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path: root/source/blender/imbuf/intern/dds/ColorBlock.cpp
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-rw-r--r--source/blender/imbuf/intern/dds/ColorBlock.cpp136
1 files changed, 79 insertions, 57 deletions
diff --git a/source/blender/imbuf/intern/dds/ColorBlock.cpp b/source/blender/imbuf/intern/dds/ColorBlock.cpp
index 73397cd036e..c392ef351ff 100644
--- a/source/blender/imbuf/intern/dds/ColorBlock.cpp
+++ b/source/blender/imbuf/intern/dds/ColorBlock.cpp
@@ -32,17 +32,18 @@
#include <Common.h>
#if 0
- // Get approximate luminance.
- inline static uint colorLuminance(Color32 c)
- {
- return c.r + c.g + c.b;
- }
+// Get approximate luminance.
+inline static uint colorLuminance(Color32 c)
+{
+ return c.r + c.g + c.b;
+}
- // Get the euclidean distance between the given colors.
- inline static uint colorDistance(Color32 c0, Color32 c1)
- {
- return (c0.r - c1.r) * (c0.r - c1.r) + (c0.g - c1.g) * (c0.g - c1.g) + (c0.b - c1.b) * (c0.b - c1.b);
- }
+// Get the euclidean distance between the given colors.
+inline static uint colorDistance(Color32 c0, Color32 c1)
+{
+ return (c0.r - c1.r) * (c0.r - c1.r) + (c0.g - c1.g) * (c0.g - c1.g) +
+ (c0.b - c1.b) * (c0.b - c1.b);
+}
#endif
/// Default constructor.
@@ -173,18 +174,16 @@ bool ColorBlock::isSingleColorNoAlpha() const
{
Color32 c;
int i;
- for (i = 0; i < 16; i++)
- {
- if (m_color[i].a != 0) c = m_color[i];
+ for (i = 0; i < 16; i++) {
+ if (m_color[i].a != 0)
+ c = m_color[i];
}
Color32 mask(0xFF, 0xFF, 0xFF, 0x00);
uint u = c.u & mask.u;
- for (; i < 16; i++)
- {
- if (u != (m_color[i].u & mask.u))
- {
+ for (; i < 16; i++) {
+ if (u != (m_color[i].u & mask.u)) {
return false;
}
}
@@ -200,16 +199,15 @@ uint ColorBlock::countUniqueColors() const
uint count = 0;
// @@ This does not have to be o(n^2)
- for (int i = 0; i < 16; i++)
- {
+ for (int i = 0; i < 16; i++) {
bool unique = true;
for (int j = 0; j < i; j++) {
- if ( m_color[i] != m_color[j] ) {
+ if (m_color[i] != m_color[j]) {
unique = false;
}
}
- if ( unique ) {
+ if (unique) {
count++;
}
}
@@ -255,9 +253,9 @@ void ColorBlock::diameterRange(Color32 *start, Color32 *end) const
uint best_dist = 0;
for (int i = 0; i < 16; i++) {
- for (int j = i+1; j < 16; j++) {
+ for (int j = i + 1; j < 16; j++) {
uint dist = colorDistance(m_color[i], m_color[j]);
- if ( dist > best_dist ) {
+ if (dist > best_dist) {
best_dist = dist;
c0 = m_color[i];
c1 = m_color[j];
@@ -277,8 +275,7 @@ void ColorBlock::luminanceRange(Color32 *start, Color32 *end) const
maxLuminance = minLuminance = colorLuminance(m_color[0]);
- for (uint i = 1; i < 16; i++)
- {
+ for (uint i = 1; i < 16; i++) {
uint luminance = colorLuminance(m_color[i]);
if (luminance > maxLuminance) {
@@ -301,14 +298,25 @@ void ColorBlock::boundsRange(Color32 *start, Color32 *end) const
Color32 minColor(255, 255, 255);
Color32 maxColor(0, 0, 0);
- for (uint i = 0; i < 16; i++)
- {
- if (m_color[i].r < minColor.r) { minColor.r = m_color[i].r; }
- if (m_color[i].g < minColor.g) { minColor.g = m_color[i].g; }
- if (m_color[i].b < minColor.b) { minColor.b = m_color[i].b; }
- if (m_color[i].r > maxColor.r) { maxColor.r = m_color[i].r; }
- if (m_color[i].g > maxColor.g) { maxColor.g = m_color[i].g; }
- if (m_color[i].b > maxColor.b) { maxColor.b = m_color[i].b; }
+ for (uint i = 0; i < 16; i++) {
+ if (m_color[i].r < minColor.r) {
+ minColor.r = m_color[i].r;
+ }
+ if (m_color[i].g < minColor.g) {
+ minColor.g = m_color[i].g;
+ }
