diff options
Diffstat (limited to 'src/egl')
| -rw-r--r-- | src/egl/drivers/dri/Makefile | 64 | ||||
| -rw-r--r-- | src/egl/drivers/dri/egldri.c | 1001 |
2 files changed, 1065 insertions, 0 deletions
diff --git a/src/egl/drivers/dri/Makefile b/src/egl/drivers/dri/Makefile new file mode 100644 index 0000000000..6b50959a5a --- /dev/null +++ b/src/egl/drivers/dri/Makefile @@ -0,0 +1,64 @@ +# src/egl/drivers/dri/Makefile + +TOP = ../../../.. +include $(TOP)/configs/current + + +### Include directories +INCLUDE_DIRS = \ + -I. \ + -I$(DRM_SOURCE_PATH)/shared-core \ + -I$(DRM_SOURCE_PATH)/libdrm \ + -I$(TOP)/include \ + -I$(TOP)/include/GL/internal \ + -I$(TOP)/src/mesa \ + -I$(TOP)/src/mesa/main \ + -I$(TOP)/src/mesa/glapi \ + -I$(TOP)/src/mesa/math \ + -I$(TOP)/src/mesa/transform \ + -I$(TOP)/src/mesa/shader \ + -I$(TOP)/src/mesa/swrast \ + -I$(TOP)/src/mesa/swrast_setup \ + -I$(TOP)/src/egl/main \ + -I$(TOP)/src/mesa/drivers/dri/common + + +HEADERS = egldri.h + +SOURCES = egldri.c \ + $(DRM_SOURCE_PATH)/libdrm/xf86drm.c \ + $(DRM_SOURCE_PATH)/libdrm/xf86drmHash.c \ + $(DRM_SOURCE_PATH)/libdrm/xf86drmRandom.c + +OBJECTS = $(SOURCES:.c=.o) + + +.c.o: + $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@ + + + +default: depend library Makefile + + +# EGLdri Library +library: $(LIB_DIR)/libEGLdri.so + +$(LIB_DIR)/libEGLdri.so: $(OBJECTS) + $(TOP)/bin/mklib -o EGLdri -major 1 -minor 0 \ + -install $(LIB_DIR) -ldl $(OBJECTS) + + +clean: + rm -f *.o + rm -f *.so + +depend: $(SOURCES) $(HEADERS) + @ echo "running $(MKDEP)" + @ touch depend + $(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) \ + $(SOURCES) $(HEADERS) > /dev/null + +include depend +# DO NOT DELETE + diff --git a/src/egl/drivers/dri/egldri.c b/src/egl/drivers/dri/egldri.c new file mode 100644 index 0000000000..2d45127769 --- /dev/null +++ b/src/egl/drivers/dri/egldri.c @@ -0,0 +1,1001 @@ +/* + * Generic EGL driver for DRI + */ +#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 "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. + */ +_EGLDriver * +_eglMain(_EGLDisplay *dpy) +{ + int length; + char path[NAME_MAX]; + struct dirent *dirent; + FILE *file; + DIR *dir; + _EGLDriver *driver = NULL;; + + snprintf(path, sizeof(path), "%s/drm", sysfs); + if (!(dir = opendir(path))) { + printf("EGL - %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]); + file = fopen(path, "r"); + fgets(path, sizeof(path), file); + fclose(file); + + 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; +} + + +static EGLContext +_eglDRICreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list) +{ + _EGLConfig *conf; + driContext *c; + driDisplay *disp = Lookup_driDisplay(dpy); + driContext *share = Lookup_driContext(share_list); + void *sharePriv; + __GLcontextModes mode; + int i; + + conf = _eglLookupConfig(drv, dpy, config); + if (!conf) { + _eglError(EGL_BAD_CONFIG, "eglCreateContext"); + return EGL_NO_CONTEXT; + } + + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + /* no attribs defined for now */ + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglCreateContext"); + return EGL_NO_CONTEXT; + } + } + + c = (driContext *) calloc(1, sizeof(*c)); + if (!c) + return EGL_NO_CONTEXT; + + _eglInitContext(&c->Base); + c->Base.Display = &disp->Base; + c->Base.Config = conf; + c->Base.DrawSurface = EGL_NO_SURFACE; + c->Base.ReadSurface = EGL_NO_SURFACE; + + _eglConfigToContextModesRec(conf, &mode); + + if (share) + sharePriv = share->driContext.private; + else + sharePriv = NULL; + + c->driContext.private = disp->driScreen.createNewContext(disp, &mode, + 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); + assert(c->Base.Handle); + + 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 { +// _mesa_make_current( NULL, NULL, NULL ); + } + return EGL_TRUE; +} + + +static EGLSurface +_eglDRICreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list) +{ + int i; + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + /* no attribs at this time */ + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglCreateWindowSurface"); + return EGL_NO_SURFACE; + } + } + printf("eglCreateWindowSurface()\n"); + /* XXX unfinished */ + + return EGL_NO_SURFACE; +} + + +static EGLSurface +_eglDRICreatePixmapSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list) +{ + _EGLConfig *conf; + EGLint i; + + conf = _eglLookupConfig(drv, dpy, config); + if (!conf) { + _eglError(EGL_BAD_CONFIG, "eglCreatePixmapSurface"); + return EGL_NO_SURFACE; + } + + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + /* no attribs at this time */ + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePixmapSurface"); + return EGL_NO_SURFACE; + } + } + + if (conf->Attrib[EGL_SURFACE_TYPE - FIRST_ATTRIB] == 0) { + _eglError(EGL_BAD_MATCH, "eglCreatePixmapSurface"); + return EGL_NO_SURFACE; + } + + printf("eglCreatePixmapSurface()\n"); + return EGL_NO_SURFACE; +} + + +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 (_eglInitPbufferSurface(&surf->Base, drv, dpy, config, attrib_list) == EGL_NO_SURFACE) { + free(surf); + return EGL_NO_SURFACE; + } + + /* create software-based pbuffer */ + { +// GLcontext *ctx = NULL; /* this _should_ be OK */ + GLvisual vis; + _EGLConfig *conf = _eglLookupConfig(drv, dpy, config); + assert(conf); /* bad config should be caught earlier */ + _eglConfigToContextModesRec(conf, &vis); + +#if 0 + surf->mesa_framebuffer = _mesa_create_framebuffer(&vis); + _mesa_add_soft_renderbuffers(surf->mesa_framebuffer, + GL_TRUE, /* color bufs */ + vis.haveDepthBuffer, + vis.haveStencilBuffer, + vis.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 + } + + 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; + EGLSurface surf; + GLvisual vis; + + surface = (driSurface *) malloc(sizeof(*surface)); + if (!surface) { + return EGL_NO_SURFACE; + } + + /* init base class, error check, etc. */ + surf = _eglInitScreenSurface(&surface->Base, drv, dpy, cfg, attrib_list); + if (surf == EGL_NO_SURFACE) { + free(surface); + return EGL_NO_SURFACE; + } + + /* convert EGLConfig to GLvisual */ + _eglConfigToContextModesRec(config, &vis); + + /* Create a new drawable */ + if (!disp->driScreen.createNewDrawable(disp, &vis, surf, &surface->drawable, + GLX_WINDOW_BIT, empty_attribute_list)) { + free(surface); + _eglRemoveSurface(&surface->Base); + return EGL_NO_SURFACE; + } + return surf; +} + + +/** + * Show the given surface on the named screen. + * If surface is EGL_NO_SURFACE, disable the screen's output. + */ +EGLBoolean +_eglDRIShowSurfaceMESA(_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); + FILE *file; + char buffer[NAME_MAX]; + _EGLMode *mode = _eglLookupMode(dpy, m); + int width, height, temp; + + _eglQuerySurface(drv, dpy, surface, EGL_WIDTH, &width); + _eglQuerySurface(drv, dpy, surface, EGL_HEIGHT, &height); + + if (!