| /* |
| Copyright (C) Intel Corp. 2006. All Rights Reserved. |
| Intel funded Tungsten Graphics 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 <keithw@vmware.com> |
| */ |
| |
| |
| #ifndef BRW_VS_H |
| #define BRW_VS_H |
| |
| |
| #include "brw_vec4.h" |
| |
| /** |
| * The VF can't natively handle certain types of attributes, such as GL_FIXED |
| * or most 10_10_10_2 types. These flags enable various VS workarounds to |
| * "fix" attributes at the beginning of shaders. |
| */ |
| #define BRW_ATTRIB_WA_COMPONENT_MASK 7 /* mask for GL_FIXED scale channel count */ |
| #define BRW_ATTRIB_WA_NORMALIZE 8 /* normalize in shader */ |
| #define BRW_ATTRIB_WA_BGRA 16 /* swap r/b channels in shader */ |
| #define BRW_ATTRIB_WA_SIGN 32 /* interpret as signed in shader */ |
| #define BRW_ATTRIB_WA_SCALE 64 /* interpret as scaled in shader */ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| GLbitfield64 |
| brw_vs_outputs_written(struct brw_context *brw, struct brw_vs_prog_key *key, |
| GLbitfield64 outputs_written); |
| |
| void brw_vs_debug_recompile(struct brw_context *brw, |
| struct gl_shader_program *prog, |
| const struct brw_vs_prog_key *key); |
| |
| void |
| brw_upload_vs_prog(struct brw_context *brw); |
| |
| bool |
| brw_codegen_vs_prog(struct brw_context *brw, |
| struct gl_shader_program *prog, |
| struct brw_program *vp, |
| struct brw_vs_prog_key *key); |
| |
| void |
| brw_vs_populate_key(struct brw_context *brw, |
| struct brw_vs_prog_key *key); |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| |
| |
| namespace brw { |
| |
| class vec4_vs_visitor : public vec4_visitor |
| { |
| public: |
| vec4_vs_visitor(const struct brw_compiler *compiler, |
| void *log_data, |
| const struct brw_vs_prog_key *key, |
| struct brw_vs_prog_data *vs_prog_data, |
| const nir_shader *shader, |
| gl_clip_plane *clip_planes, |
| void *mem_ctx, |
| int shader_time_index, |
| bool use_legacy_snorm_formula); |
| |
| protected: |
| virtual dst_reg *make_reg_for_system_value(int location); |
| virtual void setup_payload(); |
| virtual void emit_prolog(); |
| virtual void emit_thread_end(); |
| virtual void emit_urb_write_header(int mrf); |
| virtual void emit_urb_slot(dst_reg reg, int varying); |
| virtual vec4_instruction *emit_urb_write_opcode(bool complete); |
| |
| private: |
| int setup_attributes(int payload_reg); |
| void setup_uniform_clipplane_values(); |
| void emit_clip_distances(dst_reg reg, int offset); |
| |
| const struct brw_vs_prog_key *const key; |
| struct brw_vs_prog_data * const vs_prog_data; |
| |
| gl_clip_plane *clip_planes; |
| |
| bool use_legacy_snorm_formula; |
| }; |
| |
| } /* namespace brw */ |
| |
| |
| #endif |
| |
| #endif |