diff options
Diffstat (limited to 'src/gallium/state_trackers/egl/egl_tracker.c')
| -rw-r--r-- | src/gallium/state_trackers/egl/egl_tracker.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl/egl_tracker.c b/src/gallium/state_trackers/egl/egl_tracker.c new file mode 100644 index 00000000000..3ca5acb68bf --- /dev/null +++ b/src/gallium/state_trackers/egl/egl_tracker.c @@ -0,0 +1,217 @@ + +#include "utils.h" + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include "egl_tracker.h" + +#include "egllog.h" +#include "state_tracker/drm_api.h" + +#include "pipe/p_screen.h" +#include "pipe/p_winsys.h" + +/** HACK */ +void* driDriverAPI; +extern const struct dri_extension card_extensions[]; + + +/* + * Exported functions + */ + +/** + * The bootstrap function. Return a new drm_driver object and + * plug in API functions. + */ +_EGLDriver * +_eglMain(_EGLDisplay *dpy, const char *args) +{ + struct drm_device *drm; + + drm = (struct drm_device *) calloc(1, sizeof(struct drm_device)); + if (!drm) { + return NULL; + } + + /* First fill in the dispatch table with defaults */ + _eglInitDriverFallbacks(&drm->base); + /* then plug in our Drm-specific functions */ + drm->base.API.Initialize = drm_initialize; + drm->base.API.Terminate = drm_terminate; + drm->base.API.CreateContext = drm_create_context; + drm->base.API.MakeCurrent = drm_make_current; + drm->base.API.CreateWindowSurface = drm_create_window_surface; + drm->base.API.CreatePixmapSurface = drm_create_pixmap_surface; + drm->base.API.CreatePbufferSurface = drm_create_pbuffer_surface; + drm->base.API.DestroySurface = drm_destroy_surface; + drm->base.API.DestroyContext = drm_destroy_context; + drm->base.API.CreateScreenSurfaceMESA = drm_create_screen_surface_mesa; + drm->base.API.ShowScreenSurfaceMESA = drm_show_screen_surface_mesa; + drm->base.API.SwapBuffers = drm_swap_buffers; + + drm->base.ClientAPIsMask = EGL_OPENGL_BIT /*| EGL_OPENGL_ES_BIT*/; + drm->base.Name = "DRM/Gallium/Win"; + + /* enable supported extensions */ + drm->base.Extensions.MESA_screen_surface = EGL_TRUE; + drm->base.Extensions.MESA_copy_context = EGL_TRUE; + + return &drm->base; +} + +static void +drm_get_device_id(struct drm_device *device) +{ + char path[512]; + FILE *file; + + /* TODO get the real minor */ + int minor = 0; + + snprintf(path, sizeof(path), "/sys/class/drm/card%d/device/device", minor); + file = fopen(path, "r"); + if (!file) { + _eglLog(_EGL_WARNING, "Could not retrive device ID\n"); + return; + } + + fgets(path, sizeof( path ), file); + sscanf(path, "%x", &device->deviceID); + fclose(file); +} + +static void +drm_update_res(struct drm_device *dev) +{ + drmModeFreeResources(dev->res); + dev->res = drmModeGetResources(dev->drmFD); +} + +static void +drm_add_modes_from_connector(_EGLScreen *screen, drmModeConnectorPtr connector) +{ + struct drm_mode_modeinfo *m; + int i; + + for (i = 0; i < connector->count_modes; i++) { + m = &connector->modes[i]; + _eglAddNewMode(screen, m->hdisplay, m->vdisplay, m->vrefresh, m->name); + } +} + +EGLBoolean +drm_initialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *major, EGLint *minor) +{ + _EGLDisplay *disp = _eglLookupDisplay(dpy); + struct drm_device *dev = (struct drm_device *)drv; + struct drm_screen *screen = NULL; + drmModeConnectorPtr connector = NULL; + drmModeResPtr res = NULL; + unsigned count_connectors = 0; + int num_screens = 0; + EGLint i; + int fd; + + fd = drmOpen("i915", NULL); + if (fd < 0) + goto err_fd; + + dev->drmFD = fd; + drm_get_device_id(dev); + + dev->screen = drm_api_hocks.create_screen(dev->drmFD, dev->deviceID); + if (!dev->screen) + goto err_screen; + dev->winsys = dev->screen->winsys; + + /* TODO HACK */ + driInitExtensions(NULL, card_extensions, GL_FALSE); + + drm_update_res(dev); + res = dev->res; + if (res) + count_connectors = res->count_connectors; + else + _eglLog(_EGL_WARNING, "Could not retrive kms information\n"); + + for(i = 0; i < count_connectors && i < MAX_SCREENS; i++) { + connector = drmModeGetConnector(fd, res->connectors[i]); + + if (!connector) + continue; + + if (connector->connection != DRM_MODE_CONNECTED) { + drmModeFreeConnector(connector); + continue; + } + + screen = malloc(sizeof(struct drm_screen)); + memset(screen, 0, sizeof(*screen)); + screen->connector = connector; + screen->connectorID = connector->connector_id; + _eglInitScreen(&screen->base); + _eglAddScreen(disp, &screen->base); + drm_add_modes_from_connector(&screen->base, connector); + dev->screens[num_screens++] = screen; + } + dev->count_screens = num_screens; + + /* for now we only have one config */ + _EGLConfig *config = calloc(1, sizeof(*config)); + memset(config, 1, sizeof(*config)); + _eglInitConfig(config, 1); + _eglSetConfigAttrib(config, EGL_RED_SIZE, 8); + _eglSetConfigAttrib(config, EGL_GREEN_SIZE, 8); + _eglSetConfigAttrib(config, EGL_BLUE_SIZE, 8); + _eglSetConfigAttrib(config, EGL_ALPHA_SIZE, 8); + _eglSetConfigAttrib(config, EGL_BUFFER_SIZE, 32); + _eglSetConfigAttrib(config, EGL_DEPTH_SIZE, 24); + _eglSetConfigAttrib(config, EGL_STENCIL_SIZE, 8); + _eglSetConfigAttrib(config, EGL_SURFACE_TYPE, EGL_PBUFFER_BIT); + _eglAddConfig(disp, config); + + drv->Initialized = EGL_TRUE; + + *major = 1; + *minor = 4; + + return EGL_TRUE; + +err_screen: + drmClose(fd); +err_fd: + return EGL_FALSE; +} + +EGLBoolean +drm_terminate(_EGLDriver *drv, EGLDisplay dpy) +{ + struct drm_device *dev = (struct drm_device *)drv; + struct drm_screen *screen; + int i = 0; + + drmFreeVersion(dev->version); + + for (i = 0; i < dev->count_screens; i++) { + screen = dev->screens[i]; + + if (screen->shown) + drm_takedown_shown_screen(drv, screen); + + drmModeFreeConnector(screen->connector); + _eglDestroyScreen(&screen->base); + dev->screens[i] = NULL; + } + + dev->screen->destroy(dev->screen); + dev->winsys = NULL; + + drmClose(dev->drmFD); + + _eglCleanupDisplay(_eglLookupDisplay(dpy)); + free(dev); + + return EGL_TRUE; +} |