diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup.c | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup.c b/src/gallium/drivers/llvmpipe/lp_setup.c index 191206ba87..736241aede 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup.c +++ b/src/gallium/drivers/llvmpipe/lp_setup.c @@ -388,19 +388,19 @@ emit_quad_job( struct setup_context *setup, uint thread, struct quad_job *job ) emit_quad( setup, &quad, thread ); } -#define EMIT_QUAD(setup,x,y,mask) do {\ +#define EMIT_QUAD(setup,x,y,qmask) do {\ setup->quad.input.x0 = x;\ setup->quad.input.y0 = y;\ - setup->quad.inout.mask = mask;\ + setup->quad.inout.mask = qmask;\ add_quad_job( &setup->que, &setup->quad, emit_quad_job );\ } while (0) #else -#define EMIT_QUAD(setup,x,y,mask) do {\ +#define EMIT_QUAD(setup,x,y,qmask) do {\ setup->quad.input.x0 = x;\ setup->quad.input.y0 = y;\ - setup->quad.inout.mask = mask;\ + setup->quad.inout.mask = qmask;\ emit_quad( setup, &setup->quad, 0 );\ } while (0) @@ -421,29 +421,42 @@ static INLINE int block( int x ) */ static void flush_spans( struct setup_context *setup ) { + const int step = 30; const int xleft0 = setup->span.left[0]; const int xleft1 = setup->span.left[1]; const int xright0 = setup->span.right[0]; const int xright1 = setup->span.right[1]; - int minleft, maxright; + + int minleft = block(MIN2(xleft0, xleft1)); + int maxright = MAX2(xright0, xright1); int x; - minleft = block(MIN2(xleft0, xleft1)); - maxright = block(MAX2(xright0, xright1)); - - for (x = minleft; x <= maxright; x += 2) { - /* determine which of the four pixels is inside the span bounds */ - uint mask = 0x0; - if (x >= xleft0 && x < xright0) - mask |= MASK_TOP_LEFT; - if (x >= xleft1 && x < xright1) - mask |= MASK_BOTTOM_LEFT; - if (x+1 >= xleft0 && x+1 < xright0) - mask |= MASK_TOP_RIGHT; - if (x+1 >= xleft1 && x+1 < xright1) - mask |= MASK_BOTTOM_RIGHT; - if (mask) - EMIT_QUAD( setup, x, setup->span.y, mask ); + for (x = minleft; x < maxright; x += step) { + unsigned skip_left0 = CLAMP(xleft0 - x, 0, step); + unsigned skip_left1 = CLAMP(xleft1 - x, 0, step); + unsigned skip_right0 = CLAMP(x + step - xright0, 0, step); + unsigned skip_right1 = CLAMP(x + step - xright1, 0, step); + unsigned lx = x; + + unsigned skipmask_left0 = (1U << skip_left0) - 1U; + unsigned skipmask_left1 = (1U << skip_left1) - 1U; + + /* These calculations fail when step == 32 and skip_right == 0. + */ + unsigned skipmask_right0 = ~0U << (unsigned)(step - skip_right0); + unsigned skipmask_right1 = ~0U << (unsigned)(step - skip_right1); + + unsigned mask0 = ~skipmask_left0 & ~skipmask_right0; + unsigned mask1 = ~skipmask_left1 & ~skipmask_right1; + + while (mask0 | mask1) { + unsigned quadmask = (mask0 & 3) | ((mask1 & 3) << 2); + if (quadmask) + EMIT_QUAD( setup, lx, setup->span.y, quadmask ); + mask0 >>= 2; + mask1 >>= 2; + lx += 2; + } } @@ -451,8 +464,8 @@ static void flush_spans( struct setup_context *setup ) setup->span.y_flags = 0; setup->span.right[0] = 0; setup->span.right[1] = 0; - setup->span.left[0] = 1; /* greater than right[0] */ - setup->span.left[1] = 1; /* greater than right[1] */ + setup->span.left[0] = 1000000; /* greater than right[0] */ + setup->span.left[1] = 1000000; /* greater than right[1] */ } @@ -810,11 +823,10 @@ static void subtriangle( struct setup_context *setup, /* clip top/bottom */ start_y = sy; - finish_y = sy + lines; - if (start_y < miny) start_y = miny; + finish_y = sy + lines; if (finish_y > maxy) finish_y = maxy; @@ -1495,6 +1507,9 @@ struct setup_context *setup_create_context( struct llvmpipe_context *llvmpipe ) setup->quad.coef = setup->coef; setup->quad.posCoef = &setup->posCoef; + setup->span.left[0] = 1000000; /* greater than right[0] */ + setup->span.left[1] = 1000000; /* greater than right[1] */ + #if LP_NUM_QUAD_THREADS > 1 setup->que.first = 0; setup->que.last = 0; |