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/* -*- c-basic-offset: 4 -*- */
/*
* Copyright © 2006,2010 Intel Corporation
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Chris Wilson <chris@chris-wilson.co.uk>
*
*/
/* Each instruction is 3 dwords long, though most don't require all
* this space. Maximum of 123 instructions. Smaller maxes per insn
* type.
*/
#define _3DSTATE_PIXEL_SHADER_PROGRAM (CMD_3D|(0x1d<<24)|(0x5<<16))
#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_TYPE_SHIFT 4
#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
/* 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
/* 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
/* MASK_* are the unshifted bitmasks of the destination mask in arithmetic
* operations
*/
#define MASK_X 0x1
#define MASK_Y 0x2
#define MASK_Z 0x4
#define MASK_W 0x8
#define MASK_XYZ (MASK_X | MASK_Y | MASK_Z)
#define MASK_XYZW (MASK_XYZ | MASK_W)
#define MASK_SATURATE 0x10
/* Temporary, undeclared regs. Preserved between phases */
#define FS_R0 ((REG_TYPE_R << REG_TYPE_SHIFT) | 0)
#define FS_R1 ((REG_TYPE_R << REG_TYPE_SHIFT) | 1)
#define FS_R2 ((REG_TYPE_R << REG_TYPE_SHIFT) | 2)
#define FS_R3 ((REG_TYPE_R << REG_TYPE_SHIFT) | 3)
/* Texture coordinate regs. Must be declared. */
#define FS_T0 ((REG_TYPE_T << REG_TYPE_SHIFT) | 0)
#define FS_T1 ((REG_TYPE_T << REG_TYPE_SHIFT) | 1)
#define FS_T2 ((REG_TYPE_T << REG_TYPE_SHIFT) | 2)
#define FS_T3 ((REG_TYPE_T << REG_TYPE_SHIFT) | 3)
#define FS_T4 ((REG_TYPE_T << REG_TYPE_SHIFT) | 4)
#define FS_T5 ((REG_TYPE_T << REG_TYPE_SHIFT) | 5)
#define FS_T6 ((REG_TYPE_T << REG_TYPE_SHIFT) | 6)
#define FS_T7 ((REG_TYPE_T << REG_TYPE_SHIFT) | 7)
#define FS_T8 ((REG_TYPE_T << REG_TYPE_SHIFT) | 8)
#define FS_T9 ((REG_TYPE_T << REG_TYPE_SHIFT) | 9)
#define FS_T10 ((REG_TYPE_T << REG_TYPE_SHIFT) | 10)
/* Constant values */
#define FS_C0 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 0)
#define FS_C1 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 1)
#define FS_C2 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 2)
#define FS_C3 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 3)
#define FS_C4 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 4)
#define FS_C5 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 5)
#define FS_C6 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 6)
#define FS_C7 ((REG_TYPE_CONST << REG_TYPE_SHIFT) | 7)
/* Sampler regs */
#define FS_S0 ((REG_TYPE_S << REG_TYPE_SHIFT) | 0)
