format_supported, .texture_from_pixels = gles2_texture_from_pixels, .texture_from_wl_drm = gles2_texture_from_wl_drm, .texture_from_dmabuf = gles2_texture_from_dmabuf, @@ -466,6 +499,24 @@ error: return 0; } +static bool check_gl_ext(const char *exts, const char *ext) { + size_t extlen = strlen(ext); + const char *end = exts + strlen(exts); + + while (exts < end) { + if (exts[0] == ' ') { + exts++; + continue; + } + size_t n = strcspn(exts, " "); + if (n == extlen && strncmp(ext, exts, n) == 0) { + return true; + } + exts += n; + } + return false; +} + extern const GLchar quad_vertex_src[]; extern const GLchar quad_fragment_src[]; extern const GLchar ellipse_fragment_src[]; @@ -487,14 +538,29 @@ struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) { wlr_renderer_init(&renderer->wlr_renderer, &renderer_impl); renderer->egl = egl; - wlr_egl_make_current(renderer->egl, EGL_NO_SURFACE, NULL); + if (!wlr_egl_make_current(renderer->egl, EGL_NO_SURFACE, NULL)) { + free(renderer); + return NULL; + } - renderer->exts_str = (const char*) glGetString(GL_EXTENSIONS); + renderer->exts_str = (const char *)glGetString(GL_EXTENSIONS); wlr_log(WLR_INFO, "Using %s", glGetString(GL_VERSION)); wlr_log(WLR_INFO, "GL vendor: %s", glGetString(GL_VENDOR)); wlr_log(WLR_INFO, "Supported GLES2 extensions: %s", renderer->exts_str); - if (glDebugMessageCallbackKHR && glDebugMessageControlKHR) { + if (!check_gl_ext(renderer->exts_str, "GL_EXT_texture_format_BGRA8888")) { + wlr_log(WLR_ERROR, "BGRA8888 format not supported by GLES2"); + free(renderer); + return NULL; + } + + renderer->exts.read_format_bgra_ext = + check_gl_ext(renderer->exts_str, "GL_EXT_read_format_bgra"); + renderer->exts.debug_khr = + check_gl_ext(renderer->exts_str, "GL_KHR_debug") && + glDebugMessageCallbackKHR && glDebugMessageControlKHR; + + if (renderer->exts.debug_khr) { glEnable(GL_DEBUG_OUTPUT_KHR); glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR); glDebugMessageCallbackKHR(gles2_log, NULL); @@ -570,7 +636,7 @@ error: POP_GLES2_DEBUG; - if (glDebugMessageCallbackKHR) { + if (renderer->exts.debug_khr) { glDisable(GL_DEBUG_OUTPUT_KHR); glDebugMessageCallbackKHR(NULL, NULL); } |