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egl working with shader!

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Rakarake 2025-12-18 03:45:35 +01:00
parent caed914bcd
commit c039ddba14
1 changed files with 73 additions and 41 deletions
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96
glonkers.c
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@ -167,53 +167,85 @@ wl_registry_listener = {
}; };
static void egl_init(struct client_state *state) { static void egl_init(struct client_state *state) {
EGLint major; EGLint major, minor, count, n, size;
EGLint minor; EGLConfig *configs;
EGLint num_configs; int i;
EGLint attribs[] = { EGLint config_attribs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
static const EGLint context_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE EGL_NONE
}; };
state->egl_window = wl_egl_window_create(state->wl_surface, state->width,
state->height);
state->egl_display = eglGetDisplay((EGLNativeDisplayType) state->wl_display); state->egl_display = eglGetDisplay((EGLNativeDisplayType) state->wl_display);
if(state->wl_display == EGL_NO_DISPLAY) { if (state->egl_display == EGL_NO_DISPLAY) {
fprintf(stderr, "Couldn't get EGL display\n"); fprintf(stderr, "Can't create egl display\n");
exit(EXIT_FAILURE); exit(1);
} else {
fprintf(stderr, "Created egl display\n");
} }
if (eglInitialize(state->egl_display, &major, &minor) != EGL_TRUE) { if (eglInitialize(state->egl_display, &major, &minor) != EGL_TRUE) {
fprintf(stderr, "Couldnt initialize EGL\n"); fprintf(stderr, "Can't initialise egl display\n");
exit(EXIT_FAILURE); exit(1);
}
printf("EGL major: %d, minor %d\n", major, minor);
eglGetConfigs(state->egl_display, NULL, 0, &count);
printf("EGL has %d configs\n", count);
configs = calloc(count, sizeof *configs);
eglChooseConfig(state->egl_display, config_attribs,
configs, count, &n);
for (i = 0; i < n; i++) {
eglGetConfigAttrib(state->egl_display,
configs[i], EGL_BUFFER_SIZE, &size);
printf("Buffer size for config %d is %d\n", i, size);
eglGetConfigAttrib(state->egl_display,
configs[i], EGL_RED_SIZE, &size);
printf("Red size for config %d is %d\n", i, size);
// just choose the first one
state->egl_config = configs[i];
break;
} }
if(eglChooseConfig(state->egl_display, attribs, &state->egl_config, 1, state->egl_context =
&num_configs) != EGL_TRUE) { eglCreateContext(state->egl_display,
fprintf(stderr, "Couldn't find matching EGL config\n");
exit(EXIT_FAILURE);
}
state->egl_surface = eglCreateWindowSurface(state->egl_display,
state->egl_config, state->egl_config,
(EGLNativeWindowType) state->egl_window, NULL); EGL_NO_CONTEXT, context_attribs);
if(state->egl_surface == EGL_NO_SURFACE) {
fprintf(stderr, "Couldn't create EGL surface\n");
exit(EXIT_FAILURE); // EGL window
state->egl_window = wl_egl_window_create(state->wl_surface,
state->width, state->height);
if (state->egl_window == EGL_NO_SURFACE) {
fprintf(stderr, "Can't create egl window\n");
exit(1);
} else {
fprintf(stderr, "Created egl window\n");
} }
state->egl_context = eglCreateContext(state->egl_display, state->egl_config, state->egl_surface =
EGL_NO_CONTEXT, NULL); eglCreateWindowSurface(state->egl_display,
if(state->egl_context == EGL_NO_CONTEXT) { state->egl_config,
fprintf(stderr, "Couldn't create EGL context\n"); (unsigned long) state->egl_window, NULL);
exit(EXIT_FAILURE);
}
if(!eglMakeCurrent(state->egl_display, state->egl_surface, if (eglMakeCurrent(state->egl_display, state->egl_surface,
state->egl_surface, state->egl_context)) { state->egl_surface, state->egl_context)) {
fprintf(stderr, "Couldn't make EGL context current\n"); fprintf(stderr, "Made current\n");
exit(EXIT_FAILURE); } else {
fprintf(stderr, "Made current failed\n");
} }
} }