#define FS_S1 ((REG_TYPE_S << REG_TYPE_SHIFT) | 1)
#define FS_S2 ((REG_TYPE_S << REG_TYPE_SHIFT) | 2)
#define FS_S3 ((REG_TYPE_S << REG_TYPE_SHIFT) | 3)
/* Output color */
#define FS_OC ((REG_TYPE_OC << REG_TYPE_SHIFT) | 0)
/* Output depth */
#define FS_OD ((REG_TYPE_OD << REG_TYPE_SHIFT) | 0)
/* Unpreserved temporary regs */
#define FS_U0 ((REG_TYPE_U << REG_TYPE_SHIFT) | 0)
#define FS_U1 ((REG_TYPE_U << REG_TYPE_SHIFT) | 1)
#define FS_U2 ((REG_TYPE_U << REG_TYPE_SHIFT) | 2)
#define FS_U3 ((REG_TYPE_U << REG_TYPE_SHIFT) | 3)
#define X_CHANNEL_SHIFT (REG_TYPE_SHIFT + 3)
#define Y_CHANNEL_SHIFT (X_CHANNEL_SHIFT + 4)
#define Z_CHANNEL_SHIFT (Y_CHANNEL_SHIFT + 4)
#define W_CHANNEL_SHIFT (Z_CHANNEL_SHIFT + 4)
#define REG_CHANNEL_MASK 0xf
#define REG_NR(reg) ((reg) & REG_NR_MASK)
#define REG_TYPE(reg) (((reg) >> REG_TYPE_SHIFT) & REG_TYPE_MASK)
#define REG_X(reg) (((reg) >> X_CHANNEL_SHIFT) & REG_CHANNEL_MASK)
#define REG_Y(reg) (((reg) >> Y_CHANNEL_SHIFT) & REG_CHANNEL_MASK)
#define REG_Z(reg) (((reg) >> Z_CHANNEL_SHIFT) & REG_CHANNEL_MASK)
#define REG_W(reg) (((reg) >> W_CHANNEL_SHIFT) & REG_CHANNEL_MASK)
enum i915_fs_channel {
X_CHANNEL_VAL = 0,
Y_CHANNEL_VAL,
Z_CHANNEL_VAL,
W_CHANNEL_VAL,
ZERO_CHANNEL_VAL,
ONE_CHANNEL_VAL,
NEG_X_CHANNEL_VAL = X_CHANNEL_VAL | 0x8,
NEG_Y_CHANNEL_VAL = Y_CHANNEL_VAL | 0x8,
NEG_Z_CHANNEL_VAL = Z_CHANNEL_VAL | 0x8,
NEG_W_CHANNEL_VAL = W_CHANNEL_VAL | 0x8,
NEG_ONE_CHANNEL_VAL = ONE_CHANNEL_VAL | 0x8
};
#define i915_fs_operand(reg, x, y, z, w) \
(reg) | \
(x##_CHANNEL_VAL << X_CHANNEL_SHIFT) | \
(y##_CHANNEL_VAL << Y_CHANNEL_SHIFT) | \
(z##_CHANNEL_VAL << Z_CHANNEL_SHIFT) | \
(w##_CHANNEL_VAL << W_CHANNEL_SHIFT)
/**
* Construct an operand description for using a register with no swizzling
*/
#define i915_fs_operand_reg(reg) \
i915_fs_operand(reg, X, Y, Z, W)
#define i915_fs_operand_reg_negate(reg) \
i915_fs_operand(reg, NEG_X, NEG_Y, NEG_Z, NEG_W)
/**
* Returns an operand containing (0.0, 0.0, 0.0, 0.0).
*/
#define i915_fs_operand_zero() i915_fs_operand(FS_R0, ZERO, ZERO, ZERO, ZERO)
/**
* Returns an unused operand
*/
#define i915_fs_operand_none() i915_fs_operand_zero()
/**
* Returns an operand containing (1.0, 1.0, 1.0, 1.0).
*/
#define i915_fs_operand_one() i915_fs_operand(FS_R0, ONE, ONE, ONE, ONE)
#define i915_get_hardware_channel_val(val, shift, negate) \
(((val & 0x7) << shift) | ((val & 0x8) ? negate : 0))
/**
* Outputs a fragment shader command to declare a sampler or texture register.
