gallium: Remove the sct module.

Not used, and its functionality is now addressed by
pipe_context::is_texture/buffer_referenced callbacks.

5 files changed, 0 insertions, 655 deletions

diff --git a/src/gallium/auxiliary/sct/Makefile b/src/gallium/auxiliary/sct/Makefile
deleted file mode 100644
index a7d111b6891..00000000000
--- a/src/gallium/auxiliary/sct/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-TOP = ../../../..
-include $(TOP)/configs/current
-
-LIBNAME = sct
-
-C_SOURCES = \
-	sct.c
-
-include ../../Makefile.template
diff --git a/src/gallium/auxiliary/sct/SConscript b/src/gallium/auxiliary/sct/SConscript
deleted file mode 100644
index 76927d973f8..00000000000
--- a/src/gallium/auxiliary/sct/SConscript
+++ /dev/null
@@ -1,9 +0,0 @@
-Import('*')
-
-sct = env.ConvenienceLibrary(
-	target = 'sct',
-	source = [
-		'sct.c'
-	])
-
-auxiliaries.insert(0, sct)
diff --git a/src/gallium/auxiliary/sct/sct.c b/src/gallium/auxiliary/sct/sct.c
deleted file mode 100644
index 722d2b7e66e..00000000000
--- a/src/gallium/auxiliary/sct/sct.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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 "util/u_memory.h"
-#include "pipe/p_state.h"
-#include "sct.h"
-
-
-struct texture_list
-{
-   struct pipe_texture *texture;
-   struct texture_list *next;
-};
-
-
-
-#define MAX_SURFACES  ((PIPE_MAX_COLOR_BUFS) + 1)
-
-struct sct_context
-{
-   const struct pipe_context *context;
-
-   /** surfaces the context is drawing into */
-   struct pipe_surface *surfaces[MAX_SURFACES];
-
-   /** currently bound textures */
-   struct pipe_texture *textures[PIPE_MAX_SAMPLERS];
-
-   /** previously bound textures, used but not flushed */
-   struct texture_list *textures_used;
-
-   boolean needs_flush;
-
-   struct sct_context *next;
-};
-
-
-
-struct sct_surface
-{
-   const struct pipe_surface *surface;
-
-   /** list of contexts drawing to this surface */
-   struct sct_context_list *contexts;
-
-   struct sct_surface *next;
-};
-
-
-
-/**
- * Find the surface_info for the given pipe_surface
- */
-static struct sct_surface *
-find_surface_info(struct surface_context_tracker *sct,
-                  const struct pipe_surface *surface)
-{
-   struct sct_surface *si;
-   for (si = sct->surfaces; si; si = si->next)
-      if (si->surface == surface)
-         return si;
-   return NULL;
-}
-
-
-/**
- * As above, but create new surface_info if surface is new.
- */
-static struct sct_surface *
-find_create_surface_info(struct surface_context_tracker *sct,
-                         const struct pipe_surface *surface)
-{
-   struct sct_surface *si = find_surface_info(sct, surface);
-   if (si)
-      return si;
-
-   /* alloc new */
-   si = CALLOC_STRUCT(sct_surface);
-   if (si) {
-      si->surface = surface;
-
-      /* insert at head */
-      si->next = sct->surfaces;
-      sct->surfaces = si;
-   }
-
-   return si;
-}
-
-
-/**
- * Find a context_info for the given context.
- */
-static struct sct_context *
-find_context_info(struct surface_context_tracker *sct,
-                  const struct pipe_context *context)
-{
-   struct sct_context *ci;
-   for (ci = sct->contexts; ci; ci = ci->next)
-      if (ci->context == context)
-         return ci;
-   return NULL;
-}
-
-
-/**
- * As above, but create new context_info if context is new.
