--- /dev/null
+/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+/**
+ * \file dri_sw.c
+ *
+ * DRISW utility functions, i.e. dri_util.c stripped from drm-specific bits.
+ */
+
+#include "dri_sw.h"
+#include "utils.h"
+
+
+/**
+ * Screen functions
+ */
+
+static void
+setupLoaderExtensions(__DRIscreen *psp,
+ const __DRIextension **extensions)
+{
+ int i;
+
+ for (i = 0; extensions[i]; i++) {
+ if (strcmp(extensions[i]->name, __DRI_SWRAST_LOADER) == 0)
+ psp->swrast_loader = (__DRIswrastLoaderExtension *) extensions[i];
+ }
+}
+
+static __DRIscreen *
+driCreateNewScreen(int scrn, const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs, void *data)
+{
+ static const __DRIextension *emptyExtensionList[] = { NULL };
+ __DRIscreen *psp;
+
+ (void) data;
+
+ psp = CALLOC_STRUCT(__DRIscreenRec);
+ if (!psp)
+ return NULL;
+
+ setupLoaderExtensions(psp, extensions);
+
+ psp->extensions = emptyExtensionList;
+ psp->myNum = scrn;
+
+ *driver_configs = driDriverAPI.InitScreen(psp);
+
+ if (*driver_configs == NULL) {
+ FREE(psp);
+ return NULL;
+ }
+
+ return psp;
+}
+
+static void driDestroyScreen(__DRIscreen *psp)
+{
+ if (psp) {
+ driDriverAPI.DestroyScreen(psp);
+
+ FREE(psp);
+ }
+}
+
+static const __DRIextension **driGetExtensions(__DRIscreen *psp)
+{
+ return psp->extensions;
+}
+
+
+/**
+ * Context functions
+ */
+
+static __DRIcontext *
+driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,
+ __DRIcontext *shared, void *data)
+{
+ __DRIcontext *pcp;
+ void * const shareCtx = (shared != NULL) ? &shared->Base : NULL;
+
+ pcp = CALLOC_STRUCT(__DRIcontextRec);
+ if (!pcp)
+ return NULL;
+
+ pcp->loaderPrivate = data;
+
+ pcp->driScreenPriv = psp;
+ pcp->driDrawablePriv = NULL;
+ pcp->driReadablePriv = NULL;
+
+ if (!driDriverAPI.CreateContext(&config->modes, pcp, shareCtx)) {
+ FREE(pcp);
+ return NULL;
+ }
+
+ return pcp;
+}
+
+static void
+driDestroyContext(__DRIcontext *pcp)
+{
+ if (pcp) {
+ driDriverAPI.DestroyContext(pcp);
+ FREE(pcp);
+ }
+}
+
+static int
+driCopyContext(__DRIcontext *dst, __DRIcontext *src, unsigned long mask)
+{
+ return GL_FALSE;
+}
+
+static void dri_get_drawable(__DRIdrawable *pdp);
+static void dri_put_drawable(__DRIdrawable *pdp);
+
+static int driBindContext(__DRIcontext *pcp,
+ __DRIdrawable *pdp,
+ __DRIdrawable *prp)
+{
+ /* Bind the drawable to the context */
+ if (pcp) {
+ pcp->driDrawablePriv = pdp;
+ pcp->driReadablePriv = prp;
+ if (pdp) {
+ dri_get_drawable(pdp);
+ }
+ if ( prp && pdp != prp ) {
+ dri_get_drawable(prp);
+ }
+ }
+
+ return driDriverAPI.MakeCurrent(pcp, pdp, prp);
+}
+
+static int driUnbindContext(__DRIcontext *pcp)
+{
+ __DRIdrawable *pdp;
+ __DRIdrawable *prp;
+
+ if (pcp == NULL)
+ return GL_FALSE;
+
+ pdp = pcp->driDrawablePriv;
+ prp = pcp->driReadablePriv;
+
+ /* already unbound */
+ if (!pdp && !prp)
+ return GL_TRUE;
+
+ driDriverAPI.UnbindContext(pcp);
+
+ dri_put_drawable(pdp);
+
+ if (prp != pdp) {
+ dri_put_drawable(prp);
+ }
+
+ pcp->driDrawablePriv = NULL;
+ pcp->driReadablePriv = NULL;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Drawable functions
+ */
+
+static void dri_get_drawable(__DRIdrawable *pdp)
