/************************************************************************** * * 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 "i915_context.h" #include "i915_reg.h" #define I915_PROGRAM_SIZE 192 /* Use those indices for pos/face routing, must be >= I915_TEX_UNITS */ #define I915_SEMANTIC_POS 10 #define I915_SEMANTIC_FACE 11 /** * Program translation state */ struct i915_fp_compile { struct i915_fragment_shader *shader; /* the shader we're compiling */ boolean used_constants[I915_MAX_CONSTANT]; /** maps TGSI immediate index to constant slot */ uint num_immediates; uint immediates_map[I915_MAX_CONSTANT]; float immediates[I915_MAX_CONSTANT][4]; boolean first_instruction; uint declarations[I915_PROGRAM_SIZE]; uint program[I915_PROGRAM_SIZE]; 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 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, uint x, uint y, uint z, uint w) { assert(x <= SRC_ONE); assert(y <= SRC_ONE); assert(z <= SRC_ONE); assert(w <= SRC_ONE); 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)); } /*********************************************************************** * Public interface for the compiler */ extern void i915_translate_fragment_program( struct i915_context *i915, struct i915_fragment_shader *fs); 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, ...); #endif