- */
-static struct sct_context *
-find_create_context_info(struct surface_context_tracker *sct,
-                         const struct pipe_context *context)
-{
-   struct sct_context *ci = find_context_info(sct, context);
-   if (ci)
-      return ci;
-
-   /* alloc new */
-   ci = CALLOC_STRUCT(sct_context);
-   if (ci) {
-      ci->context = context;
-
-      /* insert at head */
-      ci->next = sct->contexts;
-      sct->contexts = ci;
-   }
-
-   return ci;
-}
-
-
-/**
- * Is the context already bound to the surface?
- */
-static boolean
-find_surface_context(const struct sct_surface *si,
-                     const struct pipe_context *context)
-{
-   const struct sct_context_list *cl;
-   for (cl = si->contexts; cl; cl = cl->next) {
-      if (cl->context == context) {
-         return TRUE;
-      }
-   }
-   return FALSE;
-}
-
-
-/**
- * Add a context to the list of contexts associated with a surface.
- */
-static void
-add_context_to_surface(struct sct_surface *si,
-                       const struct pipe_context *context)
-{
-   struct sct_context_list *cl = CALLOC_STRUCT(sct_context_list);
-   if (cl) {
-      cl->context = context;
-      /* insert at head of list of contexts */
-      cl->next = si->contexts;
-      si->contexts = cl;
-   }
-}
-
-
-/**
- * Remove a context from the list of contexts associated with a surface.
- */
-static void
-remove_context_from_surface(struct sct_surface *si,
-                            const struct pipe_context *context)
-{
-   struct sct_context_list *prev = NULL, *curr, *next;
-
-   for (curr = si->contexts; curr; curr = next) {
-      if (curr->context == context) {
-         /* remove */
-         if (prev)
-            prev->next = curr->next;
-         else
-            si->contexts = curr->next;
-         next = curr->next;
-         FREE(curr);
-      }
-      else {
-         prev = curr;
-         next = curr->next;
-      }
-   }
-}
-
-
-/**
- * Unbind context from surface.
- */
-static void
-unbind_context_surface(struct surface_context_tracker *sct,
-                       struct pipe_context *context,
-                       struct pipe_surface *surface)
-{
-   struct sct_surface *si = find_surface_info(sct, surface);
-   if (si) {
-      remove_context_from_surface(si, context);
-   }
-}
-
-
-/**
- * Bind context to a set of surfaces (color + Z).
- * Like MakeCurrent().
- */
-void
-sct_bind_surfaces(struct surface_context_tracker *sct,
-                  struct pipe_context *context,
-                  uint num_surf,
-                  struct pipe_surface **surfaces)
-{
-   struct sct_context *ci = find_create_context_info(sct, context);
-   uint i;
-
-   if (!ci) {
-      return; /* out of memory */
-   }
-
-   /* unbind currently bound surfaces */
-   for (i = 0; i < MAX_SURFACES; i++) {
-      if (ci->surfaces[i]) {
-         unbind_context_surface(sct, context, ci->surfaces[i]);
-      }
-   }
-
-   /* bind new surfaces */
-   for (i = 0; i < num_surf; i++) {
-      struct sct_surface *si = find_create_surface_info(sct, surfaces[i]);
-      if (!find_surface_context(si, context)) {
-         add_context_to_surface(si, context);
-      }
-   }
-}
-
-
-/**
- * Return list of contexts bound to a surface.
- */
-const struct sct_context_list *
-sct_get_surface_contexts(struct surface_context_tracker *sct,
-                         const struct pipe_surface *surface)
-{
-   const struct sct_surface *si = find_surface_info(sct, surface);
-   return si->contexts;
-}
-
-
-
-static boolean
-find_texture(const struct sct_context *ci,
-             const struct pipe_texture *texture)
-{
-   const struct texture_list *tl;
-
-   for (tl = ci->textures_used; tl; tl = tl->next) {
-      if (tl->texture == texture) {
-         return TRUE;
-      }
-   }
-   return FALSE;
-}
-
-
-/**
- * Add the given texture to the context's list of used textures.