*/
#define i915_fs_dcl(reg) \
do { \
OUT_BATCH(D0_DCL | \
(REG_TYPE(reg) << D0_TYPE_SHIFT) | \
(REG_NR(reg) << D0_NR_SHIFT) | \
((REG_TYPE(reg) != REG_TYPE_S) ? D0_CHANNEL_ALL : 0)); \
OUT_BATCH(0); \
OUT_BATCH(0); \
} while (0)
#define i915_fs_texld(dest_reg, sampler_reg, address_reg) \
do { \
OUT_BATCH(T0_TEXLD | \
(REG_TYPE(dest_reg) << T0_DEST_TYPE_SHIFT) | \
(REG_NR(dest_reg) << T0_DEST_NR_SHIFT) | \
(REG_NR(sampler_reg) << T0_SAMPLER_NR_SHIFT)); \
OUT_BATCH((REG_TYPE(address_reg) << T1_ADDRESS_REG_TYPE_SHIFT) | \
(REG_NR(address_reg) << T1_ADDRESS_REG_NR_SHIFT)); \
OUT_BATCH(0); \
} while (0)
#define i915_fs_texldp(dest_reg, sampler_reg, address_reg) \
do { \
OUT_BATCH(T0_TEXLDP | \
(REG_TYPE(dest_reg) << T0_DEST_TYPE_SHIFT) | \
(REG_NR(dest_reg) << T0_DEST_NR_SHIFT) | \
(REG_NR(sampler_reg) << T0_SAMPLER_NR_SHIFT)); \
OUT_BATCH((REG_TYPE(address_reg) << T1_ADDRESS_REG_TYPE_SHIFT) | \
(REG_NR(address_reg) << T1_ADDRESS_REG_NR_SHIFT)); \
OUT_BATCH(0); \
} while (0)
#define i915_fs_arith_masked(op, dest_reg, dest_mask, operand0, operand1, operand2) \
_i915_fs_arith_masked(A0_##op, dest_reg, dest_mask, operand0, operand1, operand2)
#define i915_fs_arith(op, dest_reg, operand0, operand1, operand2) \
_i915_fs_arith(A0_##op, dest_reg, operand0, operand1, operand2)
#define _i915_fs_arith_masked(cmd, dest_reg, dest_mask, operand0, operand1, operand2) \
do { \
/* Set up destination register and write mask */ \
OUT_BATCH(cmd | \
(REG_TYPE(dest_reg) << A0_DEST_TYPE_SHIFT) | \
(REG_NR(dest_reg) << A0_DEST_NR_SHIFT) | \
(((dest_mask) & ~MASK_SATURATE) << A0_DEST_CHANNEL_SHIFT) | \
(((dest_mask) & MASK_SATURATE) ? A0_DEST_SATURATE : 0) | \
/* Set up operand 0 */ \
(REG_TYPE(operand0) << A0_SRC0_TYPE_SHIFT) | \
(REG_NR(operand0) << A0_SRC0_NR_SHIFT)); \
OUT_BATCH(i915_get_hardware_channel_val(REG_X(operand0), \
A1_SRC0_CHANNEL_X_SHIFT, \
A1_SRC0_CHANNEL_X_NEGATE) | \
i915_get_hardware_channel_val(REG_Y(operand0), \
A1_SRC0_CHANNEL_Y_SHIFT, \
A1_SRC0_CHANNEL_Y_NEGATE) | \
i915_get_hardware_channel_val(REG_Z(operand0), \
A1_SRC0_CHANNEL_Z_SHIFT, \
A1_SRC0_CHANNEL_Z_NEGATE) | \
i915_get_hardware_channel_val(REG_W(operand0), \
A1_SRC0_CHANNEL_W_SHIFT, \
A1_SRC0_CHANNEL_W_NEGATE) | \
/* Set up operand 1 */ \
(REG_TYPE(operand1) << A1_SRC1_TYPE_SHIFT) | \
(REG_NR(operand1) << A1_SRC1_NR_SHIFT) | \
i915_get_hardware_channel_val(REG_X(operand1), \
A1_SRC1_CHANNEL_X_SHIFT, \
A1_SRC1_CHANNEL_X_NEGATE) | \
i915_get_hardware_channel_val(REG_Y(operand1), \
A1_SRC1_CHANNEL_Y_SHIFT, \
A1_SRC1_CHANNEL_Y_NEGATE)); \
OUT_BATCH(i915_get_hardware_channel_val(REG_Z(operand1), \
A2_SRC1_CHANNEL_Z_SHIFT, \
A2_SRC1_CHANNEL_Z_NEGATE) | \
i915_get_hardware_channel_val(REG_W(operand1), \
A2_SRC1_CHANNEL_W_SHIFT, \
A2_SRC1_CHANNEL_W_NEGATE) | \
/* Set up operand 2 */ \
