/
mojoshader.c
7020 lines (5918 loc) · 226 KB
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/**
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* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
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*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
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// !!! FIXME: this file really needs to be split up.
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// !!! FIXME: I keep changing coding styles for symbols and typedefs.
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// Shader bytecode format is described at MSDN:
// http://msdn2.microsoft.com/en-us/library/ms800307.aspx
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <assert.h>
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#include "mojoshader.h"
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// This is the highest shader version we currently support.
#define MAX_SHADER_MAJOR 3
#define MAX_SHADER_MINOR 0
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// If SUPPORT_PROFILE_* isn't defined, we assume an implicit desire to support.
// You get all the profiles unless you go out of your way to disable them.
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#ifndef SUPPORT_PROFILE_D3D
#define SUPPORT_PROFILE_D3D 1
#endif
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#ifndef SUPPORT_PROFILE_PASSTHROUGH
#define SUPPORT_PROFILE_PASSTHROUGH 1
#endif
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#ifndef SUPPORT_PROFILE_GLSL
#define SUPPORT_PROFILE_GLSL 1
#endif
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#ifndef SUPPORT_PROFILE_ARB1
#define SUPPORT_PROFILE_ARB1 1
#endif
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// Get basic wankery out of the way here...
typedef unsigned int uint; // this is a printf() helper. don't use for code.
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#ifdef _MSC_VER
#define snprintf _snprintf
typedef unsigned __int8 uint8;
typedef unsigned __int32 uint32;
typedef unsigned __int32 int32;
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// Warning Level 4 considered harmful. :)
#pragma warning(disable: 4100) // "unreferenced formal parameter"
#pragma warning(disable: 4389) // "signed/unsigned mismatch"
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#else
#include <stdint.h>
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typedef uint8_t uint8;
typedef uint32_t uint32;
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typedef int32_t int32;
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#endif
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#ifdef __GNUC__
#define ISPRINTF(x,y) __attribute__((format (printf, x, y)))
#else
#define ISPRINTF(x,y)
#endif
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#define STATICARRAYLEN(x) ( (sizeof ((x))) / (sizeof ((x)[0])) )
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#ifdef _WINDOWS // !!! FIXME: bleh
const char *endline_str = "\r\n";
#else
const char *endline_str = "\n";
#endif
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// we need to reference this by explicit value occasionally.
#define OPCODE_RET 28
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// Special-case return values from the parsing pipeline...
#define FAIL (-1)
#define NOFAIL (-2)
#define END_OF_STREAM (-3)
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// Byteswap magic...
#if ((defined __GNUC__) && (defined __POWERPC__))
static inline uint32 SWAP32(uint32 x)
{
__asm__ __volatile__("lwbrx %0,0,%1" : "=r" (x) : "r" (&x));
return x;
} // SWAP32
#elif defined(__POWERPC__)
static inline uint32 SWAP32(uint32 x)
{
return ( (((x) >> 24) & 0x000000FF) | (((x) >> 8) & 0x0000FF00) |
(((x) << 8) & 0x00FF0000) | (((x) << 24) & 0xFF000000) );
} // SWAP32
#else
# define SWAP32(x) (x)
#endif
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typedef enum
{
REG_TYPE_TEMP = 0,
REG_TYPE_INPUT = 1,
REG_TYPE_CONST = 2,
REG_TYPE_ADDRESS = 3,
REG_TYPE_TEXTURE = 3, // ALSO 3!
REG_TYPE_RASTOUT = 4,
REG_TYPE_ATTROUT = 5,
REG_TYPE_TEXCRDOUT = 6,
REG_TYPE_OUTPUT = 6, // ALSO 6!
REG_TYPE_CONSTINT = 7,
REG_TYPE_COLOROUT = 8,
REG_TYPE_DEPTHOUT = 9,
REG_TYPE_SAMPLER = 10,
REG_TYPE_CONST2 = 11,
REG_TYPE_CONST3 = 12,
REG_TYPE_CONST4 = 13,
REG_TYPE_CONSTBOOL = 14,
REG_TYPE_LOOP = 15,
REG_TYPE_TEMPFLOAT16 = 16,
REG_TYPE_MISCTYPE = 17,
REG_TYPE_LABEL = 18,
REG_TYPE_PREDICATE = 19,
REG_TYPE_MAX = 19
} RegisterType;
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typedef enum
{
TEXTURE_TYPE_2D = 2,
TEXTURE_TYPE_CUBE = 3,
TEXTURE_TYPE_VOLUME = 4,
} TextureType;
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// predeclare.
