aboutsummaryrefslogtreecommitdiff
path: root/backend/egl.c
diff options
context:
space:
mode:
Diffstat (limited to 'backend/egl.c')
-rw-r--r--backend/egl.c260
1 files changed, 0 insertions, 260 deletions
diff --git a/backend/egl.c b/backend/egl.c
deleted file mode 100644
index 15a2c58e..00000000
--- a/backend/egl.c
+++ /dev/null
@@ -1,260 +0,0 @@
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-#include <GLES2/gl2.h>
-#include <gbm.h> // GBM_FORMAT_XRGB8888
-#include <stdlib.h>
-#include <wlr/util/log.h>
-#include "backend/egl.h"
-
-// Extension documentation
-// https://www.khronos.org/registry/EGL/extensions/KHR/EGL_KHR_image_base.txt.
-// https://cgit.freedesktop.org/mesa/mesa/tree/docs/specs/WL_bind_wayland_display.spec
-
-struct wlr_egl *egl_global;
-
-const char *egl_error(void) {
- switch (eglGetError()) {
- case EGL_SUCCESS:
- return "Success";
- case EGL_NOT_INITIALIZED:
- return "Not initialized";
- case EGL_BAD_ACCESS:
- return "Bad access";
- case EGL_BAD_ALLOC:
- return "Bad alloc";
- case EGL_BAD_ATTRIBUTE:
- return "Bad attribute";
- case EGL_BAD_CONTEXT:
- return "Bad Context";
- case EGL_BAD_CONFIG:
- return "Bad Config";
- case EGL_BAD_CURRENT_SURFACE:
- return "Bad current surface";
- case EGL_BAD_DISPLAY:
- return "Bad display";
- case EGL_BAD_SURFACE:
- return "Bad surface";
- case EGL_BAD_MATCH:
- return "Bad match";
- case EGL_BAD_PARAMETER:
- return "Bad parameter";
- case EGL_BAD_NATIVE_PIXMAP:
- return "Bad native pixmap";
- case EGL_BAD_NATIVE_WINDOW:
- return "Bad native window";
- case EGL_CONTEXT_LOST:
- return "Context lost";
- default:
- return "Unknown";
- }
-}
-
-// EGL extensions
-PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display;
-PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC create_platform_window_surface;
-
-PFNEGLCREATEIMAGEKHRPROC eglCreateImageKHR;
-PFNEGLDESTROYIMAGEKHRPROC eglDestroyImageKHR;
-PFNEGLQUERYWAYLANDBUFFERWL eglQueryWaylandBufferWL;
-PFNEGLBINDWAYLANDDISPLAYWL eglBindWaylandDisplayWL;
-PFNEGLUNBINDWAYLANDDISPLAYWL eglUnbindWaylandDisplayWL;
-
-static bool egl_exts() {
- get_platform_display = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
- eglGetProcAddress("eglGetPlatformDisplayEXT");
-
- if (!get_platform_display) {
- wlr_log(L_ERROR, "Failed to load EGL extension 'eglGetPlatformDisplayEXT'");
- return false;
- }
-
- create_platform_window_surface = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
- eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
-
- if (!get_platform_display) {
- wlr_log(L_ERROR,
- "Failed to load EGL extension 'eglCreatePlatformWindowSurfaceEXT'");
- return false;
- }
-
- return true;
-}
-
-static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLenum platform) {
- EGLint count = 0, matched = 0, ret;
-
- ret = eglGetConfigs(disp, NULL, 0, &count);
- if (ret == EGL_FALSE || count == 0) {
- wlr_log(L_ERROR, "eglGetConfigs returned no configs");
- return false;
- }
-
- EGLConfig configs[count];
-
- ret = eglChooseConfig(disp, NULL, configs, count, &matched);
- if (ret == EGL_FALSE) {
- wlr_log(L_ERROR, "eglChooseConfig failed");
- return false;
- }
-
- for (int i = 0; i < matched; ++i) {
- EGLint gbm_format;
-
- if (platform == EGL_PLATFORM_WAYLAND_EXT) {
- *out = configs[i];
- return true;
- }
-
- if (!eglGetConfigAttrib(disp,
- configs[i],
- EGL_NATIVE_VISUAL_ID,
- &gbm_format)) {
- continue;
- }
-
- if (gbm_format == GBM_FORMAT_ARGB8888) {
- *out = configs[i];
- return true;
- }
- }
-
- wlr_log(L_ERROR, "no valid egl config found");
- return false;
-}
-
-bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform,
- void *remote_display) {
- if (!egl_exts()) {
- return false;
- }
