radeonsi: force NaNs to 0
[mesa.git] / src / gallium / drivers / llvmpipe / lp_state_sampler.c
index 30547a69f0dc18c0625b3b3fc6afbf98a64dfcc0..21da62905749a3c5691f3e615df3a8962b5e1f82 100644 (file)
@@ -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.
@@ -77,13 +77,6 @@ llvmpipe_bind_sampler_states(struct pipe_context *pipe,
    assert(shader < PIPE_SHADER_TYPES);
    assert(start + num <= Elements(llvmpipe->samplers[shader]));
 
-   /* Check for no-op */
-   if (start + num <= llvmpipe->num_samplers[shader] &&
-       !memcmp(llvmpipe->samplers[shader] + start, samplers,
-               num * sizeof(void *))) {
-      return;
-   }
-
    draw_flush(llvmpipe->draw);
 
    /* set the new samplers */
@@ -110,29 +103,6 @@ llvmpipe_bind_sampler_states(struct pipe_context *pipe,
 }
 
 
-static void
-llvmpipe_bind_fragment_sampler_states(struct pipe_context *pipe,
-                                      unsigned num, void **samplers)
-{
-   llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0, num, samplers);
-}
-
-
-static void
-llvmpipe_bind_vertex_sampler_states(struct pipe_context *pipe,
-                                    unsigned num, void **samplers)
-{
-   llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_VERTEX, 0, num, samplers);
-}
-
-
-static void
-llvmpipe_bind_geometry_sampler_states(struct pipe_context *pipe,
-                                      unsigned num, void **samplers)
-{
-   llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_GEOMETRY, 0, num, samplers);
-}
-
 static void
 llvmpipe_set_sampler_views(struct pipe_context *pipe,
                            unsigned shader,
@@ -148,17 +118,16 @@ llvmpipe_set_sampler_views(struct pipe_context *pipe,
    assert(shader < PIPE_SHADER_TYPES);
    assert(start + num <= Elements(llvmpipe->sampler_views[shader]));
 
-   /* Check for no-op */
-   if (start + num <= llvmpipe->num_sampler_views[shader] &&
-       !memcmp(llvmpipe->sampler_views[shader] + start, views,
-               num * sizeof(struct pipe_sampler_view *))) {
-      return;
-   }
-
    draw_flush(llvmpipe->draw);
 
    /* set the new sampler views */
    for (i = 0; i < num; i++) {
+      /* Note: we're using pipe_sampler_view_release() here to work around
+       * a possible crash when the old view belongs to another context that
+       * was already destroyed.
+       */
+      pipe_sampler_view_release(pipe,
+                                &llvmpipe->sampler_views[shader][start + i]);
       pipe_sampler_view_reference(&llvmpipe->sampler_views[shader][start + i],
                                   views[i]);
    }
@@ -182,38 +151,18 @@ llvmpipe_set_sampler_views(struct pipe_context *pipe,
 }
 
 
-static void
-llvmpipe_set_fragment_sampler_views(struct pipe_context *pipe,
-                                    unsigned num,
-                                    struct pipe_sampler_view **views)
-{
-   llvmpipe_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, num, views);
-}
-
-
-static void
-llvmpipe_set_vertex_sampler_views(struct pipe_context *pipe,
-                                  unsigned num,
-                                  struct pipe_sampler_view **views)
-{
-   llvmpipe_set_sampler_views(pipe, PIPE_SHADER_VERTEX, 0, num, views);
-}
-
-
-static void
-llvmpipe_set_geometry_sampler_views(struct pipe_context *pipe,
-                                    unsigned num,
-                                    struct pipe_sampler_view **views)
-{
-   llvmpipe_set_sampler_views(pipe, PIPE_SHADER_GEOMETRY, 0, num, views);
-}
-
 static struct pipe_sampler_view *
 llvmpipe_create_sampler_view(struct pipe_context *pipe,
                             struct pipe_resource *texture,
                             const struct pipe_sampler_view *templ)
 {
    struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
+   /*
+    * XXX we REALLY want to see the correct bind flag here but the OpenGL
+    * state tracker can't guarantee that at least for texture buffer objects.
+    */
+   if (!(texture->bind & PIPE_BIND_SAMPLER_VIEW))
+      debug_printf("Illegal sampler view creation without bind flag\n");
 
    if (view) {
       *view = *templ;
@@ -244,14 +193,15 @@ llvmpipe_delete_sampler_state(struct pipe_context *pipe,
 }
 
 
-/**
- * Called during state validation when LP_NEW_SAMPLER_VIEW is set.
- */
-void
-llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
-                                 unsigned num,
-                                 struct pipe_sampler_view **views)
+static void
+prepare_shader_sampling(
+   struct llvmpipe_context *lp,
+   unsigned num,
+   struct pipe_sampler_view **views,
+   unsigned shader_type,
+   struct pipe_resource *mapped_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS])
 {
+
    unsigned i;
    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
@@ -276,57 +226,47 @@ llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
          /* We're referencing the texture's internal data, so save a
           * reference to it.
           */
-         pipe_resource_reference(&lp->mapped_vs_tex[i], tex);
+         pipe_resource_reference(&mapped_tex[i], tex);
 
          if (!lp_tex->dt) {
             /* regular texture - setup array of mipmap level offsets */
             struct pipe_resource *res = view->texture;
             int j;
-            void *mip_ptr;
 
