diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_setup_tri.c')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_tri.c | 73 |
1 files changed, 39 insertions, 34 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c index e75412ac9aa..ac6264dc73e 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c @@ -41,7 +41,8 @@ /** * Compute a0 for a constant-valued coefficient (GL_FLAT shading). */ -static void constant_coef( struct lp_rast_triangle *tri, +static void constant_coef( struct lp_setup_context *setup, + struct lp_rast_triangle *tri, unsigned slot, const float value, unsigned i ) @@ -56,7 +57,8 @@ static void constant_coef( struct lp_rast_triangle *tri, * Compute a0, dadx and dady for a linearly interpolated coefficient, * for a triangle. */ -static void linear_coef( struct lp_rast_triangle *tri, +static void linear_coef( struct lp_setup_context *setup, + struct lp_rast_triangle *tri, float oneoverarea, unsigned slot, const float (*v1)[4], @@ -90,8 +92,8 @@ static void linear_coef( struct lp_rast_triangle *tri, * instead - i'll switch to this later. */ tri->inputs.a0[slot][i] = (a1 - - (dadx * (v1[0][0] - 0.5f) + - dady * (v1[0][1] - 0.5f))); + (dadx * (v1[0][0] - setup->pixel_offset) + + dady * (v1[0][1] - setup->pixel_offset))); } @@ -103,7 +105,8 @@ static void linear_coef( struct lp_rast_triangle *tri, * Later, when we compute the value at a particular fragment position we'll * divide the interpolated value by the interpolated W at that fragment. */ -static void perspective_coef( struct lp_rast_triangle *tri, +static void perspective_coef( struct lp_setup_context *setup, + struct lp_rast_triangle *tri, float oneoverarea, unsigned slot, const float (*v1)[4], @@ -125,8 +128,8 @@ static void perspective_coef( struct lp_rast_triangle *tri, tri->inputs.dadx[slot][i] = dadx; tri->inputs.dady[slot][i] = dady; tri->inputs.a0[slot][i] = (a1 - - (dadx * (v1[0][0] - 0.5f) + - dady * (v1[0][1] - 0.5f))); + (dadx * (v1[0][0] - setup->pixel_offset) + + dady * (v1[0][1] - setup->pixel_offset))); } @@ -137,7 +140,8 @@ static void perspective_coef( struct lp_rast_triangle *tri, * We could do a bit less work if we'd examine gl_FragCoord's swizzle mask. */ static void -setup_fragcoord_coef(struct lp_rast_triangle *tri, +setup_fragcoord_coef(struct lp_setup_context *setup, + struct lp_rast_triangle *tri, float oneoverarea, unsigned slot, const float (*v1)[4], @@ -153,27 +157,28 @@ setup_fragcoord_coef(struct lp_rast_triangle *tri, tri->inputs.dadx[slot][1] = 0.0; tri->inputs.dady[slot][1] = 1.0; /*Z*/ - linear_coef(tri, oneoverarea, slot, v1, v2, v3, 0, 2); + linear_coef(setup, tri, oneoverarea, slot, v1, v2, v3, 0, 2); /*W*/ - linear_coef(tri, oneoverarea, slot, v1, v2, v3, 0, 3); + linear_coef(setup, tri, oneoverarea, slot, v1, v2, v3, 0, 3); } -static void setup_facing_coef( struct lp_rast_triangle *tri, +static void setup_facing_coef( struct lp_setup_context *setup, + struct lp_rast_triangle *tri, unsigned slot, boolean frontface ) { - constant_coef( tri, slot, 1.0f - frontface, 0 ); - constant_coef( tri, slot, 0.0f, 1 ); /* wasted */ - constant_coef( tri, slot, 0.0f, 2 ); /* wasted */ - constant_coef( tri, slot, 0.0f, 3 ); /* wasted */ + constant_coef( setup, tri, slot, 1.0f - frontface, 0 ); + constant_coef( setup, tri, slot, 0.0f, 1 ); /* wasted */ + constant_coef( setup, tri, slot, 0.0f, 2 ); /* wasted */ + constant_coef( setup, tri, slot, 0.0f, 3 ); /* wasted */ } /** * Compute the tri->coef[] array dadx, dady, a0 values. */ -static void setup_tri_coefficients( struct setup_context *setup, +static void setup_tri_coefficients( struct lp_setup_context *setup, struct lp_rast_triangle *tri, float oneoverarea, const float (*v1)[4], @@ -185,7 +190,7 @@ static void setup_tri_coefficients( struct