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Diffstat (limited to 'src/xvmc/i915_program.h')
| -rw-r--r-- | src/xvmc/i915_program.h | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/src/xvmc/i915_program.h b/src/xvmc/i915_program.h new file mode 100644 index 00000000..82c920e0 --- /dev/null +++ b/src/xvmc/i915_program.h @@ -0,0 +1,276 @@ +#ifndef _I915_PROGRAM_H +#define _I915_PROGRAM_H + +#define REG_TYPE_R 0 /* temporary regs, no need to + * dcl, must be written before + * read -- Preserved between + * phases. + */ +#define REG_TYPE_T 1 /* Interpolated values, must be + * dcl'ed before use. + * + * 0..7: texture coord, + * 8: diffuse spec, + * 9: specular color, + * 10: fog parameter in w. + */ +#define REG_TYPE_CONST 2 /* Restriction: only one const + * can be referenced per + * instruction, though it may be + * selected for multiple inputs. + * Constants not initialized + * default to zero. + */ +#define REG_TYPE_S 3 /* sampler */ +#define REG_TYPE_OC 4 /* output color (rgba) */ +#define REG_TYPE_OD 5 /* output depth (w), xyz are + * temporaries. If not written, + * interpolated depth is used? + */ +#define REG_TYPE_U 6 /* unpreserved temporaries */ +#define REG_TYPE_MASK 0x7 +#define REG_NR_MASK 0xf + +/* REG_TYPE_T: + */ +#define T_TEX0 0 +#define T_TEX1 1 +#define T_TEX2 2 +#define T_TEX3 3 +#define T_TEX4 4 +#define T_TEX5 5 +#define T_TEX6 6 +#define T_TEX7 7 +#define T_DIFFUSE 8 +#define T_SPECULAR 9 +#define T_FOG_W 10 /* interpolated fog is in W coord */ + +/* Arithmetic instructions */ + +/* .replicate_swizzle == selection and replication of a particular + * scalar channel, ie., .xxxx, .yyyy, .zzzz or .wwww + */ +#define A0_NOP (0x0<<24) /* no operation */ +#define A0_ADD (0x1<<24) /* dst = src0 + src1 */ +#define A0_MOV (0x2<<24) /* dst = src0 */ +#define A0_MUL (0x3<<24) /* dst = src0 * src1 */ +#define A0_MAD (0x4<<24) /* dst = src0 * src1 + src2 */ +#define A0_DP2ADD (0x5<<24) /* dst.xyzw = src0.xy dot src1.xy + src2.replicate_swizzle */ +#define A0_DP3 (0x6<<24) /* dst.xyzw = src0.xyz dot src1.xyz */ +#define A0_DP4 (0x7<<24) /* dst.xyzw = src0.xyzw dot src1.xyzw */ +#define A0_FRC (0x8<<24) /* dst = src0 - floor(src0) */ +#define A0_RCP (0x9<<24) /* dst.xyzw = 1/(src0.replicate_swizzle) */ +#define A0_RSQ (0xa<<24) /* dst.xyzw = 1/(sqrt(abs(src0.replicate_swizzle))) */ +#define A0_EXP (0xb<<24) /* dst.xyzw = exp2(src0.replicate_swizzle) */ +#define A0_LOG (0xc<<24) /* dst.xyzw = log2(abs(src0.replicate_swizzle)) */ +#define A0_CMP (0xd<<24) /* dst = (src0 >= 0.0) ? src1 : src2 */ +#define A0_MIN (0xe<<24) /* dst = (src0 < src1) ? src0 : src1 */ +#define A0_MAX (0xf<<24) /* dst = (src0 >= src1) ? src0 : src1 */ +#define A0_FLR (0x10<<24) /* dst = floor(src0) */ +#define A0_MOD (0x11<<24) /* dst = src0 fmod 1.0 */ +#define A0_TRC (0x12<<24) /* dst = int(src0) */ +#define A0_SGE (0x13<<24) /* dst = src0 >= src1 ? 1.0 : 0.0 */ +#define A0_SLT (0x14<<24) /* dst = src0 < src1 ? 