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Fix #36611: cycles issue loading png file with 2 channels.

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This commit is contained in:
Brecht Van Lommel
2013-08-30 17:01:44 +00:00
parent e8605f9df9
commit 0933c6093e
1 changed files with 20 additions and 4 deletions
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24
intern/cycles/render/image.cpp
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@@ -307,7 +307,7 @@ bool ImageManager::file_load_image(Image *img, device_vector<uchar4>& tex_img)
}
/* we only handle certain number of components */
if(!(components == 1 || components == 3 || components == 4)) {
if(!(components >= 1 && components <= 4)) {
if(in) {
in->close();
delete in;
@@ -334,7 +334,15 @@ bool ImageManager::file_load_image(Image *img, device_vector<uchar4>& tex_img)
builtin_image_pixels_cb(img->filename, img->builtin_data, pixels);
}
if(components == 3) {
if(components == 2) {
for(int i = width*height-1; i >= 0; i--) {
pixels[i*4+3] = pixels[i*2+1];
pixels[i*4+2] = pixels[i*2+0];
pixels[i*4+1] = pixels[i*2+0];
pixels[i*4+0] = pixels[i*2+0];
}
}
else if(components == 3) {
for(int i = width*height-1; i >= 0; i--) {
pixels[i*4+3] = 255;
pixels[i*4+2] = pixels[i*3+2];
@@ -390,7 +398,7 @@ bool ImageManager::file_load_float_image(Image *img, device_vector<float4>& tex_
builtin_image_info_cb(img->filename, img->builtin_data, is_float, width, height, components);
}
if(!(components == 1 || components == 3 || components == 4)) {
if(!(components >= 1 && components <= 4)) {
if(in) {
in->close();
delete in;
@@ -416,7 +424,15 @@ bool ImageManager::file_load_float_image(Image *img, device_vector<float4>& tex_
builtin_image_float_pixels_cb(img->filename, img->builtin_data, pixels);
}
if(components == 3) {
if(components == 2) {
for(int i = width*height-1; i >= 0; i--) {
pixels[i*4+3] = pixels[i*2+1];
pixels[i*4+2] = pixels[i*2+0];
pixels[i*4+1] = pixels[i*2+0];
pixels[i*4+0] = pixels[i*2+0];
}
}
else if(components == 3) {
for(int i = width*height-1; i >= 0; i--) {
pixels[i*4+3] = 1.0f;
pixels[i*4+2] = pixels[i*3+2];