setup_context *setup, /* The internal position input is in slot zero: */ - setup_fragcoord_coef(tri, oneoverarea, 0, v1, v2, v3); + setup_fragcoord_coef(setup, tri, oneoverarea, 0, v1, v2, v3); /* setup interpolation for all the remaining attributes: */ @@ -196,27 +201,27 @@ static void setup_tri_coefficients( struct setup_context *setup, switch (setup->fs.input[slot].interp) { case LP_INTERP_CONSTANT: for (i = 0; i < NUM_CHANNELS; i++) - constant_coef(tri, slot+1, v3[vert_attr][i], i); + constant_coef(setup, tri, slot+1, v3[vert_attr][i], i); break; case LP_INTERP_LINEAR: for (i = 0; i < NUM_CHANNELS; i++) - linear_coef(tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); + linear_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); break; case LP_INTERP_PERSPECTIVE: for (i = 0; i < NUM_CHANNELS; i++) - perspective_coef(tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); + perspective_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i); break; case LP_INTERP_POSITION: /* XXX: fix me - duplicates the values in slot zero. */ - setup_fragcoord_coef(tri, oneoverarea, slot+1, v1, v2, v3); + setup_fragcoord_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3); break; case LP_INTERP_FACING: - setup_facing_coef(tri, slot+1, frontface); + setup_facing_coef(setup, tri, slot+1, frontface); break; default: @@ -274,19 +279,19 @@ alloc_triangle(struct lp_scene *scene, unsigned nr_inputs, unsigned *tri_size) * bins for the tiles which we overlap. */ static void -do_triangle_ccw(struct setup_context *setup, +do_triangle_ccw(struct lp_setup_context *setup, const float (*v1)[4], const float (*v2)[4], const float (*v3)[4], boolean frontfacing ) { /* x/y positions in fixed point */ - const int x1 = subpixel_snap(v1[0][0]); - const int x2 = subpixel_snap(v2[0][0]); - const int x3 = subpixel_snap(v3[0][0]); - const int y1 = subpixel_snap(v1[0][1]); - const int y2 = subpixel_snap(v2[0][1]); - const int y3 = subpixel_snap(v3[0][1]); + const int x1 = subpixel_snap(v1[0][0] + 0.5 - setup->pixel_offset); + const int x2 = subpixel_snap(v2[0][0] + 0.5 - setup->pixel_offset); + const int x3 = subpixel_snap(v3[0][0] + 0.5 - setup->pixel_offset); + const int y1 = subpixel_snap(v1[0][1] + 0.5 - setup->pixel_offset); + const int y2 = subpixel_snap(v2[0][1] + 0.5 - setup->pixel_offset); + const int y3 = subpixel_snap(v3[0][1] + 0.5 - setup->pixel_offset); struct lp_scene *scene = lp_setup_get_current_scene(setup); struct lp_rast_triangle *tri; @@ -565,7 +570,7 @@ do_triangle_ccw(struct setup_context *setup, } -static void triangle_cw( struct setup_context *setup, +static void triangle_cw( struct lp_setup_context *setup, const float (*v0)[4], const float (*v1)[4], const float (*v2)[4] ) @@ -574,7 +579,7 @@ static void triangle_cw( struct setup_context *setup, } -static void triangle_ccw( struct setup_context *setup, +static void triangle_ccw( struct lp_setup_context *setup, const float (*v0)[4], const float (*v1)[4], const float (*v2)[4] ) @@ -583,7 +588,7 @@ static void triangle_ccw( struct setup_context *setup, } -static void triangle_both( struct setup_context *setup, +static void triangle_both( struct lp_setup_context *setup, const float (*v0)[4], const float (*v1)[4], const float (*v2)[4] ) @@ -602,7 +607,7 @@ static void triangle_both( struct setup_context *setup, } -static void triangle_nop( struct setup_context *setup, +static void triangle_nop( struct lp_setup_context *setup, const float (*v0)[4], const float (*v1)[4], const float (*v2)[4] ) @@ -611,7 +616,7 @@ static void triangle_nop( struct setup_context *setup, void -lp_setup_choose_triangle( struct setup_context *setup ) +lp_setup_choose_triangle( struct lp_setup_context *setup ) { switch (setup->cullmode) { case PIPE_WINDING_NONE: |