/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ 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
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.
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>
+ * Keith Whitwell <keithw@vmware.com>
*/
-
+
#ifndef BRW_VS_H
#define BRW_VS_H
#include "brw_context.h"
#include "brw_eu.h"
+#include "brw_vec4.h"
#include "program/program.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
-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];
- GLuint nr_userclip:4;
- GLuint copy_edgeflag:1;
- GLuint point_coord_replace:8;
- GLuint clamp_vertex_color:1;
- GLuint uses_clip_distance:1;
+const unsigned *brw_vs_emit(struct brw_context *brw,
+ void *mem_ctx,
+ const struct brw_vs_prog_key *key,
+ struct brw_vs_prog_data *prog_data,
+ struct gl_vertex_program *vp,
+ struct gl_shader_program *shader_prog,
+ unsigned *program_size);
+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_vertex_program *vp,
+ 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,
+ 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,
+ const glsl_type *type);
+ 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 */
-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;
-
- struct brw_vue_map vue_map;
- GLuint first_output;
- GLuint last_scratch;
- 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 brw_reg stack;
-
- struct {
- GLboolean 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];
-
- GLboolean needs_stack;
-};
-
-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);
+#endif
#endif