Attached is a small patch to address the 'images with borders'
scaling issue mentioned earlier.
jose.
Index: e17/libs/evas/src/lib/engines/common/evas_scale_smooth_scaler_up.c
===================================================================
RCS file: /var/cvs/e/e17/libs/evas/src/lib/engines/common/evas_scale_smooth_scaler_up.c,v
retrieving revision 1.6
diff -u -r1.6 evas_scale_smooth_scaler_up.c
--- e17/libs/evas/src/lib/engines/common/evas_scale_smooth_scaler_up.c 2 May 2006 07:28:47 -0000 1.6
+++ e17/libs/evas/src/lib/engines/common/evas_scale_smooth_scaler_up.c 13 Jun 2006 03:13:39 -0000
@@ -132,7 +132,8 @@
}
}
- src_end = src_data + (src_w * src_h) - 1;
+// src_end = src_data + (src_w * src_h) - 1;
+ src_end = src_data + (src_w * (src_region_y + src_region_h)) - 1;
if (dc->mul.use)
func = evas_common_gfx_func_composite_pixel_color_span_get(src, dc->mul.col, dst, dst_clip_w, dc->render_op);
else
@@ -148,8 +149,7 @@
if (src->flags & RGBA_IMAGE_HAS_ALPHA)
{
int k, px, i, pv;
- DATA8 p1r = 0, p1g = 0, p1b = 0, p1a = 0;
- DATA8 p2r = 0, p2g = 0, p2b = 0, p2a = 0;
+ DATA32 p1 = 0, p2 = 0;
DATA32 *lptr1, *lptr2;
while (dst_clip_h--)
@@ -163,10 +163,7 @@
lp = lin_ptr; ix = interp_x;
ptr = lptr1 + *lp;
ptr2 = lptr2 + *lp;
- p2r = R_VAL(ptr) + ((k * (R_VAL(ptr2) - R_VAL(ptr))) >> 8);
- p2g = G_VAL(ptr) + ((k * (G_VAL(ptr2) - G_VAL(ptr))) >> 8);
- p2b = B_VAL(ptr) + ((k * (B_VAL(ptr2) - B_VAL(ptr))) >> 8);
- p2a = A_VAL(ptr) + ((k * (A_VAL(ptr2) - A_VAL(ptr))) >> 8);
+ p2 = INTERP_256(k, *ptr2, *ptr);
pv = 1;
px = -1;
while (dst_clip_w--)
@@ -179,7 +176,8 @@
ptr2 = ptr + 1;
ptr3 = lptr2 + px;
ptr4 = ptr3 + 1;
- if (px >= (src_w - 1))
+// if (px >= (src_w - 1))
+ if (px >= (src_region_x + src_region_w - 1))
{
ptr2 = ptr;
ptr4 = ptr3;
@@ -187,41 +185,24 @@
if ((*ptr | *ptr2 | *ptr3 | *ptr4) & 0xff000000)
{
- if (pv)
- {
- p1r = p2r;
- p1g = p2g;
- p1b = p2b;
- p1a = p2a;
- }
- else
- {
- p1r = R_VAL(ptr) + ((k * (R_VAL(ptr3) - R_VAL(ptr))) >> 8);
- p1g = G_VAL(ptr) + ((k * (G_VAL(ptr3) - G_VAL(ptr))) >> 8);
- p1b = B_VAL(ptr) + ((k * (B_VAL(ptr3) - B_VAL(ptr))) >> 8);
- p1a = A_VAL(ptr) + ((k * (A_VAL(ptr3) - A_VAL(ptr))) >> 8);
- }
- p2r = R_VAL(ptr2) + ((k * (R_VAL(ptr4) - R_VAL(ptr2))) >> 8);
- p2g = G_VAL(ptr2) + ((k * (G_VAL(ptr4) - G_VAL(ptr2))) >> 8);
- p2b = B_VAL(ptr2) + ((k * (B_VAL(ptr4) - B_VAL(ptr2))) >> 8);
- p2a = A_VAL(ptr2) + ((k * (A_VAL(ptr4) - A_VAL(ptr2))) >> 8);
+ p1 = p2;
+ if (!pv)
+ p1 = INTERP_256(k, *ptr3, *ptr);
+ p2 = INTERP_256(k, *ptr4, *ptr2);
pv = 1;
}
else
{
pv = 0;
- p1a = p2a = 0;
+ p1 = p2 = 0;
}
}
*dst_ptr = 0;
- if (p1a | p2a)
+ if ((p1 | p2) & 0xff000000)
{
i = *ix;
- R_VAL(dst_ptr) = p1r + ((i * (p2r - p1r)) >> 8);
- G_VAL(dst_ptr) = p1g + ((i * (p2g - p1g)) >> 8);
- B_VAL(dst_ptr) = p1b + ((i * (p2b - p1b)) >> 8);
- A_VAL(dst_ptr) = p1a + ((i * (p2a - p1a)) >> 8);
+ *dst_ptr = INTERP_256(i, p2, p1);
}
dst_ptr++; ix++; lp++;
@@ -235,8 +216,7 @@
else