1.0 : 0.0 */ +#define A0_DEST_SATURATE (1<<22) +#define A0_DEST_TYPE_SHIFT 19 +/* Allow: R, OC, OD, U */ +#define A0_DEST_NR_SHIFT 14 +/* Allow R: 0..15, OC,OD: 0..0, U: 0..2 */ +#define A0_DEST_CHANNEL_X (1<<10) +#define A0_DEST_CHANNEL_Y (2<<10) +#define A0_DEST_CHANNEL_Z (4<<10) +#define A0_DEST_CHANNEL_W (8<<10) +#define A0_DEST_CHANNEL_ALL (0xf<<10) +#define A0_DEST_CHANNEL_SHIFT 10 +#define A0_SRC0_TYPE_SHIFT 7 +#define A0_SRC0_NR_SHIFT 2 + +#define A0_DEST_CHANNEL_XY (A0_DEST_CHANNEL_X|A0_DEST_CHANNEL_Y) +#define A0_DEST_CHANNEL_XYZ (A0_DEST_CHANNEL_XY|A0_DEST_CHANNEL_Z) + +#define SRC_X 0 +#define SRC_Y 1 +#define SRC_Z 2 +#define SRC_W 3 +#define SRC_ZERO 4 +#define SRC_ONE 5 + +#define A1_SRC0_CHANNEL_X_NEGATE (1<<31) +#define A1_SRC0_CHANNEL_X_SHIFT 28 +#define A1_SRC0_CHANNEL_Y_NEGATE (1<<27) +#define A1_SRC0_CHANNEL_Y_SHIFT 24 +#define A1_SRC0_CHANNEL_Z_NEGATE (1<<23) +#define A1_SRC0_CHANNEL_Z_SHIFT 20 +#define A1_SRC0_CHANNEL_W_NEGATE (1<<19) +#define A1_SRC0_CHANNEL_W_SHIFT 16 +#define A1_SRC1_TYPE_SHIFT 13 +#define A1_SRC1_NR_SHIFT 8 +#define A1_SRC1_CHANNEL_X_NEGATE (1<<7) +#define A1_SRC1_CHANNEL_X_SHIFT 4 +#define A1_SRC1_CHANNEL_Y_NEGATE (1<<3) +#define A1_SRC1_CHANNEL_Y_SHIFT 0 + +#define A2_SRC1_CHANNEL_Z_NEGATE (1<<31) +#define A2_SRC1_CHANNEL_Z_SHIFT 28 +#define A2_SRC1_CHANNEL_W_NEGATE (1<<27) +#define A2_SRC1_CHANNEL_W_SHIFT 24 +#define A2_SRC2_TYPE_SHIFT 21 +#define A2_SRC2_NR_SHIFT 16 +#define A2_SRC2_CHANNEL_X_NEGATE (1<<15) +#define A2_SRC2_CHANNEL_X_SHIFT 12 +#define A2_SRC2_CHANNEL_Y_NEGATE (1<<11) +#define A2_SRC2_CHANNEL_Y_SHIFT 8 +#define A2_SRC2_CHANNEL_Z_NEGATE (1<<7) +#define A2_SRC2_CHANNEL_Z_SHIFT 4 +#define A2_SRC2_CHANNEL_W_NEGATE (1<<3) +#define A2_SRC2_CHANNEL_W_SHIFT 0 + +/* Declaration instructions */ +#define D0_DCL (0x19<<24) /* Declare a t (interpolated attrib) + * register or an s (sampler) + * register. */ +#define D0_SAMPLE_TYPE_SHIFT 22 +#define D0_SAMPLE_TYPE_2D (0x0<<22) +#define D0_SAMPLE_TYPE_CUBE (0x1<<22) +#define D0_SAMPLE_TYPE_VOLUME (0x2<<22) +#define D0_SAMPLE_TYPE_MASK (0x3<<22) + +#define D0_TYPE_SHIFT 19 +/* Allow: T, S */ +#define D0_NR_SHIFT 14 +/* Allow T: 0..10, S: 0..15 */ +#define D0_CHANNEL_X (1<<10) +#define D0_CHANNEL_Y (2<<10) +#define D0_CHANNEL_Z (4<<10) +#define D0_CHANNEL_W (8<<10) +#define D0_CHANNEL_ALL (0xf<<10) +#define D0_CHANNEL_NONE (0<<10) + +#define D0_CHANNEL_XY (D0_CHANNEL_X|D0_CHANNEL_Y) +#define D0_CHANNEL_XYZ (D0_CHANNEL_XY|D0_CHANNEL_Z) + +/* I915 Errata: Do not allow (xz), (xw), (xzw) combinations for diffuse + * or specular declarations. + * + * For T dcls, only allow: (x), (xy), (xyz), (w), (xyzw) + * + * Must be zero for S (sampler) dcls + */ +#define D1_MBZ 0 +#define D2_MBZ 0 + +/* Texture instructions */ +#define T0_TEXLD (0x15<<24) /* Sample texture using predeclared + * sampler and address, and output + * filtered texel data to destination + * register */ +#define T0_TEXLDP (0x16<<24) /* Same as texld but performs a + * perspective divide of the texture + * coordinate .xyz values by .w before + * sampling. */ +#define T0_TEXLDB (0x17<<24) /* Same as texld but biases the + * computed LOD by w. Only S4.6 two's + * comp is used. This implies that a + * float to fixed conversion is + * done. */ +#define T0_TEXKILL (0x18<<24) /* Does not perform a sampling + * operation. Simply kills the pixel + * if any channel of the address + * register is < 0.0. */ +#define T0_DEST_TYPE_SHIFT 19 +/* Allow: R, OC, OD, U */ +/* Note: U (unpreserved) regs do not retain their values between + * phases (cannot be used for feedback) + * + * Note: oC and OD registers can only be used as the destination of a + * texture instruction once per phase (this is an implementation + * restriction). + */ +#define T0_DEST_NR_SHIFT 14 +/* Allow R: 0..15, OC,OD: 0..0, U: 0..2 */ +#define T0_SAMPLER_NR_SHIFT 0 /* This field ignored for TEXKILL */ +#define T0_SAMPLER_NR_MASK (0xf<<0) + +#define T1_ADDRESS_REG_TYPE_SHIFT 24 /* Reg to use as texture coord */ +/* Allow R, T, OC, OD -- R, OC, OD are 'dependent' reads, new program phase */ +#define T1_ADDRESS_REG_NR_SHIFT 17 +#define T2_MBZ 0 + + +/* 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) & REG_TYPE_MASK) +#define GET_UREG_NR(reg) (((reg) >> UREG_NR_SHIFT) & REG_NR_MASK) + +#define UREG_XYZW_CHANNEL_MASK 0x00ffff00 + +#define A0_DEST(reg) (((reg) & UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT) +#define D0_DEST(reg) (((reg) & UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT) +#define T0_DEST(reg) (((reg) & UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT) +#define A0_SRC0(reg) (((reg) & UREG_MASK) >> UREG_A0_SRC0_SHIFT_LEFT) +#define A1_SRC0(reg) (((reg) & UREG_MASK) << UREG_A1_SRC0_SHIFT_RIGHT) +#define A1_SRC1(reg) (((reg) & UREG_MASK) >> UREG_A1_SRC1_SHIFT_LEFT) +#define A2_SRC1(reg) (((reg) & UREG_MASK) << UREG_A2_SRC1_SHIFT_RIGHT) +#define A2_SRC2(reg) (((reg) & UREG_MASK) >> UREG_A2_SRC2_SHIFT_LEFT) + +/* These are special, and don't have swizzle/negate bits. + */ +#define T0_SAMPLER( reg ) (GET_UREG_NR(reg) << T0_SAMPLER_NR_SHIFT) +#define T1_ADDRESS_REG( reg ) ((GET_UREG_NR(reg) << T1_ADDRESS_REG_NR_SHIFT) | \ + (GET_UREG_TYPE(reg) << T1_ADDRESS_REG_TYPE_SHIFT)) + + +/* Macros for translating UREG's into the various register fields used + * by the I915 programmable unit. + */ +#define UREG_A0_DEST_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_DEST_TYPE_SHIFT) +#define UREG_A0_SRC0_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_SRC0_TYPE_SHIFT) +#define UREG_A1_SRC0_SHIFT_RIGHT (A1_SRC0_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT) +#define UREG_A1_SRC1_SHIFT_LEFT (UREG_TYPE_SHIFT - A1_SRC1_TYPE_SHIFT) +#define UREG_A2_SRC1_SHIFT_RIGHT (A2_SRC1_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT) +#define UREG_A2_SRC2_SHIFT_LEFT (UREG_TYPE_SHIFT - A2_SRC2_TYPE_SHIFT) + +#define UREG_MASK 0xffffff00 +#define UREG_TYPE_NR_MASK ((REG_TYPE_MASK << UREG_TYPE_SHIFT) | \ + (REG_NR_MASK << UREG_NR_SHIFT)) + +#endif |