- */
-static void
-add_texture_used(struct sct_context *ci,
-                 struct pipe_texture *texture)
-{
-   if (!find_texture(ci, texture)) {
-      /* add to list */
-      struct texture_list *tl = CALLOC_STRUCT(texture_list);
-      if (tl) {
-         pipe_texture_reference(&tl->texture, texture);
-         /* insert at head */
-         tl->next = ci->textures_used;
-         ci->textures_used = tl;
-      }
-   }
-}
-
-
-/**
- * Bind a texture to a rendering context.
- */
-void
-sct_bind_texture(struct surface_context_tracker *sct,
-                 struct pipe_context *context,
-                 uint unit,
-                 struct pipe_texture *tex)
-{
-   struct sct_context *ci = find_context_info(sct, context);
-
-   if (ci->textures[unit] != tex) {
-      /* put texture on the 'used' list */
-      add_texture_used(ci, tex);
-      /* bind new */
-      pipe_texture_reference(&ci->textures[unit], tex);
-   }
-}
-
-
-/**
- * Check if the given texture has been used by the rendering context
- * since the last call to sct_flush_textures().
- */
-boolean
-sct_is_texture_used(struct surface_context_tracker *sct,
-                    const struct pipe_context *context,
-                    const struct pipe_texture *texture)
-{
-   const struct sct_context *ci = find_context_info(sct, context);
-   return find_texture(ci, texture);
-}
-
-
-/**
- * To be called when the image contents of a texture are changed, such
- * as for gl[Copy]TexSubImage().
- * XXX this may not be needed
- */
-void
-sct_update_texture(struct pipe_texture *tex)
-{
-
-}
-
-
-/**
- * When a scene is flushed/rendered we can release the list of
- * used textures.
- */
-void
-sct_flush_textures(struct surface_context_tracker *sct,
-                   struct pipe_context *context)
-{
-   struct sct_context *ci = find_context_info(sct, context);
-   struct texture_list *tl, *next;
-   uint i;
-
-   for (tl = ci->textures_used; tl; tl = next) {
-      next = tl->next;
-      pipe_texture_reference(&tl->texture, NULL);
-      FREE(tl);
-   }
-   ci->textures_used = NULL;
-
-   /* put the currently bound textures on the 'used' list */
-   for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
-      add_texture_used(ci, ci->textures[i]);
-   }
-}
-
-
-
-void
-sct_destroy_context(struct surface_context_tracker *sct,
-                    struct pipe_context *context)
-{
-   /* XXX should we require an unbinding first? */
-   {
-      struct sct_surface *si;
-      for (si = sct->surfaces; si; si = si->next) {
-         remove_context_from_surface(si, context);
-      }
-   }
-
-   /* remove context from context_info list */
-   {
-      struct sct_context *ci, *next, *prev = NULL;
-      for (ci = sct->contexts; ci; ci = next) {
-         next = ci->next;
-         if (ci->context == context) {
-            if (prev)
-               prev->next = ci->next;
-            else
-               sct->contexts = ci->next;
-            FREE(ci);
-         }
-         else {
-            prev = ci;
-         }
-      }
-   }
-
-}
-
-
-void
-sct_destroy_surface(struct surface_context_tracker *sct,
-                    struct pipe_surface *surface)
-{
-   if (1) {
-      /* debug/sanity: no context should be bound to surface */
-      struct sct_context *ci;
-      uint i;
-      for (ci = sct->contexts; ci; ci = ci->next) {
-         for (i = 0; i < MAX_SURFACES; i++) {
-            assert(ci->surfaces[i] != surface);
-         }
-      }
-   }
-
-   /* remove surface from sct_surface list */
-   {
-      struct sct_surface *si, *next, *prev = NULL;
-      for (si = sct->surfaces; si; si = next) {
-         next = si->next;
-         if (si->surface == surface) {
-            /* unlink */
-            if (prev)
-               prev->next = si->next;
-            else
-               sct->surfaces = si->next;
-            FREE(si);
-         }
-         else {
-            prev = si;
-         }
-      }
-   }
-}
diff --git a/src/gallium/auxiliary/sct/sct.h b/src/gallium/auxiliary/sct/sct.h
deleted file mode 100644
index cf7c4d3bdfd..00000000000
--- a/src/gallium/auxiliary/sct/sct.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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.
