softpipe: fix texture view crashes

[mesa.git] / src / gallium / drivers / softpipe / sp_setup.h

diff --git a/src/gallium/drivers/softpipe/sp_setup.h b/src/gallium/drivers/softpipe/sp_setup.h
index 9c8844d2e8e146c033bf624ccd2e6b151a77436c..a54dc5dad0c242908b0b2633919f155c49fad7c8 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_setup.h
+++ b/src/gallium/drivers/softpipe/sp_setup.h
@@ -1,6 +1,6 @@
 /**************************************************************************
  *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * 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
+ * IN NO EVENT SHALL VMWARE 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.
@@ -30,11 +30,30 @@
 struct setup_context;
 struct softpipe_context;
 
+/**
+ * Attribute interpolation mode
+ */
+enum sp_interp_mode {
+   SP_INTERP_POS,       /**< special case for frag position */
+   SP_INTERP_CONSTANT,
+   SP_INTERP_LINEAR,
+   SP_INTERP_PERSPECTIVE
+};
+
+
+struct sp_setup_info {
+   unsigned valid;
+   struct {
+      unsigned interp:8;      /**< SP_INTERP_X */
+      int src_index:8;
+   } attrib[PIPE_MAX_SHADER_OUTPUTS];
+};
+
 void 
-sp_setup_tri( struct setup_context *setup,
-          const float (*v0)[4],
-          const float (*v1)[4],
-          const float (*v2)[4] );
+sp_setup_tri(struct setup_context *setup,
+             const float (*v0)[4],
+             const float (*v1)[4],
+             const float (*v2)[4]);
 
 void
 sp_setup_line(struct setup_context *setup,
@@ -45,6 +64,11 @@ void
 sp_setup_point( struct setup_context *setup,
              const float (*v0)[4] );
 
+static inline unsigned
+sp_clamp_viewport_idx(int idx)
+{
+   return (PIPE_MAX_VIEWPORTS > idx && idx >= 0) ? idx : 0;
+}
 
 struct setup_context *sp_setup_create_context( struct softpipe_context *softpipe );
 void sp_setup_prepare( struct setup_context *setup );