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Support for compressed textures

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This commit is contained in:
Eduardo Bart
2012-08-21 08:09:48 -03:00
parent 01a8e57a3c
commit ea4dd2f8e6
4 changed files with 17 additions and 9 deletions
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14
src/framework/graphics/texture.cpp
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@@ -46,7 +46,7 @@ Texture::Texture(const Size& size)
setupFilters();
}
Texture::Texture(const ImagePtr& image, bool buildMipmaps)
Texture::Texture(const ImagePtr& image, bool buildMipmaps, bool compress)
{
m_id = 0;
@@ -67,11 +67,11 @@ Texture::Texture(const ImagePtr& image, bool buildMipmaps)
if(buildMipmaps) {
int level = 0;
do {
setupPixels(level++, glImage->getSize(), glImage->getPixelData(), glImage->getBpp());
setupPixels(level++, glImage->getSize(), glImage->getPixelData(), glImage->getBpp(), compress);
} while(glImage->nextMipmap());
m_hasMipmaps = true;
} else
setupPixels(0, glImage->getSize(), glImage->getPixelData(), glImage->getBpp());
setupPixels(0, glImage->getSize(), glImage->getPixelData(), glImage->getBpp(), compress);
setupWrap();
setupFilters();
@@ -216,7 +216,7 @@ void Texture::setupTranformMatrix()
}
}
void Texture::setupPixels(int level, const Size& size, uchar* pixels, int channels)
void Texture::setupPixels(int level, const Size& size, uchar* pixels, int channels, bool compress)
{
GLenum format = 0;
switch(channels) {
@@ -234,5 +234,9 @@ void Texture::setupPixels(int level, const Size& size, uchar* pixels, int channe
break;
}
glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, size.width(), size.height(), 0, format, GL_UNSIGNED_BYTE, pixels);
GLenum internalFormat = GL_RGBA;
if(compress)
internalFormat = GL_COMPRESSED_RGBA;
glTexImage2D(GL_TEXTURE_2D, level, internalFormat, size.width(), size.height(), 0, format, GL_UNSIGNED_BYTE, pixels);
}

4
src/framework/graphics/texture.h
View File

@@ -30,7 +30,7 @@ class Texture : public stdext::shared_object
public:
Texture();
Texture(const Size& size);
Texture(const ImagePtr& image, bool buildMipmaps = false);
Texture(const ImagePtr& image, bool buildMipmaps = false, bool compress = false);
virtual ~Texture();
void bind();
@@ -57,7 +57,7 @@ protected:
void setupWrap();
void setupFilters();
void setupTranformMatrix();
void setupPixels(int level, const Size& size, uchar *pixels, int channels = 4);
void setupPixels(int level, const Size& size, uchar *pixels, int channels = 4, bool compress = false);
uint m_id;
Size m_size;