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@ -23,39 +23,25 @@ |
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#include <stdio.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <string.h> |
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#include <stddef.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <stdbool.h> |
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#include <math.h> |
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#include <math.h> |
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#include <assert.h> |
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#include <assert.h> |
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#include <fcntl.h> |
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#include <wayland-client.h> |
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#include <wayland-client.h> |
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#include <xf86drm.h> |
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#include <wayland-egl.h> |
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#define GL_GLEXT_PROTOTYPES |
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#define EGL_EGLEXT_PROTOTYPES |
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#include <GLES2/gl2.h> |
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#include <GLES2/gl2.h> |
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#include <GLES2/gl2ext.h> |
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#include <EGL/egl.h> |
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#include <EGL/egl.h> |
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#include <EGL/eglext.h> |
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struct display { |
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struct display { |
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struct wl_display *display; |
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struct wl_display *display; |
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struct { |
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struct wl_egl_display *native; |
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struct wl_compositor *compositor; |
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struct wl_compositor *compositor; |
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struct wl_drm *drm; |
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} interface; |
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struct { |
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struct { |
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EGLDisplay dpy; |
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EGLDisplay dpy; |
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EGLContext ctx; |
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EGLContext ctx; |
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EGLConfig conf; |
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} egl; |
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} egl; |
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struct { |
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int fd; |
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const char *device_name; |
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bool authenticated; |
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} drm; |
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uint32_t mask; |
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uint32_t mask; |
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}; |
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}; |
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@ -74,11 +60,10 @@ struct window { |
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GLuint pos; |
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GLuint pos; |
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GLuint col; |
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GLuint col; |
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} gl; |
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} gl; |
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struct { |
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struct wl_buffer *buffer; |
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struct wl_egl_window *native; |
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struct wl_surface *surface; |
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struct wl_surface *surface; |
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EGLImageKHR image; |
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EGLSurface egl_surface; |
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} drm_surface; |
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}; |
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}; |
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static const char *vert_shader_text = |
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static const char *vert_shader_text = |
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@ -106,10 +91,21 @@ init_egl(struct display *display) |
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EGL_NONE |
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EGL_NONE |
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}; |
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}; |
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EGLint major, minor; |
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static const EGLint config_attribs[] = { |
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
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EGL_RED_SIZE, 1, |
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EGL_GREEN_SIZE, 1, |
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EGL_BLUE_SIZE, 1, |
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EGL_DEPTH_SIZE, 1, |
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
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EGL_NONE |
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}; |
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EGLint major, minor, n; |
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EGLBoolean ret; |
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EGLBoolean ret; |
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display->egl.dpy = eglGetDRMDisplayMESA(display->drm.fd); |
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display->egl.dpy = |
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eglGetDisplay((EGLNativeDisplayType) display->native); |
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assert(display->egl.dpy); |
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assert(display->egl.dpy); |
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ret = eglInitialize(display->egl.dpy, &major, &minor); |
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ret = eglInitialize(display->egl.dpy, &major, &minor); |
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@ -117,11 +113,14 @@ init_egl(struct display *display) |
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ret = eglBindAPI(EGL_OPENGL_ES_API); |
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ret = eglBindAPI(EGL_OPENGL_ES_API); |
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assert(ret == EGL_TRUE); |
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assert(ret == EGL_TRUE); |
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display->egl.ctx = eglCreateContext(display->egl.dpy, NULL, |
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assert(eglChooseConfig(display->egl.dpy, config_attribs, |
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&display->egl.conf, 1, &n) && n == 1); |
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display->egl.ctx = eglCreateContext(display->egl.dpy, |
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display->egl.conf, |
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EGL_NO_CONTEXT, context_attribs); |
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EGL_NO_CONTEXT, context_attribs); |
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assert(display->egl.ctx); |
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assert(display->egl.ctx); |
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ret = eglMakeCurrent(display->egl.dpy, NULL, NULL, display->egl.ctx); |
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assert(ret == EGL_TRUE); |
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} |
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} |
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static GLuint |
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static GLuint |
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@ -156,11 +155,6 @@ init_gl(struct window *window) |
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GLuint frag, vert; |
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GLuint frag, vert; |
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GLint status; |
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GLint status; |
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glGenFramebuffers(1, &window->gl.fbo); |
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glBindFramebuffer(GL_FRAMEBUFFER, window->gl.fbo); |
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glGenRenderbuffers(1, &window->gl.color_rbo); |
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glViewport(0, 0, window->geometry.width, window->geometry.height); |
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glViewport(0, 0, window->geometry.width, window->geometry.height); |
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frag = create_shader(window, frag_shader_text, GL_FRAGMENT_SHADER); |
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frag = create_shader(window, frag_shader_text, GL_FRAGMENT_SHADER); |
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@ -198,48 +192,26 @@ create_surface(struct window *window) |
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{ |
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{ |
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struct display *display = window->display; |
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struct display *display = window->display; |
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struct wl_visual *visual; |
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struct wl_visual *visual; |
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EGLint name, stride; |
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EGLBoolean ret; |
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EGLint image_attribs[] = { |
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EGL_WIDTH, 0, |
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EGL_HEIGHT, 0, |
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EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA, |
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EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SCANOUT_MESA, |
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EGL_NONE |
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}; |
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window->drm_surface.surface = |
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wl_compositor_create_surface(display->interface.compositor); |
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image_attribs[1] = window->geometry.width; |