_eglShowSurfaceMESA(drv, dpy, screen, surface, m)) + return EGL_FALSE; + + snprintf(buffer, sizeof(buffer), "%s/graphics/%s/blank", sysfs, scrn->fb); + + file = fopen(buffer, "r+"); + if (!file) { +err: + printf("kernel patch?? chown all fb sysfs attrib to allow write - %s\n", buffer); + _eglError(EGL_BAD_SURFACE, "eglShowSurfaceMESA"); + 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) + return EGL_TRUE; + + snprintf(buffer, sizeof(buffer), "%s/graphics/%s/mode", sysfs, scrn->fb); + + file = fopen(buffer, "r+"); + if (!file) + goto err; + fputs(mode->Name, file); + fclose(file); + + snprintf(buffer, sizeof(buffer), "%s/graphics/%s/bits_per_pixel", sysfs, scrn->fb); + + file = fopen(buffer, "r+"); + if (!file) + goto err; + 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); + + snprintf(buffer, sizeof(buffer), "%s/graphics/%s/blank", sysfs, scrn->fb); + + file = fopen(buffer, "r+"); + if (!file) + goto err; + + snprintf(buffer, sizeof(buffer), "%d", VESA_NO_BLANKING); + fputs(buffer, file); + fclose(file); + + snprintf(buffer, sizeof(buffer), "%s/graphics/%s/virtual_size", sysfs, scrn->fb); + file = fopen(buffer, "r+"); + snprintf(buffer, sizeof(buffer), "%d,%d", width, height); + fputs(buffer, file); + rewind(file); + fgets(buffer, sizeof(buffer), file); + sscanf(buffer, "%d,%d", &display->virtualWidth, &display->virtualHeight); + fclose(file); + + 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; + } + display->virtualWidth = temp; + + if ((width != display->virtualWidth) || (height != display->virtualHeight)) + goto err; + + return EGL_TRUE; +} + + +/* 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); + + 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 rc, mtrr; + unsigned int i; + drmMapType type; + drmMapFlags flags; + drm_handle_t handle, offset; + drmSize size; + drmSetVersion sv; + drm_magic_t magic; + + snprintf( path, sizeof( path ), "%s/graphics/fb%d/device/device", sysfs, dpy->minor ); + file = fopen( path, "r" ); + 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 ) { + fprintf( stderr, "[drm] drmOpen failed\n" ); + 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; + + for ( i = 0;; i++ ) { + if ( ( rc = drmGetMap( dpy->drmFD, i, &offset, &size, &type, &flags, &handle, &mtrr ) ) != 0 ) + break; + if ( type == DRM_FRAME_BUFFER ) { + if ( ( rc = drmMap( dpy->drmFD, offset, size, ( drmAddressPtr ) & dpy->pFB ) ) < 0 ) + return EGL_FALSE; + dpy->fbSize = size; + break; + } + } + if ( !dpy->pFB ) + return EGL_FALSE; + + dpy->SAREASize = SAREA_MAX; + + for ( i = 0;; i++ ) { + if ( drmGetMap( dpy->drmFD, i, &offset, &size, &type, &flags, &handle, &mtrr ) != 0 ) + break; + if ( type == DRM_SHM ) { + if ( drmMap( dpy->drmFD, offset, size, ( drmAddressPtr ) ( &dpy->pSAREA ) ) < 0 ) { + fprintf( stderr, "[drm] drmMap failed\n" ); + return 0; + } + break; + } + } + if ( !dpy->pSAREA ) + return 0; + + memset( dpy->pSAREA, 0, dpy->SAREASize ); + fprintf( stderr, "[drm] mapped SAREA 0x%08lx to %p, size %d\n", + offset, dpy->pSAREA, 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)) { + fprintf(stderr, ">>> drmCreateContext failed\n"); + 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)) { + fprintf(stderr, ">>> drmCreateContext failed\n"); + 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)) { + fprintf(stderr, ">>> drmCreateDrawable failed\n"); + 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 ) +{ + driSurface *surf = Lookup_driSurface(drawable); + + *X = 0; + *Y = 0; + *W = surf->Base.Width; + *H = surf->Base.Height; + + *numClipRects = 1; + *pClipRects = malloc(sizeof(**pClipRects)); + **pClipRects = (drm_clip_rect_t){0, 