diff options
Diffstat (limited to 'src/egl/drivers/dri/egldri.c')
| -rw-r--r-- | src/egl/drivers/dri/egldri.c | 1138 |
1 files changed, 0 insertions, 1138 deletions
diff --git a/src/egl/drivers/dri/egldri.c b/src/egl/drivers/dri/egldri.c deleted file mode 100644 index cab0be2bd18..00000000000 --- a/src/egl/drivers/dri/egldri.c +++ /dev/null @@ -1,1138 +0,0 @@ -/** - * Generic EGL driver for DRI. - * - * This file contains all the code needed to interface DRI-based drivers - * with libEGL. - * - * There's a lot of dependencies on fbdev and the /sys/ filesystem. - */ - - -#include <dirent.h> -#include <stdio.h> -#include <string.h> -#include <linux/fb.h> -#include <assert.h> -#include <dlfcn.h> -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <sys/time.h> - -#include "egldriver.h" -#include "egldisplay.h" -#include "eglcontext.h" -#include "eglconfig.h" -#include "eglsurface.h" -#include "eglscreen.h" -#include "eglglobals.h" -#include "egllog.h" -#include "eglmode.h" - -#include "egldri.h" - -const char *sysfs = "/sys/class"; -#define None 0 -static const int empty_attribute_list[1] = { None }; - - -/** - * The bootstrap function. - * Return a new driDriver object and plug in API functions. - * This function, in turn, loads a specific DRI driver (ex: r200_dri.so). - */ -_EGLDriver * -_eglMain(_EGLDisplay *dpy) -{ - int length; - char path[NAME_MAX]; - struct dirent *dirent; -#if 1 - FILE *file; -#endif - DIR *dir; - _EGLDriver *driver = NULL;; - - snprintf(path, sizeof(path), "%s/drm", sysfs); - if (!(dir = opendir(path))) { - _eglLog(_EGL_WARNING, "%s DRM devices not found.", path); - return EGL_FALSE; - } - while ((dirent = readdir(dir))) { - - if (strncmp(&dirent->d_name[0], "card", 4) != 0) - continue; - if (strcmp(&dirent->d_name[4], &dpy->Name[1]) != 0) - continue; - - snprintf(path, sizeof(path), "%s/drm/card%s/dri_library_name", sysfs, &dpy->Name[1]); - _eglLog(_EGL_INFO, "Opening %s", path); -#if 1 - file = fopen(path, "r"); - if (!file) { - _eglLog(_EGL_WARNING, "Failed to open %s", path); - return NULL; - } - fgets(path, sizeof(path), file); - fclose(file); -#else - strcpy(path, "r200\n"); -#endif - if ((length = strlen(path)) > 0) - path[length - 1] = '\0'; /* remove the trailing newline from sysfs */ - strncat(path, "_dri", sizeof(path)); - - driver = _eglOpenDriver(dpy, path); - - break; - } - closedir(dir); - - return driver; -} - - -/** - * Called by eglCreateContext via drv->API.CreateContext(). - */ -static EGLContext -_eglDRICreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, - EGLContext share_list, const EGLint *attrib_list) -{ - driDisplay *disp = Lookup_driDisplay(dpy); - driContext *c, *share; - void *sharePriv; - _EGLConfig *conf; - __GLcontextModes visMode; - - c = (driContext *) calloc(1, sizeof(*c)); - if (!c) - return EGL_NO_CONTEXT; - - if (!_eglInitContext(drv, dpy, &c->Base, config, attrib_list)) { - free(c); - return EGL_NO_CONTEXT; - } - - if (share_list != EGL_NO_CONTEXT) { - _EGLContext *shareCtx = _eglLookupContext(share_list); - if (!shareCtx) { - _eglError(EGL_BAD_CONTEXT, "eglCreateContext(share_list)"); - return EGL_FALSE; - } - } - share = Lookup_driContext(share_list); - if (share) - sharePriv = share->driContext.private; - else - sharePriv = NULL; - - conf = _eglLookupConfig(drv, dpy, config); - assert(conf); - _eglConfigToContextModesRec(conf, &visMode); - - c->driContext.private = disp->driScreen.createNewContext(disp, &visMode, - GLX_WINDOW_BIT, sharePriv, &c->driContext); - if (!c->driContext.private) { - free(c); - return EGL_FALSE; - } - - /* generate handle and insert into hash table */ - _eglSaveContext(&c->Base); - - return c->Base.Handle; -} - - -static EGLBoolean -_eglDRIMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, - EGLSurface read, EGLContext context) -{ - driDisplay *disp = Lookup_driDisplay(dpy); - driContext *ctx = Lookup_driContext(context); - EGLBoolean b; - - b = _eglMakeCurrent(drv, dpy, draw, read, context); - if (!b) - return EGL_FALSE; - - if (ctx) { - ctx->driContext.bindContext(disp, 0, read, draw, &ctx->driContext); - } - else { - /* what's this??? */ - /* _mesa_make_current( NULL, NULL, NULL );*/ - } - return EGL_TRUE; -} - - -static EGLSurface -_eglDRICreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, - const EGLint *attrib_list) -{ - driSurface *surf; - - surf = (driSurface *) calloc(1, sizeof(*surf)); - if (!surf) { - return EGL_NO_SURFACE; - } - - if (!_eglInitSurface(drv, dpy, &surf->Base, EGL_PBUFFER_BIT, - config, attrib_list)) { - free(surf); - return EGL_NO_SURFACE; - } - - /* create software-based pbuffer */ - { -#if 0 - GLcontext *ctx = NULL; /* this _should_ be OK */ -#endif - GLvisual visMode; - _EGLConfig *conf = _eglLookupConfig(drv, dpy, config); - assert(conf); /* bad config should be caught earlier */ - _eglConfigToContextModesRec(conf, &visMode); - -#if 0 - surf->mesa_framebuffer = _mesa_create_framebuffer(&visMode); - _mesa_add_soft_renderbuffers(surf->mesa_framebuffer, - GL_TRUE, /* color bufs */ - visMode.haveDepthBuffer, - visMode.haveStencilBuffer, - visMode.haveAccumBuffer, - GL_FALSE, /* alpha */ - GL_FALSE /* aux */ ); - - /* set pbuffer/framebuffer size */ - _mesa_resize_framebuffer(ctx, surf->mesa_framebuffer, - surf->Base.Width, surf->Base.Height); -#endif - } - - _eglSaveSurface(&surf->Base); - - return surf->Base.Handle; -} - - -static EGLBoolean -_eglDRIDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface) -{ - driDisplay *disp = Lookup_driDisplay(dpy); - driSurface *fs = Lookup_driSurface(surface); - - _eglRemoveSurface(&fs->Base); - - fs->drawable.destroyDrawable(disp, fs->drawable.private); - - if (fs->Base.IsBound) { - fs->Base.DeletePending = EGL_TRUE; - } - else { - free(fs); - } - return EGL_TRUE; -} - - -static EGLBoolean -_eglDRIDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext context) -{ - driDisplay *disp = Lookup_driDisplay(dpy); - driContext *fc = Lookup_driContext(context); - - _eglRemoveContext(&fc->Base); - - fc->driContext.destroyContext(disp, 0, fc->driContext.private); - - if (fc->Base.IsBound) { - fc->Base.DeletePending = EGL_TRUE; - } - else { - free(fc); - } - return EGL_TRUE; -} - - -/** - * Create a drawing surface which can be directly displayed on a screen. - */ -static EGLSurface -_eglDRICreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg, - const EGLint *attrib_list) -{ - _EGLConfig *config = _eglLookupConfig(drv, dpy, cfg); - driDisplay *disp = Lookup_driDisplay(dpy); - driSurface *surface; - GLvisual visMode; - - surface = (driSurface *) calloc(1, sizeof(*surface)); - if (!surface) { - return EGL_NO_SURFACE; - } - - /* init base class, do error checking, etc. */ - if (!_eglInitSurface(drv, dpy, &surface->Base, EGL_SCREEN_BIT_MESA, - cfg, attrib_list)) { - free(surface); - return EGL_NO_SURFACE; - } - - _eglSaveSurface(&surface->Base); - - - /* - * XXX this is where we should allocate video memory for the surface! - */ - - - /* convert EGLConfig to GLvisual */ - _eglConfigToContextModesRec(config, &visMode); - - /* Create a new DRI drawable */ - if (!disp->driScreen.createNewDrawable(disp, &visMode, surface->Base.Handle, - &surface->drawable, GLX_WINDOW_BIT, - empty_attribute_list)) { - _eglRemoveSurface(&surface->Base); - free(surface); - return EGL_NO_SURFACE; - } - - return surface->Base.Handle; -} - - -/** - * Set the fbdev colormap to a simple linear ramp. - */ -static void -_eglDRILoadColormap(driScreen *scrn) -{ - char path[ NAME_MAX ]; - char *buffer; - int i, fd; - - /* cmap attribute uses 256 lines of 16 bytes. - * Allocate one extra char for the \0 added by sprintf() - */ - if ( !