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Diffstat (limited to 'src/gallium/drivers/i965simple/brw_surface.c')
-rw-r--r--src/gallium/drivers/i965simple/brw_surface.c210
1 files changed, 210 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_surface.c b/src/gallium/drivers/i965simple/brw_surface.c
new file mode 100644
index 0000000000..518845e4b2
--- /dev/null
+++ b/src/gallium/drivers/i965simple/brw_surface.c
@@ -0,0 +1,210 @@
+/**************************************************************************
+ *
+ * Copyright 2003 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.
+ *
+ **************************************************************************/
+
+#include "brw_blit.h"
+#include "brw_context.h"
+#include "brw_state.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_winsys.h"
+#include "pipe/util/p_tile.h"
+
+
+/*
+ * XXX note: same as code in sp_surface.c
+ */
+static struct pipe_surface *
+brw_get_tex_surface(struct pipe_context *pipe,
+ struct pipe_texture *pt,
+ unsigned face, unsigned level, unsigned zslice)
+{
+ struct brw_texture *tex = (struct brw_texture *)pt;
+ struct pipe_surface *ps;
+ unsigned offset; /* in bytes */
+
+ offset = tex->level_offset[level];
+
+ if (pt->target == PIPE_TEXTURE_CUBE) {
+ offset += tex->image_offset[level][face] * pt->cpp;
+ }
+ else if (pt->target == PIPE_TEXTURE_3D) {
+ offset += tex->image_offset[level][zslice] * pt->cpp;
+ }
+ else {
+ assert(face == 0);
+ assert(zslice == 0);
+ }
+
+ ps = pipe->winsys->surface_alloc(pipe->winsys);
+ if (ps) {
+ assert(ps->format);
+ assert(ps->refcount);
+ pipe_buffer_reference(pipe->winsys, &ps->buffer, tex->buffer);
+ ps->format = pt->format;
+ ps->cpp = pt->cpp;
+ ps->width = pt->width[level];
+ ps->height = pt->height[level];
+ ps->pitch = tex->pitch;
+ ps->offset = offset;
+ }
+ return ps;
+}
+
+
+/* Upload data to a rectangular sub-region. Lots of choices how to do this:
+ *
+ * - memcpy by span to current destination
+ * - upload data as new buffer and blit
+ *
+ * Currently always memcpy.
+ */
+static void
+brw_surface_data(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ const void *src, unsigned src_pitch,
+ unsigned srcx, unsigned srcy, unsigned width, unsigned height)
+{
+ pipe_copy_rect(pipe_surface_map(dst) + dst->offset,
+ dst->cpp, dst->pitch,
+ dstx, dsty, width, height, src, src_pitch, srcx, srcy);
+
+ pipe_surface_unmap(dst);
+}
+
+
+/* Assumes all values are within bounds -- no checking at this level -
+ * do it higher up if required.
+ */
+static void
+brw_surface_copy(struct pipe_context *pipe,
+ unsigned do_flip,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ struct pipe_surface *src,
+ unsigned srcx, unsigned srcy, unsigned width, unsigned height)
+{
+ assert(dst != src);
+ assert(dst->cpp == src->cpp);
+
+ if (0) {
+ pipe_copy_rect(pipe_surface_map(dst) + dst->offset,
+ dst->cpp,
+ dst->pitch,
+ dstx, dsty,
+ width, height,
+ pipe_surface_map(src) + src->offset,
+ do_flip ? -src->pitch : src->pitch,
+ srcx, do_flip ? 1 - srcy - height : srcy);
+
+ pipe_surface_unmap(src);
+ pipe_surface_unmap(dst);
+ }
+ else {
+ brw_copy_blit(brw_context(pipe),
+ do_flip,
+ dst->cpp,
+ (short) src->pitch, src->buffer, src->offset, FALSE,
+ (short) dst->pitch, dst->buffer, dst->offset, FALSE,
+ (short) srcx, (short) srcy, (short) dstx, (short) dsty,
+ (short) width, (short) height, PIPE_LOGICOP_COPY);
+ }
+}
+
+/* Fill a rectangular sub-region. Need better logic about when to
+ * push buffers into AGP - will currently do so whenever possible.
+ */
+static void *
+get_pointer(struct pipe_surface *dst, void *dst_map, unsigned x, unsigned y)
+{
+ return (char *)dst_map + (y * dst->pitch + x) * dst->cpp;
+}
+
+
+static void
+brw_surface_fill(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ unsigned width, unsigned height, unsigned value)
+{
+ if (0) {
+ unsigned i, j;
+ void *dst_map = pipe_surface_map(dst);
+
+ switch (dst->cpp) {
+ case 1: {
+ ubyte *row = get_pointer(dst, dst_map, dstx, dsty);
+ for (i = 0; i < height; i++) {
+ memset(row, value, width);
+ row += dst->pitch;
+ }
+ }
+ break;
+ case 2: {
+ ushort *row = get_pointer(dst, dst_map, dstx, dsty);
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++)
+ row[j] = (ushort) value;
+ row += dst->pitch;
+ }
+ }
+ break;
+ case 4: {
+ unsigned *row = get_pointer(dst, dst_map, dstx, dsty);
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++)
+ row[j] = value;
+ row += dst->pitch;
+ }
+ }
+ break;
+ default:
+ assert(0);
+ break;
+ }
+
+ pipe_surface_unmap( dst );
+ }
+ else {
+ brw_fill_blit(brw_context(pipe),
+ dst->cpp,
+ (short) dst->pitch,
+ dst->buffer, dst->offset, FALSE,
+ (short) dstx, (short) dsty,
+ (short) width, (short) height,
+ value);
+ }
+}
+
+void
+brw_init_surface_functions(struct brw_context *brw)
+{
+ brw->pipe.get_tex_surface = brw_get_tex_surface;
+ brw->pipe.surface_copy = brw_surface_copy;
+ brw->pipe.surface_fill = brw_surface_fill;
+}