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-rw-r--r--render/egl.c61
-rw-r--r--render/glapi.txt8
-rw-r--r--render/gles2/renderer.c39
-rw-r--r--render/meson.build20
-rw-r--r--render/wlr_renderer.c5
5 files changed, 67 insertions, 66 deletions
diff --git a/render/egl.c b/render/egl.c
index 82dea50c..9815b923 100644
--- a/render/egl.c
+++ b/render/egl.c
@@ -4,6 +4,7 @@
#include <stdlib.h>
#include <wlr/util/log.h>
#include <wlr/egl.h>
+#include "render/glapi.h"
// Extension documentation
// https://www.khronos.org/registry/EGL/extensions/KHR/EGL_KHR_image_base.txt.
@@ -46,27 +47,6 @@ const char *egl_error(void) {
}
}
-static bool egl_exts(struct wlr_egl *egl) {
- egl->get_platform_display = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
- eglGetProcAddress("eglGetPlatformDisplayEXT");
-
- if (!egl->get_platform_display) {
- wlr_log(L_ERROR, "Failed to load EGL extension 'eglGetPlatformDisplayEXT'");
- return false;
- }
-
- egl->create_platform_window_surface = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
- eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
-
- if (!egl->create_platform_window_surface) {
- wlr_log(L_ERROR,
- "Failed to load EGL extension 'eglCreatePlatformWindowSurfaceEXT'");
- return false;
- }
-
- return true;
-}
-
static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLint visual_id) {
EGLint count = 0, matched = 0, ret;
@@ -103,7 +83,7 @@ static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLint visual_id) {
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
void *remote_display) {
- if (!egl_exts(egl)) {
+ if (!load_glapi()) {
return false;
}
@@ -112,7 +92,7 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
goto error;
}
- egl->display = egl->get_platform_display(platform, remote_display, NULL);
+ egl->display = eglGetPlatformDisplayEXT(platform, remote_display, NULL);
if (egl->display == EGL_NO_DISPLAY) {
wlr_log(L_ERROR, "Failed to create EGL display: %s", egl_error());
goto error;
@@ -142,22 +122,11 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl->context);
egl->egl_exts = eglQueryString(egl->display, EGL_EXTENSIONS);
if (strstr(egl->egl_exts, "EGL_WL_bind_wayland_display") == NULL ||
- strstr(egl->egl_exts, "EGL_KHR_image_base") == NULL) {
+ strstr(egl->egl_exts, "EGL_KHR_image_base") == NULL) {
wlr_log(L_ERROR, "Required egl extensions not supported");
goto error;
}
- egl->eglCreateImageKHR = (PFNEGLCREATEIMAGEKHRPROC)
- eglGetProcAddress("eglCreateImageKHR");
- egl->eglDestroyImageKHR = (PFNEGLDESTROYIMAGEKHRPROC)
- eglGetProcAddress("eglDestroyImageKHR");
- egl->eglQueryWaylandBufferWL = (PFNEGLQUERYWAYLANDBUFFERWL)
- (void*) eglGetProcAddress("eglQueryWaylandBufferWL");
- egl->eglBindWaylandDisplayWL = (PFNEGLBINDWAYLANDDISPLAYWL)
- (void*) eglGetProcAddress("eglBindWaylandDisplayWL");
- egl->eglUnbindWaylandDisplayWL = (PFNEGLUNBINDWAYLANDDISPLAYWL)
- (void*) eglGetProcAddress("eglUnbindWaylandDisplayWL");
-
egl->gl_exts = (const char*) glGetString(GL_EXTENSIONS);
wlr_log(L_INFO, "Using EGL %d.%d", (int)major, (int)minor);
wlr_log(L_INFO, "Supported EGL extensions: %s", egl->egl_exts);
@@ -174,8 +143,8 @@ error:
void wlr_egl_free(struct wlr_egl *egl) {
eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
- if (egl->wl_display && egl->eglUnbindWaylandDisplayWL) {
- egl->eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
+ if (egl->wl_display && eglUnbindWaylandDisplayWL) {
+ eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
}
eglDestroyContext(egl->display, egl->context);
@@ -184,11 +153,11 @@ void wlr_egl_free(struct wlr_egl *egl) {
}
bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display) {
- if (!egl->eglBindWaylandDisplayWL) {
+ if (!eglBindWaylandDisplayWL) {
return false;
}
- if (egl->eglBindWaylandDisplayWL(egl->display, local_display)) {
+ if (eglBindWaylandDisplayWL(egl->display, local_display)) {
egl->wl_display = local_display;
return true;
}
@@ -198,33 +167,33 @@ bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display)
bool wlr_egl_query_buffer(struct wlr_egl *egl, struct wl_resource *buf,
int attrib, int *value) {
- if (!egl->eglQueryWaylandBufferWL) {
+ if (!eglQueryWaylandBufferWL) {
return false;
}
- return egl->eglQueryWaylandBufferWL(egl->display, buf, attrib, value);
+ return eglQueryWaylandBufferWL(egl->display, buf, attrib, value);
}
EGLImage wlr_egl_create_image(struct wlr_egl *egl, EGLenum target,
EGLClientBuffer buffer, const EGLint *attribs) {
- if (!egl->eglCreateImageKHR) {
+ if (!eglCreateImageKHR) {
return false;
}
- return egl->eglCreateImageKHR(egl->display, egl->context, target,
