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-rw-r--r--render/gles2/pixel_format.c20
-rw-r--r--render/gles2/renderer.c105
-rw-r--r--render/wlr_renderer.c9
3 files changed, 115 insertions, 19 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..a5521909 100644
--- a/render/gles2/renderer.c
+++ b/render/gles2/renderer.c
@@ -135,6 +135,12 @@ static bool gles2_render_texture_with_matrix(struct wlr_renderer *wlr_renderer,
case WLR_GLES2_TEXTURE_DMABUF:
shader = &renderer->shaders.tex_ext;
target = GL_TEXTURE_EXTERNAL_OES;
+
+ if (!renderer->exts.egl_image_external_oes) {
+ wlr_log(WLR_ERROR, "Failed to render texture: "
+ "GL_TEXTURE_EXTERNAL_OES not supported");
+ return false;
+ }
break;
}
@@ -207,13 +213,17 @@ 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 +259,33 @@ 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 +299,12 @@ 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 +337,6 @@ 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 +380,7 @@ 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 +398,13 @@ 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 +505,24 @@ 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 +544,32 @@ 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;
+ renderer->exts.egl_image_external_oes =
+ check_gl_ext(renderer->exts_str, "GL_OES_EGL_image_external") &&
+ glEGLImageTargetTexture2DOES;
+
+ if (renderer->exts.debug_khr) {
glEnable(GL_DEBUG_OUTPUT_KHR);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR);
glDebugMessageCallbackKHR(gles2_log, NULL);
@@ -545,7 +620,7 @@ struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
renderer->shaders.tex_rgbx.tex = glGetUniformLocation(prog, "tex");
renderer->shaders.tex_rgbx.alpha = glGetUniformLocation(prog, "alpha");
- if (glEGLImageTargetTexture2DOES) {
+ if (renderer->exts.egl_image_external_oes) {
renderer->shaders.tex_ext.program = prog =
link_program(tex_vertex_src, tex_fragment_src_external);
if (!renderer->shaders.tex_ext.program) {
@@ -570,7 +645,7 @@ error:
POP_GLES2_DEBUG;
- if (glDebugMessageCallbackKHR) {
+ if (renderer->exts.debug_khr) {
glDisable(GL_DEBUG_OUTPUT_KHR);
glDebugMessageCallbackKHR(NULL, NULL);
}
diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c
index 31bf2b18..10dc6db2 100644
--- a/render/wlr_renderer.c
+++ b/render/wlr_renderer.c
@@ -139,6 +139,15 @@ int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *r, int format,
return r->impl->get_dmabuf_modifiers(r, format, modifiers);
}
+bool wlr_renderer_preferred_read_format(struct wlr_renderer *r,
+ enum wl_shm_format *fmt) {
+ if (!r->impl->preferred_read_format || !r->impl->read_pixels) {
+ return false;
+ }
+ *fmt = r->impl->preferred_read_format(r);
+ return true;
+}
+
bool wlr_renderer_read_pixels(struct wlr_renderer *r, enum wl_shm_format fmt,
uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 05:11:38 +0000