+{
+ pdp->refcount++;
+}
+
+static void dri_put_drawable(__DRIdrawable *pdp)
+{
+ if (pdp) {
+ pdp->refcount--;
+ if (pdp->refcount)
+ return;
+
+ driDriverAPI.DestroyBuffer(pdp);
+
+ FREE(pdp);
+ }
+}
+
+static __DRIdrawable *
+driCreateNewDrawable(__DRIscreen *psp,
+ const __DRIconfig *config, void *data)
+{
+ __DRIdrawable *pdp;
+
+ pdp = CALLOC_STRUCT(__DRIdrawableRec);
+ if (!pdp)
+ return NULL;
+
+ pdp->loaderPrivate = data;
+
+ pdp->driScreenPriv = psp;
+
+ dri_get_drawable(pdp);
+
+ if (!driDriverAPI.CreateBuffer(psp, pdp, &config->modes, GL_FALSE)) {
+ FREE(pdp);
+ return NULL;
+ }
+
+ return pdp;
+}
+
+static void
+driDestroyDrawable(__DRIdrawable *pdp)
+{
+ dri_put_drawable(pdp);
+}
+
+static void driSwapBuffers(__DRIdrawable *pdp)
+{
+ driDriverAPI.SwapBuffers(pdp);
+}
+
+const __DRIcoreExtension driCoreExtension = {
+ { __DRI_CORE, __DRI_CORE_VERSION },
+ NULL, /* driCreateNewScreen */
+ driDestroyScreen,
+ driGetExtensions,
+ driGetConfigAttrib,
+ driIndexConfigAttrib,
+ NULL, /* driCreateNewDrawable */
+ driDestroyDrawable,
+ driSwapBuffers,
+ driCreateNewContext,
+ driCopyContext,
+ driDestroyContext,
+ driBindContext,
+ driUnbindContext
+};
+
+const __DRIswrastExtension driSWRastExtension = {
+ { __DRI_SWRAST, __DRI_SWRAST_VERSION },
+ driCreateNewScreen,
+ driCreateNewDrawable
+};
--- /dev/null
+/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+
+#ifndef _DRI_SW_H
+#define _DRI_SW_H
+
+#include <GL/gl.h>
+#include <GL/internal/dri_interface.h>
+#include "main/mtypes.h"
+
+
+/**
+ * Extensions
+ */
+extern const __DRIcoreExtension driCoreExtension;
+extern const __DRIswrastExtension driSWRastExtension;
+
+
+/**
+ * Data types
+ */
+struct __DRIscreenRec {
+ int myNum;
+
+ int fd;
+
+ void *private;
+
+ const __DRIextension **extensions;
+
+ const __DRIswrastLoaderExtension *swrast_loader;
+};
+
+struct __DRIcontextRec {
+
+ GLcontext Base;
+
+ void *loaderPrivate;
+
+ __DRIdrawable *driDrawablePriv;
+
+ __DRIdrawable *driReadablePriv;
+
+ __DRIscreen *driScreenPriv;
+};
+
+struct __DRIdrawableRec {
+
+ GLframebuffer Base;
+
+ void *loaderPrivate;
+
+ __DRIscreen *driScreenPriv;
+
+ int refcount;
+
+ /* scratch row for optimized front-buffer rendering */
+ char *row;
+};
+
+
+/**
+ * Driver callback functions
+ */
+struct __DriverAPIRec {
+ const __DRIconfig **(*InitScreen) (__DRIscreen * priv);
+
+ void (*DestroyScreen)(__DRIscreen *driScrnPriv);
+
+ GLboolean (*CreateContext)(const __GLcontextModes *glVis,
+ __DRIcontext *driContextPriv,
+ void *sharedContextPrivate);
+
+ void (*DestroyContext)(__DRIcontext *driContextPriv);
+
+ GLboolean (*CreateBuffer)(__DRIscreen *driScrnPriv,
+ __DRIdrawable *driDrawPriv,
+ const __GLcontextModes *glVis,
+ GLboolean pixmapBuffer);
+
+ void (*DestroyBuffer)(__DRIdrawable *driDrawPriv);
+
+ void (*SwapBuffers)(__DRIdrawable *driDrawPriv);
+
+ GLboolean (*MakeCurrent)(__DRIcontext *driContextPriv,
+ __DRIdrawable *driDrawPriv,
+ __DRIdrawable *driReadPriv);
+
+ GLboolean (*UnbindContext)(__DRIcontext *driContextPriv);
+};
+
+extern const struct __DriverAPIRec driDriverAPI;
+
+#endif /* _DRI_SW_H */
projects / mesa.git / commitdiff