altos/draw: Add transforms to polygon code

[fw/altos] / src / draw / ao_pattern.c

diff --git a/src/draw/ao_pattern.c b/src/draw/ao_pattern.c
index 4d8c42c8bccf88709f46e857da75627f9cd34f9b..892fc49fb58e5ceca084e402a5f96b1e31070bc7 100644 (file)
--- a/src/draw/ao_pattern.c
+++ b/src/draw/ao_pattern.c
@@ -21,7 +21,7 @@ ao_pattern_expand(uint8_t v, uint8_t rot)
        uint32_t        r;
 
        if (rot)
-               v = ao_left(v, 8-rot) | ao_right(v, rot);
+               v = (uint8_t) ao_left(v, 8-rot) | (uint8_t) ao_right(v, rot);
        r = v;
        return (r << 24) | (r << 16) | (r << 8) | (r);
 }
@@ -53,17 +53,17 @@ ao_pattern(const struct ao_bitmap   *dst,
        ao_clip(y2, 0, dst->height);
 
        if (x < x2 && y < y2) {
-               int     xrot = (x - pat_x) & 7;
-               int     yrot = (y - pat_y) & 7;
-               int     i;
+               uint8_t xrot = (x - pat_x) & 7;
+               uint8_t yrot = (y - pat_y) & 7;
+               uint8_t i;
                int16_t dst_x, dst_y;
 
                for (i = 0; i < 8; i++)
                        pat[(i + yrot) & 7] = ao_pattern_expand(pattern->pattern[i], xrot);
                for (dst_y = y; dst_y < y2; dst_y += 8) {
-                       int     h = min(y2 - dst_y, 8);
+                       int16_t h = (int16_t) min(y2 - dst_y, 8);
                        for (dst_x = x; dst_x < x2; dst_x += 8) {
-                               int     w = min(x2 - dst_x, 8);
+                               int16_t w = (int16_t) min(x2 - dst_x, 8);
 
                                ao_blt(pat, 1, 0,
                                       dst->base + dst_y * dst->stride,