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typedef struct Context Context;
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// one emit function for each opcode in each profile.
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typedef void (*emit_function)(Context *ctx);
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// one emit function for starting output in each profile.
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typedef void (*emit_start)(Context *ctx, const char *profilestr);
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// one emit function for ending output in each profile.
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typedef void (*emit_end)(Context *ctx);
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// one emit function for finalizing output in each profile.
typedef void (*emit_finalize)(Context *ctx);
// one emit function for global definitions in each profile.
typedef void (*emit_global)(Context *ctx, RegisterType regtype, int regnum);
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// one emit function for relative uniform arrays in each profile.
typedef void (*emit_relative)(Context *ctx, int size);
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// one emit function for uniforms in each profile.
typedef void (*emit_uniform)(Context *ctx, RegisterType regtype, int regnum);
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// one emit function for samplers in each profile.
typedef void (*emit_sampler)(Context *ctx, int stage, TextureType ttype);
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// one emit function for attributes in each profile.
typedef void (*emit_attribute)(Context *ctx, RegisterType regtype, int regnum,
MOJOSHADER_usage usage, int index, int wmask);
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// one args function for each possible sequence of opcode arguments.
typedef int (*args_function)(Context *ctx);
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// one state function for each opcode where we have state machine updates.
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typedef void (*state_function)(Context *ctx);
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// one function for varnames in each profile.
typedef const char *(*varname_function)(Context *c, RegisterType t, int num);
// one function for const var array in each profile.
typedef const char *(*const_array_varname_function)(Context *c);
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typedef struct
{
const char *name;
emit_start start_emitter;
emit_end end_emitter;
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emit_global global_emitter;
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emit_relative relative_emitter;
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emit_uniform uniform_emitter;
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emit_sampler sampler_emitter;
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emit_attribute attribute_emitter;
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emit_finalize finalize_emitter;
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varname_function get_varname;
const_array_varname_function get_const_array_varname;
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} Profile;
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typedef enum
{
RASTOUT_TYPE_POSITION = 0,
RASTOUT_TYPE_FOG = 1,
RASTOUT_TYPE_POINT_SIZE = 2,
RASTOUT_TYPE_MAX = 2
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} RastOutType;
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typedef enum
{
MISCTYPE_TYPE_POSITION = 0,
MISCTYPE_TYPE_FACE = 1,
MISCTYPE_TYPE_MAX = 1
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} MiscTypeType;
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// A simple linked list of strings, so we can build the final output without
// realloc()ing for each new line, and easily insert lines into the middle
// of the output without much trouble.
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typedef struct OutputListNode
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{
char *str;
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struct OutputListNode *next;
} OutputListNode;
typedef struct OutputList
{
OutputListNode head;
OutputListNode *tail;
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} OutputList;
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typedef struct RegisterList
{
RegisterType regtype;
int regnum;
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MOJOSHADER_usage usage;
int index;
int writemask;
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int misc;
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struct RegisterList *next;
} RegisterList;
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typedef struct ConstantsList
{
MOJOSHADER_constant constant;
struct ConstantsList *next;
} ConstantsList;
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// result modifiers.
#define MOD_SATURATE 0x01
#define MOD_PP 0x02
#define MOD_CENTROID 0x04
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// source modifiers.
typedef enum
{
SRCMOD_NONE,
SRCMOD_NEGATE,
SRCMOD_BIAS,
SRCMOD_BIASNEGATE,
SRCMOD_SIGN,
SRCMOD_SIGNNEGATE,
SRCMOD_COMPLEMENT,
SRCMOD_X2,
SRCMOD_X2NEGATE,
SRCMOD_DZ,
SRCMOD_DW,
SRCMOD_ABS,
SRCMOD_ABSNEGATE,
SRCMOD_NOT,
SRCMOD_TOTAL
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} SourceMod;
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typedef struct
{
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const uint32 *token; // this is the unmolested token in the stream.
