/************************************************************************** * * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * 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, sub license, 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 NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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. * **************************************************************************/ #ifndef I915_FPC_H #define I915_FPC_H #include "pipe/p_util.h" #include "i915_context.h" #include "i915_reg.h" #define I915_PROGRAM_SIZE 192 #define I915_MAX_CONSTANT 32 #define MAX_VARYING 8 enum { FRAG_ATTRIB_WPOS = 0, FRAG_ATTRIB_COL0 = 1, FRAG_ATTRIB_COL1 = 2, FRAG_ATTRIB_FOGC = 3, FRAG_ATTRIB_TEX0 = 4, FRAG_ATTRIB_TEX1 = 5, FRAG_ATTRIB_TEX2 = 6, FRAG_ATTRIB_TEX3 = 7, FRAG_ATTRIB_TEX4 = 8, FRAG_ATTRIB_TEX5 = 9, FRAG_ATTRIB_TEX6 = 10, FRAG_ATTRIB_TEX7 = 11, FRAG_ATTRIB_VAR0 = 12, /**< shader varying */ FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING) }; /** * Bitflags for fragment program input attributes. */ /*@{*/ #define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS) #define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0) #define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1) #define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC) #define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0) #define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1) #define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2) #define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3) #define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4) #define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5) #define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6) #define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7) #define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0) #define MAX_DRAW_BUFFERS 4 enum { FRAG_RESULT_COLR = 0, FRAG_RESULT_COLH = 1, FRAG_RESULT_DEPR = 2, FRAG_RESULT_DATA0 = 3, FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS) }; /** * Program translation state */ struct i915_fp_compile { struct pipe_shader_state *shader; uint declarations[I915_PROGRAM_SIZE]; uint program[I915_PROGRAM_SIZE]; uint constant_flags[I915_MAX_CONSTANT]; struct pipe_constant_buffer *constants; uint *csr; /* Cursor, points into program. */ uint *decl; /* Cursor, points into declarations. */ uint decl_s; /* flags for which s regs need to be decl'd */ uint decl_t; /* flags for which t regs need to be decl'd */ uint temp_flag; /* Tracks temporary regs which are in * use. */ uint utemp_flag; /* Tracks TYPE_U temporary regs which are in * use. */ uint nr_tex_indirect; uint nr_tex_insn; uint nr_alu_insn; uint nr_decl_insn; boolean error; /**< Set if i915_program_error() is called */ uint wpos_tex; uint NumNativeInstructions; uint NumNativeAluInstructions; uint NumNativeTexInstructions; uint NumNativeTexIndirections; }; /* Having zero and one in here makes the definition of swizzle a lot * easier. */ #define UREG_TYPE_SHIFT 29 #define UREG_NR_SHIFT 24 #define UREG_CHANNEL_X_NEGATE_SHIFT 23 #define UREG_CHANNEL_X_SHIFT 20 #define UREG_CHANNEL_Y_NEGATE_SHIFT 19 #define UREG_CHANNEL_Y_SHIFT 16 #define UREG_CHANNEL_Z_NEGATE_SHIFT 15 #define UREG_CHANNEL_Z_SHIFT 12 #define UREG_CHANNEL_W_NEGATE_SHIFT 11 #define UREG_CHANNEL_W_SHIFT 8 #define UREG_CHANNEL_ZERO_NEGATE_MBZ 5 #define UREG_CHANNEL_ZERO_SHIFT 4 #define UREG_CHANNEL_ONE_NEGATE_MBZ 1 #define UREG_CHANNEL_ONE_SHIFT 0 #define UREG_BAD 0xffffffff /* not a valid ureg */ #define X SRC_X #define Y SRC_Y #define Z SRC_Z #define W SRC_W #define ZERO SRC_ZERO #define ONE SRC_ONE /* Construct a ureg: */ #define UREG( type, nr ) (((type)<< UREG_TYPE_SHIFT) | \ ((nr) << UREG_NR_SHIFT) | \ (X << UREG_CHANNEL_X_SHIFT) | \ (Y << UREG_CHANNEL_Y_SHIFT) | \ (Z << UREG_CHANNEL_Z_SHIFT) | \ (W << UREG_CHANNEL_W_SHIFT) | \ (ZERO << UREG_CHANNEL_ZERO_SHIFT) | \ (ONE << UREG_CHANNEL_ONE_SHIFT)) #define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20)) #define CHANNEL_SRC( src, channel ) (src>>(channel*4)) #define GET_UREG_TYPE(reg) (((reg)>>UREG_TYPE_SHIFT)®_TYPE_MASK) #define GET_UREG_NR(reg) (((reg)>>UREG_NR_SHIFT)®_NR_MASK) #define UREG_XYZW_CHANNEL_MASK 0x00ffff00 /* One neat thing about the UREG representation: */ static INLINE int swizzle(int reg, int x, int y, int z, int w) { assert(x < 4); assert(y < 4); assert(z < 4); assert(w < 4); return ((reg & ~UREG_XYZW_CHANNEL_MASK) | CHANNEL_SRC(GET_CHANNEL_SRC(reg, x), 0) | CHANNEL_SRC(GET_CHANNEL_SRC(reg, y), 1) | CHANNEL_SRC(GET_CHANNEL_SRC(reg, z), 2) | CHANNEL_SRC(GET_CHANNEL_SRC(reg, w), 3)); } /* Another neat thing about the UREG representation: */ static INLINE int negate(int reg, int x, int y, int z, int w) { return reg ^ (((x & 1) << UREG_CHANNEL_X_NEGATE_SHIFT) | ((y & 1) << UREG_CHANNEL_Y_NEGATE_SHIFT) | ((z & 1) << UREG_CHANNEL_Z_NEGATE_SHIFT) | ((w & 1) << UREG_CHANNEL_W_NEGATE_SHIFT)); } /*********************************************************************** * Public interface for the compiler */ extern void i915_translate_fragment_program( struct i915_context *i915 ); extern uint i915_get_temp(struct i915_fp_compile *p); extern uint i915_get_utemp(struct i915_fp_compile *p); extern void i915_release_utemps(struct i915_fp_compile *p); extern uint i915_emit_texld(struct i915_fp_compile *p, uint dest, uint destmask, uint sampler, uint coord, uint op); extern uint i915_emit_arith(struct i915_fp_compile *p, uint op, uint dest, uint mask, uint saturate, uint src0, uint src1, uint src2); extern uint i915_emit_decl(struct i915_fp_compile *p, uint type, uint nr, uint d0_flags); extern uint i915_emit_const1f(struct i915_fp_compile *p, float c0); extern uint i915_emit_const2f(struct i915_fp_compile *p, float c0, float c1); extern uint i915_emit_const4fv(struct i915_fp_compile *p, const float * c); extern uint i915_emit_const4f(struct i915_fp_compile *p, float c0, float c1, float c2, float c3); /*====================================================================== * i915_fpc_debug.c */ extern void i915_disassemble_program(const uint * program, uint sz); /*====================================================================== * i915_fpc_translate.c */ extern void i915_program_error(struct i915_fp_compile *p, const char *msg); extern void i915_translate_fragment_program(struct i915_context *i915); #endif