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-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_surface.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_surface.c b/src/gallium/drivers/llvmpipe/lp_state_surface.c
new file mode 100644
index 0000000000..177a26b7b1
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_state_surface.c
@@ -0,0 +1,106 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+/* Authors: Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "lp_context.h"
+#include "lp_state.h"
+#include "lp_surface.h"
+#include "lp_tile_cache.h"
+
+#include "draw/draw_context.h"
+
+
+/**
+ * XXX this might get moved someday
+ * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
+ * Here, we flush the old surfaces and update the tile cache to point to the new
+ * surfaces.
+ */
+void
+llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
+ const struct pipe_framebuffer_state *fb)
+{
+ struct llvmpipe_context *lp = llvmpipe_context(pipe);
+ uint i;
+
+ for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
+ /* check if changing cbuf */
+ if (lp->framebuffer.cbufs[i] != fb->cbufs[i]) {
+ /* flush old */
+ lp_flush_tile_cache(lp->cbuf_cache[i]);
+
+ /* assign new */
+ lp->framebuffer.cbufs[i] = fb->cbufs[i];
+
+ /* update cache */
+ lp_tile_cache_set_surface(lp->cbuf_cache[i], fb->cbufs[i]);
+ }
+ }
+
+ lp->framebuffer.nr_cbufs = fb->nr_cbufs;
+
+ /* zbuf changing? */
+ if (lp->framebuffer.zsbuf != fb->zsbuf) {
+
+ if(lp->zsbuf_transfer) {
+ struct pipe_screen *screen = pipe->screen;
+
+ if(lp->zsbuf_map) {
+ screen->transfer_unmap(screen, lp->zsbuf_transfer);
+ lp->zsbuf_map = NULL;
+ }
+
+ screen->tex_transfer_destroy(lp->zsbuf_transfer);
+ lp->zsbuf_transfer = NULL;
+ }
+
+ /* assign new */
+ lp->framebuffer.zsbuf = fb->zsbuf;
+
+ /* Tell draw module how deep the Z/depth buffer is */
+ if (lp->framebuffer.zsbuf) {
+ int depth_bits;
+ double mrd;
+ depth_bits = pf_get_component_bits(lp->framebuffer.zsbuf->format,
+ PIPE_FORMAT_COMP_Z);
+ if (depth_bits > 16) {
+ mrd = 0.0000001;
+ }
+ else {
+ mrd = 0.00002;
+ }
+ draw_set_mrd(lp->draw, mrd);
+ }
+ }
+
+ lp->framebuffer.width = fb->width;
+ lp->framebuffer.height = fb->height;
+
+ lp->dirty |= LP_NEW_FRAMEBUFFER;
+}