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int regnum;
int relative;
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int writemask; // xyzw or rgba (all four, not split out).
int writemask0; // x or red
int writemask1; // y or green
int writemask2; // z or blue
int writemask3; // w or alpha
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int orig_writemask; // writemask before mojoshader tweaks it.
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int result_mod;
int result_shift;
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RegisterType regtype;
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} DestArgInfo;
typedef struct
{
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const uint32 *token; // this is the unmolested token in the stream.
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int regnum;
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int swizzle; // xyzw (all four, not split out).
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int swizzle_x;
int swizzle_y;
int swizzle_z;
int swizzle_w;
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SourceMod src_mod;
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RegisterType regtype;
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int relative;
RegisterType relative_regtype;
int relative_regnum;
int relative_component;
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} SourceArgInfo;
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#define SCRATCH_BUFFER_SIZE 128
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#define SCRATCH_BUFFERS 32
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// !!! FIXME: the scratch buffers make Context pretty big.
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// !!! FIXME: might be worth having one set of static scratch buffers that
// !!! FIXME: are mutex protected?
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// Context...this is state that changes as we parse through a shader...
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struct Context
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{
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MOJOSHADER_malloc malloc;
MOJOSHADER_free free;
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void *malloc_data;
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const uint32 *tokens;
uint32 tokencount;
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OutputList *output;
OutputList globals;
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OutputList helpers;
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OutputList subroutines;
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OutputList mainline_intro;
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OutputList mainline;
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OutputList ignore;
OutputList *output_stack[2];
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uint8 *output_bytes; // can be used instead of the OutputLists.
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int indent_stack[2];
int output_stack_len;
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int output_len; // total strlen; prevents walking the lists just to malloc.
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int indent;
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const char *shader_type_str;
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const char *endline;
int endline_len;
const char *failstr;
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char scratch[SCRATCH_BUFFERS][SCRATCH_BUFFER_SIZE];
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int scratchidx; // current scratch buffer.
int profileid;
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const Profile *profile;
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MOJOSHADER_shaderType shader_type;
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uint8 major_ver;
uint8 minor_ver;
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DestArgInfo dest_arg;
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SourceArgInfo source_args[5];
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SourceArgInfo predicate_arg; // for predicated instructions.
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uint32 dwords[4];
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int instruction_count;
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uint32 instruction_controls;
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uint32 previous_opcode;
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int max_constreg;
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int loops;
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int reps;
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int max_reps;
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int cmps;
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int scratch_registers;
int max_scratch_registers;
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int branch_labels_stack_index;
int branch_labels_stack[32];
int assigned_branch_labels;
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int assigned_vertex_attributes;
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int last_address_reg_component;
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RegisterList used_registers;
RegisterList defined_registers;
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int constant_count;
ConstantsList *constants;
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int uniform_count;
RegisterList uniforms;
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int attribute_count;
RegisterList attributes;
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int sampler_count;
RegisterList samplers;
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int predicated:1;
int uniform_array:1;
int support_nv2:1;
int glsl_generated_lit_opcode:1;
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};
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// Convenience functions for allocators...
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static MOJOSHADER_parseData out_of_mem_data = {
"Out of memory", 0, 0, 0, 0, MOJOSHADER_TYPE_UNKNOWN, 0, 0, 0, 0
};
static const char *out_of_mem_str = "Out of memory";
static inline int out_of_memory(Context *ctx)
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{
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if (ctx->failstr == NULL)
ctx->failstr = out_of_mem_str; // fail() would call malloc().
return FAIL;
} // out_of_memory
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static inline void *Malloc(Context *ctx, const size_t len)
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{
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void *retval = ctx->malloc((int) len, ctx->malloc_data);
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if (retval == NULL)
out_of_memory(ctx);
return retval;
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} // Malloc
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static inline void Free(Context *ctx, void *ptr)
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{
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if (ptr != NULL) // check for NULL in case of dumb free() impl.
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ctx->free(ptr, ctx->malloc_data);
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} // Free
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// jump between output sections in the context...
static inline void push_output(Context *ctx, OutputList *section)
{
assert(ctx->output_stack_len < STATICARRAYLEN(ctx->output_stack));
ctx->output_stack[ctx->output_stack_len] = ctx->output;
ctx->indent_stack[ctx->output_stack_len] = ctx->indent;
ctx->output_stack_len++;
ctx->output = section;
ctx->indent = 0;
} // push_output
static inline void pop_output(Context *ctx)
{
assert(ctx->output_stack_len > 0);
ctx->output_stack_len--;
ctx->output = ctx->output_stack[ctx->output_stack_len];
ctx->indent = ctx->indent_stack[ctx->output_stack_len];
} // pop_output
// Shader model version magic...