{
int k, px, i;
- DATA8 p1r = 0, p1g = 0, p1b = 0;
- DATA8 p2r = 0, p2g = 0, p2b = 0;
+ DATA32 p1 = 0, p2 = 0;
DATA32 *lptr1, *lptr2;
#ifdef DIRECT_SCALE
@@ -255,9 +235,7 @@
lp = lin_ptr; ix = interp_x;
ptr = lptr1 + *lp;
ptr2 = lptr2 + *lp;
- p2r = R_VAL(ptr) + ((k * (R_VAL(ptr2) - R_VAL(ptr))) >> 8);
- p2g = G_VAL(ptr) + ((k * (G_VAL(ptr2) - G_VAL(ptr))) >> 8);
- p2b = B_VAL(ptr) + ((k * (B_VAL(ptr2) - B_VAL(ptr))) >> 8);
+ p2 = INTERP_RGB_256(k, *ptr2, *ptr);
px = -1;
while (dst_clip_w--)
{
@@ -267,23 +245,17 @@
ptr2 = lptr1 + px + 1;
ptr4 = lptr2 + px + 1;
- if (px >= (src_w - 1))
+// if (px >= (src_w - 1))
+ if (px >= (src_region_x + src_region_w - 1))
{
ptr2--;
ptr4--;
}
- p1r = p2r;
- p1g = p2g;
- p1b = p2b;
- p2r = R_VAL(ptr2) + ((k * (R_VAL(ptr4) - R_VAL(ptr2))) >> 8);
- p2g = G_VAL(ptr2) + ((k * (G_VAL(ptr4) - G_VAL(ptr2))) >> 8);
- p2b = B_VAL(ptr2) + ((k * (B_VAL(ptr4) - B_VAL(ptr2))) >> 8);
+ p1 = p2;
+ p2 = INTERP_RGB_256(k, *ptr4, *ptr2);
}
i = *ix;
- R_VAL(dst_ptr) = p1r + ((i * (p2r - p1r)) >> 8);
- G_VAL(dst_ptr) = p1g + ((i * (p2g - p1g)) >> 8);
- B_VAL(dst_ptr) = p1b + ((i * (p2b - p1b)) >> 8);
-// A_VAL(dst_ptr) = 0xff;
+ *dst_ptr = 0xff000000 | INTERP_RGB_256(i, p2, p1);
dst_ptr++; ix++; lp++;
}
@@ -305,9 +277,7 @@
lp = lin_ptr; ix = interp_x;
ptr = lptr1 + *lp;
ptr2 = lptr2 + *lp;
- p2r = R_VAL(ptr) + ((k * (R_VAL(ptr2) - R_VAL(ptr))) >> 8);
- p2g = G_VAL(ptr) + ((k * (G_VAL(ptr2) - G_VAL(ptr))) >> 8);
- p2b = B_VAL(ptr) + ((k * (B_VAL(ptr2) - B_VAL(ptr))) >> 8);
+ p2 = INTERP_RGB_256(k, *ptr2, *ptr);
px = -1;
while (dst_clip_w--)
{
@@ -317,23 +287,17 @@
ptr2 = lptr1 + px + 1;
ptr4 = lptr2 + px + 1;
- if (px >= (src_w - 1))
+// if (px >= (src_w - 1))
+ if (px >= (src_region_x + src_region_w - 1))
{
ptr2--;
ptr4--;
}
- p1r = p2r;
- p1g = p2g;
- p1b = p2b;
- p2r = R_VAL(ptr2) + ((k * (R_VAL(ptr4) - R_VAL(ptr2))) >> 8);
- p2g = G_VAL(ptr2) + ((k * (G_VAL(ptr4) - G_VAL(ptr2))) >> 8);
- p2b = B_VAL(ptr2) + ((k * (B_VAL(ptr4) - B_VAL(ptr2))) >> 8);
+ p1 = p2;
+ p2 = INTERP_RGB_256(k, *ptr4, *ptr2);
}
i = *ix;
- R_VAL(dst_ptr) = p1r + ((i * (p2r - p1r)) >> 8);
- G_VAL(dst_ptr) = p1g + ((i * (p2g - p1g)) >> 8);
- B_VAL(dst_ptr) = p1b + ((i * (p2b - p1b)) >> 8);
- A_VAL(dst_ptr) = 0xff;
+ *dst_ptr = 0xff000000 | INTERP_RGB_256(i, p2, p1);
dst_ptr++; ix++; lp++;
}
@@ -379,7 +343,8 @@
ptr2 = ptr + 1;
ptr3 = lptr2 + px;
ptr4 = ptr3 + 1;
- if (px >= (src_w - 1))
+// if (px >= (src_w - 1))
+ if (px >= (src_region_x + src_region_w - 1))
{
ptr2 = ptr;
ptr4 = ptr3;
@@ -505,7 +470,8 @@
ptr2 = lptr1 + px + 1;
ptr4 = lptr2 + px + 1;
- if (px >= (src_w - 1))
+// if (px >= (src_w - 1))
+ if (px >= (src_region_x + src_region_w - 1))
{
ptr2--;
ptr4--;
@@ -601,7 +567,8 @@
ptr2 = lptr1 + px + 1;
ptr4 = lptr2 + px + 1;
- if (px >= (src_w - 1))
+// if (px >= (src_w - 1))
+ if (px >= (src_region_x + src_region_w - 1))
{
ptr2--;
ptr4--;
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