diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c b/src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c index 73fb70599c..3742fd672b 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c @@ -151,13 +151,34 @@ static void perspective_coef( struct lp_rast_shader_inputs *inputs, */ void lp_setup_tri_coef( struct lp_setup_context *setup, struct lp_rast_shader_inputs *inputs, - const struct lp_tri_info *info) + const float (*v0)[4], + const float (*v1)[4], + const float (*v2)[4], + boolean frontfacing) { unsigned slot; + struct lp_tri_info info; + float dx01 = v0[0][0] - v1[0][0]; + float dy01 = v0[0][1] - v1[0][1]; + float dx20 = v2[0][0] - v0[0][0]; + float dy20 = v2[0][1] - v0[0][1]; + float oneoverarea = 1.0f / (dx01 * dy20 - dx20 * dy01); + + info.v0 = v0; + info.v1 = v1; + info.v2 = v2; + info.frontfacing = frontfacing; + info.x0_center = v0[0][0] - setup->pixel_offset; + info.y0_center = v0[0][1] - setup->pixel_offset; + info.dx01_ooa = dx01 * oneoverarea; + info.dx20_ooa = dx20 * oneoverarea; + info.dy01_ooa = dy01 * oneoverarea; + info.dy20_ooa = dy20 * oneoverarea; + /* The internal position input is in slot zero: */ - linear_coef(inputs, info, 0, 0); + linear_coef(inputs, &info, 0, 0); /* setup interpolation for all the remaining attributes: */ @@ -167,19 +188,19 @@ void lp_setup_tri_coef( struct lp_setup_context *setup, switch (setup->fs.input[slot].interp) { case LP_INTERP_CONSTANT: if (setup->flatshade_first) { - constant_coef4(inputs, info, slot+1, info->v0[vert_attr]); + constant_coef4(inputs, &info, slot+1, info.v0[vert_attr]); } else { - constant_coef4(inputs, info, slot+1, info->v2[vert_attr]); + constant_coef4(inputs, &info, slot+1, info.v2[vert_attr]); } break; case LP_INTERP_LINEAR: - linear_coef(inputs, info, slot+1, vert_attr); + linear_coef(inputs, &info, slot+1, vert_attr); break; case LP_INTERP_PERSPECTIVE: - perspective_coef(inputs, info, slot+1, vert_attr); + perspective_coef(inputs, &info, slot+1, vert_attr); break; case LP_INTERP_POSITION: @@ -190,7 +211,7 @@ void lp_setup_tri_coef( struct lp_setup_context *setup, break; case LP_INTERP_FACING: - setup_facing_coef(inputs, info, slot+1); + setup_facing_coef(inputs, &info, slot+1); break; default: |