( buffer = malloc( 256 * 16 + 1 ) ) ) { - _eglLog(_EGL_WARNING, "Out of memory in _eglDRILoadColormap"); - return; - } - - /* cmap attribute uses 256 lines of 16 bytes */ - for ( i = 0; i < 256; i++ ) { - int c = (i << 8) | i; /* expand to 16-bit value */ - sprintf(&buffer[i * 16], "%02x%c%04x%04x%04x\n", i, ' ', c, c, c); - } - - snprintf(path, sizeof(path), "%s/graphics/%s/color_map", sysfs, scrn->fb); - if ( !( fd = open( path, O_RDWR ) ) ) { - _eglLog(_EGL_WARNING, "Unable to open %s to set colormap", path); - return; - } - write( fd, buffer, 256 * 16 ); - close( fd ); - - free( buffer ); -} - - -/** - * Show the given surface on the named screen. - * If surface is EGL_NO_SURFACE, disable the screen's output. - * Called via eglShowSurfaceMESA(). - */ -EGLBoolean -_eglDRIShowScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, - EGLScreenMESA screen, - EGLSurface surface, EGLModeMESA m) -{ - driDisplay *display = Lookup_driDisplay(dpy); - driScreen *scrn = Lookup_driScreen(dpy, screen); - driSurface *surf = Lookup_driSurface(surface); - _EGLMode *mode = _eglLookupMode(dpy, m); - FILE *file; - char fname[NAME_MAX], buffer[1000]; - int temp; - - _eglLog(_EGL_DEBUG, "Enter _eglDRIShowScreenSurface"); - - /* This will check that surface, screen, and mode are valid. - * Also, it checks that the surface is large enough for the mode, etc. - */ - if (!_eglShowScreenSurfaceMESA(drv, dpy, screen, surface, m)) - return EGL_FALSE; - - assert(surface == EGL_NO_SURFACE || surf); - assert(m == EGL_NO_MODE_MESA || mode); - assert(scrn); - - /* - * Blank/unblank screen depending on if m == EGL_NO_MODE_MESA - */ - snprintf(fname, sizeof(fname), "%s/graphics/%s/blank", sysfs, scrn->fb); - file = fopen(fname, "r+"); - if (!file) { - _eglLog(_EGL_WARNING, "kernel patch?? chown all fb sysfs attrib to allow" - " write - %s\n", fname); - return EGL_FALSE; - } - snprintf(buffer, sizeof(buffer), "%d", - (m == EGL_NO_MODE_MESA ? VESA_POWERDOWN : VESA_VSYNC_SUSPEND)); - fputs(buffer, file); - fclose(file); - - if (m == EGL_NO_MODE_MESA) { - /* all done! */ - return EGL_TRUE; - } - - _eglLog(_EGL_INFO, "Setting display mode to %d x %d, %d bpp", - mode->Width, mode->Height, display->bpp); - - /* - * Set the display mode - */ - snprintf(fname, sizeof(fname), "%s/graphics/%s/mode", sysfs, scrn->fb); - file = fopen(fname, "r+"); - if (!file) { - _eglLog(_EGL_WARNING, "Failed to open %s to set mode", fname); - return EGL_FALSE; - } - /* note: nothing happens without the \n! */ - snprintf(buffer, sizeof(buffer), "%s\n", mode->Name); - fputs(buffer, file); - fclose(file); - _eglLog(_EGL_INFO, "Set mode to %s in %s", mode->Name, fname); - - /* - * Set display bpp - */ - snprintf(fname, sizeof(fname), "%s/graphics/%s/bits_per_pixel", - sysfs, scrn->fb); - file = fopen(fname, "r+"); - if (!file) { - _eglLog(_EGL_WARNING, "Failed to open %s to set bpp", fname); - return EGL_FALSE; - } - display->bpp = GET_CONFIG_ATTRIB(surf->Base.Config, EGL_BUFFER_SIZE); - display->cpp = display->bpp / 8; - snprintf(buffer, sizeof(buffer), "%d", display->bpp); - fputs(buffer, file); - fclose(file); - - /* - * Unblank display - */ - snprintf(fname, sizeof(fname), "%s/graphics/%s/blank", sysfs, scrn->fb); - file = fopen(fname, "r+"); - if (!file) { - _eglLog(_EGL_WARNING, "Failed to open %s", fname); - return EGL_FALSE; - } - snprintf(buffer, sizeof(buffer), "%d", VESA_NO_BLANKING); - fputs(buffer, file); - fclose(file); - - /* - * Set fbdev buffer virtual size