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authorJosé Fonseca <jfonseca@vmware.com>2010-01-08 15:42:57 +0000
committerJosé Fonseca <jfonseca@vmware.com>2010-01-08 15:42:57 +0000
commit080c40ab32b2abd6d8381b4a0cc143d36a1652b2 (patch)
treee173767ebc5a82d81b9fc086449d915e29348976 /src/gallium/drivers/i965/brw_pipe_clear.c
parent9cdf6f025b2ed55cfb13dd09f870f01d0c7947d3 (diff)
parenta1de400e8de06a80ab140bb0fa950e990607572d (diff)
Merge remote branch 'origin/master' into lp-binning
Conflicts: src/gallium/auxiliary/util/u_surface.c src/gallium/drivers/llvmpipe/Makefile src/gallium/drivers/llvmpipe/SConscript src/gallium/drivers/llvmpipe/lp_bld_arit.c src/gallium/drivers/llvmpipe/lp_bld_flow.c src/gallium/drivers/llvmpipe/lp_bld_interp.c src/gallium/drivers/llvmpipe/lp_clear.c src/gallium/drivers/llvmpipe/lp_context.c src/gallium/drivers/llvmpipe/lp_context.h src/gallium/drivers/llvmpipe/lp_draw_arrays.c src/gallium/drivers/llvmpipe/lp_jit.c src/gallium/drivers/llvmpipe/lp_jit.h src/gallium/drivers/llvmpipe/lp_prim_vbuf.c src/gallium/drivers/llvmpipe/lp_setup.c src/gallium/drivers/llvmpipe/lp_setup_point.c src/gallium/drivers/llvmpipe/lp_state.h src/gallium/drivers/llvmpipe/lp_state_blend.c src/gallium/drivers/llvmpipe/lp_state_derived.c src/gallium/drivers/llvmpipe/lp_state_fs.c src/gallium/drivers/llvmpipe/lp_state_sampler.c src/gallium/drivers/llvmpipe/lp_state_surface.c src/gallium/drivers/llvmpipe/lp_tex_cache.c src/gallium/drivers/llvmpipe/lp_tex_cache.h src/gallium/drivers/llvmpipe/lp_tex_sample.h src/gallium/drivers/llvmpipe/lp_tile_cache.c
Diffstat (limited to 'src/gallium/drivers/i965/brw_pipe_clear.c')
-rw-r--r--src/gallium/drivers/i965/brw_pipe_clear.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_pipe_clear.c b/src/gallium/drivers/i965/brw_pipe_clear.c
new file mode 100644
index 0000000000..452e1e89f9
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_pipe_clear.c
@@ -0,0 +1,218 @@
+/**************************************************************************
+ *
+ * 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 "util/u_pack_color.h"
+
+#include "pipe/p_state.h"
+
+#include "brw_batchbuffer.h"
+#include "brw_screen.h"
+#include "brw_context.h"
+
+#define MASK16 0xffff
+#define MASK24 0xffffff
+
+
+/**
+ * Use blitting to clear the renderbuffers named by 'flags'.
+ * Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferIndexes field
+ * since that might include software renderbuffers or renderbuffers
+ * which we're clearing with triangles.
