|
public evaluatePalette ( |
||
| color_array | ||
| d3d9 | bool | |
| return | uint | |
/*void OptimalCompress::initLumaTables() {
// For all possible color pairs:
for (int c0 = 0; c0 < 65536; c0++) {
for (int c1 = 0; c1 < 65536; c1++) {
// Compute
}
}
for (int r = 0; r < 1<<5; r++) {
for (int g = 0; g < 1<<6; g++) {
for (int b = 0; b < 1<<5; b++) {
}
}
}
}*/
// Brute force Luma compressor
void compressDXT1_Luma(ColorBlock rgba, BlockDXT1 block)
{
// F_YR = 19595/65536.0f, F_YG = 38470/65536.0f, F_YB = 7471/65536.0f;
// 195841
//if (
/*
byte ming = 63;
byte maxg = 0;
bool isSingleColor = true;
byte singleColor = rgba.color(0).g;
// Get min/max green.
for (uint i = 0; i < 16; i++)
{
byte green = (rgba.color[i].g + 1) >> 2;
ming = min(ming, green);
maxg = max(maxg, green);
if (rgba.color[i].g != singleColor) isSingleColor = false;
}
if (isSingleColor)
{
compressDXT1G(singleColor, block);
return;
}
block.col0.r = 31;
block.col1.r = 31;
block.col0.g = maxg;
block.col1.g = ming;
block.col0.b = 0;
block.col1.b = 0;
int bestError = computeGreenError(rgba, block);
int bestg0 = maxg;
int bestg1 = ming;
// Expand search space a bit.
int greenExpand = 4;
ming = (ming <= greenExpand) ? 0 : ming - greenExpand;
maxg = (maxg >= 63-greenExpand) ? 63 : maxg + greenExpand;
for (int g0 = ming+1; g0 <= maxg; g0++)
{
for (int g1 = ming; g1 < g0; g1++)
{
block.col0.g = g0;
block.col1.g = g1;
int error = computeGreenError(rgba, block, bestError);
if (error < bestError)
{
bestError = error;
bestg0 = g0;
bestg1 = g1;
}
}
}
block.col0.g = bestg0;
block.col1.g = bestg1;
nvDebugCheck(bestg0 == bestg1 || block.isFourColorMode());
*/
Color32[] palette = new Color32[4];
block.evaluatePalette(palette, false); // @@ Use target decoder.
block.indices = computeGreenIndices(rgba, palette);
}
/*void OptimalCompress::initLumaTables() {
*
* // For all possible color pairs:
* for (int c0 = 0; c0 < 65536; c0++) {
* for (int c1 = 0; c1 < 65536; c1++) {
*
* // Compute
*
* }
* }
*
*
* for (int r = 0; r < 1<<5; r++) {
* for (int g = 0; g < 1<<6; g++) {
* for (int b = 0; b < 1<<5; b++) {
*
*
* }
* }
* }
* }*/
// Brute force Luma compressor
void compressDXT1_Luma(ColorBlock rgba, BlockDXT1 block)
{
// F_YR = 19595/65536.0f, F_YG = 38470/65536.0f, F_YB = 7471/65536.0f;
// 195841
//if (
/*
* byte ming = 63;
* byte maxg = 0;
*
* bool isSingleColor = true;
* byte singleColor = rgba.color(0).g;
*
* // Get min/max green.
* for (uint i = 0; i < 16; i++)
* {
* byte green = (rgba.color[i].g + 1) >> 2;
* ming = min(ming, green);
* maxg = max(maxg, green);
*
* if (rgba.color[i].g != singleColor) isSingleColor = false;
* }
*
* if (isSingleColor)
* {
* compressDXT1G(singleColor, block);
* return;
* }
*
* block.col0.r = 31;
* block.col1.r = 31;
* block.col0.g = maxg;
* block.col1.g = ming;
* block.col0.b = 0;
* block.col1.b = 0;
*
* int bestError = computeGreenError(rgba, block);
* int bestg0 = maxg;
* int bestg1 = ming;
*
* // Expand search space a bit.
