diff options
Diffstat (limited to 'pixman/pixman-linear-gradient.c')
| -rw-r--r-- | pixman/pixman-linear-gradient.c | 47 |
1 files changed, 26 insertions, 21 deletions
diff --git a/pixman/pixman-linear-gradient.c b/pixman/pixman-linear-gradient.c index 40c8c9f..3f52850 100644 --- a/pixman/pixman-linear-gradient.c +++ b/pixman/pixman-linear-gradient.c @@ -89,8 +89,11 @@ linear_gradient_is_horizontal (pixman_image_t *image, } static uint32_t * -linear_get_scanline_narrow (pixman_iter_t *iter, - const uint32_t *mask) +linear_get_scanline (pixman_iter_t *iter, + const uint32_t *mask, + int Bpp, + pixman_gradient_walker_write_t write_pixel, + pixman_gradient_walker_fill_t fill_pixel) { pixman_image_t *image = iter->image; int x = iter->x; @@ -103,7 +106,7 @@ linear_get_scanline_narrow (pixman_iter_t *iter, pixman_fixed_48_16_t dx, dy; gradient_t *gradient = (gradient_t *)image; linear_gradient_t *linear = (linear_gradient_t *)image; - uint32_t *end = buffer + width; + uint32_t *end = buffer + width * (Bpp / 4); pixman_gradient_walker_t walker; _pixman_gradient_walker_init (&walker, gradient, image->common.repeat); @@ -137,7 +140,7 @@ linear_get_scanline_narrow (pixman_iter_t *iter, if (l == 0 || unit.vector[2] == 0) { /* affine transformation only */ - pixman_fixed_32_32_t t, next_inc; + pixman_fixed_32_32_t t, next_inc; double inc; if (l == 0 || v.vector[2] == 0) @@ -152,7 +155,7 @@ linear_get_scanline_narrow (pixman_iter_t *iter, invden = pixman_fixed_1 * (double) pixman_fixed_1 / (l * (double) v.vector[2]); v2 = v.vector[2] * (1. / pixman_fixed_1); - t = ((dx * v.vector[0] + dy * v.vector[1]) - + t = ((dx * v.vector[0] + dy * v.vector[1]) - (dx * linear->p1.x + dy * linear->p1.y) * v2) * invden; inc = (dx * unit.vector[0] + dy * unit.vector[1]) * invden; } @@ -160,11 +163,7 @@ linear_get_scanline_narrow (pixman_iter_t *iter, if (((pixman_fixed_32_32_t )(inc * width)) == 0) { - register uint32_t color; - - color = _pixman_gradient_walker_pixel (&walker, t); - while (buffer < end) - *buffer++ = color; + fill_pixel (&walker, t, buffer, end); } else { @@ -175,12 +174,11 @@ linear_get_scanline_narrow (pixman_iter_t *iter, { if (!mask || *mask++) { - *buffer = _pixman_gradient_walker_pixel (&walker, - t + next_inc); + write_pixel (&walker, t + next_inc, buffer); } i++; next_inc = inc * i; - buffer++; + buffer += (Bpp / 4); } } } @@ -202,14 +200,14 @@ linear_get_scanline_narrow (pixman_iter_t *iter, invden = pixman_fixed_1 * (double) pixman_fixed_1 / (l * (double) v.vector[2]); v2 = v.vector[2] * (1. / pixman_fixed_1); - t = ((dx * v.vector[0] + dy * v.vector[1]) - + t = ((dx * v.vector[0] + dy * v.vector[1]) - (dx * linear->p1.x + dy * linear->p1.y) * v2) * invden; } - *buffer = _pixman_gradient_walker_pixel (&walker, t); + write_pixel (&walker, t, buffer); } - ++buffer; + buffer += (Bpp / 4); v.vector[0] += unit.vector[0]; v.vector[1] += unit.vector[1]; @@ -223,14 +221,21 @@ linear_get_scanline_narrow (pixman_iter_t *iter, } static uint32_t * -linear_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask) +linear_get_scanline_narrow (pixman_iter_t *iter, + const uint32_t *mask) { - uint32_t *buffer = linear_get_scanline_narrow (iter, NULL); + return linear_get_scanline (iter, mask, 4, + _pixman_gradient_walker_write_narrow, + _pixman_gradient_walker_fill_narrow); +} - pixman_expand_to_float ( - (argb_t *)buffer, buffer, PIXMAN_a8r8g8b8, iter->width); - return buffer; +static uint32_t * +linear_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask) +{ + return linear_get_scanline (iter, NULL, 16, + _pixman_gradient_walker_write_wide, + _pixman_gradient_walker_fill_wide); } void |