From 8f7c6b55ae962e30f32cfec9a14a652d3b5b5943 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 14 Oct 2008 17:11:29 -0600
Subject: cell: support for cubemaps

Though, progs/demos/cubemap.c doesn't quite work right...
---
 src/gallium/drivers/cell/ppu/cell_state_emit.c |  2 ++
 src/gallium/drivers/cell/ppu/cell_texture.c    | 37 +++++++++++++++++---------
 2 files changed, 27 insertions(+), 12 deletions(-)

(limited to 'src/gallium/drivers/cell/ppu')

diff --git a/src/gallium/drivers/cell/ppu/cell_state_emit.c b/src/gallium/drivers/cell/ppu/cell_state_emit.c
index cae546b700..d4a867ffcf 100644
--- a/src/gallium/drivers/cell/ppu/cell_state_emit.c
+++ b/src/gallium/drivers/cell/ppu/cell_state_emit.c
@@ -217,6 +217,7 @@ cell_emit_state(struct cell_context *cell)
                texture->width[level] = cell->texture[i]->base.width[level];
                texture->height[level] = cell->texture[i]->base.height[level];
             }
+            texture->target = cell->texture[i]->base.target;
          }
          else {
             uint level;
@@ -225,6 +226,7 @@ cell_emit_state(struct cell_context *cell)
                texture->width[level] = 0;
                texture->height[level] = 0;
             }
+            texture->target = 0;
          }
       }
    }
diff --git a/src/gallium/drivers/cell/ppu/cell_texture.c b/src/gallium/drivers/cell/ppu/cell_texture.c
index 4fd66bdea0..4c92ef154f 100644
--- a/src/gallium/drivers/cell/ppu/cell_texture.c
+++ b/src/gallium/drivers/cell/ppu/cell_texture.c
@@ -137,6 +137,7 @@ cell_texture_release(struct pipe_screen *screen,
    */
    if (--(*pt)->refcount <= 0) {
       struct cell_texture *ct = cell_texture(*pt);
+      uint i;
 
       /*
       DBG("%s deleting %p\n", __FUNCTION__, (void *) ct);
@@ -144,6 +145,12 @@ cell_texture_release(struct pipe_screen *screen,
 
       pipe_buffer_reference(screen, &ct->buffer, NULL);
 
+      for (i = 0; i < CELL_MAX_TEXTURE_LEVELS; i++) {
+         if (ct->tiled_data[i]) {
+            FREE(ct->tiled_data[i]);
+         }
+      }
+
       FREE(ct);
    }
    *pt = NULL;
@@ -204,27 +211,33 @@ static void
 cell_twiddle_texture(struct pipe_screen *screen,
                      struct pipe_surface *surface)
 {
-   struct cell_texture *texture = cell_texture(surface->texture);
+   struct cell_texture *ct = cell_texture(surface->texture);
    const uint level = surface->level;
-   const uint texWidth = texture->base.width[level];
-   const uint texHeight = texture->base.height[level];
+   const uint texWidth = ct->base.width[level];
+   const uint texHeight = ct->base.height[level];
    const uint bufWidth = align(texWidth, TILE_SIZE);
    const uint bufHeight = align(texHeight, TILE_SIZE);
    const void *map = pipe_buffer_map(screen, surface->buffer,
                                      PIPE_BUFFER_USAGE_CPU_READ);
    const uint *src = (const uint *) ((const ubyte *) map + surface->offset);
 
-   switch (texture->base.format) {
+   switch (ct->base.format) {
    case PIPE_FORMAT_A8R8G8B8_UNORM:
-      /* free old tiled data */
-      if (texture->tiled_data[level]) {
-         align_free(texture->tiled_data[level]);
+      {
+         int numFaces = ct->base.target == PIPE_TEXTURE_CUBE ? 6 : 1;
+         int offset = bufWidth * bufHeight * 4 * surface->face;
+         uint *dst;
+
+         if (!ct->tiled_data[level]) {
+            ct->tiled_data[level] =
+               align_malloc(bufWidth * bufHeight * 4 * numFaces, 16);
+         }
+
+         dst = (uint *) ((ubyte *) ct->tiled_data[level] + offset);
+
+         twiddle_image_uint(texWidth, texHeight, TILE_SIZE, dst,
+                            surface->stride, src);
       }
-      /* alloc new tiled data */
-      texture->tiled_data[level] = align_malloc(bufWidth * bufHeight * 4, 16);
-      twiddle_image_uint(texWidth, texHeight, TILE_SIZE,
-                         texture->tiled_data[level],
-                         surface->stride, src);
       break;
    default:
       printf("Cell: twiddle unsupported texture format\n");
-- 
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