diff options
Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_exec.h')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_exec.h | 75 |
1 files changed, 67 insertions, 8 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h index c72f76809d4..59e3b445cc3 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.h +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h @@ -2,6 +2,7 @@ * * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. + * Copyright 2009-2010 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 @@ -35,11 +36,13 @@ extern "C" { #endif + #define MAX_LABELS (4 * 1024) /**< basically, max instructions */ #define NUM_CHANNELS 4 /* R,G,B,A */ #define QUAD_SIZE 4 /* 4 pixel/quad */ + /** * Registers may be treated as float, signed int or unsigned int. */ @@ -69,6 +72,11 @@ struct tgsi_interp_coef float dady[NUM_CHANNELS]; }; +enum tgsi_sampler_control { + tgsi_sampler_lod_bias, + tgsi_sampler_lod_explicit +}; + /** * Information for sampling textures, which must be implemented * by code outside the TGSI executor. @@ -80,7 +88,8 @@ struct tgsi_sampler const float s[QUAD_SIZE], const float t[QUAD_SIZE], const float p[QUAD_SIZE], - float lodbias, + const float c0[QUAD_SIZE], + enum tgsi_sampler_control control, float rgba[NUM_CHANNELS][QUAD_SIZE]); }; @@ -168,13 +177,19 @@ struct tgsi_exec_labels #define TGSI_EXEC_TEMP_ADDR (TGSI_EXEC_NUM_TEMPS + 8) #define TGSI_EXEC_NUM_ADDRS 1 -#define TGSI_EXEC_NUM_TEMP_EXTRAS 9 +/* predicate register */ +#define TGSI_EXEC_TEMP_P0 (TGSI_EXEC_NUM_TEMPS + 9) +#define TGSI_EXEC_NUM_PREDS 1 + +#define TGSI_EXEC_NUM_TEMP_EXTRAS 10 -#define TGSI_EXEC_MAX_COND_NESTING 20 -#define TGSI_EXEC_MAX_LOOP_NESTING 20 -#define TGSI_EXEC_MAX_CALL_NESTING 20 + +#define TGSI_EXEC_MAX_COND_NESTING 32 +#define TGSI_EXEC_MAX_LOOP_NESTING 32 +#define TGSI_EXEC_MAX_SWITCH_NESTING 32 +#define TGSI_EXEC_MAX_CALL_NESTING 32 /* The maximum number of input attributes per vertex. For 2D * input register files, this is the stride between two 1D @@ -186,6 +201,14 @@ struct tgsi_exec_labels */ #define TGSI_EXEC_MAX_CONST_BUFFER 4096 +/* The maximum number of vertices per primitive */ +#define TGSI_MAX_PRIM_VERTICES 6 + +/* The maximum number of primitives to be generated */ +#define TGSI_MAX_PRIMITIVES 64 + +/* The maximum total number of vertices */ +#define TGSI_MAX_TOTAL_VERTICES (TGSI_MAX_PRIM_VERTICES * TGSI_MAX_PRIMITIVES * PIPE_MAX_ATTRIBS) /** function call/activation record */ struct tgsi_call_record @@ -193,10 +216,29 @@ struct tgsi_call_record uint CondStackTop; uint LoopStackTop; uint ContStackTop; + int SwitchStackTop; + int BreakStackTop; uint ReturnAddr; }; +/* Switch-case block state. */ +struct tgsi_switch_record { + uint mask; /**< execution mask */ + union tgsi_exec_channel selector; /**< a value case statements are compared to */ + uint defaultMask; /**< non-execute mask for default case */ +}; + + +enum tgsi_break_type { + TGSI_EXEC_BREAK_INSIDE_LOOP, + TGSI_EXEC_BREAK_INSIDE_SWITCH +}; + + +#define TGSI_EXEC_MAX_BREAK_STACK (TGSI_EXEC_MAX_LOOP_NESTING + TGSI_EXEC_MAX_SWITCH_NESTING) + + /** * Run-time virtual machine state for executing TGSI shader. */ @@ -209,10 +251,11 @@ struct tgsi_exec_machine float Imms[TGSI_EXEC_NUM_IMMEDIATES][4]; - struct tgsi_exec_vector Inputs[PIPE_MAX_ATTRIBS]; - struct tgsi_exec_vector Outputs[PIPE_MAX_ATTRIBS]; + struct tgsi_exec_vector Inputs[TGSI_MAX_PRIM_VERTICES * PIPE_MAX_ATTRIBS]; + struct tgsi_exec_vector Outputs[TGSI_MAX_TOTAL_VERTICES]; struct tgsi_exec_vector *Addrs; + struct tgsi_exec_vector *Predicates; struct tgsi_sampler **Samplers; @@ -223,10 +266,13 @@ struct tgsi_exec_machine /* GEOMETRY processor only. */ unsigned *Primitives; + unsigned NumOutputs; + unsigned MaxGeometryShaderOutputs; /* FRAGMENT processor only. */ const struct tgsi_interp_coef *InterpCoefs; struct tgsi_exec_vector QuadPos; + float Face; /**< +1 if front facing, -1 if back facing */ /* Conditional execution masks */ uint CondMask; /**< For IF/ELSE/ENDIF */ @@ -235,6 +281,12 @@ struct tgsi_exec_machine uint FuncMask; /**< For function calls */ uint ExecMask; /**< = CondMask & LoopMask */ + /* Current switch-case state. */ + struct tgsi_switch_record Switch; + + /* Current break type. */ + enum tgsi_break_type BreakType; + /** Condition mask stack (for nested conditionals) */ uint CondStack[TGSI_EXEC_MAX_COND_NESTING]; int CondStackTop; @@ -247,7 +299,7 @@ struct tgsi_exec_machine uint LoopLabelStack[TGSI_EXEC_MAX_LOOP_NESTING]; int LoopLabelStackTop; - /** Loop counter stack (x = count, y = current, z = step) */ + /** Loop counter stack (x = index, y = counter, z = step) */ struct tgsi_exec_vector LoopCounterStack[TGSI_EXEC_MAX_LOOP_NESTING]; int LoopCounterStackTop; @@ -255,6 +307,13 @@ struct tgsi_exec_machine uint ContStack[TGSI_EXEC_MAX_LOOP_NESTING]; int ContStackTop; + /** Switch case stack */ + struct tgsi_switch_record SwitchStack[TGSI_EXEC_MAX_SWITCH_NESTING]; + int SwitchStackTop; + + enum tgsi_break_type BreakStack[TGSI_EXEC_MAX_BREAK_STACK]; + int BreakStackTop; + /** Function execution mask stack (for executing subroutine code) */ uint FuncStack[TGSI_EXEC_MAX_CALL_NESTING]; int FuncStackTop; |