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st/xorg: radial gradient shader

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This commit is contained in:
Zack Rusin 2009-09-03 15:33:31 -04:00
parent 5571c4fe36
commit 007a843991
1 changed files with 85 additions and 0 deletions
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85
src/gallium/state_trackers/xorg/xorg_exa_tgsi.c
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@ -145,6 +145,91 @@ linear_gradient(struct ureg_program *ureg,
ureg_release_temporary(ureg, temp5);
}
static void
radial_gradient(struct ureg_program *ureg,
struct ureg_dst out,
struct ureg_src pos,
struct ureg_src sampler,
struct ureg_src coords,
struct ureg_src const0124,
struct ureg_src matrow0,
struct ureg_src matrow1,
struct ureg_src matrow2)
{
struct ureg_dst temp0 = ureg_DECL_temporary(ureg);
struct ureg_dst temp1 = ureg_DECL_temporary(ureg);
struct ureg_dst temp2 = ureg_DECL_temporary(ureg);
struct ureg_dst temp3 = ureg_DECL_temporary(ureg);
struct ureg_dst temp4 = ureg_DECL_temporary(ureg);
struct ureg_dst temp5 = ureg_DECL_temporary(ureg);
ureg_MOV(ureg,
ureg_writemask(temp0, TGSI_WRITEMASK_XY),
pos);
ureg_MOV(ureg,
ureg_writemask(temp0, TGSI_WRITEMASK_Z),
ureg_scalar(const0124, TGSI_SWIZZLE_Y));
ureg_DP3(ureg, temp1, matrow0, ureg_src(temp0));
ureg_DP3(ureg, temp2, matrow1, ureg_src(temp0));
ureg_DP3(ureg, temp3, matrow2, ureg_src(temp0));
ureg_RCP(ureg, temp3, ureg_src(temp3));
ureg_MUL(ureg, temp1, ureg_src(temp1), ureg_src(temp3));
ureg_MUL(ureg, temp2, ureg_src(temp2), ureg_src(temp3));
ureg_MOV(ureg, ureg_writemask(temp5, TGSI_WRITEMASK_X),
ureg_src(temp1));
ureg_MOV(ureg, ureg_writemask(temp5, TGSI_WRITEMASK_Y),
ureg_src(temp2));
ureg_MUL(ureg, temp0, ureg_scalar(coords, TGSI_SWIZZLE_Y),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_Y));
ureg_MAD(ureg, temp1,
ureg_scalar(coords, TGSI_SWIZZLE_X),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_X),
ureg_src(temp0));
ureg_ADD(ureg, temp1,
ureg_src(temp1), ureg_src(temp1));
ureg_MUL(ureg, temp3,
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_Y),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_Y));
ureg_MAD(ureg, temp4,
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_X),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_X),
ureg_src(temp3));
ureg_MOV(ureg, temp4, ureg_negate(ureg_src(temp4)));
ureg_MUL(ureg, temp2,
ureg_scalar(coords, TGSI_SWIZZLE_Z),
ureg_src(temp4));
ureg_MUL(ureg, temp0,
ureg_scalar(const0124, TGSI_SWIZZLE_W),
ureg_src(temp2));
ureg_MUL(ureg, temp3,
ureg_src(temp1), ureg_src(temp1));
ureg_SUB(ureg, temp2,
ureg_src(temp3), ureg_src(temp0));
ureg_RSQ(ureg, temp2, ureg_abs(ureg_src(temp2)));
ureg_RCP(ureg, temp2, ureg_src(temp2));
ureg_SUB(ureg, temp1,
ureg_src(temp2), ureg_src(temp1));
ureg_ADD(ureg, temp0,
ureg_scalar(coords, TGSI_SWIZZLE_Z),
ureg_scalar(coords, TGSI_SWIZZLE_Z));
ureg_RCP(ureg, temp0, ureg_src(temp0));
ureg_MUL(ureg, temp2,
ureg_src(temp1), ureg_src(temp0));
ureg_TEX(ureg, out, TGSI_TEXTURE_1D,
ureg_src(temp2), sampler);
ureg_release_temporary(ureg, temp0);
ureg_release_temporary(ureg, temp1);
ureg_release_temporary(ureg, temp2);
ureg_release_temporary(ureg, temp3);
ureg_release_temporary(ureg, temp4);
ureg_release_temporary(ureg, temp5);
}
static void *
create_vs(struct pipe_context *pipe,
unsigned vs_traits)