1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/texture.cc	Fri Apr 25 05:20:53 2014 +0300
     1.3 @@ -0,0 +1,77 @@
     1.4 +#include "texture.h"
     1.5 +#include "opengl.h"
     1.6 +
     1.7 +Texture::Texture()
     1.8 +{
     1.9 +	tex = 0;
    1.10 +	type = GL_TEXTURE_2D;
    1.11 +}
    1.12 +
    1.13 +Texture::~Texture()
    1.14 +{
    1.15 +	destroy();
    1.16 +}
    1.17 +
    1.18 +void Texture::create2d(int xsz, int ysz)
    1.19 +{
    1.20 +	destroy();
    1.21 +
    1.22 +	type = GL_TEXTURE_2D;
    1.23 +	img.create(xsz, ysz);
    1.24 +
    1.25 +	if(!tex) {
    1.26 +		glGenTextures(1, &tex);
    1.27 +	}
    1.28 +	glBindTexture(type, tex);
    1.29 +	glTexParameteri(type, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    1.30 +	glTexParameteri(type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    1.31 +	glTexImage2D(type, 0, GL_RGBA, xsz, ysz, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
    1.32 +}
    1.33 +
    1.34 +void Texture::destroy()
    1.35 +{
    1.36 +	if(tex) {
    1.37 +		glDeleteTextures(1, &tex);
    1.38 +	}
    1.39 +}
    1.40 +
    1.41 +void Texture::set_image(const Image &img)
    1.42 +{
    1.43 +	this->img = img;
    1.44 +	create2d(img.get_width(), img.get_height());
    1.45 +
    1.46 +	glTexSubImage2D(type, 0, 0, 0, img.get_width(), img.get_height(),
    1.47 +			GL_RGBA, GL_UNSIGNED_BYTE, img.get_pixels());
    1.48 +}
    1.49 +
    1.50 +Image &Texture::get_image()
    1.51 +{
    1.52 +	return img;
    1.53 +}
    1.54 +
    1.55 +const Image &Texture::get_image() const
    1.56 +{
    1.57 +	return img;
    1.58 +}
    1.59 +
    1.60 +unsigned int Texture::get_texture_id() const
    1.61 +{
    1.62 +	return tex;
    1.63 +}
    1.64 +
    1.65 +void Texture::bind(int tunit) const
    1.66 +{
    1.67 +	glActiveTextureARB(GL_TEXTURE0_ARB + tunit);
    1.68 +	glBindTexture(type, tex);
    1.69 +	glActiveTextureARB(GL_TEXTURE0_ARB);
    1.70 +}
    1.71 +
    1.72 +bool Texture::load(const char *fname)
    1.73 +{
    1.74 +	Image image;
    1.75 +	if(!image.load(fname)) {
    1.76 +		return false;
    1.77 +	}
    1.78 +	set_image(image);
    1.79 +	return true;
    1.80 +}
    1.81 \ No newline at end of file