diff options
Diffstat (limited to 'src/egl/drivers/dri2/egl_dri2.c')
| -rw-r--r-- | src/egl/drivers/dri2/egl_dri2.c | 1474 |
1 files changed, 1474 insertions, 0 deletions
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c new file mode 100644 index 0000000000..aa384cb117 --- /dev/null +++ b/src/egl/drivers/dri2/egl_dri2.c @@ -0,0 +1,1474 @@ +/* + * Copyright © 2010 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> + */ + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <limits.h> +#include <dlfcn.h> +#include <fcntl.h> +#include <errno.h> +#include <unistd.h> +#include <xf86drm.h> +#include <GL/gl.h> +#include <GL/internal/dri_interface.h> +#include <xcb/xcb.h> +#include <xcb/dri2.h> +#include <xcb/xfixes.h> +#include <X11/Xlib-xcb.h> + +#include <glapi/glapi.h> +#include "eglconfig.h" +#include "eglcontext.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglcurrent.h" +#include "egllog.h" +#include "eglsurface.h" +#include "eglimage.h" + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) + +struct dri2_egl_driver +{ + _EGLDriver base; + + void (*glFlush)(void); +}; + +struct dri2_egl_display +{ + xcb_connection_t *conn; + int dri2_major; + int dri2_minor; + __DRIscreen *dri_screen; + const __DRIconfig **driver_configs; + void *driver; + __DRIcoreExtension *core; + __DRIdri2Extension *dri2; + __DRI2flushExtension *flush; + __DRItexBufferExtension *tex_buffer; + __DRIimageExtension *image; + int fd; + + char *device_name; + char *driver_name; + + __DRIdri2LoaderExtension loader_extension; + __DRIimageLookupExtension image_lookup_extension; + const __DRIextension *extensions[3]; +}; + +struct dri2_egl_context +{ + _EGLContext base; + __DRIcontext *dri_context; +}; + +struct dri2_egl_surface +{ + _EGLSurface base; + __DRIdrawable *dri_drawable; + xcb_drawable_t drawable; + __DRIbuffer buffers[5]; + int buffer_count; + xcb_xfixes_region_t region; + int have_fake_front; + int swap_interval; +}; + +struct dri2_egl_config +{ + _EGLConfig base; + const __DRIconfig *dri_config; +}; + +struct dri2_egl_image +{ + _EGLImage base; + __DRIimage *dri_image; +}; + +/* standard typecasts */ +_EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl) +_EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj) + +EGLint dri2_to_egl_attribute_map[] = { + 0, + EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */ + EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */ + EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */ + EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */ + EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */ + EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */ + EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */ + 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */ + EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */ + EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */ + EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */ + EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */ + 0, /* __DRI_ATTRIB_RENDER_TYPE, */ + 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */ + 0, /* __DRI_ATTRIB_CONFORMANT */ + 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */ + 0, /* __DRI_ATTRIB_STEREO */ + 0, /* __DRI_ATTRIB_AUX_BUFFERS */ + 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */ + 0, /* __DRI_ATTRIB_FLOAT_MODE */ + 0, /* __DRI_ATTRIB_RED_MASK */ + 0, /* __DRI_ATTRIB_GREEN_MASK */ + 0, /* __DRI_ATTRIB_BLUE_MASK */ + 0, /* __DRI_ATTRIB_ALPHA_MASK */ + EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */ + EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */ + EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */ + 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */ + 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */ + 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */ + 0, /* __DRI_ATTRIB_SWAP_METHOD */ + EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */ + EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */ + 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */ + 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */ + 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */ + 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */ + EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */ +}; + +static void +dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id, + int depth, xcb_visualtype_t *visual) +{ + struct dri2_egl_config *conf; + struct dri2_egl_display *dri2_dpy; + _EGLConfig base; + unsigned int attrib, value, double_buffer; + EGLint key, bind_to_texture_rgb, bind_to_texture_rgba; + int i; + + dri2_dpy = disp->DriverData; + _eglInitConfig(&base, disp, id); + + i = 0; + while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) { + switch (attrib) { + case __DRI_ATTRIB_RENDER_TYPE: + if (value & __DRI_ATTRIB_RGBA_BIT) + value = EGL_RGB_BUFFER; + else if (value & __DRI_ATTRIB_LUMINANCE_BIT) + value = EGL_LUMINANCE_BUFFER; + else + /* not valid */; + _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value); + break; + + case __DRI_ATTRIB_CONFIG_CAVEAT: + if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG) + value = EGL_NON_CONFORMANT_CONFIG; + else if (value & __DRI_ATTRIB_SLOW_BIT) + value = EGL_SLOW_CONFIG; + else + value = EGL_NONE; + _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value); + break; + + case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB: + bind_to_texture_rgb = value; + break; + + case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA: + bind_to_texture_rgba = value; + break; + + case __DRI_ATTRIB_DOUBLE_BUFFER: + double_buffer = value; + break; + + default: + key = dri2_to_egl_attribute_map[attrib]; + if (key != 0) + _eglSetConfigKey(&base, key, value); + break; + } + } + + /* In EGL, double buffer or not isn't a config attribute. Pixmaps + * surfaces are always single buffered, pbuffer surfaces are always + * back buffers and windows can be either, selected by passing an + * attribute at window surface construction time. To support this + * we ignore all double buffer configs and manipulate the buffer we + * return in the getBuffer callback to get the behaviour we want. */ + + if (double_buffer) + return; + + if (visual != NULL) { + if (depth != _eglGetConfigKey(&base, EGL_BUFFER_SIZE)) + return; + + _eglSetConfigKey(&base, EGL_SURFACE_TYPE, + EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT | + EGL_SWAP_BEHAVIOR_PRESERVED_BIT); + + _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_ID, visual->visual_id); + _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_TYPE, visual->_class); + } else { + _eglSetConfigKey(&base, EGL_SURFACE_TYPE, + EGL_PIXMAP_BIT | EGL_PBUFFER_BIT); + } + + _eglSetConfigKey(&base, EGL_NATIVE_RENDERABLE, EGL_TRUE); + _eglSetConfigKey(&base, EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb); + if (_eglGetConfigKey(&base, EGL_ALPHA_SIZE) > 0) + _eglSetConfigKey(&base, + EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba); + + _eglSetConfigKey(&base, EGL_RENDERABLE_TYPE, disp->ClientAPIsMask); + _eglSetConfigKey(&base, EGL_CONFORMANT, disp->ClientAPIsMask); + + if (!_eglValidateConfig(&base, EGL_FALSE)) { + _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id); + return; + } + + conf = malloc(sizeof *conf); + if (conf != NULL) { + memcpy(&conf->base, &base, sizeof base); + conf->dri_config = dri_config; + _eglAddConfig(disp, &conf->base); + } +} + +/** + * Process list of buffer received from the server + * + * Processes the list of buffers received in a reply from the server to either + * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat. + */ +static void +dri2_process_buffers(struct dri2_egl_surface *dri2_surf, + xcb_dri2_dri2_buffer_t *buffers, unsigned count) +{ + struct dri2_egl_display *dri2_dpy = + dri2_egl_display(dri2_surf->base.Resource.Display); + xcb_rectangle_t rectangle; + int i; + + dri2_surf->buffer_count = count; + dri2_surf->have_fake_front = 0; + + /* This assumes the DRI2 buffer attachment tokens matches the + * __DRIbuffer tokens. */ + for (i = 0; i < count; i++) { + dri2_surf->buffers[i].attachment = buffers[i].attachment; + dri2_surf->buffers[i].name = buffers[i].name; + dri2_surf->buffers[i].pitch = buffers[i].pitch; + dri2_surf->buffers[i].cpp = buffers[i].cpp; + dri2_surf->buffers[i].flags = buffers[i].flags; + + /* We only use the DRI drivers single buffer configs. This + * means that if we try to render to a window, DRI2 will give us + * the fake front buffer, which we'll use as a back buffer. + * Note that EGL doesn't require that several clients rendering + * to the same window must see the same aux buffers. */ + if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) + dri2_surf->have_fake_front = 1; + } + + if (dri2_surf->region != XCB_NONE) + xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region); + + rectangle.x = 0; + rectangle.y = 0; + rectangle.width = dri2_surf->base.Width; + rectangle.height = dri2_surf->base.Height; + dri2_surf->region = xcb_generate_id(dri2_dpy->conn); + xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle); +} + +static __DRIbuffer * +dri2_get_buffers(__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); + xcb_dri2_dri2_buffer_t *buffers; + xcb_dri2_get_buffers_reply_t *reply; + xcb_dri2_get_buffers_cookie_t