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simplify this crazy-ass code
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@pkrumins
pkrumins committed Jul 28, 2010
1 parent 4b432e0 commit 74dbf02
Showing 1 changed file with 50 additions and 40 deletions.
90 changes: 50 additions & 40 deletions src/dynamic_gif_stack.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -93,23 +93,25 @@ DynamicGifStack::GifEncode()
GifUpdate *gif = *it;
int start = (gif->y - top.y)*width*3 + (gif->x - top.x)*3;
for (int i = 0; i < gif->h; i++) {
for (int j = 0; j < 3*gif->w; j+=3) {
unsigned char *datap = &data[start + i*width*3];
unsigned char *gifdatap = &gif->data[i*gif->w*3];
for (int j = 0; j < gif->w; j++) {
if (!user_set_transparency) {
if (gif->data[i*gif->w*3 + j] == transparency_color.r &&
gif->data[i*gif->w*3 + j + 1] == transparency_color.g &&
gif->data[i*gif->w*3 + j + 2] == transparency_color.b)
if (gifdatap[0] == transparency_color.r &&
gifdatap[1] == transparency_color.g &&
gifdatap[2] == transparency_color.b)
{
if (gif->data[i*gif->w*3 + j + 2] < 0xFF) {
gif->data[i*gif->w*3 + j + 2]++;
if (gifdatap[2] < 0xFF) {
gifdatap[2]++;
}
else {
gif->data[i*gif->w*3 + j + 2]--;
gifdatap[2]--;
}
}
}
data[start + i*width*3 + j] = gif->data[i*gif->w*3 + j];
data[start + i*width*3 + j + 1] = gif->data[i*gif->w*3 + j + 1];
data[start + i*width*3 + j + 2] = gif->data[i*gif->w*3 + j + 2];
*datap++ = *gifdatap++;
*datap++ = *gifdatap++;
*datap++ = *gifdatap++;
}
}
}
Expand All @@ -119,23 +121,25 @@ DynamicGifStack::GifEncode()
GifUpdate *gif = *it;
int start = (gif->y - top.y)*width*3 + (gif->x - top.x)*3;
for (int i = 0; i < gif->h; i++) {
for (int j = 0; j < 3*gif->w; j+=3) {
unsigned char *datap = &data[start + i*width*3];
unsigned char *gifdatap = &gif->data[i*gif->w*3];
for (int j = 0; j < gif->w; j++) {
if (!user_set_transparency) {
if (gif->data[i*gif->w*3 + j + 2] == transparency_color.r &&
gif->data[i*gif->w*3 + j + 1] == transparency_color.g &&
gif->data[i*gif->w*3 + j] == transparency_color.b)
if (gifdatap[2] == transparency_color.r &&
gifdatap[1] == transparency_color.g &&
gifdatap[0] == transparency_color.b)
{
if (gif->data[i*gif->w*3 + j] < 0xFF) {
gif->data[i*gif->w*3 + j]++;
if (gifdatap[0] < 0xFF) {
gifdatap[0]++;
}
else {
gif->data[i*gif->w*3 + j]--;
gifdatap[0]--;
}
}
}
data[start + i*width*3 + j] = gif->data[i*gif->w*3 + j + 2];
data[start + i*width*3 + j + 1] = gif->data[i*gif->w*3 + j + 1];
data[start + i*width*3 + j + 2] = gif->data[i*gif->w*3 + j];
*datap++ = *(gifdatap++ + 2);
*datap++ = *(gifdatap++ + 1);
*datap++ = *gifdatap++;
}
}
}
Expand All @@ -145,23 +149,26 @@ DynamicGifStack::GifEncode()
GifUpdate *gif = *it;
int start = (gif->y - top.y)*width*3 + (gif->x - top.x)*3;
for (int i = 0; i < gif->h; i++) {
for (int j = 0, k = 0; j < 3*gif->w; j+=3, k+=4) {
unsigned char *datap = &data[start + i*width*3];
unsigned char *gifdatap = &gif->data[i*gif->w*4];
for (int j = 0; j < gif->w; j++) {
if (!user_set_transparency) {
if (gif->data[i*gif->w*4 + k] == transparency_color.r &&
gif->data[i*gif->w*4 + k + 1] == transparency_color.g &&
gif->data[i*gif->w*4 + k + 2] == transparency_color.b)
if (gifdatap[0] == transparency_color.r &&
gifdatap[1] == transparency_color.g &&
gifdatap[2] == transparency_color.b)
{
if (gif->data[i*gif->w*4 + k + 2] < 0xFF) {
gif->data[i*gif->w*4 + k + 2]++;
if (gifdatap[2] < 0xFF) {
gifdatap[2]++;
}
else {
gif->data[i*gif->w*3 + k + 2]--;
gifdatap[2]--;
}
}
}
data[start + i*width*3 + j] = gif->data[i*gif->w*4 + k];
data[start + i*width*3 + j + 1] = gif->data[i*gif->w*4 + k + 1];
data[start + i*width*3 + j + 2] = gif->data[i*gif->w*4 + k + 2];
*datap++ = *gifdatap++;
*datap++ = *gifdatap++;
*datap++ = *gifdatap++;
gifdatap++;
}
}
}
Expand All @@ -171,23 +178,26 @@ DynamicGifStack::GifEncode()
GifUpdate *gif = *it;
int start = (gif->y - top.y)*width*3 + (gif->x - top.x)*3;
for (int i = 0; i < gif->h; i++) {
for (int j = 0, k = 0; j < 3*gif->w; j+=3, k+=4) {
unsigned char *datap = &data[start + i*width*3];
unsigned char *gifdatap = &gif->data[i*gif->w*4];
for (int j = 0; j < gif->w; j++) {
if (!user_set_transparency) {
if (gif->data[i*gif->w*4 + k + 2] == transparency_color.r &&
gif->data[i*gif->w*4 + k + 1] == transparency_color.g &&
gif->data[i*gif->w*4 + k] == transparency_color.b)
if (gifdatap[2] == transparency_color.r &&
gifdatap[1] == transparency_color.g &&
gifdatap[0] == transparency_color.b)
{
if (gif->data[i*gif->w*4 + k] < 0xFF) {
gif->data[i*gif->w*4 + k]++;
if (gifdatap[0] < 0xFF) {
gifdatap[0]++;
}
else {
gif->data[i*gif->w*3 + k]--;
gifdatap[0]--;
}
}
}
data[start + i*width*3 + j] = gif->data[i*gif->w*4 + k + 2];
data[start + i*width*3 + j + 1] = gif->data[i*gif->w*4 + k + 1];
data[start + i*width*3 + j + 2] = gif->data[i*gif->w*4 + k];
*datap++ = *gifdatap++;
*datap++ = *gifdatap++;
*datap++ = *gifdatap++;
gifdatap++;
}
}
}
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