to surface's size. - */ - snprintf(fname, sizeof(fname), "%s/graphics/%s/virtual_size", sysfs, scrn->fb); - file = fopen(fname, "r+"); - snprintf(buffer, sizeof(buffer), "%d,%d", surf->Base.Width, surf->Base.Height); - fputs(buffer, file); - rewind(file); - fgets(buffer, sizeof(buffer), file); - sscanf(buffer, "%d,%d", &display->virtualWidth, &display->virtualHeight); - fclose(file); - - /* - * round up pitch as needed - */ - temp = display->virtualWidth; - switch (display->bpp / 8) { - case 1: temp = (display->virtualWidth + 127) & ~127; break; - case 2: temp = (display->virtualWidth + 31) & ~31; break; - case 3: - case 4: temp = (display->virtualWidth + 15) & ~15; break; - default: - _eglLog(_EGL_WARNING, "Bad display->bpp = %d in _eglDRIShowScreenSurface"); - } - display->virtualWidth = temp; - - /* - * sanity check - */ - if (surf->Base.Width < display->virtualWidth || - surf->Base.Height < display->virtualHeight) { - /* this case _should_ have been caught at the top of this function */ - _eglLog(_EGL_WARNING, "too small of surface in _eglDRIShowScreenSurfaceMESA " - "%d x %d < %d x %d", - surf->Base.Width, - surf->Base.Height, - display->virtualWidth, - display->virtualHeight); - /* - return EGL_FALSE; - */ - } - - /* This used to be done in the _eglDRICreateScreens routine. */ - _eglDRILoadColormap(scrn); - - return EGL_TRUE; -} - - -/** - * Called by eglSwapBuffers via the drv->API.SwapBuffers() pointer. - * - * If the backbuffer is on a videocard, this is extraordinarily slow! - */ -static EGLBoolean -_eglDRISwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw) -{ - driSurface *drawable = Lookup_driSurface(draw); - - /* this does error checking */ - if (!_eglSwapBuffers(drv, dpy, draw)) - return EGL_FALSE; - - drawable->drawable.swapBuffers(NULL, drawable->drawable.private); - - return EGL_TRUE; -} - - -EGLBoolean -_eglDRIGetDisplayInfo(driDisplay *dpy) -{ - char path[ NAME_MAX ]; - FILE *file; - int i, rc; - drmSetVersion sv; - drm_magic_t magic; - - snprintf( path, sizeof( path ), "%s/graphics/fb%d/device/device", sysfs, dpy->minor ); - file = fopen( path, "r" ); - if (!file) { - _eglLog(_EGL_WARNING, "Unable to open %s", path); - return EGL_FALSE; - } - fgets( path, sizeof( path ), file ); - sscanf( path, "%x", &dpy->chipset ); - fclose( file ); - - sprintf(path, DRM_DEV_NAME, DRM_DIR_NAME, dpy->minor); - if ( ( dpy->drmFD = open(path, O_RDWR, 0) ) < 0 ) { - _eglLog(_EGL_WARNING, "drmOpen failed."); - return EGL_FALSE; - } - - /* Set the interface version, asking for 1.2 */ - sv.drm_di_major = 1; - sv.drm_di_minor = 2; - sv.drm_dd_major = -1; - if ((rc = drmSetInterfaceVersion(dpy->drmFD, &sv))) - return EGL_FALSE; - - /* self authorize */ - if (drmGetMagic(dpy->drmFD, &magic)) - return EGL_FALSE; - if (drmAuthMagic(dpy->drmFD, magic)) - return EGL_FALSE; - - /* Map framebuffer and SAREA */ - for (i = 0; ; i++) { - drm_handle_t handle, offset; - drmSize size; - drmMapType type; - drmMapFlags flags; - int mtrr; - - if (drmGetMap(dpy->drmFD, i, &offset, &size, &type, &flags, - &handle, &mtrr)) - break; - - if (type == DRM_FRAME_BUFFER) { - rc = drmMap( dpy->drmFD, offset, size, (drmAddressPtr) &dpy->pFB); - if (rc < 0) { - _eglLog(_EGL_WARNING, "drmMap DRM_FAME_BUFFER failed"); - return EGL_FALSE; - } - dpy->fbSize = size; - _eglLog(_EGL_INFO, "Found framebuffer size: %d", dpy->fbSize); - } - else if (type == DRM_SHM) { - rc = drmMap(dpy->drmFD, offset, size, (drmAddressPtr) &dpy->pSAREA); - if (rc < 0 ) { - _eglLog(_EGL_WARNING, "drmMap DRM_SHM failed."); - return EGL_FALSE; - } - dpy->SAREASize = SAREA_MAX; - _eglLog(_EGL_DEBUG, "mapped SAREA 0x%08lx to %p, size %d", - (unsigned long) offset, dpy->pSAREA, dpy->SAREASize ); - } - } - - if (!dpy->pFB) { - _eglLog(_EGL_WARNING, "failed to map framebuffer"); - return EGL_FALSE; - } - - if (!dpy->pSAREA) { - /* if this happens, make sure you're using the most recent DRM modules */ - _eglLog(_EGL_WARNING, "failed to map SAREA"); - return EGL_FALSE; - } - - memset( dpy->pSAREA, 0, dpy->SAREASize ); - - return EGL_TRUE; -} - - - /* Return the DRI per screen structure */ -static __DRIscreen * -__eglFindDRIScreen(__DRInativeDisplay *ndpy, int scrn) -{ - driDisplay *disp = (driDisplay *)ndpy; - return &disp->driScreen; -} - - -static GLboolean -__eglCreateContextWithConfig(__DRInativeDisplay* ndpy, int screen, - int configID, void* context, - drm_context_t * hHWContext) -{ - __DRIscreen *pDRIScreen; - __DRIscreenPrivate *psp; - - pDRIScreen = __eglFindDRIScreen(ndpy, screen); - if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { - return GL_FALSE; - } - psp = (__DRIscreenPrivate *) pDRIScreen->private; - if (psp->fd) { - if (drmCreateContext(psp->fd, hHWContext)) { - _eglLog(_EGL_WARNING, "drmCreateContext failed."); - return GL_FALSE; - } - *(void**)context = (void*) *hHWContext; - } -#if 0 - __DRIscreen *pDRIScreen; - __DRIscreenPrivate *psp; - - pDRIScreen = __glXFindDRIScreen(dpy, screen); - if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { - return GL_FALSE; - } - - psp = (__DRIscreenPrivate *) pDRIScreen->private; - - if (psp->fd) { - if (drmCreateContext(psp->fd, hHWContext)) { - _eglLog(_EGL_WARNING, "drmCreateContext failed."); - return GL_FALSE; - } - *(void**)contextID = (void*) *hHWContext; - } -#endif - return GL_TRUE; -} - - -static GLboolean -__eglDestroyContext( __DRInativeDisplay * ndpy, int screen, __DRIid context ) -{ - __DRIscreen *pDRIScreen; - __DRIscreenPrivate *psp; - - pDRIScreen = __eglFindDRIScreen(ndpy, screen); - if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { - return GL_FALSE; - } - psp = (__DRIscreenPrivate *) pDRIScreen->private; - if (psp->fd) - drmDestroyContext(psp->fd, context); - - return GL_TRUE; -} - - -static GLboolean -__eglCreateDrawable(__DRInativeDisplay * ndpy, int screen, - __DRIid drawable, drm_drawable_t * hHWDrawable) -{ - __DRIscreen *pDRIScreen; - __DRIscreenPrivate *psp; - - pDRIScreen = __eglFindDRIScreen(ndpy, screen); - if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { - return GL_FALSE; - } - psp = (__DRIscreenPrivate *) pDRIScreen->private; - if (psp->fd) { - if (drmCreateDrawable(psp->fd, hHWDrawable)) { - _eglLog(_EGL_WARNING, "drmCreateDrawable failed."); - return GL_FALSE; - } - } - return GL_TRUE; -} - - -static GLboolean -__eglDestroyDrawable( __DRInativeDisplay * ndpy, int screen, __DRIid drawable ) -{ - __DRIscreen *pDRIScreen; - __DRIscreenPrivate *psp; - - pDRIScreen = __eglFindDRIScreen(ndpy, screen); - if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { - return GL_FALSE; - } - psp = (__DRIscreenPrivate *) pDRIScreen->private; - if (psp->fd) - drmDestroyDrawable(psp->fd, drawable); - - return GL_TRUE; -} - -static GLboolean -__eglGetDrawableInfo(__DRInativeDisplay * ndpy, int screen, __DRIid drawable, - unsigned int* index, unsigned int* stamp, - int* X, int* Y, int* W, int* H, - int* numClipRects, drm_clip_rect_t ** pClipRects, - int* backX, int* backY, - int* numBackClipRects, drm_clip_rect_t ** pBackClipRects ) -{ - __DRIscreen *pDRIScreen; - __DRIscreenPrivate *psp; - driSurface *surf = Lookup_driSurface(drawable); - - pDRIScreen = __eglFindDRIScreen(ndpy, screen); - - if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { - return GL_FALSE; - } - psp = (__DRIscreenPrivate *) pDRIScreen->private; - *X = 0; - *Y = 0; - *W = surf->Base.Width; - *H = surf->Base.Height; - - *backX = 0; - *backY = 0; - *numBackClipRects = 0; - *pBackClipRects = NULL; - - *numClipRects = 1; - *pClipRects = malloc(sizeof(**pClipRects)); - **pClipRects = (drm_clip_rect_t){0, 0, surf->Base.Width, surf->Base.Height}; - - psp->pSAREA->drawableTable[0].stamp = 1; - *stamp = 1; -#if 0 - GLXDrawable drawable = (GLXDrawable) draw; - drm_clip_rect_t * cliprect; - Display* display = (Display*)dpy; - __DRIcontextPrivate *pcp = (__DRIcontextPrivate *)CurrentContext->driContext.private; - if (drawable == 0) { - return GL_FALSE; - } - - cliprect = (drm_clip_rect_t*) _mesa_malloc(sizeof(drm_clip_rect_t)); - cliprect->x1 = drawable->x; - cliprect->y1 = drawable->y; - cliprect->x2 = drawable->x + drawable->w; - cliprect->y2 = drawable->y + drawable->h; - - /* the drawable index is by client id */ - *index = display->clientID; - - *stamp = pcp->driScreenPriv->pSAREA->drawableTable[display->clientID].stamp; - *x = drawable->x; - *y = drawable->y; - *width = drawable->w; - *height = drawable->h; - *numClipRects = 1; - *pClipRects = cliprect; - - *backX = drawable->x; - *backY = drawable->y; - *numBackClipRects = 0; - *pBackClipRects = 0; -#endif - return GL_TRUE; -} - - -/** - * Implement \c __DRIinterfaceMethods::getProcAddress. - */ -static __DRIfuncPtr -get_proc_address(const char * proc_name) -{ - return NULL; -} - - -/** - * Destroy a linked list of \c __GLcontextModes structures created by - * \c _gl_context_modes_create. - * - * \param modes Linked list of structures to be destroyed. All structres - * in the list will be freed. - */ -static void -__egl_context_modes_destroy(__GLcontextModes *modes) -{ - while ( modes != NULL ) { - __GLcontextModes * const next = modes->next; - - free( modes ); - modes = next; - } -} - - -/** - * Allocate a linked list of \c __GLcontextModes structures. The fields of - * each structure will be initialized to "reasonable" default values. In - * most cases this is the default value defined by table 3.4 of the GLX - * 1.3 specification. This means that most values are either initialized to - * zero or \c GLX_DONT_CARE (which is -1). As support for additional - * extensions is added, the new values will be initialized to appropriate - * values from the extension specification. - * - * \param count Number of structures to allocate. - * \param minimum_size Minimum size of a structure to allocate. This allows - * for differences in the version of the - * \c __GLcontextModes stucture used in libGL and in a - * DRI-based driver. - * \returns A pointer to the first element in a linked list of \c count - * stuctures on success, or \c NULL on failure. - * - * \warning Use of \c minimum_size does \b not guarantee binary compatibility. - * The fundamental assumption is that if the \c minimum_size - * specified by the driver and the size of the \c __GLcontextModes - * structure in libGL is the same, then the meaning of each byte in - * the structure is the same in both places. \b Be \b careful! - * Basically this means that fields have to be added in libGL and - * then propagated to drivers. Drivers should \b never arbitrarilly - * extend the \c __GLcontextModes data-structure. - */ -static __GLcontextModes * -__egl_context_modes_create(unsigned count, size_t minimum_size) -{ - const size_t size = (minimum_size > sizeof( __GLcontextModes )) - ? minimum_size : sizeof( __GLcontextModes ); - __GLcontextModes * base = NULL; - __GLcontextModes ** next; - unsigned i; - - next = & base; - for ( i = 0 ; i < count ; i++ ) { - *next = (__GLcontextModes *) malloc( size ); - if ( *next == NULL ) { - __egl_context_modes_destroy( base ); - base = NULL; - break; - } - - (void) memset( *next, 0, size ); - (*next)->visualID = GLX_DONT_CARE; - (*next)->visualType = GLX_DONT_CARE; - (*next)->visualRating = GLX_NONE; - (*next)->transparentPixel = GLX_NONE; - (*next)->transparentRed = GLX_DONT_CARE; - (*next)->transparentGreen = GLX_DONT_CARE; - (*next)->transparentBlue = GLX_DONT_CARE; - (*next)->transparentAlpha = GLX_DONT_CARE; - (*next)->transparentIndex = GLX_DONT_CARE; - (*next)->xRenderable = GLX_DONT_CARE; - (*next)->fbconfigID = GLX_DONT_CARE; - (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML; - - next = & ((*next)->next); - } - - return base; -} - - -static GLboolean -__eglWindowExists(__DRInativeDisplay *dpy, __DRIid draw) -{ - return EGL_TRUE; -} - - -/** - * Get the unadjusted system time (UST). Currently, the UST is measured in - * microseconds since Epoc. The actual resolution of the UST may vary from - * system to system, and the units may vary from release to release. - * Drivers should not call this function directly. They should instead use - * \c glXGetProcAddress to obtain a pointer to the function. - * - * \param ust Location to store the 64-bit UST - * \returns Zero on success or a negative errno value on failure. - * - * \sa glXGetProcAddress, PFNGLXGETUSTPROC - * - * \since Internal API version 20030317. - */ -static int -__eglGetUST(int64_t *ust) -{ - struct timeval tv; - - if ( ust == NULL ) { - return -EFAULT; - } - - if ( gettimeofday( & tv, NULL ) == 0 ) { - ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec; - return 0; - } - else { - return -errno; - } -} - -/** - * Determine the refresh rate of the specified drawable and display. - * - * \param dpy Display whose refresh rate is to be determined. - * \param drawable Drawable whose refresh rate is to be determined. - * \param numerator Numerator of the refresh rate. - * \param demoninator Denominator of the refresh rate. - * \return If the refresh rate for the specified display and drawable could - * be calculated, True is returned. Otherwise False is returned. - * - * \note This function is implemented entirely client-side. A lot of other - * functionality is required to export GLX_OML_sync_control, so on - * XFree86 this function can be called for direct-rendering contexts - * when GLX_OML_sync_control appears in the client extension string. - */ -static GLboolean -__eglGetMSCRate(__DRInativeDisplay * dpy, __DRIid drawable, - int32_t * numerator, int32_t * denominator) -{ - return EGL_TRUE; -} - - -/** - * Table of functions exported by the loader to the driver. - */ -static const __DRIinterfaceMethods interface_methods = { - get_proc_address, - - __egl_context_modes_create, - __egl_context_modes_destroy, - - __eglFindDRIScreen, - __eglWindowExists, - - __eglCreateContextWithConfig, - __eglDestroyContext, - - __eglCreateDrawable, - __eglDestroyDrawable, - __eglGetDrawableInfo, - - __eglGetUST, - __eglGetMSCRate, -}; - - -static int -__glXGetInternalVersion(void) -{ - return 20050725; -} - -static const char createNewScreenName[] = "__driCreateNewScreen_20050727"; - - -/** - * Do per-display initialization. - */ -EGLBoolean -_eglDRICreateDisplay(driDisplay *dpy, __DRIframebuffer *framebuffer) -{ - PFNCREATENEWSCREENFUNC createNewScreen; - int api_ver = __glXGetInternalVersion(); - __DRIversion ddx_version; - __DRIversion dri_version; - __DRIversion drm_version; - drmVersionPtr version; - - version = drmGetVersion( dpy->drmFD ); - if ( version ) { - drm_version.major = version->version_major; - drm_version.minor = version->version_minor; - drm_version.patch = version->version_patchlevel; - drmFreeVersion( version ); - } - else { - drm_version.major = -1; - drm_version.minor = -1; - drm_version.patch = -1; - } - - /* - * Get device name (like "tdfx") and the ddx version numbers. - * We'll