+ if (m_color[i].b < minColor.b) {
+ minColor.b = m_color[i].b;
+ }
+ if (m_color[i].r > maxColor.r) {
+ maxColor.r = m_color[i].r;
+ }
+ if (m_color[i].g > maxColor.g) {
+ maxColor.g = m_color[i].g;
+ }
+ if (m_color[i].b > maxColor.b) {
+ maxColor.b = m_color[i].b;
+ }
}
// Offset range by 1/16 of the extents
@@ -335,16 +343,31 @@ void ColorBlock::boundsRangeAlpha(Color32 *start, Color32 *end) const
Color32 minColor(255, 255, 255, 255);
Color32 maxColor(0, 0, 0, 0);
- for (uint i = 0; i < 16; i++)
- {
- if (m_color[i].r < minColor.r) { minColor.r = m_color[i].r; }
- if (m_color[i].g < minColor.g) { minColor.g = m_color[i].g; }
- if (m_color[i].b < minColor.b) { minColor.b = m_color[i].b; }
- if (m_color[i].a < minColor.a) { minColor.a = m_color[i].a; }
- if (m_color[i].r > maxColor.r) { maxColor.r = m_color[i].r; }
- if (m_color[i].g > maxColor.g) { maxColor.g = m_color[i].g; }
- if (m_color[i].b > maxColor.b) { maxColor.b = m_color[i].b; }
- if (m_color[i].a > maxColor.a) { maxColor.a = m_color[i].a; }
+ for (uint i = 0; i < 16; i++) {
+ if (m_color[i].r < minColor.r) {
+ minColor.r = m_color[i].r;
+ }
+ if (m_color[i].g < minColor.g) {
+ minColor.g = m_color[i].g;
+ }
+ if (m_color[i].b < minColor.b) {
+ minColor.b = m_color[i].b;
+ }
+ if (m_color[i].a < minColor.a) {
+ minColor.a = m_color[i].a;
+ }
+ if (m_color[i].r > maxColor.r) {
+ maxColor.r = m_color[i].r;
+ }
+ if (m_color[i].g > maxColor.g) {
+ maxColor.g = m_color[i].g;
+ }
+ if (m_color[i].b > maxColor.b) {
+ maxColor.b = m_color[i].b;
+ }
+ if (m_color[i].a > maxColor.a) {
+ maxColor.a = m_color[i].a;
+ }
}
// Offset range by 1/16 of the extents
@@ -374,19 +397,19 @@ void ColorBlock::boundsRangeAlpha(Color32 *start, Color32 *end) const
void ColorBlock::sortColorsByAbsoluteValue()
{
// Dummy selection sort.
- for ( uint a = 0; a < 16; a++ ) {
+ for (uint a = 0; a < 16; a++) {
uint max = a;
Color16 cmax(m_color[a]);
- for ( uint b = a+1; b < 16; b++ ) {
+ for (uint b = a + 1; b < 16; b++) {
Color16 cb(m_color[b]);
- if ( cb.u > cmax.u ) {
+ if (cb.u > cmax.u) {
max = b;
cmax = cb;
}
}
- swap( m_color[a], m_color[max] );
+ swap(m_color[a], m_color[max]);
}
}
#endif
@@ -402,16 +425,15 @@ void ColorBlock::computeRange(Vector3::Arg axis, Color32 *start, Color32 *end) c
float min, max;
min = max = dot(Vector3(m_color[0].r, m_color[0].g, m_color[0].b), axis);
- for (uint i = 1; i < 16; i++)
- {
+ for (uint i = 1; i < 16; i++) {
const Vector3 vec(m_color[i].r, m_color[i].g, m_color[i].b);
float val = dot(vec, axis);
- if ( val < min ) {
+ if (val < min) {
mini = i;
min = val;
}
- else if ( val > max ) {
+ else if (val > max) {
maxi = i;
max = val;
}
@@ -424,7 +446,7 @@ void ColorBlock::computeRange(Vector3::Arg axis, Color32 *start, Color32 *end) c
#if 0
/// Sort colors in the given axis.
-void ColorBlock::sortColors(const Vector3 & axis)
+void ColorBlock::sortColors(const Vector3 &axis)
{
float luma_array[16];
@@ -434,15 +456,15 @@ void ColorBlock::sortColors(const Vector3 & axis)
}
// Dummy selection sort.
- for ( uint a = 0; a < 16; a++ ) {
+ for (uint a = 0; a < 16; a++) {
uint min = a;
- for ( uint b = a+1; b < 16; b++ ) {
- if ( luma_array[b] < luma_array[min] ) {
+ for (uint b = a + 1; b < 16; b++) {
+ if (luma_array[b] < luma_array[min]) {
min = b;
}
}
- swap( luma_array[a], luma_array[min] );
- swap( m_color[a], m_color[min] );
+ swap(luma_array[a], luma_array[min]);
+ swap(m_color[a], m_color[min]);
}
}
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 16:01:15 +0300