cookie; + + cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, + dri2_surf->drawable, + count, count, attachments); + reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL); + buffers = xcb_dri2_get_buffers_buffers (reply); + if (buffers == NULL) + return NULL; + + *out_count = reply->count; + dri2_surf->base.Width = *width = reply->width; + dri2_surf->base.Height = *height = reply->height; + dri2_process_buffers(dri2_surf, buffers, *out_count); + + free(reply); + + return dri2_surf->buffers; +} + +static void +dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate) +{ + /* FIXME: Does EGL support front buffer rendering at all? */ + +#if 0 + struct dri2_egl_surface *dri2_surf = loaderPrivate; + + dri2WaitGL(dri2_surf); +#endif +} + +static __DRIimage * +dri2_lookup_egl_image(__DRIcontext *context, void *image, void *data) +{ + struct dri2_egl_context *dri2_ctx = data; + _EGLDisplay *disp = dri2_ctx->base.Resource.Display; + struct dri2_egl_image *dri2_img; + _EGLImage *img; + + img = _eglLookupImage(image, disp); + if (img == NULL) { + _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image"); + return NULL; + } + + dri2_img = dri2_egl_image(image); + + return dri2_img->dri_image; +} + +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); + xcb_dri2_dri2_buffer_t *buffers; + xcb_dri2_get_buffers_with_format_reply_t *reply; + xcb_dri2_get_buffers_with_format_cookie_t cookie; + xcb_dri2_attach_format_t *format_attachments; + + format_attachments = (xcb_dri2_attach_format_t *) attachments; + cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn, + dri2_surf->drawable, + count, count, + format_attachments); + + reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn, + cookie, NULL); + if (reply == NULL) + return NULL; + + buffers = xcb_dri2_get_buffers_with_format_buffers (reply); + dri2_surf->base.Width = *width = reply->width; + dri2_surf->base.Height = *height = reply->height; + *out_count = reply->count; + dri2_process_buffers(dri2_surf, buffers, *out_count); + + free(reply); + + return dri2_surf->buffers; +} + +static const char dri_driver_path[] = DEFAULT_DRIVER_DIR; + +struct dri2_extension_match { + const char *name; + int version; + int offset; +}; + +static struct dri2_extension_match dri2_driver_extensions[] = { + { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) }, + { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) }, + { NULL } +}; + +static struct dri2_extension_match dri2_core_extensions[] = { + { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) }, + { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) }, + { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) }, + { NULL } +}; + +static EGLBoolean +dri2_bind_extensions(struct dri2_egl_display *dri2_dpy, + struct dri2_extension_match *matches, + const __DRIextension **extensions) +{ + int i, j, ret = EGL_TRUE; + void *field; + + for (i = 0; extensions[i]; i++) { + _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name); + for (j = 0; matches[j].name; j++) { + if (strcmp(extensions[i]->name, matches[j].name) == 0 && + extensions[i]->version >= matches[j].version) { + field = ((char *) dri2_dpy + matches[j].offset); + *(const __DRIextension **) field = extensions[i]; + _eglLog(_EGL_INFO, "DRI2: found extension %s version %d", + extensions[i]->name, extensions[i]->version); + } + } + } + + for (j = 0; matches[j].name; j++) { + field = ((char *) dri2_dpy + matches[j].offset); + if (*(const __DRIextension **) field == NULL) { + _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d", + matches[j].name, matches[j].version); + ret = EGL_FALSE; + } + } + + return ret; +} + +static char * +dri2_strndup(const char *s, int length) +{ + char *d; + + d = malloc(length + 1); + if (d == NULL) + return NULL; + + memcpy(d, s, length); + d[length] = '\0'; + + return d; +} + +static EGLBoolean +dri2_connect(struct dri2_egl_display *dri2_dpy) +{ + xcb_xfixes_query_version_reply_t *xfixes_query; + xcb_xfixes_query_version_cookie_t xfixes_query_cookie; + xcb_dri2_query_version_reply_t *dri2_query; + xcb_dri2_query_version_cookie_t dri2_query_cookie; + xcb_dri2_connect_reply_t *connect; + xcb_dri2_connect_cookie_t connect_cookie; + xcb_generic_error_t *error; + xcb_screen_iterator_t s; + + xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id); + xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id); + + xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn, + XCB_XFIXES_MAJOR_VERSION, + XCB_XFIXES_MINOR_VERSION); + + dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn, + XCB_DRI2_MAJOR_VERSION, + XCB_DRI2_MINOR_VERSION); + + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn, + s.data->root, + XCB_DRI2_DRIVER_TYPE_DRI); + + xfixes_query = + xcb_xfixes_query_version_reply (dri2_dpy->conn, + xfixes_query_cookie, &error); + if (xfixes_query == NULL || + error != NULL || xfixes_query->major_version < 2) { + _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version"); + free(error); + return EGL_FALSE; + } + free(xfixes_query); + + dri2_query = + xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error); + if (dri2_query == NULL || error != NULL) { + _eglLog(_EGL_FATAL, "DRI2: failed to query version"); + free(error); + return EGL_FALSE; + } + dri2_dpy->dri2_major = dri2_query->major_version; + dri2_dpy->dri2_minor = dri2_query->minor_version; + free(dri2_query); + + connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL); + if (connect == NULL || + connect->driver_name_length + connect->device_name_length == 0) { + _eglLog(_EGL_FATAL, "DRI2: failed to authenticate"); + return EGL_FALSE; + } + + dri2_dpy->device_name = + dri2_strndup(xcb_dri2_connect_device_name (connect), + xcb_dri2_connect_device_name_length (connect)); + + dri2_dpy->driver_name = + dri2_strndup(xcb_dri2_connect_driver_name (connect), + xcb_dri2_connect_driver_name_length (connect)); + + if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) { + free(dri2_dpy->device_name); + free(dri2_dpy->driver_name); + free(connect); + return EGL_FALSE; + } + free(connect); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_authenticate(struct dri2_egl_display *dri2_dpy) +{ + xcb_dri2_authenticate_reply_t *authenticate; + xcb_dri2_authenticate_cookie_t authenticate_cookie; + xcb_screen_iterator_t s; + drm_magic_t magic; + + if (drmGetMagic(dri2_dpy->fd, &magic)) { + _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic"); + return EGL_FALSE; + } + + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + authenticate_cookie = + xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic); + authenticate = + xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL); + if (authenticate == NULL || !authenticate->authenticated) { + _eglLog(_EGL_FATAL, "DRI2: failed to authenticate"); + free(authenticate); + return EGL_FALSE; + } + + free(authenticate); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, + _EGLDisplay *disp) +{ + xcb_screen_iterator_t s; + xcb_depth_iterator_t d; + xcb_visualtype_t *visuals; + int i, j, id; + + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + d = xcb_screen_allowed_depths_iterator(s.data); + id = 1; + while (d.rem > 0) { + EGLBoolean class_added[6] = { 0, }; + + visuals = xcb_depth_visuals(d.data); + for (i = 0; i < xcb_depth_visuals_length(d.data); i++) { + if (class_added[visuals[i]._class]) + continue; + + class_added[visuals[i]._class] = EGL_TRUE; + for (j = 0; dri2_dpy->driver_configs[j]; j++) + dri2_add_config(disp, dri2_dpy->driver_configs[j], + id++, d.data->depth, &visuals[i]); + } + + xcb_depth_next(&d); + } + + if (!disp->NumConfigs) { + _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); + return EGL_FALSE; + } + + return EGL_TRUE; +} + +static EGLBoolean +dri2_load_driver(_EGLDisplay *disp) +{ + struct dri2_egl_display *dri2_dpy = disp->DriverData; + const __DRIextension **extensions; + char path[PATH_MAX], *search_paths, *p, *next, *end; + + search_paths = NULL; + if (geteuid() == getuid()) { + /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */ + search_paths = getenv("LIBGL_DRIVERS_PATH"); + } + if (search_paths == NULL) + search_paths = DEFAULT_DRIVER_DIR; + + dri2_dpy->driver = NULL; + end = search_paths + strlen(search_paths); + for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) { + int len; + next = strchr(p, ':'); + if (next == NULL) + next = end; + + len = next - p; +#if GLX_USE_TLS + snprintf(path, sizeof path, + "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name); + dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL); +#endif + if (dri2_dpy->driver == NULL) { + snprintf(path, sizeof path, + "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name); + dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL); + if (dri2_dpy->driver == NULL) + _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror()); + } + } + + if (dri2_dpy->driver == NULL) { + _eglLog(_EGL_WARNING, + "DRI2: failed to open any driver (search paths %s)", + search_paths); + return EGL_FALSE; + } + + _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path); + extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS); + if (extensions == NULL) { + _eglLog(_EGL_WARNING, + "DRI2: driver exports no extensions (%s)", dlerror()); + dlclose(dri2_dpy->driver); + return EGL_FALSE; + } + + if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) { + dlclose(dri2_dpy->driver); + return