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image_attribs[3] = window->geometry.height; |
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window->drm_surface.image = eglCreateDRMImageMESA(display->egl.dpy, |
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window->surface = wl_compositor_create_surface(display->compositor); |
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image_attribs); |
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eglExportDRMImageMESA(display->egl.dpy, window->drm_surface.image, |
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&name, NULL, &stride); |
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visual = wl_display_get_premultiplied_argb_visual(display->display); |
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visual = wl_display_get_premultiplied_argb_visual(display->display); |
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window->native = |
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window->drm_surface.buffer = |
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wl_egl_native_window_create(window->surface, |
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wl_drm_create_buffer(display->interface.drm, name, |
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window->geometry.width, |
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window->geometry.width, |
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window->geometry.height, |
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window->geometry.height, |
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visual); |
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stride, visual); |
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window->egl_surface = |
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eglCreateWindowSurface(display->egl.dpy, |
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wl_surface_attach(window->drm_surface.surface, |
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display->egl.conf, |
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window->drm_surface.buffer, 0, 0); |
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(EGLNativeWindowType) window->native, |
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wl_surface_map_toplevel(window->drm_surface.surface); |
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NULL); |
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glBindRenderbuffer(GL_RENDERBUFFER, window->gl.color_rbo); |
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wl_surface_map_toplevel(window->surface); |
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glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER, |
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window->drm_surface.image); |
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ret = eglMakeCurrent(window->display->egl.dpy, window->egl_surface, |
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window->egl_surface, window->display->egl.ctx); |
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, |
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assert(ret == EGL_TRUE); |
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GL_COLOR_ATTACHMENT0, |
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GL_RENDERBUFFER, |
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window->gl.color_rbo); |
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assert(glCheckFramebufferStatus(GL_FRAMEBUFFER) == |
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GL_FRAMEBUFFER_COMPLETE); |
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} |
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} |
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static void |
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static void |
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@ -293,45 +265,18 @@ redraw(void *data, uint32_t time) |
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glFlush(); |
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glFlush(); |
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wl_surface_damage(window->drm_surface.surface, 0, 0, |
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eglSwapBuffers(window->display->egl.dpy, window->egl_surface); |
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window->geometry.width, window->geometry.height); |
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wl_display_frame_callback(window->display->display, redraw, window); |
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wl_display_frame_callback(window->display->display, redraw, window); |
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} |
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} |
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static void |
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drm_handle_device(void *data, struct wl_drm *drm, const char *device) |
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{ |
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struct display *d = data; |
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d->drm.device_name = strdup(device); |
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} |
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static void |
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drm_handle_authenticated(void *data, struct wl_drm *drm) |
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{ |
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struct display *d = data; |
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d->drm.authenticated = true; |
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} |
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static const struct wl_drm_listener drm_listener = { |
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drm_handle_device, |
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drm_handle_authenticated |
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}; |
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static void |
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static void |
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display_handle_global(struct wl_display *display, uint32_t id, |
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display_handle_global(struct wl_display *display, uint32_t id, |
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const char *interface, uint32_t version, void *data) |
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const char *interface, uint32_t version, void *data) |
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{ |
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{ |
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struct display *d = data; |
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struct display *d = data; |
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if (strcmp(interface, "compositor") == 0) { |
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if (strcmp(interface, "compositor") == 0) |
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d->interface.compositor = wl_compositor_create(display, id); |
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d->compositor = wl_compositor_create(display, id); |
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} else if (strcmp(interface, "drm") == 0) { |
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d->interface.drm = wl_drm_create(display, id); |
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wl_drm_add_listener(d->interface.drm, &drm_listener, d); |
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} |
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} |
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} |
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static int |
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static int |
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@ -349,8 +294,6 @@ main(int argc, char **argv) |
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{ |
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{ |
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struct display display = { 0 }; |
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struct display display = { 0 }; |
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struct window window = { 0 }; |
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struct window window = { 0 }; |
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drm_magic_t magic; |
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int ret; |
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memset(&display, 0, sizeof display); |
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memset(&display, 0, sizeof display); |
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memset(&window, 0, sizeof window); |
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memset(&window, 0, sizeof window); |
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@ -363,23 +306,13 @@ main(int argc, char **argv) |
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assert(display.display); |
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assert(display.display); |
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wl_display_add_global_listener(display.display, |
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wl_display_add_global_listener(display.display, |
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display_handle_global, &display); |
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display_handle_global, &display); |
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/* process connection events */ |
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wl_display_iterate(display.display, WL_DISPLAY_READABLE); |
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display.drm.fd = open(display.drm.device_name, O_RDWR); |
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assert(display.drm.fd >= 0); |
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ret = drmGetMagic(display.drm.fd, &magic); |
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display.native = wl_egl_native_display_create(display.display); |
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assert(ret == 0); |
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wl_drm_authenticate(display.interface.drm, magic); |
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wl_display_iterate(display.display, WL_DISPLAY_WRITABLE); |
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while (!display.drm.authenticated) |
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wl_display_iterate(display.display, WL_DISPLAY_READABLE); |
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init_egl(&display); |
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init_egl(&display); |
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init_gl(&window); |
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create_surface(&window); |
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create_surface(&window); |
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init_gl(&window); |
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wl_display_frame_callback(display.display, redraw, &window); |
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wl_display_frame_callback(display.display, redraw, &window); |
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