--- /dev/null
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Kristian Høgsberg <krh@bitplanet.net>
+ * Benjamin Franzke <benjaminfranzke@googlemail.com>
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "egl_dri2.h"
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
+ _EGLConfig *conf, EGLNativeWindowType window,
+ const EGLint *attrib_list)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
+ struct dri2_egl_surface *dri2_surf;
+ struct dri2_egl_buffer *dri2_buf;
+ int i;
+
+ (void) drv;
+
+ dri2_surf = malloc(sizeof *dri2_surf);
+ if (!dri2_surf) {
+ _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
+ return NULL;
+ }
+
+ if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
+ goto cleanup_surf;
+
+ for (i = 0; i < WL_BUFFER_COUNT; ++i)
+ dri2_surf->wl_drm_buffer[i] = NULL;
+
+ for (i = 0; i < __DRI_BUFFER_COUNT; ++i)
+ dri2_surf->dri_buffers[i] = NULL;
+
+ dri2_surf->block_swap_buffers = EGL_FALSE;
+
+ switch (type) {
+ case EGL_WINDOW_BIT:
+ dri2_surf->wl_win = (struct wl_egl_window *) window;
+ dri2_surf->type = DRI2_WINDOW_SURFACE;
+
+ dri2_surf->base.Width = -1;
+ dri2_surf->base.Height = -1;
+ break;
+ case EGL_PIXMAP_BIT:
+ dri2_surf->wl_pix = (struct wl_egl_pixmap *) window;
+ dri2_surf->type = DRI2_PIXMAP_SURFACE;
+
+ dri2_surf->base.Width = dri2_surf->wl_pix->width;
+ dri2_surf->base.Height = dri2_surf->wl_pix->height;
+
+ if (dri2_surf->wl_pix->name > 0) {
+ dri2_buf = dri2_surf->wl_pix->driver_private;
+ dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT] = dri2_buf->dri_buffer;
+ }
+ break;
+ default:
+ goto cleanup_surf;
+ }
+
+ dri2_surf->dri_drawable =
+ (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
+ dri2_conf->dri_config, dri2_surf);
+ if (dri2_surf->dri_drawable == NULL) {
+ _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
+ goto cleanup_dri_drawable;
+ }
+
+ return &dri2_surf->base;
+
+ cleanup_dri_drawable:
+ dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
+ cleanup_surf:
+ free(dri2_surf);
+
+ return NULL;
+}
+
+/**
+ * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
+ */
+static _EGLSurface *
+dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
+ _EGLConfig *conf, EGLNativeWindowType window,
+ const EGLint *attrib_list)
+{
+ return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
+ window, attrib_list);
+}
+
+static _EGLSurface *
+dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
+ _EGLConfig *conf, EGLNativePixmapType pixmap,
+ const EGLint *attrib_list)
+{
+ return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
+ pixmap, attrib_list);
+}
+
+/**
+ * Called via eglDestroySurface(), drv->API.DestroySurface().
+ */
+static EGLBoolean
+dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
+ int i;
+
+ (void) drv;
+
+ if (!_eglPutSurface(surf))
+ return EGL_TRUE;
+
+ (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
+
+ for (i = 0; i < WL_BUFFER_COUNT; ++i)
+ if (dri2_surf->wl_drm_buffer[i])
+ wl_buffer_destroy(dri2_surf->wl_drm_buffer[i]);
+
+ for (i = 0; i < __DRI_BUFFER_COUNT; ++i)
+ if (dri2_surf->dri_buffers[i] && !(i == __DRI_BUFFER_FRONT_LEFT &&
+ dri2_surf->type == DRI2_PIXMAP_SURFACE))
+ dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
+ dri2_surf->dri_buffers[i]);
+
+ free(surf);
+
+ return EGL_TRUE;
+}
+
+static void
+dri2_wl_egl_pixmap_destroy(struct wl_egl_pixmap *egl_pixmap)
+{
+ struct dri2_egl_buffer *dri2_buf = egl_pixmap->driver_private;
+
+ assert(dri2_buf);
+
+ dri2_buf->dri2_dpy->dri2->releaseBuffer(dri2_buf->dri2_dpy->dri_screen,
+ dri2_buf->dri_buffer);
+
+ free(dri2_buf);
+
+ egl_pixmap->driver_private = NULL;
+ egl_pixmap->destroy = NULL;
+ egl_pixmap->name = 0;
+}
+
+static void
+dri2_process_front_buffer(struct dri2_egl_surface *dri2_surf, unsigned format)
+{
+ struct dri2_egl_display *dri2_dpy =
+ dri2_egl_display(dri2_surf->base.Resource.Display);
+ struct dri2_egl_buffer *dri2_buf;
+
+ /* allocate a back buffer for our double-buffered window*/
+ switch (dri2_surf->type) {
+ case DRI2_WINDOW_SURFACE:
+ dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT] =
+ dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
+ __DRI_BUFFER_BACK_LEFT, format,
+ dri2_surf->base.Width, dri2_surf->base.Height);
+ break;
+ case DRI2_PIXMAP_SURFACE:
+ dri2_buf = malloc(sizeof *dri2_buf);