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static inline uint32 ver_ui32(const uint8 major, const uint8 minor)
{
return ( (((uint32) major) << 16) | (((minor) == 0xFF) ? 0 : (minor)) );
} // version_ui32
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static inline int shader_version_supported(const uint8 maj, const uint8 min)
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{
return (ver_ui32(maj,min) <= ver_ui32(MAX_SHADER_MAJOR, MAX_SHADER_MINOR));
} // shader_version_supported
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static inline int shader_version_atleast(const Context *ctx, const uint8 maj,
const uint8 min)
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{
return (ver_ui32(ctx->major_ver, ctx->minor_ver) >= ver_ui32(maj, min));
} // shader_version_atleast
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static inline int shader_is_pixel(const Context *ctx)
{
return (ctx->shader_type == MOJOSHADER_TYPE_PIXEL);
} // shader_is_pixel
static inline int shader_is_vertex(const Context *ctx)
{
return (ctx->shader_type == MOJOSHADER_TYPE_VERTEX);
} // shader_is_vertex
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static inline int isfail(const Context *ctx)
{
return (ctx->failstr != NULL);
} // isfail
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static inline char *get_scratch_buffer(Context *ctx)
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{
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if ((ctx->scratchidx >= SCRATCH_BUFFERS) && !isfail(ctx))
{
// can't call fail() here, since it calls back into here.
const char *errstr = "BUG: overflowed scratch buffers";
char *failstr = (char *) Malloc(ctx, strlen(errstr) + 1);
if (failstr != NULL)
{
strcpy(failstr, errstr);
ctx->failstr = failstr;
} // if
} // if
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ctx->scratchidx = (ctx->scratchidx + 1) % SCRATCH_BUFFERS;
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return ctx->scratch[ctx->scratchidx];
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} // get_scratch_buffer
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static int failf(Context *ctx, const char *fmt, ...) ISPRINTF(2,3);
static int failf(Context *ctx, const char *fmt, ...)
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{
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if (ctx->failstr == NULL) // don't change existing error.
{
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char *scratch = get_scratch_buffer(ctx);
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va_list ap;
va_start(ap, fmt);
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const int len = vsnprintf(scratch, SCRATCH_BUFFER_SIZE, fmt, ap);
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va_end(ap);
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char *failstr = (char *) Malloc(ctx, len + 1);
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if (failstr != NULL)
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{
// see comments about scratch buffer overflow in output_line().
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if (len < SCRATCH_BUFFER_SIZE)
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strcpy(failstr, scratch); // copy it over.
else
{
va_start(ap, fmt);
vsnprintf(failstr, len + 1, fmt, ap); // rebuild it.
va_end(ap);
} // else
ctx->failstr = failstr;
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} // if
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} // if
return FAIL;
} // failf
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static inline int fail(Context *ctx, const char *reason)
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{
return failf(ctx, "%s", reason);
} // fail
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static int output_line(Context *ctx, const char *fmt, ...) ISPRINTF(2,3);
static int output_line(Context *ctx, const char *fmt, ...)
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{
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OutputListNode *item = NULL;
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if (isfail(ctx))
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return FAIL; // we failed previously, don't go on...
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char *scratch = get_scratch_buffer(ctx);
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const int indent = ctx->indent;
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if (indent > 0)
memset(scratch, '\t', indent);
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va_list ap;
va_start(ap, fmt);
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const int len = vsnprintf(scratch+indent, SCRATCH_BUFFER_SIZE-indent, fmt, ap) + indent;
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va_end(ap);
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item = (OutputListNode *) Malloc(ctx, sizeof (OutputListNode));
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if (item == NULL)
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return FAIL;
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item->str = (char *) Malloc(ctx, len + 1);
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if (item->str == NULL)
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{
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Free(ctx, item);
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return FAIL;
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} // if
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// If we overflowed our scratch buffer, that's okay. We were going to
// allocate anyhow...the scratch buffer just lets us avoid a second
// run of vsnprintf().
