Module: Mesa Branch: master Commit: 007a843991cd2c03369590fa15cbb60a9b261c65 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=007a843991cd2c03369590fa15cbb60a9b261c65
Author: Zack Rusin <[email protected]> Date: Thu Sep 3 15:33:31 2009 -0400 st/xorg: radial gradient shader --- src/gallium/state_trackers/xorg/xorg_exa_tgsi.c | 85 +++++++++++++++++++++++ 1 files changed, 85 insertions(+), 0 deletions(-) diff --git a/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c b/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c index 9fb1f3f..b15f31e 100644 --- a/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c +++ b/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c @@ -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) _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