-
- if (eglBindAPI(EGL_OPENGL_ES_API) == EGL_FALSE) {
- wlr_log(L_ERROR, "Failed to bind to the OpenGL ES API: %s", egl_error());
- goto error;
- }
-
- egl->display = get_platform_display(platform, remote_display, NULL);
- if (egl->display == EGL_NO_DISPLAY) {
- wlr_log(L_ERROR, "Failed to create EGL display: %s", egl_error());
- goto error;
- }
-
- EGLint major, minor;
- if (eglInitialize(egl->display, &major, &minor) == EGL_FALSE) {
- wlr_log(L_ERROR, "Failed to initialize EGL: %s", egl_error());
- goto error;
- }
-
- if (!egl_get_config(egl->display, &egl->config, platform)) {
- wlr_log(L_ERROR, "Failed to get EGL config");
- goto error;
- }
-
- static const EGLint attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
-
- egl->context = eglCreateContext(egl->display, egl->config,
- EGL_NO_CONTEXT, attribs);
-
- if (egl->context == EGL_NO_CONTEXT) {
- wlr_log(L_ERROR, "Failed to create EGL context: %s", egl_error());
- goto error;
- }
-
- 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) {
- wlr_log(L_ERROR, "Required egl extensions not supported");
- goto error;
- }
-
- eglCreateImageKHR = (PFNEGLCREATEIMAGEKHRPROC)
- eglGetProcAddress("eglCreateImageKHR");
- eglDestroyImageKHR = (PFNEGLDESTROYIMAGEKHRPROC)
- eglGetProcAddress("eglDestroyImageKHR");
- eglQueryWaylandBufferWL = (PFNEGLQUERYWAYLANDBUFFERWL)
- (void*) eglGetProcAddress("eglQueryWaylandBufferWL");
- eglBindWaylandDisplayWL = (PFNEGLBINDWAYLANDDISPLAYWL)
- (void*) eglGetProcAddress("eglBindWaylandDisplayWL");
- eglUnbindWaylandDisplayWL = (PFNEGLUNBINDWAYLANDDISPLAYWL)
- (void*) eglGetProcAddress("eglUnbindWaylandDisplayWL");
-
- egl_global = egl;
-
- 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);
- wlr_log(L_INFO, "Using %s", glGetString(GL_VERSION));
- wlr_log(L_INFO, "Supported OpenGL ES extensions: %s", egl->gl_exts);
- return true;
-
-error:
- eglTerminate(egl->display);
- eglReleaseThread();
- eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
- return false;
-}
-
-void wlr_egl_free(struct wlr_egl *egl) {
- if (egl->wl_display && eglUnbindWaylandDisplayWL) {
- eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
- }
-
- eglDestroyContext(egl->display, egl->context);
- eglTerminate(egl->display);
- eglReleaseThread();
- eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
-
- if (egl_global == egl)
- egl_global = NULL;
-}
-
-bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display) {
- if (!eglBindWaylandDisplayWL) {
- return false;
- }
-
- if (eglBindWaylandDisplayWL(egl->display, local_display)) {
- egl->wl_display = local_display;
- return true;
- }
-
- return false;
-}
-
-bool wlr_egl_query_buffer(struct wl_resource *buf, int attrib, int *value) {
- if (!egl_global || !eglQueryWaylandBufferWL) {
- return false;
- }
-
- return eglQueryWaylandBufferWL(egl_global->display, buf, attrib, value);
-}
-
-EGLImage wlr_egl_create_image(EGLenum target,
- EGLClientBuffer buffer, const EGLint *attribs) {
- if (!egl_global || !eglCreateImageKHR) {
- return false;
- }
-
- return eglCreateImageKHR(egl_global->display, egl_global->context, target,
- buffer, attribs);
-}
-
-bool wlr_egl_destroy_image(EGLImage image) {
- if (!egl_global || !eglDestroyImageKHR) {
- return false;
- }
-
- eglDestroyImageKHR(egl_global->display, image);
- return true;
-}
-
-EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) {
- EGLSurface surf = create_platform_window_surface(egl->display, egl->config,
- window, NULL);
- if (surf == EGL_NO_SURFACE) {
- wlr_log(L_ERROR, "Failed to create EGL surface: %s", egl_error());
- return EGL_NO_SURFACE;
- }
- return surf;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-27 01:02:17 +0000