| /********************************************************** |
| * 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. |
| * |
| **********************************************************/ |
| |
| #ifndef SVGA_DRAW_H_ |
| #define SVGA_DRAW_H_ |
| |
| #include "pipe/p_compiler.h" |
| #include "pipe/p_defines.h" |
| #include "indices/u_indices.h" |
| #include "svga_hw_reg.h" |
| #include "svga3d_shaderdefs.h" |
| |
| struct svga_context; |
| struct u_upload_mgr; |
| |
| /* Should include polygon? |
| */ |
| static const unsigned svga_hw_prims = |
| ((1 << PIPE_PRIM_POINTS) | |
| (1 << PIPE_PRIM_LINES) | |
| (1 << PIPE_PRIM_LINE_STRIP) | |
| (1 << PIPE_PRIM_TRIANGLES) | |
| (1 << PIPE_PRIM_TRIANGLE_STRIP) | |
| (1 << PIPE_PRIM_TRIANGLE_FAN)); |
| |
| |
| static INLINE unsigned svga_translate_prim(unsigned mode, |
| unsigned count, |
| unsigned *out_count) |
| { |
| switch (mode) { |
| case PIPE_PRIM_POINTS: |
| *out_count = count; |
| return SVGA3D_PRIMITIVE_POINTLIST; |
| |
| case PIPE_PRIM_LINES: |
| *out_count = count / 2; |
| return SVGA3D_PRIMITIVE_LINELIST; |
| |
| case PIPE_PRIM_LINE_STRIP: |
| *out_count = count - 1; |
| return SVGA3D_PRIMITIVE_LINESTRIP; |
| |
| case PIPE_PRIM_TRIANGLES: |
| *out_count = count / 3; |
| return SVGA3D_PRIMITIVE_TRIANGLELIST; |
| |
| case PIPE_PRIM_TRIANGLE_STRIP: |
| *out_count = count - 2; |
| return SVGA3D_PRIMITIVE_TRIANGLESTRIP; |
| |
| case PIPE_PRIM_TRIANGLE_FAN: |
| *out_count = count - 2; |
| return SVGA3D_PRIMITIVE_TRIANGLEFAN; |
| |
| default: |
| assert(0); |
| *out_count = 0; |
| return 0; |
| } |
| } |
| |
| |
| struct index_cache { |
| u_generate_func generate; |
| unsigned gen_nr; |
| |
| /* If non-null, this buffer is filled by calling |
| * generate(nr, map(buffer)) |
| */ |
| struct pipe_resource *buffer; |
| }; |
| |
| |
| /** Max number of primitives per draw call */ |
| #define QSZ SVGA3D_MAX_DRAW_PRIMITIVE_RANGES |
| |
| struct draw_cmd { |
| struct svga_winsys_context *swc; |
| |
| SVGA3dVertexDecl vdecl[SVGA3D_INPUTREG_MAX]; |
| struct pipe_resource *vdecl_vb[SVGA3D_INPUTREG_MAX]; |
| unsigned vdecl_count; |
| |
| SVGA3dPrimitiveRange prim[QSZ]; |
| struct pipe_resource *prim_ib[QSZ]; |
| unsigned prim_count; |
| unsigned min_index[QSZ]; |
| unsigned max_index[QSZ]; |
| }; |
| |
| #define IDX_CACHE_MAX 8 |
| |
| struct svga_hwtnl { |
| struct svga_context *svga; |
| struct u_upload_mgr *upload_ib; |
| |
| /* Additional negative index bias due to partial buffer uploads |
| * This is compensated for in the offset associated with all |
| * vertex buffers. |
| */ |
| |
| int index_bias; |
| |
| /* Flatshade information: |
| */ |
| unsigned api_pv; |
| unsigned hw_pv; |
| unsigned api_fillmode; |
| |
| /* Cache the results of running a particular generate func on each |
| * primitive type. |
| */ |
| struct index_cache index_cache[PIPE_PRIM_MAX][IDX_CACHE_MAX]; |
| |
| /* Try to build the maximal draw command packet before emitting: |
| */ |
| struct draw_cmd cmd; |
| }; |
| |
| |
| |
| /*********************************************************************** |
| * Internal functions |
| */ |
| enum pipe_error |
| svga_hwtnl_prim( struct svga_hwtnl *hwtnl, |
| const SVGA3dPrimitiveRange *range, |
| unsigned min_index, |
| unsigned max_index, |
| struct pipe_resource *ib ); |
| |
| enum pipe_error |
| svga_hwtnl_simple_draw_range_elements( struct svga_hwtnl *hwtnl, |
| struct pipe_resource *indexBuffer, |
| unsigned index_size, |
| int index_bias, |
| unsigned min_index, |
| unsigned max_index, |
| unsigned prim, |
| unsigned start, |
| unsigned count ); |
| |
| |
| #endif |