gallium drivers: report that user vertex buffers are supported

[mesa.git] / src / gallium / drivers / llvmpipe / lp_texture.c

diff --git a/src/gallium/drivers/llvmpipe/lp_texture.c b/src/gallium/drivers/llvmpipe/lp_texture.c
index 9753da5e57e8e62663f5851cb5875c8436e4cc21..f6a1ec26bc5ec47196698e9c92e152334824db86 100644 (file)
--- a/src/gallium/drivers/llvmpipe/lp_texture.c
+++ b/src/gallium/drivers/llvmpipe/lp_texture.c
@@ -163,6 +163,9 @@ llvmpipe_texture_layout(struct llvmpipe_screen *screen,
          lpr->num_slices_faces[level] = num_slices;
 
          lpr->layout[level] = alloc_layout_array(num_slices, width, height);
+         if (!lpr->layout[level]) {
+            goto fail;
+         }
       }
 
       /* Compute size of next mipmap level */
@@ -172,6 +175,15 @@ llvmpipe_texture_layout(struct llvmpipe_screen *screen,
    }
 
    return TRUE;
+
+fail:
+   for (level = 0; level <= pt->last_level; level++) {
+      if (lpr->layout[level]) {
+         FREE(lpr->layout[level]);
+      }
+   }
+
+   return FALSE;
 }
 
 
@@ -196,7 +208,9 @@ llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen,
    lpr->img_stride[0] = 0;
 
    lpr->layout[0] = alloc_layout_array(1, width, height);
-   //lpr->layout[0][0] = LP_TEX_LAYOUT_LINEAR;
+   if (!lpr->layout[0]) {
+      return FALSE;
+   }
 
    lpr->dt = winsys->displaytarget_create(winsys,
                                           lpr->base.bind,
@@ -205,7 +219,20 @@ llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen,
                                           16,
                                           &lpr->row_stride[0] );
 
-   return lpr->dt != NULL;
+   if (lpr->dt == NULL)
+      return FALSE;
+
+   {
+      void *map = winsys->displaytarget_map(winsys, lpr->dt,
+                                            PIPE_TRANSFER_WRITE);
+
+      if (map)
+         memset(map, 0, height * lpr->row_stride[0]);
+
+      winsys->displaytarget_unmap(winsys, lpr->dt);
+   }
+
+   return TRUE;
 }
 
 
@@ -251,6 +278,7 @@ llvmpipe_resource_create(struct pipe_screen *_screen,
       lpr->data = align_malloc(bytes, 16);
       if (!lpr->data)
          goto fail;
+      memset(lpr->data, 0, bytes);
    }
 
    lpr->id = id_counter++;
@@ -437,13 +465,15 @@ llvmpipe_resource_from_handle(struct pipe_screen *screen,
                              struct winsys_handle *whandle)
 {
    struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys;
-   struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource);
+   struct llvmpipe_resource *lpr;
    unsigned width, height, width_t, height_t;
 
    /* XXX Seems like from_handled depth textures doesn't work that well */
 
-   if (!lpr)
-      return NULL;
+   lpr = CALLOC_STRUCT(llvmpipe_resource);
+   if (!lpr) {
+      goto no_lpr;
+   }
 
    lpr->base = *template;
    pipe_reference_init(&lpr->base.reference, 1);
@@ -472,12 +502,15 @@ llvmpipe_resource_from_handle(struct pipe_screen *screen,
                                                template,
                                                whandle,
                                                &lpr->row_stride[0]);
-   if (!lpr->dt)
-      goto fail;
+   if (!lpr->dt) {
+      goto no_dt;
+   }
 
    lpr->layout[0] = alloc_layout_array(1, lpr->base.width0, lpr->base.height0);
+   if (!lpr->layout[0]) {
+      goto no_layout_0;
+   }
 
-   assert(lpr->layout[0]);
    assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE);
 
    lpr->id = id_counter++;
@@ -488,8 +521,11 @@ llvmpipe_resource_from_handle(struct pipe_screen *screen,
 
    return &lpr->base;
 
- fail:
+no_layout_0:
+   winsys->displaytarget_destroy(winsys, lpr->dt);
+no_dt:
    FREE(lpr);
+no_lpr:
    return NULL;
 }
 
@@ -575,7 +611,6 @@ llvmpipe_get_transfer(struct pipe_context *pipe,
       if (!llvmpipe_flush_resource(pipe, resource,
                                    level,
                                    box->depth > 1 ? -1 : box->z,
-                                   0, /* flush_flags */
                                    read_only,
                                    TRUE, /* cpu_access */
                                    do_not_block,
@@ -695,7 +730,7 @@ llvmpipe_transfer_unmap(struct pipe_context *pipe,
                            transfer->box.z);
 }
 
-static unsigned int
+unsigned int
 llvmpipe_is_resource_referenced( struct pipe_context *pipe,
                                  struct pipe_resource *presource,
                                  unsigned level, int layer)
@@ -703,7 +738,7 @@ llvmpipe_is_resource_referenced( struct pipe_context *pipe,
    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 
    if (presource->target == PIPE_BUFFER)
-      return PIPE_UNREFERENCED;
+      return LP_UNREFERENCED;
 
    return lp_setup_is_resource_referenced(llvmpipe->setup, presource);
 }
@@ -735,6 +770,7 @@ llvmpipe_user_buffer_create(struct pipe_screen *screen,
    buffer->base.height0 = 1;
    buffer->base.depth0 = 1;
    buffer->base.array_size = 1;
+   buffer->base.user_ptr = ptr;
    buffer->userBuffer = TRUE;
    buffer->data = ptr;
 
@@ -939,11 +975,16 @@ alloc_image_data(struct llvmpipe_resource *lpr, unsigned level,
       /* tiled data is stored in regular memory */
       uint buffer_size = tex_image_size(lpr, level, layout);
       lpr->tiled[level].data = align_malloc(buffer_size, alignment);
+      if (lpr->tiled[level].data) {
+         memset(lpr->tiled[level].data, 0, buffer_size);
+      }
    }
    else {
       assert(layout == LP_TEX_LAYOUT_LINEAR);
       if (lpr->dt) {
-         /* we get the linear memory from the winsys */
+         /* we get the linear memory from the winsys, and it has
+          * already been zeroed
+          */
          struct llvmpipe_screen *screen = llvmpipe_screen(lpr->base.screen);
          struct sw_winsys *winsys = screen->winsys;
 
@@ -955,6 +996,9 @@ alloc_image_data(struct llvmpipe_resource *lpr, unsigned level,
          /* not a display target - allocate regular memory */
          uint buffer_size = tex_image_size(lpr, level, LP_TEX_LAYOUT_LINEAR);
          lpr->linear[level].data = align_malloc(buffer_size, alignment);
+         if (lpr->linear[level].data) {
+            memset(lpr->linear[level].data, 0, buffer_size);
+         }
       }
    }
 }
@@ -1401,7 +1445,6 @@ llvmpipe_init_context_resource_funcs(struct pipe_context *pipe)
    pipe->transfer_destroy = llvmpipe_transfer_destroy;
    pipe->transfer_map = llvmpipe_transfer_map;
    pipe->transfer_unmap = llvmpipe_transfer_unmap;
-   pipe->is_resource_referenced = llvmpipe_is_resource_referenced;
  
    pipe->transfer_flush_region = u_default_transfer_flush_region;
    pipe->transfer_inline_write = u_default_transfer_inline_write;