             if (llvmpipe_resource_is_texture(res)) {
                first_level = view->u.tex.first_level;
                last_level = view->u.tex.last_level;
                assert(first_level <= last_level);
                assert(last_level <= res->last_level);
-
-               /* must trigger allocation first before we can get base ptr */
-               /* XXX this may fail due to OOM ? */
-               mip_ptr = llvmpipe_get_texture_image_all(lp_tex, view->u.tex.first_level,
-                                                        LP_TEX_USAGE_READ,
-                                                        LP_TEX_LAYOUT_LINEAR);
-               addr = lp_tex->linear_img.data;
+               addr = lp_tex->tex_data;
 
                for (j = first_level; j <= last_level; j++) {
-                  mip_ptr = llvmpipe_get_texture_image_all(lp_tex, j,
-                                                           LP_TEX_USAGE_READ,
-                                                           LP_TEX_LAYOUT_LINEAR);
-                  mip_offsets[j] = (uint8_t *)mip_ptr - (uint8_t *)addr;
-                  /*
-                   * could get mip offset directly but need call above to
-                   * invoke tiled->linear conversion.
-                   */
-                  assert(lp_tex->linear_mip_offsets[j] == mip_offsets[j]);
+                  mip_offsets[j] = lp_tex->mip_offsets[j];
                   row_stride[j] = lp_tex->row_stride[j];
                   img_stride[j] = lp_tex->img_stride[j];
                }
                if (res->target == PIPE_TEXTURE_1D_ARRAY ||
-                   res->target == PIPE_TEXTURE_2D_ARRAY) {
+                   res->target == PIPE_TEXTURE_2D_ARRAY ||
+                   res->target == PIPE_TEXTURE_CUBE_ARRAY) {
                   num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
-                  addr = (uint8_t *)addr +
-                                  view->u.tex.first_layer * lp_tex->img_stride[0];
+                  for (j = first_level; j <= last_level; j++) {
+                     mip_offsets[j] += view->u.tex.first_layer *
+                                       lp_tex->img_stride[j];
+                  }
+                  if (res->target == PIPE_TEXTURE_CUBE_ARRAY) {
+                     assert(num_layers % 6 == 0);
+                  }
                   assert(view->u.tex.first_layer <= view->u.tex.last_layer);
                   assert(view->u.tex.last_layer < res->array_size);
                }
             }
             else {
                unsigned view_blocksize = util_format_get_blocksize(view->format);
-               mip_ptr = lp_tex->data;
-               addr = mip_ptr;
+               addr = lp_tex->data;
                /* probably don't really need to fill that out */
                mip_offsets[0] = 0;
                row_stride[0] = 0;
-               row_stride[0] = 0;
+               img_stride[0] = 0;
 
                /* everything specified in number of elements here. */
                width0 = view->u.buf.last_element - view->u.buf.first_element + 1;
@@ -351,7 +291,7 @@ llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
             assert(addr);
          }
          draw_set_mapped_texture(lp->draw,
-                                 PIPE_SHADER_VERTEX,
+                                 shader_type,
                                  i,
                                  width0, tex->height0, num_layers,
                                  first_level, last_level,
@@ -361,6 +301,19 @@ llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
    }
 }
 
+
+/**
+ * Called during state validation when LP_NEW_SAMPLER_VIEW is set.
+ */
+void
+llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
+                                 unsigned num,
+                                 struct pipe_sampler_view **views)
+{
+   prepare_shader_sampling(lp, num, views, PIPE_SHADER_VERTEX,
+                           lp->mapped_vs_tex);
+}
+
 void
 llvmpipe_cleanup_vertex_sampling(struct llvmpipe_context *ctx)
 {
@@ -370,18 +323,36 @@ llvmpipe_cleanup_vertex_sampling(struct llvmpipe_context *ctx)
    }
 }
 
+
+/**
+ * Called during state validation when LP_NEW_SAMPLER_VIEW is set.
+ */
+void
+llvmpipe_prepare_geometry_sampling(struct llvmpipe_context *lp,
+                                   unsigned num,
+                                   struct pipe_sampler_view **views)
+{
+   prepare_shader_sampling(lp, num, views, PIPE_SHADER_GEOMETRY,
+                           lp->mapped_gs_tex);
+}
+
+void
+llvmpipe_cleanup_geometry_sampling(struct llvmpipe_context *ctx)
+{
+   unsigned i;
+   for (i = 0; i < Elements(ctx->mapped_gs_tex); i++) {
+      pipe_resource_reference(&ctx->mapped_gs_tex[i], NULL);
+   }
+}
+
 void
 llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe)
 {
    llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
 
-   llvmpipe->pipe.bind_fragment_sampler_states  = llvmpipe_bind_fragment_sampler_states;
-   llvmpipe->pipe.bind_vertex_sampler_states  = llvmpipe_bind_vertex_sampler_states;
-   llvmpipe->pipe.bind_geometry_sampler_states  = llvmpipe_bind_geometry_sampler_states;
-   llvmpipe->pipe.set_fragment_sampler_views = llvmpipe_set_fragment_sampler_views;
-   llvmpipe->pipe.set_vertex_sampler_views = llvmpipe_set_vertex_sampler_views;
-   llvmpipe->pipe.set_geometry_sampler_views = llvmpipe_set_geometry_sampler_views;
+   llvmpipe->pipe.bind_sampler_states = llvmpipe_bind_sampler_states;
    llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view;
+   llvmpipe->pipe.set_sampler_views = llvmpipe_set_sampler_views;
    llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy;
    llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
 }