--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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
+ * 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.
+ *
+ **************************************************************************/
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ * Michel Dänzer <michel@tungstengraphics.com>
+ */
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_util.h"
+#include "pipe/p_winsys.h"
+
+#include "cell_context.h"
+#include "cell_state.h"
+#include "cell_texture.h"
+
+
+/* Simple, maximally packed layout.
+ */
+
+static unsigned minify( unsigned d )
+{
+ return MAX2(1, d>>1);
+}
+
+
+static void
+cell_texture_layout(struct cell_texture * spt)
+{
+ struct pipe_texture *pt = &spt->base;
+ unsigned level;
+ unsigned width = pt->width[0];
+ unsigned height = pt->height[0];
+ unsigned depth = pt->depth[0];
+
+ spt->buffer_size = 0;
+
+ for ( level = pt->first_level ; level <= pt->last_level ; level++ ) {
+ pt->width[level] = width;
+ pt->height[level] = height;
+ pt->depth[level] = depth;
+
+ spt->level_offset[level] = spt->buffer_size;
+
+ spt->buffer_size += ((pt->compressed) ? MAX2(1, height/4) : height) *
+ ((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) *
+ width * pt->cpp;
+
+ width = minify(width);
+ height = minify(height);
+ depth = minify(depth);
+ }
+}
+
+
+void
+cell_texture_create(struct pipe_context *pipe, struct pipe_texture **pt)
+{
+ struct cell_texture *spt = REALLOC(*pt, sizeof(struct pipe_texture),
+ sizeof(struct cell_texture));
+
+ if (spt) {
+ memset(&spt->base + 1, 0,
+ sizeof(struct cell_texture) - sizeof(struct pipe_texture));
+
+ cell_texture_layout(spt);
+
+ spt->buffer = pipe->winsys->buffer_create(pipe->winsys, 32, 0, 0);
+
+ if (spt->buffer) {
+ pipe->winsys->buffer_data(pipe->winsys, spt->buffer, spt->buffer_size,
+ NULL, PIPE_BUFFER_USAGE_PIXEL);
+ }
+
+ if (!spt->buffer) {
+ FREE(spt);
+ spt = NULL;
+ }
+ }
+
+ *pt = &spt->base;
+}
+
+void
+cell_texture_release(struct pipe_context *pipe, struct pipe_texture **pt)
+{
+ if (!*pt)
+ return;
+
+ /*
+ DBG("%s %p refcount will be %d\n",
+ __FUNCTION__, (void *) *pt, (*pt)->refcount - 1);
+ */
+ if (--(*pt)->refcount <= 0) {
+ struct cell_texture *spt = cell_texture(*pt);
+
+ /*
+ DBG("%s deleting %p\n", __FUNCTION__, (void *) spt);
+ */
+
+ pipe->winsys->buffer_reference(pipe->winsys, &spt->buffer, NULL);
+
+ FREE(spt);
+ }
+ *pt = NULL;
+}
+
+
+/**
+ * Called via pipe->get_tex_surface()
+ */
+struct pipe_surface *
+cell_get_tex_surface(struct pipe_context *pipe,
+ struct pipe_texture *pt,
+ unsigned face, unsigned level, unsigned zslice)
+{
+ struct cell_texture *spt = cell_texture(pt);
+ struct pipe_surface *ps;
+
+ ps = pipe->winsys->surface_alloc(pipe->winsys);
+ if (ps) {
+ assert(ps->refcount);
+ assert(ps->winsys);
+ pipe->winsys->buffer_reference(pipe->winsys, &ps->buffer, spt->buffer);
+ ps->format = pt->format;
+ ps->cpp = pt->cpp;
+ ps->width = pt->width[level];
+ ps->height = pt->height[level];
+ ps->pitch = ps->width;
+ ps->offset = spt->level_offset[level];
+
+ if (pt->target == PIPE_TEXTURE_CUBE || pt->target == PIPE_TEXTURE_3D) {
+ ps->offset += ((pt->target == PIPE_TEXTURE_CUBE) ? face : zslice) *
+ (pt->compressed ? ps->height/4 : ps->height) *
+ ps->width * ps->cpp;
+ } else {
+ assert(face == 0);
+ assert(zslice == 0);
+ }
+ }
+ return ps;
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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
+ * 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.
+ *
+ **************************************************************************/
+
+#ifndef CELL_TEXTURE_H
+#define CELL_TEXTURE_H
+
+
+struct pipe_context;
+struct pipe_texture;
+
+
+/**
+ * Subclass of pipe_texture
+ */
+struct cell_texture
+{
+ struct pipe_texture base;
+
+ unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS];
+
+ /* The data is held here:
+ */
+ struct pipe_buffer_handle *buffer;
+ unsigned long buffer_size;
+};
+
+
+/** cast wrapper */
+static INLINE struct cell_texture *
+cell_texture(struct pipe_texture *pt)
+{
+ return (struct cell_texture *) pt;
+}
+
+
+
+extern void
+cell_texture_create(struct pipe_context *pipe, struct pipe_texture **pt);
+
+extern void
+cell_texture_release(struct pipe_context *pipe, struct pipe_texture **pt);
+
+extern struct pipe_surface *
+cell_get_tex_surface(struct pipe_context *pipe,
+ struct pipe_texture *pt,
+ unsigned face, unsigned level, unsigned zslice);
+
+
+#endif /* CELL_TEXTURE */
projects / mesa.git / commitdiff