+ if (!dri2_buf)
+ return;
+
+ dri2_buf->dri_buffer = dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT];
+ dri2_buf->dri2_dpy = dri2_dpy;
+
+ dri2_surf->wl_pix->name = dri2_buf->dri_buffer->name;
+ dri2_surf->wl_pix->stride = dri2_buf->dri_buffer->pitch;
+ dri2_surf->wl_pix->driver_private = dri2_buf;
+ dri2_surf->wl_pix->destroy = dri2_wl_egl_pixmap_destroy;
+ break;
+ default:
+ break;
+ }
+}
+
+static __DRIbuffer *
+dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
+ int *width, int *height,
+ unsigned int *attachments, int count,
+ int *out_count, void *loaderPrivate)
+{
+ struct dri2_egl_surface *dri2_surf = loaderPrivate;
+ struct dri2_egl_display *dri2_dpy =
+ dri2_egl_display(dri2_surf->base.Resource.Display);
+ int i;
+
+ if (dri2_surf->type == DRI2_WINDOW_SURFACE &&
+ (dri2_surf->base.Width != dri2_surf->wl_win->width ||
+ dri2_surf->base.Height != dri2_surf->wl_win->height)) {
+ for (i = 0; i < __DRI_BUFFER_COUNT; ++i) {
+ if (dri2_surf->dri_buffers[i]) {
+ dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
+ dri2_surf->dri_buffers[i]);
+ dri2_surf->dri_buffers[i] = NULL;
+ }
+ }
+
+ dri2_surf->base.Width = dri2_surf->wl_win->width;
+ dri2_surf->base.Height = dri2_surf->wl_win->height;
+ dri2_surf->dx = dri2_surf->wl_win->dx;
+ dri2_surf->dy = dri2_surf->wl_win->dy;
+
+ for (i = 0; i < WL_BUFFER_COUNT; ++i) {
+ if (dri2_surf->wl_drm_buffer[i])
+ wl_buffer_destroy(dri2_surf->wl_drm_buffer[i]);
+ dri2_surf->wl_drm_buffer[i] = NULL;
+ }
+ }
+
+ dri2_surf->buffer_count = 0;
+ for (i = 0; i < 2*count; i+=2) {
+ assert(attachments[i] < __DRI_BUFFER_COUNT);
+ assert(dri2_surf->buffer_count < 5);
+
+ if (dri2_surf->dri_buffers[attachments[i]] == NULL) {
+
+ dri2_surf->dri_buffers[attachments[i]] =
+ dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
+ attachments[i], attachments[i+1],
+ dri2_surf->base.Width, dri2_surf->base.Height);
+
+ if (!dri2_surf->dri_buffers[attachments[i]])
+ continue;
+
+ if (attachments[i] == __DRI_BUFFER_FRONT_LEFT)
+ dri2_process_front_buffer(dri2_surf, attachments[i+1]);
+ }
+
+ memcpy(&dri2_surf->buffers[dri2_surf->buffer_count],
+ dri2_surf->dri_buffers[attachments[i]],
+ sizeof(__DRIbuffer));
+
+ dri2_surf->buffer_count++;
+ }
+
+ assert(dri2_surf->type == DRI2_PIXMAP_SURFACE ||
+ dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
+
+ *out_count = dri2_surf->buffer_count;
+ if (dri2_surf->buffer_count == 0)
+ return NULL;
+
+ *width = dri2_surf->base.Width;
+ *height = dri2_surf->base.Height;
+
+ return dri2_surf->buffers;
+}
+
+static __DRIbuffer *
+dri2_get_buffers(__DRIdrawable * driDrawable,
+ int *width, int *height,
+ unsigned int *attachments, int count,
+ int *out_count, void *loaderPrivate)
+{
+ unsigned int *attachments_with_format;
+ __DRIbuffer *buffer;
+ const unsigned int format = 32;
+ int i;
+
+ attachments_with_format = calloc(count * 2, sizeof(unsigned int));
+ if (!attachments_with_format) {
+ *out_count = 0;
+ return NULL;
+ }
+
+ for (i = 0; i < count; ++i) {
+ attachments_with_format[2*i] = attachments[i];
+ attachments_with_format[2*i + 1] = format;
+ }
+
+ buffer =
+ dri2_get_buffers_with_format(driDrawable,
+ width, height,
+ attachments_with_format, count,
+ out_count, loaderPrivate);
+
+ free(attachments_with_format);
+
+ return buffer;
+}
+
+
+static void
+dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
+{
+ (void) driDrawable;
+
+ /* FIXME: Does EGL support front buffer rendering at all? */
+
+#if 0
+ struct dri2_egl_surface *dri2_surf = loaderPrivate;
+
+ dri2WaitGL(dri2_surf);
+#else
+ (void) loaderPrivate;
+#endif
+}
+
+static struct wl_buffer *
+wayland_create_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
+{
+ struct dri2_egl_display *dri2_dpy =
+ dri2_egl_display(dri2_surf->base.Resource.Display);
+
+ return wl_drm_create_buffer(dri2_dpy->wl_dpy->drm, buffer->name,
+ dri2_surf->base.Width, dri2_surf->base.Height,
+ buffer->pitch, dri2_surf->wl_win->visual);
+}
+
+static void
+wayland_frame_callback(void *data, uint32_t time)
+{
+ struct dri2_egl_surface *dri2_surf = data;
+
+ dri2_surf->block_swap_buffers = EGL_FALSE;
+}
+
+static inline void
+pointer_swap(const void **p1, const void **p2)
+{
+ const void *tmp = *p1;
+ *p1 = *p2;
+ *p2 = tmp;
+}
+
+/**
+ * Called via eglSwapBuffers(), drv->API.SwapBuffers().
