#include "util/u_transfer.h"
+#include "freedreno_util.h"
+
+/* Texture Layout on a3xx:
+ *
+ * Each mipmap-level contains all of it's layers (ie. all cubmap
+ * faces, all 1d/2d array elements, etc). The texture sampler is
+ * programmed with the start address of each mipmap level, and hw
+ * derives the layer offset within the level.
+ *
+ * Texture Layout on a4xx:
+ *
+ * For cubemap and 2d array, each layer contains all of it's mipmap
+ * levels (layer_first layout).
+ *
+ * 3d textures are layed out as on a3xx, but unknown about 3d-array
+ * textures.
+ *
+ * In either case, the slice represents the per-miplevel information,
+ * but in layer_first layout it only includes the first layer, and
+ * an additional offset of (rsc->layer_size * layer) must be added.
+ */
+struct fd_resource_slice {
+ uint32_t offset; /* offset of first layer in slice */
+ uint32_t pitch;
+ uint32_t size0; /* size of first layer in slice */
+};
+
struct fd_resource {
struct u_resource base;
struct fd_bo *bo;
- uint32_t pitch, cpp;
+ uint32_t cpp;
+ bool layer_first; /* see above description */
+ uint32_t layer_size;
+ struct fd_resource_slice slices[MAX_MIP_LEVELS];
uint32_t timestamp;
bool dirty;
};
return (struct fd_resource *)ptex;
}
+static INLINE struct fd_resource_slice *
+fd_resource_slice(struct fd_resource *rsc, unsigned level)
+{
+ assert(level <= rsc->base.b.last_level);
+ return &rsc->slices[level];
+}
+
+/* get offset for specified mipmap level and texture/array layer */
+static INLINE uint32_t
+fd_resource_offset(struct fd_resource *rsc, unsigned level, unsigned layer)
+{
+ struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
+ unsigned offset;
+ if (rsc->layer_first) {
+ offset = slice->offset + (rsc->layer_size * layer);
+ } else {
+ offset = slice->offset + (slice->size0 * layer);
+ }
+ debug_assert(offset < fd_bo_size(rsc->bo));
+ return offset;
+}
+
void fd_resource_screen_init(struct pipe_screen *pscreen);
void fd_resource_context_init(struct pipe_context *pctx);