EGL_FALSE; + } + + return EGL_TRUE; +} + + +/** + * Called via eglInitialize(), GLX_drv->API.Initialize(). + */ +static EGLBoolean +dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp, + EGLint *major, EGLint *minor) +{ + const __DRIextension **extensions; + struct dri2_egl_display *dri2_dpy; + unsigned int api_mask; + + dri2_dpy = malloc(sizeof *dri2_dpy); + if (!dri2_dpy) + return _eglError(EGL_BAD_ALLOC, "eglInitialize"); + + disp->DriverData = (void *) dri2_dpy; + if (disp->NativeDisplay == NULL) { + dri2_dpy->conn = xcb_connect(0, 0); + } else { + dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay); + } + + if (xcb_connection_has_error(dri2_dpy->conn)) { + _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed"); + goto cleanup_dpy; + } + + if (dri2_dpy->conn) { + if (!dri2_connect(dri2_dpy)) + goto cleanup_conn; + } + + if (!dri2_load_driver(disp)) + goto cleanup_conn; + + dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR); + if (dri2_dpy->fd == -1) { + _eglLog(_EGL_WARNING, + "DRI2: could not open %s (%s)", dri2_dpy->device_name, + strerror(errno)); + goto cleanup_driver; + } + + if (dri2_dpy->conn) { + if (!dri2_authenticate(dri2_dpy)) + goto cleanup_fd; + } + + if (dri2_dpy->dri2_minor >= 1) { + 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; + } else { + dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER; + dri2_dpy->loader_extension.base.version = 2; + dri2_dpy->loader_extension.getBuffers = dri2_get_buffers; + dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer; + dri2_dpy->loader_extension.getBuffersWithFormat = NULL; + } + + dri2_dpy->image_lookup_extension.base.name = __DRI_IMAGE_LOOKUP; + dri2_dpy->image_lookup_extension.base.version = 1; + dri2_dpy->image_lookup_extension.lookupEGLImage = dri2_lookup_egl_image; + + dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base; + dri2_dpy->extensions[1] = &dri2_dpy->image_lookup_extension.base; + dri2_dpy->extensions[2] = NULL; + + dri2_dpy->dri_screen = + dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions, + &dri2_dpy->driver_configs, dri2_dpy); + + if (dri2_dpy->dri_screen == NULL) { + _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen"); + goto cleanup_fd; + } + + extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen); + if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions)) + goto cleanup_dri_screen; + + if (dri2_dpy->dri2->base.version >= 2) + api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen); + else + api_mask = __DRI_API_OPENGL; + + disp->ClientAPIsMask = 0; + if (api_mask & (1 <<__DRI_API_OPENGL)) + disp->ClientAPIsMask |= EGL_OPENGL_BIT; + if (api_mask & (1 <<__DRI_API_GLES)) + disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT; + if (api_mask & (1 << __DRI_API_GLES2)) + disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT; + + if (dri2_dpy->conn) { + if (!dri2_add_configs_for_visuals(dri2_dpy, disp)) + goto cleanup_configs; + } + + 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; + disp->Extensions.NOK_swap_region = EGL_TRUE; + disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE; + + /* we're supporting EGL 1.4 */ + *major = 1; + *minor = 4; + + return EGL_TRUE; + + cleanup_configs: + _eglCleanupDisplay(disp); + cleanup_dri_screen: + dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); + cleanup_fd: + close(dri2_dpy->fd); + cleanup_driver: + dlclose(dri2_dpy->driver); + cleanup_conn: + if (disp->NativeDisplay == NULL) + xcb_disconnect(dri2_dpy->conn); + cleanup_dpy: + free(dri2_dpy); + + return EGL_FALSE; +} + +/** + * 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); + if (disp->NativeDisplay == NULL) + xcb_disconnect(dri2_dpy->conn); + free(dri2_dpy); + disp->DriverData = NULL; + + return EGL_TRUE; +} + + +/** + * Called via eglCreateContext(), drv->API.CreateContext(). + */ +static _EGLContext * +dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, + _EGLContext *share_list, const EGLint *attrib_list) +{ + struct dri2_egl_context *dri2_ctx; + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list); + struct dri2_egl_config *dri2_config = dri2_egl_config(conf); + int api; + + dri2_ctx = malloc(sizeof *dri2_ctx); + if (!dri2_ctx) { + _eglError(EGL_BAD_ALLOC, "eglCreateContext"); + return NULL; + } + + if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list)) + goto cleanup; + + switch (dri2_ctx->base.ClientAPI) { + case EGL_OPENGL_ES_API: + switch (dri2_ctx->base.ClientVersion) { + case 1: + api = __DRI_API_GLES; + break; + case 2: + api = __DRI_API_GLES2; + break; + default: + _eglError(EGL_BAD_PARAMETER, "eglCreateContext"); + return NULL; + } + break; + case EGL_OPENGL_API: + api = __DRI_API_OPENGL; + break; + default: + _eglError(EGL_BAD_PARAMETER, "eglCreateContext"); + return NULL; + } + + if (dri2_dpy->dri2->base.version >= 2) { + dri2_ctx->dri_context = + dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen, + api, + dri2_config->dri_config, + dri2_ctx_shared ? + dri2_ctx_shared->dri_context : NULL, + dri2_ctx); + } else if (api == __DRI_API_OPENGL) { + dri2_ctx->dri_context = + dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen, + dri2_config->dri_config, + dri2_ctx_shared ? + dri2_ctx_shared->dri_context : NULL, + dri2_ctx); + } else { + /* fail */ + } + + if (!dri2_ctx->dri_context) + goto cleanup; + + return &dri2_ctx->base; + + cleanup: + free(dri2_ctx); + return NULL; +} + +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); + + if (_eglIsSurfaceBound(surf)) + return EGL_TRUE; + + (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable); + + xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable); + + if (surf->Type == EGL_PBUFFER_BIT) + xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable); + + free(surf); + + return EGL_TRUE; +} + +/** + * Called via eglMakeCurrent(), drv->API.MakeCurrent(). + */ +static EGLBoolean +dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf, + _EGLSurface *rsurf, _EGLContext *ctx) +{ + struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv); + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf); + struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf); + struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx); + __DRIdrawable *ddraw, *rdraw; + __DRIcontext *cctx; + + /* bind the new context and return the "orphaned" one */ + if (!_eglBindContext(&ctx, &dsurf, &rsurf)) + return EGL_FALSE; + + /* flush before context switch */ + if (ctx && dri2_drv->glFlush) + dri2_drv->glFlush(); + + ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL; + rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL; + cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL; + + if ((cctx == NULL && ddraw == NULL && rdraw == NULL) || + dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) { + if (dsurf && !_eglIsSurfaceLinked(dsurf)) + dri2_destroy_surface(drv, disp, dsurf); + if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf)) + dri2_destroy_surface(drv, disp, rsurf); + if (ctx != NULL && !_eglIsContextLinked(ctx)) + dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context); + + return EGL_TRUE; + } else { + _eglBindContext(&ctx, &dsurf, &rsurf); + + return EGL_FALSE; + } +} + +/** + * 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; + xcb_get_geometry_cookie_t cookie; + xcb_get_geometry_reply_t *reply; + xcb_screen_iterator_t s; + xcb_generic_error_t *error; + + 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; + + dri2_surf->region = XCB_NONE; + if (type == EGL_PBUFFER_BIT) { + dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn); + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + xcb_create_pixmap(dri2_dpy->conn, + _eglGetConfigKey(conf, EGL_BUFFER_SIZE), + dri2_surf->drawable, s.data->root, + dri2_surf->base.Width, dri2_surf->base.Height); + } else { + dri2_surf->drawable = window; + } + + 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_pixmap; + } + + xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable); + + if (type != EGL_PBUFFER_BIT) { + cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable); + reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error); + if (reply == NULL || error != NULL) { + _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); + free(error); + goto cleanup_dri_drawable; + } + + dri2_surf->base.Width = reply->width; + dri2_surf->base.Height = reply->height; + free(reply); + } + + return &dri2_surf->base; + + cleanup_dri_drawable: + dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable); + cleanup_pixmap: + if (type == EGL_PBUFFER_BIT) + xcb_free_pixmap(dri2_dpy->conn, dri2_surf->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); +} + +static _EGLSurface * +dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, const EGLint *attrib_list) +{ + return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf, + XCB_WINDOW_NONE, attrib_list); +} + +static EGLBoolean +dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp, + _EGLSurface *draw, xcb_xfixes_region_t region) +{ + struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv); + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); + _EGLContext *ctx; + xcb_dri2_copy_region_cookie_t cookie; + + if (dri2_drv->glFlush) { + ctx = _eglGetCurrentContext(); + if (ctx && ctx->DrawSurface == &dri2_surf->base) + dri2_drv->glFlush(); + } + + (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); + +#if 0 + /* FIXME: Add support for dri swapbuffers, that'll give us swap + * interval and page flipping (at least for fullscreen windows) as + * well as the page flip event. Unless surface->SwapBehavior is + * EGL_BUFFER_PRESERVED. */ +#if __DRI2_FLUSH_VERSION >= 2 + if (pdraw->psc->f) + (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable); +#endif +#endif + + if (!dri2_surf->have_fake_front) + return EGL_TRUE; + + cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn, + dri2_surf->drawable, + region, + XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT, + XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT); + free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL)); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw) +{ + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); + + return dri2_copy_region(drv, disp, draw, dri2_surf->region); +} + +static EGLBoolean +dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, + EGLint numRects, const EGLint *rects) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); + EGLBoolean ret; + xcb_xfixes_region_t region; + xcb_rectangle_t rectangles[16]; + int i; + + if (numRects > ARRAY_SIZE(rectangles)) + return dri2_copy_region(drv, disp, draw, dri2_surf->region); + + /* FIXME: Invert y here? */ + for (i = 0; i < numRects; i++) { + rectangles[i].x = rects[i * 4]; + rectangles[i].y = rects[i * 4 + 1]; + rectangles[i].width = rects[i * 4 + 2]; + rectangles[i].height = rects[i * 4 + 3]; + } + + region = xcb_generate_id(dri2_dpy->conn); + xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles); + ret = dri2_copy_region(drv, disp, draw, region); + xcb_xfixes_destroy_region(dri2_dpy->conn, region); + + return ret; +} + +/* + * Called from eglGetProcAddress() via drv->API.GetProcAddress(). + */ +static _EGLProc +dri2_get_proc_address(_EGLDriver *drv, const char *procname) +{ + /* FIXME: Do we need to support lookup of EGL symbols too? */ + + return (_EGLProc) _glapi_get_proc_address(procname); +} + +static EGLBoolean +dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface); + + /* FIXME: If EGL allows frontbuffer rendering for window surfaces, + * we need to copy fake to real here.*/ + + (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine) +{ + if (engine != EGL_CORE_NATIVE_ENGINE) + return _eglError(EGL_BAD_PARAMETER, "eglWaitNative"); + /* glXWaitX(); */ + + return EGL_TRUE; +} + +static void +dri2_unload(_EGLDriver *drv) +{ + struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv); + free(dri2_drv); +} + +static EGLBoolean +dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, + EGLNativePixmapType target) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); + xcb_gcontext_t gc; + + (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); + + gc = xcb_generate_id(dri2_dpy->conn); + xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL); + xcb_copy_area(dri2_dpy->conn, + dri2_surf->drawable, + target, + gc, + 0, 0, + 0, 0, + dri2_surf->base.Width, + dri2_surf->base.Height); + xcb_free_gc(dri2_dpy->conn, gc); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_bind_tex_image(_EGLDriver *drv, + _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); + struct dri2_egl_context *dri2_ctx; + _EGLContext *ctx; + GLint format, target; + + ctx = _eglGetCurrentContext(); + dri2_ctx = dri2_egl_context(ctx); + + if (!_eglBindTexImage(drv, disp, surf, buffer)) + return EGL_FALSE; + + switch (dri2_surf->base.TextureFormat) { + case EGL_TEXTURE_RGB: + format = __DRI_TEXTURE_FORMAT_RGB; + break; + case EGL_TEXTURE_RGBA: + format = __DRI_TEXTURE_FORMAT_RGBA; + break; + default: + assert(0); + } + + switch (dri2_surf->base.TextureTarget) { + case EGL_TEXTURE_2D: + target = GL_TEXTURE_2D; + break; + default: + assert(0); + } + + (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context, + target, format, + dri2_surf->dri_drawable); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_release_tex_image(_EGLDriver *drv, + _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer) +{ + return EGL_TRUE; +} + +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 dri2_egl_context *dri2_ctx = dri2_egl_context(ctx); + struct dri2_egl_image *dri2_img; + unsigned int attachments[1]; + xcb_drawable_t drawable; + xcb_dri2_get_buffers_cookie_t buffers_cookie; + xcb_dri2_get_buffers_reply_t *buffers_reply; + xcb_dri2_dri2_buffer_t *buffers; + xcb_get_geometry_cookie_t geometry_cookie; + xcb_get_geometry_reply_t *geometry_reply; + xcb_generic_error_t *error; + int stride, format; + + drawable = (xcb_drawable_t) buffer; + xcb_dri2_create_drawable (dri2_dpy->conn, drawable); + attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT; + buffers_cookie = + xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, + drawable, 1, 1, attachments); + geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable); + buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, + buffers_cookie, NULL); + buffers = xcb_dri2_get_buffers_buffers (buffers_reply); + if (buffers == NULL) { + return NULL; + } + + geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn, + geometry_cookie, &error); + if (geometry_reply == NULL || error != NULL) { + _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); + free(error); + free(buffers_reply); + } + + switch (geometry_reply->depth) { + case 16: + format = __DRI_IMAGE_FORMAT_RGB565; + break; + case 24: + format = __DRI_IMAGE_FORMAT_XRGB8888; + break; + case 32: + format = __DRI_IMAGE_FORMAT_ARGB8888; + break; + default: + _eglError(EGL_BAD_PARAMETER, + "dri2_create_image_khr: unsupported pixmap depth"); + free(buffers_reply); + free(geometry_reply); + return NULL; + } + + dri2_img = malloc(sizeof *dri2_img); + if (!dri2_img) { + free(buffers_reply); + free(geometry_reply); + _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } + + if (!_eglInitImage(&dri2_img->base, disp, attr_list)) { + free(buffers_reply); + free(geometry_reply); + return EGL_NO_IMAGE_KHR; + } + + stride = buffers[0].pitch / buffers[0].cpp; + dri2_img->dri_image = + dri2_dpy->image->createImageFromName(dri2_ctx->dri_context, + buffers_reply->width, + buffers_reply->height, + format, + buffers[0].name, + stride, + dri2_img); + + free(buffers_reply); + free(geometry_reply); + + return &dri2_img->base; +} + +static _EGLImage * +dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx, + EGLClientBuffer buffer, + const EGLint *attr_list) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx); + struct dri2_egl_image *dri2_img; + GLuint renderbuffer = (GLuint) buffer; + + if (renderbuffer == 0) { + _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } + + dri2_img = malloc(sizeof *dri2_img); + if (!dri2_img) { + _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } + + if (!_eglInitImage(&dri2_img->base, disp, attr_list)) + return EGL_NO_IMAGE_KHR; + + dri2_img->dri_image = + dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context, + renderbuffer, + dri2_img); + + return &dri2_img->base; +} + +static _EGLImage * +dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp, + _EGLContext *ctx, EGLenum target, + EGLClientBuffer buffer, const EGLint *attr_list) +{ + switch (target) { + case EGL_NATIVE_PIXMAP_KHR: + return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list); + case EGL_GL_RENDERBUFFER_KHR: + return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list); + default: + _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } +} + +static EGLBoolean +dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_image *dri2_img = dri2_egl_image(image); + + dri2_dpy->image->destroyImage(dri2_img->dri_image); + free(dri2_img); + + return EGL_TRUE; +} + +/** + * This is the main entrypoint into the driver, called by libEGL. + * Create a new _EGLDriver object and init its dispatch table. + */ +_EGLDriver * +_eglMain(const char *args) +{ + struct dri2_egl_driver *dri2_drv; + + dri2_drv = malloc(sizeof *dri2_drv); + if (!dri2_drv) + return NULL; + + memset(dri2_drv, 0, sizeof *dri2_drv); + _eglInitDriverFallbacks(&dri2_drv->base); + dri2_drv->base.API.Initialize = dri2_initialize; + dri2_drv->base.API.Terminate = dri2_terminate; + dri2_drv->base.API.CreateContext = dri2_create_context; + dri2_drv->base.API.MakeCurrent = dri2_make_current; + dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface; + dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface; + dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface; + dri2_drv->base.API.DestroySurface = dri2_destroy_surface; + dri2_drv->base.API.SwapBuffers = dri2_swap_buffers; + dri2_drv->base.API.GetProcAddress = dri2_get_proc_address; + dri2_drv->base.API.WaitClient = dri2_wait_client; + dri2_drv->base.API.WaitNative = dri2_wait_native; + dri2_drv->base.API.CopyBuffers = dri2_copy_buffers; + dri2_drv->base.API.BindTexImage = dri2_bind_tex_image; + dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image; + dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr; + dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr; + dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region; + + dri2_drv->base.Name = "DRI2"; + dri2_drv->base.Unload = dri2_unload; + + dri2_drv->glFlush = + (void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush"); + + return &dri2_drv->base; +} |