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if (len < SCRATCH_BUFFER_SIZE)
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strcpy(item->str, scratch); // copy it over.
else
{
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if (indent > 0)
memset(item->str, '\t', indent);
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va_start(ap, fmt);
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vsnprintf(item->str+indent, len + 1, fmt, ap); // rebuild it.
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va_end(ap);
} // else
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item->next = NULL;
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ctx->output->tail->next = item;
ctx->output->tail = item;
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ctx->output_len += len + ctx->endline_len;
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return 0;
} // output_line
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// this is just to stop gcc whining.
static inline int output_blank_line(Context *ctx)
{
return output_line(ctx, "%s", "");
} // output_blank_line
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// !!! FIXME: this is sort of nasty.
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static void floatstr(Context *ctx, char *buf, size_t bufsize, float f,
int leavedecimal)
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{
const size_t len = snprintf(buf, bufsize, "%f", f);
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if ((len+2) >= bufsize)
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fail(ctx, "BUG: internal buffer is too small");
else
{
char *end = buf + len;
char *ptr = strchr(buf, '.');
if (ptr == NULL)
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{
if (leavedecimal)
strcat(buf, ".0");
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return; // done.
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} // if
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while (--end != ptr)
{
if (*end != '0')
{
end++;
break;
} // if
} // while
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if ((leavedecimal) && (end == ptr))
end += 2;
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*end = '\0'; // chop extra '0' or all decimal places off.
} // else
} // floatstr
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// Deal with register lists... !!! FIXME: I sort of hate this.
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static void free_reglist(MOJOSHADER_free f, void *d, RegisterList *item)
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{
while (item != NULL)
{
RegisterList *next = item->next;
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f(item, d);
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item = next;
} // while
} // free_reglist
static inline uint32 reg_to_ui32(const RegisterType regtype, const int regnum)
{
return ( ((uint32) regtype) | (((uint32) regnum) << 16) );
} // reg_to_uint32
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static RegisterList *reglist_insert(Context *ctx, RegisterList *prev,
const RegisterType regtype,
const int regnum)
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{
const uint32 newval = reg_to_ui32(regtype, regnum);
RegisterList *item = prev->next;
while (item != NULL)
{
const uint32 val = reg_to_ui32(item->regtype, item->regnum);
if (newval == val)
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return item; // already set, so we're done.
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else if (newval < val) // insert it here.
break;
else // if (newval > val)
{
// keep going, we're not to the insertion point yet.
prev = item;
item = item->next;
} // else
} // while
// we need to insert an entry after (prev).
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item = (RegisterList *) Malloc(ctx, sizeof (RegisterList));
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if (item != NULL)
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{
item->regtype = regtype;
item->regnum = regnum;
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item->usage = MOJOSHADER_USAGE_UNKNOWN;
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item->index = 0;
item->writemask = 0;
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item->misc = 0;
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item->next = prev->next;
prev->next = item;
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} // if
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return item;
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} // reglist_insert
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static RegisterList *reglist_find(RegisterList *prev, const RegisterType rtype,
const int regnum)
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{
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const uint32 newval = reg_to_ui32(rtype, regnum);
RegisterList *item = prev->next;
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while (item != NULL)
{
const uint32 val = reg_to_ui32(item->regtype, item->regnum);
if (newval == val)
return item; // here it is.
else if (newval < val) // should have been here if it existed.
return NULL;
else // if (newval > val)
{
// keep going, we're not to the insertion point yet.
prev = item;
item = item->next;
} // else
} // while
return NULL; // wasn't in the list.