+ */
+static EGLBoolean
+dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
+ struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+
+ while (dri2_surf->block_swap_buffers)
+ wl_display_iterate(dri2_dpy->wl_dpy->display, WL_DISPLAY_READABLE);
+
+ dri2_surf->block_swap_buffers = EGL_TRUE;
+ wl_display_frame_callback(dri2_dpy->wl_dpy->display,
+ wayland_frame_callback, dri2_surf);
+
+ if (dri2_surf->type == DRI2_WINDOW_SURFACE) {
+ pointer_swap(
+ (const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT],
+ (const void **) &dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
+
+ dri2_surf->dri_buffers[__DRI_BUFFER_FRONT_LEFT]->attachment =
+ __DRI_BUFFER_FRONT_LEFT;
+ dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]->attachment =
+ __DRI_BUFFER_BACK_LEFT;
+
+ pointer_swap((const void **) &dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT],
+ (const void **) &dri2_surf->wl_drm_buffer[WL_BUFFER_BACK]);
+
+ if (!dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT])
+ dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT] =
+ wayland_create_buffer(dri2_surf,
+ dri2_surf->dri_buffers[__DRI_BUFFER_BACK_LEFT]);
+
+ wl_surface_attach(dri2_surf->wl_win->surface,
+ dri2_surf->wl_drm_buffer[WL_BUFFER_FRONT],
+ dri2_surf->dx, dri2_surf->dy);
+
+ dri2_surf->wl_win->attached_width = dri2_surf->base.Width;
+ dri2_surf->wl_win->attached_height = dri2_surf->base.Height;
+ /* reset resize growing parameters */
+ dri2_surf->dx = 0;
+ dri2_surf->dy = 0;
+
+ wl_surface_damage(dri2_surf->wl_win->surface, 0, 0,
+ dri2_surf->base.Width, dri2_surf->base.Height);
+ }
+
+ _EGLContext *ctx;
+ if (dri2_drv->glFlush) {
+ ctx = _eglGetCurrentContext();
+ if (ctx && ctx->DrawSurface == &dri2_surf->base)
+ dri2_drv->glFlush();
+ }
+
+ (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
+ (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
+
+ return EGL_TRUE;
+}
+
+/**
+ * Called via eglCreateImageKHR(), drv->API.CreateImageKHR().
