| /* |
| Copyright (C) Intel Corp. 2006. All Rights Reserved. |
| Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to |
| develop this 3D driver. |
| |
| 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 (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 NONINFRINGEMENT. |
| IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. |
| |
| **********************************************************************/ |
| /* |
| * Authors: |
| * Keith Whitwell <keith@tungstengraphics.com> |
| */ |
| |
| |
| #ifndef BRW_VS_H |
| #define BRW_VS_H |
| |
| |
| #include "brw_context.h" |
| #include "brw_eu.h" |
| #include "brw_program.h" |
| #include "program/program.h" |
| |
| |
| struct brw_vs_prog_key { |
| GLuint program_string_id; |
| /** |
| * Number of channels of the vertex attribute that need GL_FIXED rescaling |
| */ |
| uint8_t gl_fixed_input_size[VERT_ATTRIB_MAX]; |
| |
| /** |
| * True if at least one clip flag is enabled, regardless of whether the |
| * shader uses clip planes or gl_ClipDistance. |
| */ |
| GLuint userclip_active:1; |
| |
| /** |
| * How many user clipping planes are being uploaded to the vertex shader as |
| * push constants. |
| */ |
| GLuint nr_userclip_plane_consts:4; |
| |
| /** |
| * True if the shader uses gl_ClipDistance, regardless of whether any clip |
| * flags are enabled. |
| */ |
| GLuint uses_clip_distance:1; |
| |
| /** |
| * For pre-Gen6 hardware, a bitfield indicating which clipping planes are |
| * enabled. This is used to compact clip planes. |
| * |
| * For Gen6 and later hardware, clip planes are not compacted, so this |
| * value is zero to avoid provoking unnecessary shader recompiles. |
| */ |
| GLuint userclip_planes_enabled_gen_4_5:MAX_CLIP_PLANES; |
| |
| GLuint copy_edgeflag:1; |
| GLuint point_coord_replace:8; |
| GLuint clamp_vertex_color:1; |
| |
| struct brw_sampler_prog_key_data tex; |
| }; |
| |
| |
| struct brw_vs_compile { |
| struct brw_compile func; |
| struct brw_vs_prog_key key; |
| struct brw_vs_prog_data prog_data; |
| int8_t constant_map[1024]; |
| |
| struct brw_vertex_program *vp; |
| |
| GLuint nr_inputs; |
| |
| GLuint first_output; |
| GLuint last_scratch; /**< measured in 32-byte (register size) units */ |
| |
| GLuint first_tmp; |
| GLuint last_tmp; |
| |
| struct brw_reg r0; |
| struct brw_reg r1; |
| struct brw_reg regs[PROGRAM_ADDRESS+1][128]; |
| struct brw_reg tmp; |
| |
| struct { |
| bool used_in_src; |
| struct brw_reg reg; |
| } output_regs[128]; |
| |
| struct brw_reg userplane[MAX_CLIP_PLANES]; |
| |
| /** we may need up to 3 constants per instruction (if use_const_buffer) */ |
| struct { |
| GLint index; |
| struct brw_reg reg; |
| } current_const[3]; |
| }; |
| |
| bool brw_vs_emit(struct gl_shader_program *prog, struct brw_vs_compile *c); |
| void brw_old_vs_emit(struct brw_vs_compile *c); |
| bool brw_vs_precompile(struct gl_context *ctx, struct gl_shader_program *prog); |
| void brw_vs_debug_recompile(struct brw_context *brw, |
| struct gl_shader_program *prog, |
| const struct brw_vs_prog_key *key); |
| |
| #endif |