- * 
- **************************************************************************/
-
-/**
- * Surface/Context Tracking
- *
- * For some drivers, we need to monitor the binding between contexts and
- * surfaces/textures.
- * This code may evolve quite a bit...
- */
-
-
-#ifndef SCT_H
-#define SCT_H
-
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-
-struct pipe_context;
-struct pipe_surface;
-
-struct sct_context;
-struct sct_surface;
-
-
-/**
- * Per-device info, basically
- */
-struct surface_context_tracker
-{
-   struct sct_context *contexts;
-   struct sct_surface *surfaces;
-};
-
-
-
-/**
- * Simple linked list of contexts
- */
-struct sct_context_list
-{
-   const struct pipe_context *context;
-   struct sct_context_list *next;
-};
-
-
-
-extern void
-sct_bind_surfaces(struct surface_context_tracker *sct,
-                  struct pipe_context *context,
-                  uint num_surf,
-                  struct pipe_surface **surfaces);
-
-
-extern void
-sct_bind_texture(struct surface_context_tracker *sct,
-                 struct pipe_context *context,
-                 uint unit,
-                 struct pipe_texture *texture);
-
-
-extern void
-sct_update_texture(struct pipe_texture *tex);
-
-
-extern boolean
-sct_is_texture_used(struct surface_context_tracker *sct,
-                    const struct pipe_context *context,
-                    const struct pipe_texture *texture);
-
-extern void
-sct_flush_textures(struct surface_context_tracker *sct,
-                   struct pipe_context *context);
-
-
-extern const struct sct_context_list *
-sct_get_surface_contexts(struct surface_context_tracker *sct,
-                         const struct pipe_surface *surf);
-
-
-extern void
-sct_destroy_context(struct surface_context_tracker *sct,
-                    struct pipe_context *context);
-
-
-extern void
-sct_destroy_surface(struct surface_context_tracker *sct,
-                    struct pipe_surface *surface);
-
-
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif /* SCT_H */
diff --git a/src/gallium/auxiliary/sct/usage.c b/src/gallium/auxiliary/sct/usage.c
deleted file mode 100644
index 6227f199628..00000000000
--- a/src/gallium/auxiliary/sct/usage.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/* surface / context tracking */
-
-
-/*
-
-context A:
-  render to texture T
-
-context B:
-  texture from T
-
------------------------
-
-flush surface:
-  which contexts are bound to the surface?
-
------------------------
-
-glTexSubImage():
-  which contexts need to be flushed?
-
- */
-
-
-/*
-
-in MakeCurrent():
-
-  call sct_bind_surfaces(context, list of surfaces) to update the
-  dependencies between context and surfaces
-
-
-in SurfaceFlush(), or whatever it is in D3D:
-
-  call sct_get_surface_contexts(surface) to get a list of contexts
-  which are currently bound to the surface.
-
-
-
-in BindTexture():
-
-  call sct_bind_texture(context, texture) to indicate that the texture
-  is used in the scene.
-
-
-in glTexSubImage() or RenderToTexture():
-
-  call sct_is_texture_used(context, texture) to determine if the texture
-  has been used in the scene, but the scene's not flushed.  If TRUE is
-  returned it means the scene has to be rendered/flushed before the contents
-  of the texture can be changed.
-
-
-in psb_scene_flush/terminate():
-
-  call sct_flush_textures(context) to tell the SCT that the textures which
-  were used in the scene can be released.
-
-
-
-*/