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Diffstat (limited to 'src/glx/drisw_glx.c')
| -rw-r--r-- | src/glx/drisw_glx.c | 456 |
1 files changed, 456 insertions, 0 deletions
diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c new file mode 100644 index 00000000000..eed9a8c4723 --- /dev/null +++ b/src/glx/drisw_glx.c @@ -0,0 +1,456 @@ +/* + * Copyright 2008 George Sapountzis + * + * 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. + */ + +#ifdef GLX_DIRECT_RENDERING + +#include <X11/Xlib.h> +#include "glxclient.h" +#include <dlfcn.h> +#include "dri_common.h" + +typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate; +typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate; +typedef struct __GLXDRIdrawablePrivateRec __GLXDRIdrawablePrivate; + +struct __GLXDRIdisplayPrivateRec +{ + __GLXDRIdisplay base; +}; + +struct __GLXDRIcontextPrivateRec +{ + __GLXDRIcontext base; + __DRIcontext *driContext; + __GLXscreenConfigs *psc; +}; + +struct __GLXDRIdrawablePrivateRec +{ + __GLXDRIdrawable base; + + GC gc; + GC swapgc; + + XVisualInfo *visinfo; + XImage *ximage; + int bpp; +}; + +/** + * swrast loader functions + */ + +static Bool +XCreateDrawable(__GLXDRIdrawablePrivate * pdp, + Display * dpy, XID drawable, int visualid) +{ + XGCValues gcvalues; + long visMask; + XVisualInfo visTemp; + int num_visuals; + + /* create GC's */ + pdp->gc = XCreateGC(dpy, drawable, 0, NULL); + pdp->swapgc = XCreateGC(dpy, drawable, 0, NULL); + + gcvalues.function = GXcopy; + gcvalues.graphics_exposures = False; + XChangeGC(dpy, pdp->gc, GCFunction, &gcvalues); + XChangeGC(dpy, pdp->swapgc, GCFunction, &gcvalues); + XChangeGC(dpy, pdp->swapgc, GCGraphicsExposures, &gcvalues); + + /* create XImage */ + visTemp.screen = DefaultScreen(dpy); + visTemp.visualid = visualid; + visMask = (VisualScreenMask | VisualIDMask); + pdp->visinfo = XGetVisualInfo(dpy, visMask, &visTemp, &num_visuals); + + pdp->ximage = XCreateImage(dpy, pdp->visinfo->visual, pdp->visinfo->depth, ZPixmap, 0, /* format, offset */ + NULL, /* data */ + 0, 0, /* size */ + 32, /* bitmap_pad */ + 0); /* bytes_per_line */ + + /* get the true number of bits per pixel */ + pdp->bpp = pdp->ximage->bits_per_pixel; + + return True; +} + +static void +XDestroyDrawable(__GLXDRIdrawablePrivate * pdp, Display * dpy, XID drawable) +{ + XDestroyImage(pdp->ximage); + XFree(pdp->visinfo); + + XFreeGC(dpy, pdp->gc); + XFreeGC(dpy, pdp->swapgc); +} + +static void +swrastGetDrawableInfo(__DRIdrawable * draw, + int *x, int *y, int *w, int *h, void *loaderPrivate) +{ + __GLXDRIdrawablePrivate *pdp = loaderPrivate; + __GLXDRIdrawable *pdraw = &(pdp->base); + Display *dpy = pdraw->psc->dpy; + Drawable drawable; + + Window root; + Status stat; + unsigned int bw, depth; + + drawable = pdraw->xDrawable; + + stat = XGetGeometry(dpy, drawable, &root, + x, y, (unsigned int *) w, (unsigned int *) h, + &bw, &depth); +} + +static inline int +bytes_per_line(int w, int bpp, unsigned mul) +{ + unsigned mask = mul - 1; + + return ((w * bpp + mask) & ~mask) / 8; +} + +static void +swrastPutImage(__DRIdrawable * draw, int op, + int x, int y, int w, int h, char *data, void *loaderPrivate) +{ + __GLXDRIdrawablePrivate *pdp = loaderPrivate; + __GLXDRIdrawable *pdraw = &(pdp->base); + Display *dpy = pdraw->psc->dpy; + Drawable drawable; + XImage *ximage; + GC gc; + + switch (op) { + case __DRI_SWRAST_IMAGE_OP_DRAW: + gc = pdp->gc; + break; + case __DRI_SWRAST_IMAGE_OP_SWAP: + gc = pdp->swapgc; + break; + default: + return; + } + + drawable = pdraw->xDrawable; + + ximage = pdp->ximage; + ximage->data = data; + ximage->width = w; + ximage->height = h; + ximage->bytes_per_line = bytes_per_line(w, pdp->bpp, 32); + + XPutImage(dpy, drawable, gc, ximage, 0, 0, x, y, w, h); + + ximage->data = NULL; +} + +static void +swrastGetImage(__DRIdrawable * draw, + int x, int y, int w, int h, char *data, void *loaderPrivate) +{ + __GLXDRIdrawablePrivate *pdp = loaderPrivate; + __GLXDRIdrawable *pdraw = &(pdp->base); + Display *dpy = pdraw->psc->dpy; + Drawable drawable; + XImage *ximage; + + drawable = pdraw->xDrawable; + + ximage = pdp->ximage; + ximage->data = data; + ximage->width = w; + ximage->height = h; + ximage->bytes_per_line = bytes_per_line(w, pdp->bpp, 32); + + XGetSubImage(dpy, drawable, x, y, w, h, ~0L, ZPixmap, ximage, 0, 0); + + ximage->data = NULL; +} + +static const __DRIswrastLoaderExtension swrastLoaderExtension = { + {__DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION}, + swrastGetDrawableInfo, + swrastPutImage, + swrastGetImage +}; + +static const __DRIextension *loader_extensions[] = { + &systemTimeExtension.base, + &swrastLoaderExtension.base, + NULL +}; + +/** + * GLXDRI functions + */ + +static void +driDestroyContext(__GLXDRIcontext * context, + __GLXscreenConfigs * psc, Display * dpy) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + (*core->destroyContext) (pcp->driContext); + + Xfree(pcp); +} + +static Bool +driBindContext(__GLXDRIcontext * context, + __GLXDRIdrawable * draw, __GLXDRIdrawable * read) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + return (*core->bindContext) (pcp->driContext, + draw->driDrawable, read->driDrawable); +} + +static void +driUnbindContext(__GLXDRIcontext * context) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + (*core->unbindContext) (pcp->driContext); +} + +static __GLXDRIcontext * +driCreateContext(__GLXscreenConfigs * psc, + const __GLcontextModes * mode, + GLXContext gc, GLXContext shareList, int renderType) +{ + __GLXDRIcontextPrivate *pcp, *pcp_shared; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode; + const __DRIcoreExtension *core; + __DRIcontext *shared = NULL; + + if (!psc || !psc->driScreen) + return NULL; + + core = psc->core; + + if (shareList) { + pcp_shared = (__GLXDRIcontextPrivate *) shareList->driContext; + shared = pcp_shared->driContext; + } + + pcp = Xmalloc(sizeof *pcp); + if (pcp == NULL) + return NULL; + + pcp->psc = psc; + pcp->driContext = + (*core->createNewContext) (psc->__driScreen, + config->driConfig, shared, pcp); + if (pcp->driContext == NULL) { + Xfree(pcp); + return NULL; + } + + pcp->base.destroyContext = driDestroyContext; + pcp->base.bindContext = driBindContext; + pcp->base.unbindContext = driUnbindContext; + + return &pcp->base; +} + +static void +driDestroyDrawable(__GLXDRIdrawable * pdraw) +{ + __GLXDRIdrawablePrivate *pdp = (__GLXDRIdrawablePrivate *) pdraw; + const __DRIcoreExtension *core = pdraw->psc->core; + + (*core->destroyDrawable) (pdraw->driDrawable); + + XDestroyDrawable(pdp, pdraw->psc->dpy, pdraw->drawable); + Xfree(pdp); +} + +static __GLXDRIdrawable * +driCreateDrawable(__GLXscreenConfigs * psc, + XID xDrawable, + GLXDrawable drawable, const __GLcontextModes * modes) +{ + __GLXDRIdrawable *pdraw; + __GLXDRIdrawablePrivate *pdp; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; + const __DRIswrastExtension *swrast = psc->swrast; + + /* Old dri can't handle GLX 1.3+ drawable