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} // reglist_find
static inline const RegisterList *reglist_exists(RegisterList *prev,
const RegisterType regtype,
const int regnum)
{
return (reglist_find(prev, regtype, regnum));
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} // reglist_exists
static inline void set_used_register(Context *ctx, const RegisterType regtype,
const int regnum)
{
reglist_insert(ctx, &ctx->used_registers, regtype, regnum);
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if ((regtype == REG_TYPE_CONST) && (ctx->max_constreg < regnum))
ctx->max_constreg = regnum;
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} // set_used_register
static inline int get_used_register(Context *ctx, const RegisterType regtype,
const int regnum)
{
return (reglist_exists(&ctx->used_registers, regtype, regnum) != NULL);
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} // get_used_register
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static inline void set_defined_register(Context *ctx, const RegisterType rtype,
const int regnum)
{
reglist_insert(ctx, &ctx->defined_registers, rtype, regnum);
} // set_defined_register
static inline int get_defined_register(Context *ctx, const RegisterType rtype,
const int regnum)
{
return (reglist_exists(&ctx->defined_registers, rtype, regnum) != NULL);
} // get_defined_register
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752
static const RegisterList *declared_attribute(Context *ctx,
const MOJOSHADER_usage usage,
const int index)
{
const RegisterList *item = ctx->attributes.next;
while (item != NULL)
{
if ((item->usage == usage) && (item->index == index))
return item;
item = item->next;
} // while
return NULL;
} // declared_attribute
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static void add_attribute_register(Context *ctx, const RegisterType rtype,
const int regnum, const MOJOSHADER_usage usage,
const int index, const int writemask)
{
RegisterList *item = reglist_insert(ctx, &ctx->attributes, rtype, regnum);
item->usage = usage;
item->index = index;
item->writemask = writemask;
} // add_attribute_register
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765
static inline void add_sampler(Context *ctx, const RegisterType rtype,
const int regnum, const TextureType ttype)
{
766
// !!! FIXME: make sure it doesn't exist?
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RegisterList *item = reglist_insert(ctx, &ctx->samplers, rtype, regnum);
item->index = (int) ttype;
} // add_sampler
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789
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801
static inline int writemask_xyzw(const int writemask)
{
return (writemask == 0xF); // 0xF == 1111. No explicit mask (full!).
} // writemask_xyzw
static inline int writemask_xyz(const int writemask)
{
return (writemask == 0x7); // 0x7 == 0111. (that is: xyz)
} // writemask_xyz
static inline int writemask_xy(const int writemask)
{
return (writemask == 0x3); // 0x3 == 0011. (that is: xy)
} // writemask_xy
static inline int writemask_x(const int writemask)
{
return (writemask == 0x1); // 0x1 == 0001. (that is: x)
} // writemask_x
static inline int writemask_y(const int writemask)
{
return (writemask == 0x2); // 0x1 == 0010. (that is: y)
} // writemask_y
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803
804
805
806
807
808
809
static inline int replicate_swizzle(const int swizzle)
{
return ( (((swizzle >> 0) & 0x3) == ((swizzle >> 2) & 0x3)) &&
(((swizzle >> 2) & 0x3) == ((swizzle >> 4) & 0x3)) &&
(((swizzle >> 4) & 0x3) == ((swizzle >> 6) & 0x3)) );
} // replicate_swizzle
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812
813
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817
818
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820
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822
823
824
825
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827
828
829
830
831
static inline int scalar_register(const RegisterType regtype, const int regnum)
{
switch (regtype)
{
case REG_TYPE_DEPTHOUT:
case REG_TYPE_CONSTBOOL:
case REG_TYPE_PREDICATE:
case REG_TYPE_LOOP:
return 1;
case REG_TYPE_MISCTYPE:
if ( ((const MiscTypeType) regnum) == MISCTYPE_TYPE_FACE )
return 1;
return 0;
default: break;
} // switch
return 0;
} // scalar_register
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833
static inline int no_swizzle(const int swizzle)
{
834
return (swizzle == 0xE4); // 0xE4 == 11100100 ... 0 1 2 3. No swizzle.
835
836
837
} // no_swizzle
838
839
840
841
842
static inline int vecsize_from_writemask(const int m)
{
return (m & 1) + ((m >> 1) & 1) + ((m >> 2) & 1) + ((m >> 3) & 1);
} // vecsize_from_writemask
843
844
845
846
847
848
849
850
static int allocate_scratch_register(Context *ctx)
{
const int retval = ctx->scratch_registers++;
if (retval >= ctx->max_scratch_registers)
ctx->max_scratch_registers = retval + 1;
return retval;
} // allocate_scratch_register
851
static int allocate_branch_label(Context *ctx)
852
{
853
854
return ctx->assigned_branch_labels++;
} // allocate_branch_label
855
856
857
858
// D3D stuff that's used in more than just the d3d profile...
