#include "brw_context.h"
#include "brw_eu.h"
-#include "shader/program.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 */
struct brw_vs_prog_key {
- GLuint program_string_id;
- GLuint nr_userclip:4;
+ struct brw_vec4_prog_key base;
+
+ /*
+ * Per-attribute workaround flags
+ */
+ uint8_t gl_attrib_wa_flags[VERT_ATTRIB_MAX];
+
GLuint copy_edgeflag:1;
- GLuint pad:26;
+
+ /**
+ * For pre-Gen6 hardware, a bitfield indicating which texture coordinates
+ * are going to be replaced with point coordinates (as a consequence of a
+ * call to glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE)). Because
+ * our SF thread requires exact matching between VS outputs and FS inputs,
+ * these texture coordinates will need to be unconditionally included in
+ * the VUE, even if they aren't written by the vertex shader.
+ */
+ GLuint point_coord_replace:8;
};
struct brw_vs_compile {
- struct brw_compile func;
+ struct brw_vec4_compile base;
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 nr_outputs;
- GLuint first_overflow_output; /**< VERT_ATTRIB_x */
-
- 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];
+#ifdef __cplusplus
+extern "C" {
+#endif
- struct brw_reg userplane[6];
+const unsigned *brw_vs_emit(struct brw_context *brw,
+ struct gl_shader_program *prog,
+ struct brw_vs_compile *c,
+ struct brw_vs_prog_data *prog_data,
+ void *mem_ctx,
+ unsigned *program_size);
+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);
+bool brw_vs_prog_data_compare(const void *a, const void *b,
+ int aux_size, const void *key);
+void brw_vs_prog_data_free(const void *in_prog_data);
+
+#ifdef __cplusplus
+} /* extern "C" */
+
+
+namespace brw {
+
+class vec4_vs_visitor : public vec4_visitor
+{
+public:
+ vec4_vs_visitor(struct brw_context *brw,
+ struct brw_vs_compile *vs_compile,
+ struct brw_vs_prog_data *vs_prog_data,
+ struct gl_shader_program *prog,
+ struct brw_shader *shader,
+ void *mem_ctx);
+
+protected:
+ virtual dst_reg *make_reg_for_system_value(ir_variable *ir);
+ virtual void setup_payload();
+ virtual void emit_prolog();
+ virtual void emit_program_code();
+ virtual void emit_thread_end();
+ virtual void emit_urb_write_header(int mrf);
+ virtual vec4_instruction *emit_urb_write_opcode(bool complete);
+
+private:
+ int setup_attributes(int payload_reg);
+ void setup_vp_regs();
+ dst_reg get_vp_dst_reg(const prog_dst_register &dst);
+ src_reg get_vp_src_reg(const prog_src_register &src);
+
+ struct brw_vs_compile * const vs_compile;
+ struct brw_vs_prog_data * const vs_prog_data;
+ src_reg *vp_temp_regs;
+ src_reg vp_addr_reg;
+};
- /** we may need up to 3 constants per instruction (if use_const_buffer) */
- struct {
- GLint index;
- struct brw_reg reg;
- } current_const[3];
+} /* namespace brw */
- GLboolean needs_stack;
-};
-void brw_vs_emit( struct brw_vs_compile *c );
+#endif
#endif
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