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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/svga/svga_draw_elements.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/svga/svga_draw_elements.c')
-rw-r--r--src/gallium/drivers/svga/svga_draw_elements.c255
1 files changed, 255 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_draw_elements.c b/src/gallium/drivers/svga/svga_draw_elements.c
new file mode 100644
index 0000000000..167d817831
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_draw_elements.c
@@ -0,0 +1,255 @@
+/**********************************************************
+ * Copyright 2008-2009 VMware, Inc. 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, sublicense, 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 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
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * 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 "pipe/p_inlines.h"
+#include "util/u_prim.h"
+#include "util/u_upload_mgr.h"
+#include "indices/u_indices.h"
+
+#include "svga_cmd.h"
+#include "svga_draw.h"
+#include "svga_draw_private.h"
+#include "svga_screen_buffer.h"
+#include "svga_winsys.h"
+#include "svga_context.h"
+
+#include "svga_hw_reg.h"
+
+
+static enum pipe_error
+translate_indices( struct svga_hwtnl *hwtnl,
+ struct pipe_buffer *src,
+ unsigned offset,
+ unsigned nr,
+ unsigned index_size,
+ u_translate_func translate,
+ struct pipe_buffer **out_buf )
+{
+ struct pipe_screen *screen = hwtnl->svga->pipe.screen;
+ unsigned size = index_size * nr;
+ const void *src_map = NULL;
+ struct pipe_buffer *dst = NULL;
+ void *dst_map = NULL;
+
+ dst = screen->buffer_create( screen, 32,
+ PIPE_BUFFER_USAGE_INDEX |
+ PIPE_BUFFER_USAGE_CPU_WRITE |
+ PIPE_BUFFER_USAGE_GPU_READ,
+ size );
+ if (dst == NULL)
+ goto fail;
+
+ src_map = pipe_buffer_map( screen, src, PIPE_BUFFER_USAGE_CPU_READ );
+ if (src_map == NULL)
+ goto fail;
+
+ dst_map = pipe_buffer_map( screen, dst, PIPE_BUFFER_USAGE_CPU_WRITE );
+ if (dst_map == NULL)
+ goto fail;
+
+ translate( (const char *)src_map + offset,
+ nr,
+ dst_map );
+
+ pipe_buffer_unmap( screen, src );
+ pipe_buffer_unmap( screen, dst );
+
+ *out_buf = dst;
+ return PIPE_OK;
+
+fail:
+ if (src_map)
+ screen->buffer_unmap( screen, src );
+
+ if (dst_map)
+ screen->buffer_unmap( screen, dst );
+
+ if (dst)
+ screen->buffer_destroy( dst );
+
+ return PIPE_ERROR_OUT_OF_MEMORY;
+}
+
+
+
+
+
+enum pipe_error
+svga_hwtnl_simple_draw_range_elements( struct svga_hwtnl *hwtnl,
+ struct pipe_buffer *index_buffer,
+ unsigned index_size,
+ unsigned min_index,
+ unsigned max_index,
+ unsigned prim,
+ unsigned start,
+ unsigned count,
+ unsigned bias )
+{
+ struct pipe_buffer *upload_buffer = NULL;
+ SVGA3dPrimitiveRange range;
+ unsigned hw_prim;
+ unsigned hw_count;
+ unsigned index_offset = start * index_size;
+ int ret = PIPE_OK;
+
+ hw_prim = svga_translate_prim(prim, count, &hw_count);
+ if (hw_count == 0)
+ goto done;
+
+ if (index_buffer &&
+ svga_buffer_is_user_buffer(index_buffer))
+ {
+ assert( index_buffer->size >= index_offset + count * index_size );
+
+ ret = u_upload_buffer( hwtnl->upload_ib,
+ index_offset,
+ count * index_size,
+ index_buffer,
+ &index_offset,
+ &upload_buffer );
+ if (ret)
+ goto done;
+
+ /* Don't need to worry about refcounting index_buffer as this is
+ * just a stack variable without a counted reference of its own.
+ * The caller holds the reference.
+ */
+ index_buffer = upload_buffer;
+ }
+
+ range.primType = hw_prim;
+ range.primitiveCount = hw_count;
+ range.indexArray.offset = index_offset;
+ range.indexArray.stride = index_size;
+ range.indexWidth = index_size;
+ range.indexBias = bias;
+
+ ret = svga_hwtnl_prim( hwtnl, &range, min_index, max_index, index_buffer );
+ if (ret)
+ goto done;
+
+done:
+ if (upload_buffer)
+ pipe_buffer_reference( &upload_buffer, NULL );
+
+ return ret;
+}
+
+
+
+
+enum pipe_error
+svga_hwtnl_draw_range_elements( struct svga_hwtnl *hwtnl,
+ struct pipe_buffer *index_buffer,
+ unsigned index_size,
+ unsigned min_index,
+ unsigned max_index,
+ unsigned prim, unsigned start, unsigned count,
+ unsigned bias)
+{
+ unsigned gen_prim, gen_size, gen_nr, gen_type;
+ u_translate_func gen_func;
+ enum pipe_error ret = PIPE_OK;
+
+ if (hwtnl->api_fillmode != PIPE_POLYGON_MODE_FILL &&
+ prim >= PIPE_PRIM_TRIANGLES)
+ {
+ gen_type = u_unfilled_translator( prim,
+ index_size,
+ count,
+ hwtnl->api_fillmode,
+ &gen_prim,
+ &gen_size,
+ &gen_nr,
+ &gen_func );
+ }
+ else
+ {
+ gen_type = u_index_translator( svga_hw_prims,
+ prim,
+ index_size,
+ count,
+ hwtnl->api_pv,
+ hwtnl->hw_pv,
+ &gen_prim,
+ &gen_size,
+ &gen_nr,
+ &gen_func );
+ }
+
+
+ if (gen_type == U_TRANSLATE_MEMCPY) {
+ /* No need for translation, just pass through to hardware:
+ */
+ return svga_hwtnl_simple_draw_range_elements( hwtnl, index_buffer,
+ index_size,
+ min_index,
+ max_index,
+ gen_prim, start, count, bias );
+ }
+ else {
+ struct pipe_buffer *gen_buf = NULL;
+
+ /* Need to allocate a new index buffer and run the translate
+ * func to populate it. Could potentially cache this translated
+ * index buffer with the original to avoid future
+ * re-translations. Not much point if we're just accelerating
+ * GL though, as index buffers are typically used only once
+ * there.
+ */
+ ret = translate_indices( hwtnl,
+ index_buffer,
+ start * index_size,
+ gen_nr,
+ gen_size,
+ gen_func,
+ &gen_buf );
+ if (ret)
+ goto done;
+
+ ret = svga_hwtnl_simple_draw_range_elements( hwtnl,
+ gen_buf,
+ gen_size,
+ min_index,
+ max_index,
+ gen_prim,
+ 0,
+ gen_nr,
+ bias );
+ if (ret)
+ goto done;
+
+ done:
+ if (gen_buf)
+ pipe_buffer_reference( &gen_buf, NULL );
+
+ return ret;
+ }
+}
+
+
+
+
+