check the version in each DRI driver's "createScreen" - * function. - */ - ddx_version.major = 4; - ddx_version.minor = 0; - ddx_version.patch = 0; - - /* - * Get the DRI X extension version. - */ - dri_version.major = 4; - dri_version.minor = 0; - dri_version.patch = 0; - - createNewScreen = ( PFNCREATENEWSCREENFUNC ) dlsym( dpy->Base.Driver->LibHandle, createNewScreenName ); - if ( !createNewScreen ) { - _eglLog(_EGL_WARNING, "Couldn't find %s function in the driver.", - createNewScreenName ); - return EGL_FALSE; - } - - dpy->driScreen.private = createNewScreen( dpy, 0, &dpy->driScreen, NULL, - &ddx_version, &dri_version, - &drm_version, framebuffer, - dpy->pSAREA, dpy->drmFD, - api_ver, - & interface_methods, - NULL); - if (!dpy->driScreen.private) - return EGL_FALSE; - - DRM_UNLOCK( dpy->drmFD, dpy->pSAREA, dpy->serverContext ); - - return EGL_TRUE; -} - - -/** - * Create all the EGL screens for the given display. - */ -EGLBoolean -_eglDRICreateScreens(driDisplay *dpy) -{ - const int numScreens = 1; /* XXX fix this someday */ - int i; - - for (i = 0; i < numScreens; i++) { - char path[ NAME_MAX ]; - FILE *file; - driScreen *s; - - /* Create a screen */ - if ( !( s = ( driScreen * ) calloc( 1, sizeof( *s ) ) ) ) - return EGL_FALSE; - - snprintf( s->fb, NAME_MAX, "fb%d", dpy->minor ); - _eglInitScreen( &s->Base ); - - _eglAddScreen( &dpy->Base, &s->Base ); - - /* Create the screen's mode list */ - snprintf( path, sizeof( path ), "%s/graphics/%s/modes", sysfs, s->fb ); - file = fopen( path, "r" ); - while ( fgets( path, sizeof( path ), file ) ) { - unsigned int x, y, r; - char c; - path[ strlen( path ) - 1 ] = '\0'; /* strip off \n from sysfs */ - sscanf( path, "%c:%ux%u-%u", &c, &x, &y, &r ); - _eglAddNewMode( &s->Base, x, y, r * 1000, path ); - } - fclose( file ); - - /* - * NOTE: we used to set the colormap here, but that didn't work reliably. - * Some entries near the start of the table would get corrupted by later - * mode changes. - */ - } - - return EGL_TRUE; -} - - -EGLBoolean -_eglDRIInitialize(_EGLDriver *drv, EGLDisplay dpy, - EGLint *major, EGLint *minor) -{ - _EGLDisplay *disp = _eglLookupDisplay(dpy); - driDisplay *display; - - assert(disp); - - /* Create new driDisplay object to replace the _EGLDisplay that was - * previously created. - */ - display = calloc(1, sizeof(*display)); - display->Base = *disp; - _eglHashInsert(_eglGlobal.Displays, disp->Handle, display); - free(disp); - - *major = 1; - *minor = 0; - - sscanf(&disp->Name[1], "%d", &display->minor); - - drv->Initialized = EGL_TRUE; - return EGL_TRUE; -} - - -static EGLBoolean -_eglDRITerminate(_EGLDriver *drv, EGLDisplay dpy) -{ - driDisplay *display = Lookup_driDisplay(dpy); - _eglCleanupDisplay(&display->Base);/*rename that function*/ - free(display); - free(drv); - return EGL_TRUE; -} - - -/** - * Plug in the DRI-specific functions into the driver's dispatch table. - * Also, enable some EGL extensions. - */ -void -_eglDRIInitDriverFallbacks(_EGLDriver *drv) -{ - _eglInitDriverFallbacks(drv); - - drv->API.Initialize = _eglDRIInitialize; - drv->API.Terminate = _eglDRITerminate; - drv->API.CreateContext = _eglDRICreateContext; - drv->API.MakeCurrent = _eglDRIMakeCurrent; - drv->API.CreatePbufferSurface = _eglDRICreatePbufferSurface; - drv->API.DestroySurface = _eglDRIDestroySurface; - drv->API.DestroyContext = _eglDRIDestroyContext; - drv->API.CreateScreenSurfaceMESA = _eglDRICreateScreenSurfaceMESA; - drv->API.ShowScreenSurfaceMESA = _eglDRIShowScreenSurfaceMESA; - drv->API.SwapBuffers = _eglDRISwapBuffers; - - /* enable supported extensions */ - drv->Extensions.MESA_screen_surface = EGL_TRUE; - drv->Extensions.MESA_copy_context = EGL_TRUE; -} |