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author | marha <marha@users.sourceforge.net> | 2011-10-26 10:58:41 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2011-10-26 10:58:41 +0200 |
commit | 4f005bade376d15ee60e90ca45a831aff9725087 (patch) | |
tree | 5abdbe5a7c55acf9e30c533414796f629fa9e47c /pixman/pixman | |
parent | 9f986778bd4393c5a9108426969d45aa7f10f334 (diff) | |
download | vcxsrv-4f005bade376d15ee60e90ca45a831aff9725087.tar.gz vcxsrv-4f005bade376d15ee60e90ca45a831aff9725087.tar.bz2 vcxsrv-4f005bade376d15ee60e90ca45a831aff9725087.zip |
libX11 libXft mesa mkfontscale pixman xserver git update 26 okt 2011
Diffstat (limited to 'pixman/pixman')
-rw-r--r-- | pixman/pixman/pixman-gradient-walker.c | 175 | ||||
-rw-r--r-- | pixman/pixman/pixman-image.c | 73 | ||||
-rw-r--r-- | pixman/pixman/pixman-private.h | 16 |
3 files changed, 121 insertions, 143 deletions
diff --git a/pixman/pixman/pixman-gradient-walker.c b/pixman/pixman/pixman-gradient-walker.c index dd666b412..048039e89 100644 --- a/pixman/pixman/pixman-gradient-walker.c +++ b/pixman/pixman/pixman-gradient-walker.c @@ -31,7 +31,7 @@ void _pixman_gradient_walker_init (pixman_gradient_walker_t *walker, gradient_t * gradient, - unsigned int spread) + pixman_repeat_t repeat) { walker->num_stops = gradient->n_stops; walker->stops = gradient->stops; @@ -42,112 +42,54 @@ _pixman_gradient_walker_init (pixman_gradient_walker_t *walker, walker->left_rb = 0; walker->right_ag = 0; walker->right_rb = 0; - walker->spread = spread; + walker->repeat = repeat; walker->need_reset = TRUE; } -void -_pixman_gradient_walker_reset (pixman_gradient_walker_t *walker, - pixman_fixed_32_32_t pos) +static void +gradient_walker_reset (pixman_gradient_walker_t *walker, + pixman_fixed_48_16_t pos) { int32_t x, left_x, right_x; - pixman_color_t *left_c, *right_c; + pixman_color_t *left_c, *right_c; int n, count = walker->num_stops; - pixman_gradient_stop_t * stops = walker->stops; - - static const pixman_color_t transparent_black = { 0, 0, 0, 0 }; + pixman_gradient_stop_t *stops = walker->stops; - switch (walker->spread) + if (walker->repeat == PIXMAN_REPEAT_NORMAL) { - case PIXMAN_REPEAT_NORMAL: - x = (int32_t)pos & 0xFFFF; - for (n = 0; n < count; n++) - if (x < stops[n].x) - break; - if (n == 0) - { - left_x = stops[count - 1].x - 0x10000; - left_c = &stops[count - 1].color; - } - else - { - left_x = stops[n - 1].x; - left_c = &stops[n - 1].color; - } - - if (n == count) - { - right_x = stops[0].x + 0x10000; - right_c = &stops[0].color; - } - else - { - right_x = stops[n].x; - right_c = &stops[n].color; - } - left_x += (pos - x); - right_x += (pos - x); - break; - - case PIXMAN_REPEAT_PAD: - for (n = 0; n < count; n++) - if (pos < stops[n].x) - break; - - if (n == 0) - { - left_x = INT32_MIN; - left_c = &stops[0].color; - } - else - { - left_x = stops[n - 1].x; - left_c = &stops[n - 1].color; - } - - if (n == count) - { - right_x = INT32_MAX; - right_c = &stops[n - 1].color; - } - else - { - right_x = stops[n].x; - right_c = &stops[n].color; - } - break; - - case PIXMAN_REPEAT_REFLECT: - x = (int32_t)pos & 0xFFFF; + x = (int32_t)pos & 0xffff; + } + else if (walker->repeat == PIXMAN_REPEAT_REFLECT) + { + x = (int32_t)pos & 0xffff; if ((int32_t)pos & 0x10000) x = 0x10000 - x; - for (n = 0; n < count; n++) - if (x < stops[n].x) - break; - - if (n == 0) - { - left_x = -stops[0].x; - left_c = &stops[0].color; - } - else - { - left_x = stops[n - 1].x; - left_c = &stops[n - 1].color; - } - - if (n == count) - { - right_x = 0x20000 - stops[n - 1].x; - right_c = &stops[n - 1].color; - } - else - { - right_x = stops[n].x; - right_c = &stops[n].color; - } - + } + else + { + x = pos; + } + + for (n = 0; n < count; n++) + { + if (x < stops[n].x) + break; + } + + left_x = stops[n - 1].x; + left_c = &stops[n - 1].color; + + right_x = stops[n].x; + right_c = &stops[n].color; + + if (walker->repeat == PIXMAN_REPEAT_NORMAL) + { + left_x += (pos - x); + right_x += (pos - x); + } + else if (walker->repeat == PIXMAN_REPEAT_REFLECT) + { if ((int32_t)pos & 0x10000) { pixman_color_t *tmp_c; @@ -165,32 +107,6 @@ _pixman_gradient_walker_reset (pixman_gradient_walker_t *walker, } left_x += (pos - x); right_x += (pos - x); - break; - - default: /* REPEAT_NONE */ - for (n = 0; n < count; n++) - if (pos < stops[n].x) - break; - - if (n == 0) - { - left_x = INT32_MIN; - right_x = stops[0].x; - left_c = right_c = (pixman_color_t*) &transparent_black; - } - else if (n == count) - { - left_x = stops[n - 1].x; - right_x = INT32_MAX; - left_c = right_c = (pixman_color_t*) &transparent_black; - } - else - { - left_x = stops[n - 1].x; - right_x = stops[n].x; - left_c = &stops[n - 1].color; - right_c = &stops[n].color; - } } walker->left_x = left_x; @@ -201,8 +117,8 @@ _pixman_gradient_walker_reset (pixman_gradient_walker_t *walker, walker->right_rb = ((right_c->red & 0xff00) << 8) | (right_c->blue >> 8); if (walker->left_x == walker->right_x || - ( walker->left_ag == walker->right_ag && - walker->left_rb == walker->right_rb ) ) + (walker->left_ag == walker->right_ag && + walker->left_rb == walker->right_rb)) { walker->stepper = 0; } @@ -215,20 +131,15 @@ _pixman_gradient_walker_reset (pixman_gradient_walker_t *walker, walker->need_reset = FALSE; } -#define PIXMAN_GRADIENT_WALKER_NEED_RESET(w, x) \ - ( (w)->need_reset || (x) < (w)->left_x || (x) >= (w)->right_x) - - -/* the following assumes that PIXMAN_GRADIENT_WALKER_NEED_RESET(w,x) is FALSE */ uint32_t _pixman_gradient_walker_pixel (pixman_gradient_walker_t *walker, - pixman_fixed_32_32_t x) + pixman_fixed_48_16_t x) { int dist, idist; uint32_t t1, t2, a, color; - if (PIXMAN_GRADIENT_WALKER_NEED_RESET (walker, x)) - _pixman_gradient_walker_reset (walker, x); + if (walker->need_reset || x < walker->left_x || x >= walker->right_x) + gradient_walker_reset (walker, x); dist = ((int)(x - walker->left_x) * walker->stepper) >> 16; idist = 256 - dist; diff --git a/pixman/pixman/pixman-image.c b/pixman/pixman/pixman-image.c index afe587f31..09d7cbc4e 100644 --- a/pixman/pixman/pixman-image.c +++ b/pixman/pixman/pixman-image.c @@ -31,6 +31,50 @@ #include "pixman-private.h" +static const pixman_color_t transparent_black = { 0, 0, 0, 0 }; + +static void +gradient_property_changed (pixman_image_t *image) +{ + gradient_t *gradient = &image->gradient; + int n = gradient->n_stops; + pixman_gradient_stop_t *stops = gradient->stops; + pixman_gradient_stop_t *begin = &(gradient->stops[-1]); + pixman_gradient_stop_t *end = &(gradient->stops[n]); + + switch (gradient->common.repeat) + { + default: + case PIXMAN_REPEAT_NONE: + begin->x = INT32_MIN; + begin->color = transparent_black; + end->x = INT32_MAX; + end->color = transparent_black; + break; + + case PIXMAN_REPEAT_NORMAL: + begin->x = stops[n - 1].x - pixman_fixed_1; + begin->color = stops[n - 1].color; + end->x = stops[0].x + pixman_fixed_1; + end->color = stops[0].color; + break; + + case PIXMAN_REPEAT_REFLECT: + begin->x = - stops[0].x; + begin->color = stops[0].color; + end->x = pixman_int_to_fixed (2) - stops[n - 1].x; + end->color = stops[n - 1].color; + break; + + case PIXMAN_REPEAT_PAD: + begin->x = INT32_MIN; + begin->color = stops[0].color; + end->x = INT32_MAX; + end->color = stops[n - 1].color; + break; + } +} + pixman_bool_t _pixman_init_gradient (gradient_t * gradient, const pixman_gradient_stop_t *stops, @@ -38,14 +82,27 @@ _pixman_init_gradient (gradient_t * gradient, { return_val_if_fail (n_stops > 0, FALSE); - gradient->stops = pixman_malloc_ab (n_stops, sizeof (pixman_gradient_stop_t)); + /* We allocate two extra stops, one before the beginning of the stop list, + * and one after the end. These stops are initialized to whatever color + * would be used for positions outside the range of the stop list. + * + * This saves a bit of computation in the gradient walker. + * + * The pointer we store in the gradient_t struct still points to the + * first user-supplied struct, so when freeing, we will have to + * subtract one. + */ + gradient->stops = + pixman_malloc_ab (n_stops + 2, sizeof (pixman_gradient_stop_t)); if (!gradient->stops) return FALSE; + gradient->stops += 1; memcpy (gradient->stops, stops, n_stops * sizeof (pixman_gradient_stop_t)); - gradient->n_stops = n_stops; + gradient->common.property_changed = gradient_property_changed; + return TRUE; } @@ -102,7 +159,17 @@ _pixman_image_fini (pixman_image_t *image) image->type == CONICAL) { if (image->gradient.stops) - free (image->gradient.stops); + { + /* See _pixman_init_gradient() for an explanation of the - 1 */ + free (image->gradient.stops - 1); + } + + /* This will trigger if someone adds a property_changed + * method to the linear/radial/conical gradient overwriting + * the general one. + */ + assert ( + image->common.property_changed == gradient_property_changed); } if (image->type == BITS && image->bits.free_me) diff --git a/pixman/pixman/pixman-private.h b/pixman/pixman/pixman-private.h index cbd48f3d1..1443bfb3d 100644 --- a/pixman/pixman/pixman-private.h +++ b/pixman/pixman/pixman-private.h @@ -299,29 +299,29 @@ typedef struct uint32_t left_rb; uint32_t right_ag; uint32_t right_rb; - int32_t left_x; - int32_t right_x; - int32_t stepper; + pixman_fixed_t left_x; + pixman_fixed_t right_x; + pixman_fixed_t stepper; pixman_gradient_stop_t *stops; int num_stops; - unsigned int spread; + pixman_repeat_t repeat; - int need_reset; + pixman_bool_t need_reset; } pixman_gradient_walker_t; void _pixman_gradient_walker_init (pixman_gradient_walker_t *walker, gradient_t * gradient, - unsigned int spread); + pixman_repeat_t repeat); void _pixman_gradient_walker_reset (pixman_gradient_walker_t *walker, - pixman_fixed_32_32_t pos); + pixman_fixed_48_16_t pos); uint32_t _pixman_gradient_walker_pixel (pixman_gradient_walker_t *walker, - pixman_fixed_32_32_t x); + pixman_fixed_48_16_t x); /* * Edges |