(REG_TYPE(operand2) << A2_SRC2_TYPE_SHIFT) | \
(REG_NR(operand2) << A2_SRC2_NR_SHIFT) | \
i915_get_hardware_channel_val(REG_X(operand2), \
A2_SRC2_CHANNEL_X_SHIFT, \
A2_SRC2_CHANNEL_X_NEGATE) | \
i915_get_hardware_channel_val(REG_Y(operand2), \
A2_SRC2_CHANNEL_Y_SHIFT, \
A2_SRC2_CHANNEL_Y_NEGATE) | \
i915_get_hardware_channel_val(REG_Z(operand2), \
A2_SRC2_CHANNEL_Z_SHIFT, \
A2_SRC2_CHANNEL_Z_NEGATE) | \
i915_get_hardware_channel_val(REG_W(operand2), \
A2_SRC2_CHANNEL_W_SHIFT, \
A2_SRC2_CHANNEL_W_NEGATE)); \
} while (0)
#define _i915_fs_arith(cmd, dest_reg, operand0, operand1, operand2) do {\
/* Set up destination register and write mask */ \
OUT_BATCH(cmd | \
(REG_TYPE(dest_reg) << A0_DEST_TYPE_SHIFT) | \
(REG_NR(dest_reg) << A0_DEST_NR_SHIFT) | \
(A0_DEST_CHANNEL_ALL) | \
/* Set up operand 0 */ \
(REG_TYPE(operand0) << A0_SRC0_TYPE_SHIFT) | \
(REG_NR(operand0) << A0_SRC0_NR_SHIFT)); \
OUT_BATCH(i915_get_hardware_channel_val(REG_X(operand0), \
A1_SRC0_CHANNEL_X_SHIFT, \
A1_SRC0_CHANNEL_X_NEGATE) | \
i915_get_hardware_channel_val(REG_Y(operand0), \
A1_SRC0_CHANNEL_Y_SHIFT, \
A1_SRC0_CHANNEL_Y_NEGATE) | \
i915_get_hardware_channel_val(REG_Z(operand0), \
A1_SRC0_CHANNEL_Z_SHIFT, \
A1_SRC0_CHANNEL_Z_NEGATE) | \
i915_get_hardware_channel_val(REG_W(operand0), \
A1_SRC0_CHANNEL_W_SHIFT, \
A1_SRC0_CHANNEL_W_NEGATE) | \
/* Set up operand 1 */ \
(REG_TYPE(operand1) << A1_SRC1_TYPE_SHIFT) | \
(REG_NR(operand1) << A1_SRC1_NR_SHIFT) | \
i915_get_hardware_channel_val(REG_X(operand1), \
A1_SRC1_CHANNEL_X_SHIFT, \
A1_SRC1_CHANNEL_X_NEGATE) | \
i915_get_hardware_channel_val(REG_Y(operand1), \
A1_SRC1_CHANNEL_Y_SHIFT, \
A1_SRC1_CHANNEL_Y_NEGATE)); \
OUT_BATCH(i915_get_hardware_channel_val(REG_Z(operand1), \
A2_SRC1_CHANNEL_Z_SHIFT, \
A2_SRC1_CHANNEL_Z_NEGATE) | \
i915_get_hardware_channel_val(REG_W(operand1), \
A2_SRC1_CHANNEL_W_SHIFT, \
A2_SRC1_CHANNEL_W_NEGATE) | \
/* Set up operand 2 */ \
(REG_TYPE(operand2) << A2_SRC2_TYPE_SHIFT) | \
(REG_NR(operand2) << A2_SRC2_NR_SHIFT) | \
i915_get_hardware_channel_val(REG_X(operand2), \
A2_SRC2_CHANNEL_X_SHIFT, \
A2_SRC2_CHANNEL_X_NEGATE) | \
i915_get_hardware_channel_val(REG_Y(operand2), \
A2_SRC2_CHANNEL_Y_SHIFT, \
A2_SRC2_CHANNEL_Y_NEGATE) | \
i915_get_hardware_channel_val(REG_Z(operand2), \
A2_SRC2_CHANNEL_Z_SHIFT, \
A2_SRC2_CHANNEL_Z_NEGATE) | \
i915_get_hardware_channel_val(REG_W(operand2), \
A2_SRC2_CHANNEL_W_SHIFT, \
A2_SRC2_CHANNEL_W_NEGATE)); \
} while (0)
#define i915_fs_mov(dest_reg, operand0) \
i915_fs_arith(MOV, dest_reg, \
operand0, \
i915_fs_operand_none(), \
i915_fs_operand_none())
#define i915_fs_mov_masked(dest_reg, dest_mask, operand0) \
i915_fs_arith_masked (MOV, dest_reg, dest_mask, \
operand0, \
i915_fs_operand_none(), \
i915_fs_operand_none())
#define i915_fs_frc(dest_reg, operand0) \
i915_fs_arith (FRC, dest_reg, \
operand0, \