+ * \param mask bitmask of BUFFER_BIT_* values indicating buffers to clear
+ */
+static enum pipe_error
+try_clear( struct brw_context *brw,
+ struct brw_surface *surface,
+ unsigned value )
+{
+ uint32_t BR13, CMD;
+ int x1 = 0;
+ int y1 = 0;
+ int x2 = surface->base.width;
+ int y2 = surface->base.height;
+ int pitch = surface->pitch;
+ int cpp = surface->cpp;
+
+ if (x2 == 0 || y2 == 0)
+ return 0;
+
+ debug_printf("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
+ __FUNCTION__,
+ (void *)surface->bo, pitch * cpp,
+ surface->base.offset,
+ x1, y1, x2 - x1, y2 - y1);
+
+ BR13 = 0xf0 << 16;
+ CMD = XY_COLOR_BLT_CMD | XY_BLT_WRITE_RGB | XY_BLT_WRITE_ALPHA;
+
+ /* Setup the blit command */
+ if (cpp == 4) {
+ BR13 |= BR13_8888;
+ CMD |= XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB;
+ }
+ else {
+ assert(cpp == 2);
+ BR13 |= BR13_565;
+ }
+
+ /* XXX: nasty hack for clearing depth buffers
+ */
+ if (surface->tiling == BRW_TILING_Y) {
+ x2 = pitch;
+ }
+
+ if (surface->tiling == BRW_TILING_X) {
+ CMD |= XY_DST_TILED;
+ pitch /= 4;
+ }
+
+ BR13 |= (pitch * cpp);
+
+ BEGIN_BATCH(6, 0);
+ OUT_BATCH(CMD);
+ OUT_BATCH(BR13);
+ OUT_BATCH((y1 << 16) | x1);
+ OUT_BATCH((y2 << 16) | x2);
+ OUT_RELOC(surface->bo,
+ BRW_USAGE_BLIT_DEST,
+ surface->base.offset);
+ OUT_BATCH(value);
+ ADVANCE_BATCH();
+
+ return 0;
+}
+
+
+
+
+static void color_clear(struct brw_context *brw,
+ struct brw_surface *bsurface,
+ const float *rgba )
+{
+ enum pipe_error ret;
+ union util_color value;
+
+ util_pack_color( rgba, bsurface->base.format, &value );
+
+ if (bsurface->cpp == 2)
+ value.ui |= value.ui << 16;
+
+ ret = try_clear( brw, bsurface, value.ui );
+
+ if (ret != 0) {
+ brw_context_flush( brw );
+ ret = try_clear( brw, bsurface, value.ui );
+ assert( ret == 0 );
+ }
+}
+
+static void zstencil_clear(struct brw_context *brw,
+ struct brw_surface *bsurface,
+ double depth,
+ unsigned stencil )
+{
+ enum pipe_error ret;
+ unsigned value;
+
+ switch (bsurface->base.format) {
+ case PIPE_FORMAT_X8Z24_UNORM:
+ case PIPE_FORMAT_S8Z24_UNORM:
+ value = ((unsigned)(depth * MASK24) & MASK24);
+ break;
+ case PIPE_FORMAT_Z16_UNORM:
+ value = ((unsigned)(depth * MASK16) & MASK16);
+ break;
+ default:
+ assert(0);
+ return;
+ }
+
+ switch (bsurface->base.format) {
+ case PIPE_FORMAT_X8Z24_UNORM:
+ case PIPE_FORMAT_S8Z24_UNORM:
+ value = value | (stencil << 24);
+ break;
+
+ case PIPE_FORMAT_Z16_UNORM:
+ value = value | (value << 16);
+ break;
+
+ default:
+ break;
+ }
+
+ ret = try_clear( brw, bsurface, value );
+
+ if (ret != 0) {
+ brw_context_flush( brw );
+ ret = try_clear( brw, bsurface, value );
+ assert( ret == 0 );
+ }
+}
+
+
+
+/**
+ * Clear the given surface to the specified value.
+ * No masking, no scissor (clear entire buffer).
+ */
+static void brw_clear(struct pipe_context *pipe,
+ unsigned buffers,
+ const float *rgba,
+ double depth,
+ unsigned stencil)
+{
+ struct brw_context *brw = brw_context( pipe );
+ int i;
+
+ if (buffers & PIPE_CLEAR_COLOR) {
+ for (i = 0; i < brw->curr.fb.nr_cbufs; i++) {
+ color_clear( brw,
+ brw_surface(brw->curr.fb.cbufs[i]),
+ rgba );
+ }
+ }
+
+ if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
+ if (brw->curr.fb.zsbuf) {
+ zstencil_clear( brw,
+ brw_surface(brw->curr.fb.zsbuf),
+ depth, stencil );
+ }
+ }
+}
+
+
+void brw_pipe_clear_init( struct brw_context *brw )
+{
+ brw->base.clear = brw_clear;
+}
+
+
+void brw_pipe_clear_cleanup( struct brw_context *brw )
+{
+}