1 files changed, 255 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/glx/dri/dri_screen.c b/src/gallium/state_trackers/glx/dri/dri_screen.c
new file mode 100644
index 00000000000..f7119b949a3
--- /dev/null
+++ b/src/gallium/state_trackers/glx/dri/dri_screen.c
@@ -0,0 +1,255 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#include "utils.h"
+#include "vblank.h"
+#include "xmlpool.h"
+
+#include "dri_context.h"
+#include "dri_screen.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_inlines.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_cb_fbo.h"
+
+
+PUBLIC const char __driConfigOptions[] =
+   DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
+    DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
+    DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
+   DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
+//   DRI_CONF_FORCE_S3TC_ENABLE(false)
+    DRI_CONF_ALLOW_LARGE_TEXTURES(1)
+   DRI_CONF_SECTION_END DRI_CONF_END;
+
+const uint __driNConfigOptions = 3;
+
+static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
+
+extern const struct dri_extension card_extensions[];
+
+
+
+static const __DRIextension *driScreenExtensions[] = {
+    &driReadDrawableExtension,
+    &driCopySubBufferExtension.base,
+    &driSwapControlExtension.base,
+    &driFrameTrackingExtension.base,
+    &driMediaStreamCounterExtension.base,
+    NULL
+};
+
+
+
+
+static const char *
+dri_get_name( struct pipe_winsys *winsys )
+{
+   return "dri";
+}
+
+
+
+static void
+dri_destroy_screen(__DRIscreenPrivate * sPriv)
+{
+   struct dri_screen *screen = dri_screen(sPriv);
+
+   screen->pipe_screen->destroy( screen->pipe_screen );
+   screen->pipe_winsys->destroy( screen->pipe_winsys );
+   FREE(screen);
+   sPriv->private = NULL;
+}
+
+
+/**
+ * Get information about previous buffer swaps.
+ */
+static int
+dri_get_swap_info(__DRIdrawablePrivate * dPriv, 
+                  __DRIswapInfo * sInfo)
+{
+   if (dPriv == NULL || 
+       dPriv->driverPrivate == NULL ||
+       sInfo == NULL) 
+      return -1;
+   else
+      return 0;
+}
+
+static const __DRIconfig **
+dri_fill_in_modes(__DRIscreenPrivate *psp,
+                  unsigned pixel_bits )
+{
+   __DRIconfig **configs;
+   __GLcontextModes *m;
+   unsigned num_modes;
+   uint8_t depth_bits_array[3];
+   uint8_t stencil_bits_array[3];
+   uint8_t msaa_samples_array[1];
+   unsigned depth_buffer_factor;
+   unsigned back_buffer_factor;
+   GLenum fb_format;
+   GLenum fb_type;
+   int i;
+
+   static const GLenum back_buffer_modes[] = {
+      GLX_NONE, GLX_SWAP_UNDEFINED_OML
+   };
+
+   depth_bits_array[0] = 0;
+   depth_bits_array[1] = depth_bits;
+   depth_bits_array[2] = depth_bits;
+
+   stencil_bits_array[0] = 0;   /* no depth or stencil */
+   stencil_bits_array[1] = 0;   /* z24x8 */
+   stencil_bits_array[2] = 8;   /* z24s8 */
+
+   msaa_samples_array[0] = 0;
+
+   depth_buffer_factor = 3;
+   back_buffer_factor = 1;
+
+   num_modes = depth_buffer_factor * back_buffer_factor * 4;
+
+   if (pixel_bits == 16) {
+      fb_format = GL_RGB;
+      fb_type = GL_UNSIGNED_SHORT_5_6_5;
+   }
+   else {
+      fb_format = GL_BGRA;
+      fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+   }
+
+   configs = driCreateConfigs(fb_format, fb_type,
+			      depth_bits_array, 
+                              stencil_bits_array, depth_buffer_factor, 
+                              back_buffer_modes, back_buffer_factor,
+                              msaa_samples_array, 1);
+   if (configs == NULL) {
+      debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
+      return NULL;
+   }
+
+   return configs;
+}
+
+
+
+/* This is the driver specific part of the createNewScreen entry point.
+ * 
+ * Returns the __GLcontextModes supported by this driver.
+ */
+static const __DRIconfig **dri_init_screen(__DRIscreenPrivate *sPriv)
+{
+   static const __DRIversion ddx_expected = { 1, 6, 0 }; /* hw query */
+   static const __DRIversion dri_expected = { 4, 0, 0 };
+   static const __DRIversion drm_expected = { 1, 5, 0 }; /* hw query */
+   struct dri_screen *screen;
+
+   if (!driCheckDriDdxDrmVersions2("dri",
+                                   &sPriv->dri_version, &dri_expected,
+                                   &sPriv->ddx_version, &ddx_expected,
+                                   &sPriv->drm_version, &drm_expected)) {
+      return NULL;
+   }
+
+   /* Set up dispatch table to cope with all known extensions:
+    */
+   driInitExtensions( NULL, card_extensions, GL_FALSE );
+
+
+   screen = CALLOC_STRUCT(dri_screen);
+   if (!screen)
+      goto fail;
+
+   screen->sPriv = sPriv;
+   sPriv->private = (void *) screen;
+
+
+   /* Search the registered winsys' for one that likes this sPriv.
+    * This is required in situations where multiple devices speak to
+    * the same DDX and are built into the same binary.  
+    *
+    * Note that cases like Intel i915 vs i965 doesn't fall into this
+    * category because they are built into separate binaries.
+    *
+    * Nonetheless, it's healthy to keep that level of detail out of
+    * this state_tracker.
+    */
+   for (i = 0; 
+        i < dri1_winsys_count && 
+           screen->st_winsys == NULL; 
+        i++) 
+   {
+      screen->dri_winsys = 
+         dri_winsys[i]->check_dri_privates( sPriv->pDevPriv,
+                                            sPriv->pSAREA
+                                            /* versions, etc?? */));
+   }
+                                             
+
+   driParseOptionInfo(&screen->optionCache,
+                      __driConfigOptions, 
+                      __driNConfigOptions);
+
+
+   /* Plug our info back into the __DRIscreenPrivate:
+    */
+   sPriv->private = (void *) screen;
+   sPriv->extensions = driScreenExtensions;
+
+   return dri_fill_in_modes(sPriv, 
+                            dri_priv->cpp * 8,
+                            24,
+                            8,
+                            1);
+fail:
+   return NULL;
+}
+
+
+
+const struct __DriverAPIRec driDriverAPI = {
+   .InitScreen		 = dri_init_screen,
+   .DestroyScreen	 = dri_destroy_screen,
+   .CreateContext	 = dri_create_context,
+   .DestroyContext	 = dri_destroy_context,
+   .CreateBuffer	 = dri_create_buffer,
+   .DestroyBuffer	 = dri_destroy_buffer,
+   .SwapBuffers		 = dri_swap_buffers,
+   .MakeCurrent		 = dri_make_current,
+   .UnbindContext	 = dri_unbind_context,
+   .GetSwapInfo		 = dri_get_swap_info,
+   .GetDrawableMSC	 = driDrawableGetMSC32,
+   .WaitForMSC		 = driWaitForMSC32,
+   .CopySubBuffer	 = dri_copy_sub_buffer,
+
+   //.InitScreen2		 = dri_init_screen2,
+};