0, surf->Base.Width, surf->Base.Height}; + +#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 ) +{ +#if 0 + if (strcmp( proc_name, "glxEnableExtension" ) == 0) { + return (__DRIfuncPtr) __glXScrEnableExtension; + } +#endif + 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. + */ +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. + */ +__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; +} + + +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. + */ +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. + */ +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, +}; + + +int __glXGetInternalVersion(void) +{ + return 20050725; +} + +static const char createNewScreenName[] = "__driCreateNewScreen_20050727"; + +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 ) { + fprintf( stderr, "Couldn't find %s in CallCreateNewScreen\n", 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, + ( __GLcontextModes ** ) & dpy->driver_modes ); + if (!dpy->driScreen.private) + return EGL_FALSE; + + DRM_UNLOCK( dpy->drmFD, dpy->pSAREA, dpy->serverContext ); + + return EGL_TRUE; +} + + +EGLBoolean +_eglDRICreateScreen( driDisplay *dpy) { + char c, *buffer, path[ NAME_MAX ]; + unsigned int i, x, y, r; + int fd; + FILE *file; + driScreen *s; + _EGLScreen *scrn; + + /* Create a screen */ + if ( !( s = ( driScreen * ) calloc( 1, sizeof( *s ) ) ) ) + return EGL_FALSE; + + snprintf( s->fb, NAME_MAX, "fb%d", dpy->minor ); + scrn = &s->Base; + _eglInitScreen( scrn ); + _eglAddScreen( &dpy->Base, scrn ); + + snprintf( path, sizeof( path ), "%s/graphics/%s/modes", sysfs, s->fb ); + file = fopen( path, "r" ); + while ( fgets( path, sizeof( path ), file ) ) { + path[ strlen( path ) - 1 ] = '\0'; /* strip off \n from sysfs */ + sscanf( path, "%c:%ux%u-%u", &c, &x, &y, &r ); + _eglAddMode( scrn, x, y, r * 1000, path ); + } + fclose( file ); + + /* cmap attribute uses 256 lines of 16 bytes */ + if ( !( buffer = malloc( 256 * 16 ) ) ) + return EGL_FALSE; + + /* cmap attribute uses 256 lines of 16 bytes */ + for ( i = 0; i < 256; i++ ) + sprintf( &buffer[ i * 16 ], "%02x%c%4x%4x%4x\n", + i, ' ', 256 * i, 256 * i, 256 * i ); + + snprintf( path, sizeof( path ), "%s/graphics/%s/color_map", sysfs, s->fb ); + if ( !( fd = open( path, O_RDWR ) ) ) + return EGL_FALSE; + write( fd, buffer, 256 * 16 ); + close( fd ); + + free( buffer ); + + return EGL_TRUE; +} + +EGLBoolean +_eglDRIInitialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *major, EGLint *minor) +{ + _EGLDisplay *disp = _eglLookupDisplay(dpy); + driDisplay *display; + + /* Switch display structure to one with our private fields */ + 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); + free(display); + free(drv); + return EGL_TRUE; +} + + +void +_eglDRIInitDriverFallbacks(_EGLDriver *drv) +{ + _eglInitDriverFallbacks(drv); + + drv->Initialize = _eglDRIInitialize; + drv->Terminate = _eglDRITerminate; + drv->CreateContext = _eglDRICreateContext; + drv->MakeCurrent = _eglDRIMakeCurrent; + drv->CreateWindowSurface = _eglDRICreateWindowSurface; + drv->CreatePixmapSurface = _eglDRICreatePixmapSurface; + drv->CreatePbufferSurface = _eglDRICreatePbufferSurface; + drv->DestroySurface = _eglDRIDestroySurface; + drv->DestroyContext = _eglDRIDestroyContext; + drv->CreateScreenSurfaceMESA = _eglDRICreateScreenSurfaceMESA; + drv->ShowSurfaceMESA = _eglDRIShowSurfaceMESA; + drv->SwapBuffers = _eglDRISwapBuffers; + + /* enable supported extensions */ + drv->MESA_screen_surface = EGL_TRUE; + drv->MESA_copy_context = EGL_TRUE; + +} |