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-rw-r--r--src/gallium/drivers/i915simple/i915_texture.c66
1 files changed, 35 insertions, 31 deletions
diff --git a/src/gallium/drivers/i915simple/i915_texture.c b/src/gallium/drivers/i915simple/i915_texture.c
index 935bc742b1..b216e3bfb9 100644
--- a/src/gallium/drivers/i915simple/i915_texture.c
+++ b/src/gallium/drivers/i915simple/i915_texture.c
@@ -104,48 +104,49 @@ i915_miptree_set_image_offset(struct i915_texture *tex,
*/
}
-#if 0
-/* Hack it up to use the old winsys->surface_alloc_storage()
- * method for now:
+static unsigned
+power_of_two(unsigned x)
+{
+ int value = 1;
+ while (value <= x)
+ value = value << 1;
+ return value;
+}
+
+static unsigned
+round_up(unsigned n, unsigned multiple)
+{
+ return (n + multiple - 1) & ~(multiple - 1);
+}
+
+/**
+ * Special case to deal with display targets.
*/
static boolean
i915_displaytarget_layout(struct pipe_screen *screen,
struct i915_texture *tex)
{
- struct pipe_winsys *ws = screen->winsys;
- struct pipe_surface surf;
- unsigned flags = (PIPE_BUFFER_USAGE_CPU_READ |
- PIPE_BUFFER_USAGE_CPU_WRITE |
- PIPE_BUFFER_USAGE_GPU_READ |
- PIPE_BUFFER_USAGE_GPU_WRITE);
-
-
- memset(&surf, 0, sizeof(surf));
-
- ws->surface_alloc_storage( ws,
- &surf,
- tex->base.width[0],
- tex->base.height[0],
- tex->base.format,
- flags,
- tex->base.tex_usage);
-
- /* Now extract the goodies:
- */
+ struct pipe_texture *pt = &tex->base;
+
+ if (pt->last_level > 1 || pt->cpp != 4)
+ return 0;
+
i915_miptree_set_level_info( tex, 0, 1, 0, 0,
tex->base.width[0],
tex->base.height[0],
1 );
i915_miptree_set_image_offset( tex, 0, 0, 0, 0 );
- tex->buffer = surf.buffer;
- tex->pitch = surf.pitch;
- tex->total_height = 0;
-
+#if 0
+ tex->pitch = MAX2(512, power_of_two(tex->base.width[0] * pt->cpp)) / pt->cpp;
+ tex->total_height = round_up(tex->base.height[0], 8);
+#else
+ tex->pitch = round_up(tex->base.width[0], 64 / pt->cpp);
+ tex->total_height = tex->base.height[0];
+#endif
- return tex->buffer != NULL;
+ return 1;
}
-#endif
static void
i945_miptree_layout_2d( struct i915_texture *tex )
@@ -529,14 +530,17 @@ i915_texture_create(struct pipe_screen *screen,
struct pipe_winsys *ws = screen->winsys;
struct i915_texture *tex = CALLOC_STRUCT(i915_texture);
- if (!tex)
+ if (!tex)
return NULL;
tex->base = *templat;
tex->base.refcount = 1;
tex->base.screen = screen;
- if (i915screen->is_i945) {
+ if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) {
+ if (!i915_displaytarget_layout(screen, tex))
+ goto fail;
+ } else if (i915screen->is_i945) {
if (!i945_miptree_layout(tex))
goto fail;
} else {