| /********************************************************** |
| * 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 "util/u_inlines.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_resource_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_resource *src, |
| unsigned offset, |
| unsigned nr, |
| unsigned index_size, |
| u_translate_func translate, |
| struct pipe_resource **out_buf ) |
| { |
| struct pipe_context *pipe = &hwtnl->svga->pipe; |
| struct pipe_transfer *src_transfer = NULL; |
| struct pipe_transfer *dst_transfer = NULL; |
| unsigned size = index_size * nr; |
| const void *src_map = NULL; |
| struct pipe_resource *dst = NULL; |
| void *dst_map = NULL; |
| |
| dst = pipe_buffer_create( pipe->screen, |
| PIPE_BIND_INDEX_BUFFER, |
| PIPE_USAGE_STATIC, |
| size ); |
| if (dst == NULL) |
| goto fail; |
| |
| src_map = pipe_buffer_map( pipe, src, PIPE_TRANSFER_READ, &src_transfer ); |
| if (src_map == NULL) |
| goto fail; |
| |
| dst_map = pipe_buffer_map( pipe, dst, PIPE_TRANSFER_WRITE, &dst_transfer ); |
| if (dst_map == NULL) |
| goto fail; |
| |
| translate( (const char *)src_map + offset, |
| nr, |
| dst_map ); |
| |
| pipe_buffer_unmap( pipe, src_transfer ); |
| pipe_buffer_unmap( pipe, dst_transfer ); |
| |
| *out_buf = dst; |
| return PIPE_OK; |
| |
| fail: |
| if (src_map) |
| pipe_buffer_unmap( pipe, src_transfer ); |
| |
| if (dst_map) |
| pipe_buffer_unmap( pipe, dst_transfer ); |
| |
| if (dst) |
| pipe->screen->resource_destroy( pipe->screen, dst ); |
| |
| return PIPE_ERROR_OUT_OF_MEMORY; |
| } |
| |
| |
| |
| |
| |
| enum pipe_error |
| svga_hwtnl_simple_draw_range_elements( struct svga_hwtnl *hwtnl, |
| struct pipe_resource *index_buffer, |
| unsigned index_size, |
| int index_bias, |
| unsigned min_index, |
| unsigned max_index, |
| unsigned prim, |
| unsigned start, |
| unsigned count ) |
| { |
| struct pipe_resource *upload_buffer = NULL; |
| SVGA3dPrimitiveRange range; |
| unsigned hw_prim; |
| unsigned hw_count; |
| unsigned index_offset = start * index_size; |
| enum pipe_error 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->width0 >= index_offset + count * index_size ); |
| |
| ret = u_upload_buffer( hwtnl->upload_ib, |
| 0, |
| index_offset, |
| count * index_size, |
| index_buffer, |
| &index_offset, |
| &upload_buffer); |
| if (ret != PIPE_OK) |
| 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 = index_bias; |
| |
| ret = svga_hwtnl_prim( hwtnl, &range, min_index, max_index, index_buffer ); |
| if (ret != PIPE_OK) |
| goto done; |
| |
| done: |
| if (upload_buffer) |
| pipe_resource_reference( &upload_buffer, NULL ); |
| |
| return ret; |
| } |
| |
| |
| |
| |
| enum pipe_error |
| svga_hwtnl_draw_range_elements( struct svga_hwtnl *hwtnl, |
| struct pipe_resource *index_buffer, |
| unsigned index_size, |
| int index_bias, |
| unsigned min_index, |
| unsigned max_index, |
| unsigned prim, unsigned start, unsigned count) |
| { |
| 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, |
| index_bias, |
| min_index, |
| max_index, |
| gen_prim, start, count ); |
| } |
| else { |
| struct pipe_resource *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 != PIPE_OK) |
| goto done; |
| |
| ret = svga_hwtnl_simple_draw_range_elements( hwtnl, |
| gen_buf, |
| gen_size, |
| index_bias, |
| min_index, |
| max_index, |
| gen_prim, |
| 0, |
| gen_nr ); |
| if (ret != PIPE_OK) |
| goto done; |
| |
| done: |
| if (gen_buf) |
| pipe_resource_reference( &gen_buf, NULL ); |
| |
| return ret; |
| } |
| } |
| |
| |
| |
| |
| |