+ return eglCreateImageKHR(egl->display, egl->context, target,
buffer, attribs);
}
bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImage image) {
- if (!egl->eglDestroyImageKHR) {
+ if (!eglDestroyImageKHR) {
return false;
}
- egl->eglDestroyImageKHR(egl->display, image);
+ eglDestroyImageKHR(egl->display, image);
return true;
}
EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) {
- EGLSurface surf = egl->create_platform_window_surface(egl->display, egl->config,
+ EGLSurface surf = eglCreatePlatformWindowSurfaceEXT(egl->display, egl->config,
window, NULL);
if (surf == EGL_NO_SURFACE) {
wlr_log(L_ERROR, "Failed to create EGL surface: %s", egl_error());
diff --git a/render/glapi.txt b/render/glapi.txt
new file mode 100644
index 00000000..81791204
--- /dev/null
+++ b/render/glapi.txt
@@ -0,0 +1,8 @@
+eglGetPlatformDisplayEXT
+eglCreatePlatformWindowSurfaceEXT
+-eglCreateImageKHR
+-eglDestroyImageKHR
+-eglQueryWaylandBufferWL
+-eglBindWaylandDisplayWL
+-eglUnbindWaylandDisplayWL
+-glEGLImageTargetTexture2DOES
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c
index d6c22ebe..94c50b9a 100644
--- a/render/gles2/renderer.c
+++ b/render/gles2/renderer.c
@@ -12,8 +12,8 @@
#include <wlr/render/matrix.h>
#include <wlr/util/log.h>
#include "render/gles2.h"
+#include "render/glapi.h"
-PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES = NULL;
struct shaders shaders;
static bool compile_shader(GLuint type, const GLchar *src, GLuint *shader) {
@@ -101,25 +101,7 @@ error:
wlr_log(L_ERROR, "Failed to set up default shaders!");
}
-static void init_image_ext() {
- if (glEGLImageTargetTexture2DOES) {
- return;
- }
-
- const char *exts = (const char*) glGetString(GL_EXTENSIONS);
- if (strstr(exts, "GL_OES_EGL_image_external")) {
- glEGLImageTargetTexture2DOES = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)
- eglGetProcAddress("glEGLImageTargetTexture2DOES");
- }
-
- if (!glEGLImageTargetTexture2DOES) {
- wlr_log(L_INFO, "Failed to load glEGLImageTargetTexture2DOES "
- "Will not be able to attach drm buffers");
- }
-}
-
static void init_globals() {
- init_image_ext();
init_default_shaders();
}
@@ -226,7 +208,23 @@ static bool wlr_gles2_buffer_is_drm(struct wlr_renderer *_renderer,
(struct wlr_gles2_renderer *)_renderer;
EGLint format;
return wlr_egl_query_buffer(renderer->egl, buffer,
- EGL_TEXTURE_FORMAT, &format);
+ EGL_TEXTURE_FORMAT, &format);
+}
+
+static void rgba_to_argb(uint32_t *data, size_t height, size_t stride) {
+ size_t n = height*stride/4;
+ for (size_t i = 0; i < n; ++i) {
+ uint32_t v = data[i];
+ uint32_t rgb = (v & 0xffffff00) >> 8;
+ uint32_t a = v & 0x000000ff;
+ data[i] = rgb | (a << 24);
+ }
+}
+
+static void wlr_gles2_read_pixels(struct wlr_renderer *renderer, int x, int y,
+ int width, int height, void *out_data) {
+ glReadPixels(x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, out_data);
+ rgba_to_argb(out_data, height, width*4);
}
static struct wlr_renderer_impl wlr_renderer_impl = {
@@ -238,6 +236,7 @@ static struct wlr_renderer_impl wlr_renderer_impl = {
.render_ellipse = wlr_gles2_render_ellipse,
.formats = wlr_gles2_formats,
.buffer_is_drm = wlr_gles2_buffer_is_drm,
+ .read_pixels = wlr_gles2_read_pixels,
};
struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_backend *backend) {
diff --git a/render/meson.build b/render/meson.build
index dc0ceeb9..749d1393 100644
--- a/render/meson.build
+++ b/render/meson.build
@@ -1,3 +1,16 @@
+glgen = find_program('../glgen.sh')
+
+glapi_c = custom_target('glapi.c',
+ input: 'glapi.txt',
+ output: '@BASENAME@.c',
+ command: [glgen, '@INPUT@', '@OUTPUT@'],
+)
+glapi_h = custom_target('glapi.h',
+ input: 'glapi.txt',
+ output: '@BASENAME@.h',
+ command: [glgen, '@INPUT@', '@OUTPUT@'],
+)
+
lib_wlr_render = static_library(
'wlr_render',
files(
@@ -11,6 +24,13 @@ lib_wlr_render = static_library(
'wlr_renderer.c',
'wlr_texture.c',
),
+ glapi_c,
+ glapi_h,
include_directories: wlr_inc,
dependencies: [glesv2, egl],
)
+
+wlr_render = declare_dependency(
+ link_with: lib_wlr_render,
+ sources: glapi_h,
+)
diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c
index fec5e38a..ef0c31be 100644
--- a/render/wlr_renderer.c
+++ b/render/wlr_renderer.c
@@ -51,3 +51,8 @@ bool wlr_renderer_buffer_is_drm(struct wlr_renderer *r,
struct wl_resource *buffer) {
return r->impl->buffer_is_drm(r, buffer);
}
+
+void wlr_renderer_read_pixels(struct wlr_renderer *r, int x, int y,
+ int width, int height, void *out_data) {
+ r->impl->read_pixels(r, x, y, width, height, out_data);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-04 05:44:49 +0000