+ */
+static _EGLImage *
+dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
+ EGLClientBuffer buffer, const EGLint *attr_list)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ struct wl_egl_pixmap *wl_egl_pixmap = (struct wl_egl_pixmap *) buffer;
+ struct dri2_egl_buffer *dri2_buf;
+ EGLint wl_attr_list[] = {
+ EGL_WIDTH, 0,
+ EGL_HEIGHT, 0,
+ EGL_DRM_BUFFER_STRIDE_MESA, 0,
+ EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
+ EGL_NONE
+ };
+
+ dri2_buf = malloc(sizeof *dri2_buf);
+ if (!dri2_buf)
+ return NULL;
+
+ dri2_buf->dri2_dpy = dri2_dpy;
+ dri2_buf->dri_buffer =
+ dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen,
+ __DRI_BUFFER_FRONT_LEFT, 32,
+ wl_egl_pixmap->width,
+ wl_egl_pixmap->height);
+
+ wl_egl_pixmap->name = dri2_buf->dri_buffer->name;
+ wl_egl_pixmap->stride = dri2_buf->dri_buffer->pitch;
+ wl_egl_pixmap->destroy = dri2_wl_egl_pixmap_destroy;
+ wl_egl_pixmap->driver_private = dri2_buf;
+
+ wl_attr_list[1] = wl_egl_pixmap->width;
+ wl_attr_list[3] = wl_egl_pixmap->height;
+ wl_attr_list[5] = wl_egl_pixmap->stride / 4;
+
+
+ return dri2_create_image_khr(disp->Driver, disp, ctx, EGL_DRM_BUFFER_MESA,
+ (EGLClientBuffer)(intptr_t) wl_egl_pixmap->name, wl_attr_list);
+}
+
+static _EGLImage *
+dri2_wayland_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
+ _EGLContext *ctx, EGLenum target,
+ EGLClientBuffer buffer, const EGLint *attr_list)
+{
+ (void) drv;
+
+ switch (target) {
+ case EGL_NATIVE_PIXMAP_KHR:
+ return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
+ default:
+ return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
+ }
+}
+
+/**
+ * Called via eglTerminate(), drv->API.Terminate().
+ */
+static EGLBoolean
+dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+
+ _eglReleaseDisplayResources(drv, disp);
+ _eglCleanupDisplay(disp);
+
+ dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
+ close(dri2_dpy->fd);
+ dlclose(dri2_dpy->driver);
+ free(dri2_dpy->driver_name);
+ free(dri2_dpy);
+ disp->DriverData = NULL;
+
+ return EGL_TRUE;
+}
+
+
+EGLBoolean
+dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
+{
+ struct dri2_egl_display *dri2_dpy;
+ int i;
+
+ drv->API.CreateWindowSurface = dri2_create_window_surface;
+ drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
+ drv->API.DestroySurface = dri2_destroy_surface;
+ drv->API.SwapBuffers = dri2_swap_buffers;
+ drv->API.CreateImageKHR = dri2_wayland_create_image_khr;
+ drv->API.Terminate = dri2_terminate;
+
+ dri2_dpy = malloc(sizeof *dri2_dpy);
+ if (!dri2_dpy)
+ return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+ disp->DriverData = (void *) dri2_dpy;
+ dri2_dpy->wl_dpy = disp->PlatformDisplay;
+
+ dri2_dpy->fd = dup(dri2_dpy->wl_dpy->fd);
+ if (dri2_dpy->fd < 0) {
+ _eglError(EGL_BAD_ALLOC, "DRI2: failed to dup fd");
+ goto cleanup_dpy;
+ }
+
+ wl_display_iterate(dri2_dpy->wl_dpy->display, WL_DISPLAY_WRITABLE);
+ while (!dri2_dpy->wl_dpy->authenticated)
+ wl_display_iterate(dri2_dpy->wl_dpy->display, WL_DISPLAY_READABLE);
+
+ dri2_dpy->driver_name = dri2_get_driver_for_fd(dri2_dpy->fd);
+ if (dri2_dpy->driver_name == NULL) {
+ _eglError(EGL_BAD_ALLOC, "DRI2: failed to get driver name");
+ goto cleanup_fd;
+ }
+
+ if (!dri2_load_driver(disp))
+ goto cleanup_driver_name;
+
+ dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
+ dri2_dpy->loader_extension.base.version = 3;
+ dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
+ dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
+ dri2_dpy->loader_extension.getBuffersWithFormat =
+ dri2_get_buffers_with_format;
+
+ dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
+ dri2_dpy->extensions[1] = &image_lookup_extension.base;
+ dri2_dpy->extensions[2] = NULL;
+
+ if (!dri2_create_screen(disp))
+ goto cleanup_driver;
+
+ for (i = 0; dri2_dpy->driver_configs[i]; i++)
+ dri2_add_config(disp, dri2_dpy->driver_configs[i], i + 1, 0,
+ EGL_WINDOW_BIT | EGL_PIXMAP_BIT);
+
+
+ disp->Extensions.MESA_drm_image = EGL_TRUE;
+ disp->Extensions.KHR_image_base = EGL_TRUE;
+ disp->Extensions.KHR_image_pixmap = EGL_TRUE;
+ disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
+ disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
+
+ /* we're supporting EGL 1.4 */
+ disp->VersionMajor = 1;
+ disp->VersionMinor = 4;
+
+ return EGL_TRUE;
+
+ cleanup_driver:
+ dlclose(dri2_dpy->driver);
+ cleanup_driver_name:
+ free(dri2_dpy->driver_name);
+ cleanup_fd:
+ close(dri2_dpy->fd);
+ cleanup_dpy:
+ free(dri2_dpy);
+
+ return EGL_FALSE;
+}
projects / mesa.git / commitdiff