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Fixing gradient repeat mode computations in previous patch. From David 

Turner.
This commit is contained in:
Soren Sandmann Pedersen 2007-04-20 14:34:13 -04:00
parent 38f718799c
commit c1b73f0f2a
1 changed files with 18 additions and 19 deletions
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37
fb/fbcompose.c
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@ -2916,13 +2916,15 @@ _gradient_walker_reset (GradientWalker *walker,
xRenderColor *tmp_c;
int32_t tmp_x;
tmp_x = 0x20000 - right_x;
right_x = 0x20000 - left_x;
tmp_x = 0x10000 - right_x;
right_x = 0x10000 - left_x;
left_x = tmp_x;
tmp_c = right_c;
right_c = left_c;
left_c = tmp_c;
x = 0x10000 - x;
}
left_x += (pos - x);
right_x += (pos - x);
@ -3074,14 +3076,14 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
color = _gradient_walker_pixel( &walker, t );
while (buffer < end)
*buffer++ = color;
WRITE(buffer++, color);
}
else
{
if (!mask) {
while (buffer < end)
{
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
buffer += 1;
t += inc;
}
@ -3089,7 +3091,7 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
while (buffer < end) {
if (*mask++ & maskBits)
{
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
}
buffer += 1;
t += inc;
@ -3118,12 +3120,9 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
t = ((a * x + b * y) >> 16) + off;
}
#if 0
color = gradientPixel (pGradient, t, pict->repeat);
#endif
color = _gradient_walker_pixel( &walker, t );
while (buffer < end)
*buffer++ = color;
WRITE(buffer++, color);
}
else
{
@ -3139,7 +3138,7 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
y = ((xFixed_48_16)v.vector[1] << 16) / v.vector[2];
t = ((a*x + b*y) >> 16) + off;
}
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
}
++buffer;
v.vector[0] += unit.vector[0];
@ -3195,7 +3194,7 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
t = (xFixed_48_16)((s*pGradient->radial.m + pGradient->radial.b)*65536);
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
}
++buffer;
@ -3225,7 +3224,7 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
s = (-b + sqrt(det))/(2. * pGradient->radial.a);
t = (xFixed_48_16)((s*pGradient->radial.m + pGradient->radial.b)*65536);
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
}
++buffer;
@ -3250,7 +3249,7 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
angle = atan2(ry, rx) + a;
t = (xFixed_48_16) (angle * (65536. / (2*M_PI)));
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
}
++buffer;
@ -3277,7 +3276,7 @@ static void fbFetchSourcePict(PicturePtr pict, int x, int y, int width, CARD32 *
angle = atan2(y, x) + a;
t = (xFixed_48_16) (angle * (65536. / (2*M_PI)));
*buffer = _gradient_walker_pixel (&walker, t);
WRITE(buffer, _gradient_walker_pixel (&walker, t));
}
++buffer;
@ -3342,7 +3341,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
if (!mask || mask[i] & maskBits)
{
if (!v.vector[2]) {
buffer[i] = 0;
WRITE(buffer + i, 0);
} else {
if (!affine) {
y = MOD(DIV(v.vector[1],v.vector[2]), pict->pDrawable->height);
@ -3351,7 +3350,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
y = MOD(v.vector[1]>>16, pict->pDrawable->height);
x = MOD(v.vector[0]>>16, pict->pDrawable->width);
}
buffer[i] = fetch(bits + (y + dy)*stride, x + dx, indexed);
WRITE(buffer + i, fetch(bits + (y + dy)*stride, x + dx, indexed));
}
}
@ -3364,7 +3363,7 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
if (!mask || mask[i] & maskBits)
{
if (!v.vector[2]) {
buffer[i] = 0;
WRITE(buffer + i, 0);
} else {
if (!affine) {
y = MOD(DIV(v.vector[1],v.vector[2]), pict->pDrawable->height);
@ -3374,9 +3373,9 @@ static void fbFetchTransformed(PicturePtr pict, int x, int y, int width, CARD32
x = MOD(v.vector[0]>>16, pict->pDrawable->width);
}
if (POINT_IN_REGION (0, pict->pCompositeClip, x, y, &box))
buffer[i] = fetch(bits + (y + dy)*stride, x + dx, indexed);
WRITE(buffer + i, fetch(bits + (y + dy)*stride, x + dx, indexed));
else
buffer[i] = 0;
WRITE(buffer + i, 0);
}
}