constructors. */ + if (xDrawable != drawable) + return NULL; + + pdp = Xmalloc(sizeof(*pdp)); + if (!pdp) + return NULL; + + pdraw = &(pdp->base); + pdraw->xDrawable = xDrawable; + pdraw->drawable = drawable; + pdraw->psc = psc; + + XCreateDrawable(pdp, psc->dpy, xDrawable, modes->visualID); + + /* Create a new drawable */ + pdraw->driDrawable = + (*swrast->createNewDrawable) (psc->__driScreen, config->driConfig, pdp); + + if (!pdraw->driDrawable) { + XDestroyDrawable(pdp, psc->dpy, xDrawable); + Xfree(pdp); + return NULL; + } + + pdraw->destroyDrawable = driDestroyDrawable; + + return pdraw; +} + +static void +driSwapBuffers(__GLXDRIdrawable * pdraw) +{ + (*pdraw->psc->core->swapBuffers) (pdraw->driDrawable); +} + +static void +driDestroyScreen(__GLXscreenConfigs * psc) +{ + /* Free the direct rendering per screen data */ + (*psc->core->destroyScreen) (psc->__driScreen); + psc->__driScreen = NULL; + if (psc->driver) + dlclose(psc->driver); +} + +static __GLXDRIscreen * +driCreateScreen(__GLXscreenConfigs * psc, int screen, + __GLXdisplayPrivate * priv) +{ + __GLXDRIscreen *psp; + const __DRIconfig **driver_configs; + const __DRIextension **extensions; + const char *driverName = "swrast"; + int i; + + psp = Xcalloc(1, sizeof *psp); + if (psp == NULL) + return NULL; + + /* Initialize per screen dynamic client GLX extensions */ + psc->ext_list_first_time = GL_TRUE; + + psc->driver = driOpenDriver(driverName); + if (psc->driver == NULL) + goto handle_error; + + extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS); + if (extensions == NULL) { + ErrorMessageF("driver exports no extensions (%s)\n", dlerror()); + goto handle_error; + } + + for (i = 0; extensions[i]; i++) { + if (strcmp(extensions[i]->name, __DRI_CORE) == 0) + psc->core = (__DRIcoreExtension *) extensions[i]; + if (strcmp(extensions[i]->name, __DRI_SWRAST) == 0) + psc->swrast = (__DRIswrastExtension *) extensions[i]; + } + + if (psc->core == NULL || psc->swrast == NULL) { + ErrorMessageF("core dri extension not found\n"); + goto handle_error; + } + + psc->__driScreen = + psc->swrast->createNewScreen(screen, + loader_extensions, &driver_configs, psc); + if (psc->__driScreen == NULL) { + ErrorMessageF("failed to create dri screen\n"); + goto handle_error; + } + + driBindExtensions(psc); + driBindCommonExtensions(psc); + + psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs); + psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs); + + psc->driver_configs = driver_configs; + + psp->destroyScreen = driDestroyScreen; + psp->createContext = driCreateContext; + psp->createDrawable = driCreateDrawable; + psp->swapBuffers = driSwapBuffers; + psp->waitX = NULL; + psp->waitGL = NULL; + + return psp; + + handle_error: + Xfree(psp); + + if (psc->driver) + dlclose(psc->driver); + + ErrorMessageF("reverting to indirect rendering\n"); + + return NULL; +} + +/* Called from __glXFreeDisplayPrivate. + */ +static void +driDestroyDisplay(__GLXDRIdisplay * dpy) +{ + Xfree(dpy); +} + +/* + * Allocate, initialize and return a __DRIdisplayPrivate object. + * This is called from __glXInitialize() when we are given a new + * display pointer. + */ +_X_HIDDEN __GLXDRIdisplay * +driswCreateDisplay(Display * dpy) +{ + __GLXDRIdisplayPrivate *pdpyp; + + pdpyp = Xmalloc(sizeof *pdpyp); + if (pdpyp == NULL) + return NULL; + + pdpyp->base.destroyDisplay = driDestroyDisplay; + pdpyp->base.createScreen = driCreateScreen; + + return &pdpyp->base; +} + +#endif /* GLX_DIRECT_RENDERING */ |