859
860
861
static const char swizzle_channels[] = { 'x', 'y', 'z', 'w' };
862
863
864
865
866
static const char *usagestrs[] = {
"_position", "_blendweight", "_blendindices", "_normal", "_psize",
"_texcoord", "_tangent", "_binormal", "_tessfactor", "_positiont",
"_color", "_fog", "_depth", "_sample"
};
867
868
static const char *get_D3D_register_string(Context *ctx,
869
RegisterType regtype,
870
871
int regnum, char *regnum_str,
size_t regnum_size)
872
{
873
const char *retval = NULL;
874
int has_number = 1;
875
876
switch (regtype)
877
{
878
case REG_TYPE_TEMP:
879
retval = "r";
880
881
break;
882
case REG_TYPE_INPUT:
883
retval = "v";
884
885
break;
886
case REG_TYPE_CONST:
887
888
889
retval = "c";
break;
890
case REG_TYPE_ADDRESS: // (or REG_TYPE_TEXTURE, same value.)
891
retval = shader_is_vertex(ctx) ? "a" : "t";
892
893
break;
894
case REG_TYPE_RASTOUT:
895
switch ((RastOutType) regnum)
896
{
897
898
899
case RASTOUT_TYPE_POSITION: retval = "oPos"; break;
case RASTOUT_TYPE_FOG: retval = "oFog"; break;
case RASTOUT_TYPE_POINT_SIZE: retval = "oPts"; break;
900
} // switch
901
has_number = 0;
902
903
break;
904
case REG_TYPE_ATTROUT:
905
retval = "oD";
906
907
break;
908
case REG_TYPE_OUTPUT: // (or REG_TYPE_TEXCRDOUT, same value.)
909
if (shader_is_vertex(ctx) && shader_version_atleast(ctx, 3, 0))
910
retval = "o";
911
else
912
retval = "oT";
913
914
break;
915
case REG_TYPE_CONSTINT:
916
retval = "i";
917
918
break;
919
case REG_TYPE_COLOROUT:
920
retval = "oC";
921
922
break;
923
case REG_TYPE_DEPTHOUT:
924
retval = "oDepth";
925
has_number = 0;
926
927
break;
928
case REG_TYPE_SAMPLER:
929
retval = "s";
930
931
break;
932
case REG_TYPE_CONSTBOOL:
933
retval = "b";
934
935
break;
936
case REG_TYPE_LOOP:
937
retval = "aL";
938
has_number = 0;
939
940
break;
941
case REG_TYPE_MISCTYPE:
942
switch ((const MiscTypeType) regnum)
943
{
944
945
case MISCTYPE_TYPE_POSITION: retval = "vPos"; break;
case MISCTYPE_TYPE_FACE: retval = "vFace"; break;
946
} // switch
947
has_number = 0;
948
949
break;
950
case REG_TYPE_LABEL:
951
retval = "l";
952
953
break;
954
case REG_TYPE_PREDICATE:
955
retval = "p";
956
break;
957
958
959
960
961
962
963
//case REG_TYPE_TEMPFLOAT16: // !!! FIXME: don't know this asm string
default:
fail(ctx, "unknown register type");
retval = "???";
has_number = 0;
break;
964
965
} // switch
966
967
968
969
970
if (has_number)
snprintf(regnum_str, regnum_size, "%u", (uint) regnum);
else
regnum_str[0] = '\0';
971
972
973
974
return retval;
} // get_D3D_register_string
975
976
977
978
979
980
981
982
983
#define AT_LEAST_ONE_PROFILE 0
#if !SUPPORT_PROFILE_D3D
#define PROFILE_EMITTER_D3D(op)
#else
#undef AT_LEAST_ONE_PROFILE
#define AT_LEAST_ONE_PROFILE 1
#define PROFILE_EMITTER_D3D(op) emit_D3D_##op,
984
static const char *make_D3D_srcarg_string_in_buf(Context *ctx,
985
986
const SourceArgInfo *arg,
char *buf, size_t buflen)
987
988
989
{
const char *premod_str = "";
const char *postmod_str = "";
990
switch (arg->src_mod)
991
992
993
994
995
996
997
998
999
1000
{
case SRCMOD_NEGATE:
premod_str = "-";
break;
case SRCMOD_BIASNEGATE:
premod_str = "-";
// fall through.
case SRCMOD_BIAS:
postmod_str = "_bias";