i915_fs_operand_none(), \
i915_fs_operand_none())
/** Add operand0 and operand1 and put the result in dest_reg */
#define i915_fs_add(dest_reg, operand0, operand1) \
i915_fs_arith (ADD, dest_reg, \
operand0, operand1, \
i915_fs_operand_none())
/** Multiply operand0 and operand1 and put the result in dest_reg */
#define i915_fs_mul(dest_reg, operand0, operand1) \
i915_fs_arith (MUL, dest_reg, \
operand0, operand1, \
i915_fs_operand_none())
/** Computes 1/sqrt(operand0.replicate_swizzle) puts the result in dest_reg */
#define i915_fs_rsq(dest_reg, dest_mask, operand0) \
do { \
if (dest_mask) { \
i915_fs_arith_masked (RSQ, dest_reg, dest_mask, \
operand0, \
i915_fs_operand_none (), \
i915_fs_operand_none ()); \
} else { \
i915_fs_arith (RSQ, dest_reg, \
operand0, \
i915_fs_operand_none (), \
i915_fs_operand_none ()); \
} \
} while (0)
/** Puts the minimum of operand0 and operand1 in dest_reg */
#define i915_fs_min(dest_reg, operand0, operand1) \
i915_fs_arith (MIN, dest_reg, \
operand0, operand1, \
i915_fs_operand_none())
/** Puts the maximum of operand0 and operand1 in dest_reg */
#define i915_fs_max(dest_reg, operand0, operand1) \
i915_fs_arith (MAX, dest_reg, \
operand0, operand1, \
i915_fs_operand_none())
#define i915_fs_cmp(dest_reg, operand0, operand1, operand2) \
i915_fs_arith (CMP, dest_reg, operand0, operand1, operand2)
/** Perform operand0 * operand1 + operand2 and put the result in dest_reg */
#define i915_fs_mad(dest_reg, dest_mask, op0, op1, op2) \
do { \
if (dest_mask) { \
i915_fs_arith_masked (MAD, dest_reg, dest_mask, op0, op1, op2); \
} else { \
i915_fs_arith (MAD, dest_reg, op0, op1, op2); \
} \
} while (0)
#define i915_fs_dp2add(dest_reg, dest_mask, op0, op1, op2) \
do { \
if (dest_mask) { \
i915_fs_arith_masked (DP2ADD, dest_reg, dest_mask, op0, op1, op2); \
} else { \
i915_fs_arith (DP2ADD, dest_reg, op0, op1, op2); \
} \
} while (0)
/**
* Perform a 3-component dot-product of operand0 and operand1 and put the
* resulting scalar in the channels of dest_reg specified by the dest_mask.
*/
#define i915_fs_dp3(dest_reg, dest_mask, op0, op1) \
do { \
if (dest_mask) { \
i915_fs_arith_masked (DP3, dest_reg, dest_mask, \
op0, op1,\
i915_fs_operand_none()); \
} else { \
i915_fs_arith (DP3, dest_reg, op0, op1,\
i915_fs_operand_none()); \
} \
} while (0)
/**
* Sets up local state for accumulating a fragment shader buffer.
*
* \param x maximum number of shader commands that may be used between
* a FS_START and FS_END
*/
#define FS_LOCALS() \
uint32_t _shader_offset
#define FS_BEGIN() \
do { \
_shader_offset = intel->batch_used++; \
} while (0)
#define FS_END() \
do { \
intel->batch_ptr[_shader_offset] = \
_3DSTATE_PIXEL_SHADER_PROGRAM | \
(intel->batch_used - _shader_offset - 2); \
} while (0);
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