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gsdx debug: allow to dump alpha channel as a gray texture 

I would love to find an image viewer that allow to mask channel of the image
This commit is contained in:
Gregory Hainaut 2015-05-01 13:38:58 +02:00
parent c8a3db114c
commit 004fa7aea4
3 changed files with 43 additions and 19 deletions
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28
plugins/GSdx/GSTextureOGL.cpp
View File

@ -520,25 +520,37 @@ void GSTextureOGL::SavePNG(const string& fn, const void* image, uint32 pitch) {
} else {
png::image<png::rgba_pixel> img(m_size.x, m_size.y);
png::image<png::rgb_pixel> img_opaque(m_size.x, m_size.y);
png::image<png::gray_pixel> img_alpha(m_size.x, m_size.y);
uint8* data = (uint8*)image;
for(int h = 0; h < m_size.y; h++, data += pitch) {
for (int w = 0; w < m_size.x; w++) {
png::rgba_pixel pa(data[4*w+0], data[4*w+1], data[4*w+2], data[4*w+3]);
img.set_pixel(w, h, pa);
#if !defined(ENABLE_OGL_PNG_OPAQUE) && !defined(ENABLE_OGL_PNG_ALPHA)
png::rgba_pixel p(data[4*w+0], data[4*w+1], data[4*w+2], data[4*w+3]);
img.set_pixel(w, h, p);
#endif
#ifdef ENABLE_OGL_PNG_OPAQUE
png::rgb_pixel p(data[4*w+0], data[4*w+1], data[4*w+2]);
img_opaque.set_pixel(w, h, p);
png::rgb_pixel po(data[4*w+0], data[4*w+1], data[4*w+2]);
img_opaque.set_pixel(w, h, po);
#endif
#ifdef ENABLE_OGL_PNG_ALPHA
png::gray_pixel pa(data[4*w+3]);
img_alpha.set_pixel(w, h, pa);
#endif
}
}
std::string rename = fn;
img.write(rename.replace(fn.length()-4, 4, "_full.png"));
std::string root = fn;
root.replace(fn.length()-4, 4, "");
#if !defined(ENABLE_OGL_PNG_OPAQUE) && !defined(ENABLE_OGL_PNG_ALPHA)
img.write(root + "_full.png");
#endif
#ifdef ENABLE_OGL_PNG_OPAQUE
rename = fn;
img_opaque.write(rename.replace(fn.length()-4, 4, "_opaque.png"));
img_opaque.write(root + "_opaque.png");
#endif
#ifdef ENABLE_OGL_PNG_ALPHA
img_alpha.write(root + "_alpha.png");
#endif
}
}

28
plugins/GSdx/GSTextureSW.cpp
View File

@ -124,25 +124,37 @@ struct BITMAPINFOHEADER
void GSTextureSW::SavePNG(const string& fn) {
png::image<png::rgba_pixel> img(m_size.x, m_size.y);
png::image<png::rgb_pixel> img_opaque(m_size.x, m_size.y);
png::image<png::gray_pixel> img_alpha(m_size.x, m_size.y);
uint8* data = (uint8*)m_data;
for(int h = 0; h < m_size.y; h++, data += m_pitch) {
for (int w = 0; w < m_size.x; w++) {
png::rgba_pixel pa(data[4*w+0], data[4*w+1], data[4*w+2], data[4*w+3]);
img.set_pixel(w, h, pa);
#if !defined(ENABLE_OGL_PNG_OPAQUE) && !defined(ENABLE_OGL_PNG_ALPHA)
png::rgba_pixel p(data[4*w+0], data[4*w+1], data[4*w+2], data[4*w+3]);
img.set_pixel(w, h, p);
#endif
#ifdef ENABLE_OGL_PNG_OPAQUE
png::rgb_pixel p(data[4*w+0], data[4*w+1], data[4*w+2]);
img_opaque.set_pixel(w, h, p);
png::rgb_pixel po(data[4*w+0], data[4*w+1], data[4*w+2]);
img_opaque.set_pixel(w, h, po);
#endif
#ifdef ENABLE_OGL_PNG_ALPHA
png::gray_pixel pa(data[4*w+3]);
img_alpha.set_pixel(w, h, pa);
#endif
}
}
std::string rename = fn;
img.write(rename.replace(fn.length()-4, 4, "_full.png"));
std::string root = fn;
root.replace(fn.length()-4, 4, "");
#if !defined(ENABLE_OGL_PNG_OPAQUE) && !defined(ENABLE_OGL_PNG_ALPHA)
img.write(root + "_full.png");
#endif
#ifdef ENABLE_OGL_PNG_OPAQUE
rename = fn;
img_opaque.write(rename.replace(fn.length()-4, 4, "_opaque.png"));
img_opaque.write(root + "_opaque.png");
#endif
#ifdef ENABLE_OGL_PNG_ALPHA
img_alpha.write(root + "_alpha.png");
#endif
}
#endif

6
plugins/GSdx/config.h
View File

@ -39,11 +39,11 @@
//#define DISABLE_DATE
// Allow to dump texture as PNG (require libpng++). It reduces the size of the dump
// and alpha is well supported
// and alpha is well supported (on linux)
//#define ENABLE_OGL_PNG
// Extension of the previous define to also dump texture without alpha (hard to see anything
// when the texture is fully transparent)
// The next two define allows to dump texture without alpha or only the alpha channel.
//#define ENABLE_OGL_PNG_OPAQUE
//#define ENABLE_OGL_PNG_ALPHA
#if defined(_DEBUG) || defined(_DEVEL)
#define ENABLE_OGL_DEBUG // Create a debug context and check opengl command status. Allow also to dump various textures/states.