* int greenExpand = 4;
* ming = (ming <= greenExpand) ? 0 : ming - greenExpand;
* maxg = (maxg >= 63-greenExpand) ? 63 : maxg + greenExpand;
*
* for (int g0 = ming+1; g0 <= maxg; g0++)
* {
* for (int g1 = ming; g1 < g0; g1++)
* {
* block.col0.g = g0;
* block.col1.g = g1;
* int error = computeGreenError(rgba, block, bestError);
*
* if (error < bestError)
* {
* bestError = error;
* bestg0 = g0;
* bestg1 = g1;
* }
* }
* }
*
* block.col0.g = bestg0;
* block.col1.g = bestg1;
*
* nvDebugCheck(bestg0 == bestg1 || block.isFourColorMode());
*/
Color32[] palette = new Color32[4];
block.evaluatePalette(palette, false); // @@ Use target decoder.
block.indices = computeGreenIndices(rgba, palette);
}
// Brute force green channel compressor
void compressDXT1G(ColorBlock rgba, BlockDXT1 block)
{
byte ming = 63;
byte maxg = 0;
bool isSingleColor = true;
byte singleColor = rgba.color[0].g;
// Get min/max green.
for (uint i = 0; i < 16; i++)
{
byte green = (byte)((rgba.color[i].g + 1) >> 2);
ming = Math.Min(ming, green);
maxg = Math.Max(maxg, green);
if (rgba.color[i].g != singleColor) isSingleColor = false;
}
if (isSingleColor)
{
compressDXT1G(singleColor, block);
return;
}
block.col0.r = 31;
block.col1.r = 31;
block.col0.g = maxg;
block.col1.g = ming;
block.col0.b = 0;
block.col1.b = 0;
uint bestError = computeGreenError(rgba, block);
byte bestg0 = maxg;
byte bestg1 = ming;
// Expand search space a bit.
int greenExpand = 4;
ming = (byte)((ming <= greenExpand) ? 0 : ming - greenExpand);
maxg = (byte)((maxg >= 63 - greenExpand) ? 63 : maxg + greenExpand);
for (byte g0 = (byte)(ming + 1); g0 <= maxg; g0++)
{
for (byte g1 = ming; g1 < g0; g1++)
{
block.col0.g = g0;
block.col1.g = g1;
uint error = computeGreenError(rgba, block, bestError);
if (error < bestError)
{
bestError = error;
bestg0 = g0;
bestg1 = g1;
}
}
}
block.col0.g = bestg0;
block.col1.g = bestg1;
Color32[] palette = new Color32[4];
block.evaluatePalette(palette, false); // @@ Use target decoder.
block.indices = computeGreenIndices(rgba, palette);
}
// Brute force green channel compressor
void compressDXT1G(ColorBlock rgba, BlockDXT1 block)
{
byte ming = 63;
byte maxg = 0;
bool isSingleColor = true;
byte singleColor = rgba.color[0].g;
// Get min/max green.
for (uint i = 0; i < 16; i++)
{
byte green = (byte)((rgba.color[i].g + 1) >> 2);
ming = Math.Min(ming, green);
maxg = Math.Max(maxg, green);
if (rgba.color[i].g != singleColor)
{
isSingleColor = false;
}
}
if (isSingleColor)
{
compressDXT1G(singleColor, block);
return;
}
block.col0.r = 31;
block.col1.r = 31;
block.col0.g = maxg;
block.col1.g = ming;
block.col0.b = 0;
block.col1.b = 0;
uint bestError = computeGreenError(rgba, block);
byte bestg0 = maxg;
byte bestg1 = ming;
// Expand search space a bit.
int greenExpand = 4;
ming = (byte)((ming <= greenExpand) ? 0 : ming - greenExpand);
maxg = (byte)((maxg >= 63 - greenExpand) ? 63 : maxg + greenExpand);
for (byte g0 = (byte)(ming + 1); g0 <= maxg; g0++)
{
for (byte g1 = ming; g1 < g0; g1++)
{
block.col0.g = g0;
block.col1.g = g1;
uint error = computeGreenError(rgba, block, bestError);
if (error < bestError)
{
bestError = error;
bestg0 = g0;
bestg1 = g1;
}
}
}
block.col0.g = bestg0;
block.col1.g = bestg1;
Color32[] palette = new Color32[4];
block.evaluatePalette(palette, false); // @@ Use target decoder.
block.indices = computeGreenIndices(rgba, palette);
}
