| /************************************************************************** |
| * |
| * 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_PROGRAM_H |
| #define I915_PROGRAM_H |
| |
| #include "i915_context.h" |
| #include "i915_reg.h" |
| |
| |
| |
| /* 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) |
| { |
| 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)); |
| } |
| |
| |
| extern GLuint i915_get_temp(struct i915_fragment_program *p); |
| extern GLuint i915_get_utemp(struct i915_fragment_program *p); |
| extern void i915_release_utemps(struct i915_fragment_program *p); |
| |
| |
| extern GLuint i915_emit_texld(struct i915_fragment_program *p, |
| GLuint live_regs, |
| GLuint dest, |
| GLuint destmask, |
| GLuint sampler, GLuint coord, GLuint op); |
| |
| extern GLuint i915_emit_arith(struct i915_fragment_program *p, |
| GLuint op, |
| GLuint dest, |
| GLuint mask, |
| GLuint saturate, |
| GLuint src0, GLuint src1, GLuint src2); |
| |
| extern GLuint i915_emit_decl(struct i915_fragment_program *p, |
| GLuint type, GLuint nr, GLuint d0_flags); |
| |
| |
| extern GLuint i915_emit_const1f(struct i915_fragment_program *p, GLfloat c0); |
| |
| extern GLuint i915_emit_const2f(struct i915_fragment_program *p, |
| GLfloat c0, GLfloat c1); |
| |
| extern GLuint i915_emit_const4fv(struct i915_fragment_program *p, |
| const GLfloat * c); |
| |
| extern GLuint i915_emit_const4f(struct i915_fragment_program *p, |
| GLfloat c0, GLfloat c1, |
| GLfloat c2, GLfloat c3); |
| |
| |
| extern GLuint i915_emit_param4fv(struct i915_fragment_program *p, |
| const GLfloat * values); |
| |
| extern void i915_program_error(struct i915_fragment_program *p, |
| const char *msg); |
| |
| extern void i915_init_program(struct i915_context *i915, |
| struct i915_fragment_program *p); |
| |
| extern void i915_upload_program(struct i915_context *i915, |
| struct i915_fragment_program *p); |
| |
| extern void i915_fini_program(struct i915_fragment_program *p); |
| |
| |
| |
| |
| #endif |
