#include "../data/font.h" 
int PIXELMETHODS_CLASS::drawtext(int x, int y, const char *s, int r, int g, int b, int a)
{
	if(!strlen(s))
		return 0;
	int oR = r, oG = g, oB = b;
	int width, height;
	Graphics::textsize(s, width, height);
	VideoBuffer texture(width, height);
	int characterX = 0, characterY = 0;
	int startX = characterX;
	for (; *s; s++)
	{
		if (*s == '\n')
		{
			characterX = startX;
			characterY += FONT_H+2;
		}
		else if (*s == '\x0F')
		{
			if(!s[1] || !s[2] || !s[3]) break;
			oR = r;
			oG = g;
			oB = b;
			r = s[1];
			g = s[2];
			b = s[3];
			s += 3;
		}
		else if (*s == '\x0E')
		{
			r = oR;
			g = oG;
			b = oB;
		}
		else if (*s == '\b')
		{
			if(!s[1]) break;
			switch (s[1])
			{
			case 'w':
				r = g = b = 255; 
				break;
			case 'g':
				r = g = b = 192;
				break;
			case 'o':
				r = 255;
				g = 216;
				b = 32;
				break;
			case 'r':
				r = 255;
				g = b = 0;
				break;
			case 'l':
				r = 255;
				g = b = 75;
				break;
			case 'b':
				r = g = 0;
				b = 255;
				break;
			case 't':
				b = 255;
				g = 170;
				r = 32;
				break;
			}
			s++;
		}
		else
		{
			characterX = texture.SetCharacter(characterX, characterY, *(unsigned char *)s, r, g, b, a);
		}
	}
	glEnable(GL_TEXTURE_2D);

	//Generate texture
	glBindTexture(GL_TEXTURE_2D, textTexture);

	//Draw texture
    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture.Width, texture.Height, 0, GL_BGRA, GL_UNSIGNED_BYTE, texture.Buffer);

    //glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture.Width, texture.Height, GL_BGRA, GL_UNSIGNED_BYTE, texture.Buffer);
	glBegin(GL_QUADS);
    glTexCoord2d(0, 0);
    glVertex2f(x, y);
    glTexCoord2d(1, 0);
    glVertex2f(x+texture.Width, y);
    glTexCoord2d(1, 1);
    glVertex2f(x+texture.Width, y+texture.Height);
    glTexCoord2d(0, 1);
    glVertex2f(x, y+texture.Height);
    glEnd();

	glBindTexture(GL_TEXTURE_2D, 0);
	glDisable(GL_TEXTURE_2D);

	return x;
}

int PIXELMETHODS_CLASS::drawtext(int x, int y, std::string s, int r, int g, int b, int a)
{
	return drawtext(x, y, s.c_str(), r, g, b, a);
}

TPT_INLINE int PIXELMETHODS_CLASS::drawchar(int x, int y, int c, int r, int g, int b, int a)
{
	int i, j, w, bn = 0, ba = 0;
	char *rp = font_data + font_ptrs[c];
	w = *(rp++);
	VideoBuffer texture(w, 12);
	texture.SetCharacter(0, 0, c, r, g, b, a);

	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, textTexture);

    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture.Width, texture.Height, 0, GL_BGRA, GL_UNSIGNED_BYTE, texture.Buffer);
	glBegin(GL_QUADS);
    glTexCoord2d(0, 0);
    glVertex2f(x, y);
    glTexCoord2d(1, 0);
    glVertex2f(x+texture.Width, y);
    glTexCoord2d(1, 1);
    glVertex2f(x+texture.Width, y+texture.Height);
    glTexCoord2d(0, 1);
    glVertex2f(x, y+texture.Height);
    glEnd();

	glBindTexture(GL_TEXTURE_2D, 0);
	glDisable(GL_TEXTURE_2D);

	return x + w;
}

TPT_INLINE int PIXELMETHODS_CLASS::addchar(int x, int y, int c, int r, int g, int b, int a)
{
	int i, j, w, bn = 0, ba = 0;
	char *rp = font_data + font_ptrs[c];
	w = *(rp++);
	VideoBuffer texture(w, 12);
	texture.AddCharacter(0, 0, c, r, g, b, a);

	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, textTexture);
	glBlendFunc(GL_ONE, GL_ONE);

    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture.Width, texture.Height, 0, GL_BGRA, GL_UNSIGNED_BYTE, texture.Buffer);
	glBegin(GL_QUADS);
    glTexCoord2d(0, 0);
    glVertex2f(x, y);
    glTexCoord2d(1, 0);
    glVertex2f(x+texture.Width, y);
    glTexCoord2d(1, 1);
    glVertex2f(x+texture.Width, y+texture.Height);
    glTexCoord2d(0, 1);
    glVertex2f(x, y+texture.Height);
    glEnd();

    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glBindTexture(GL_TEXTURE_2D, 0);
	glDisable(GL_TEXTURE_2D);

	return x + w;
}

TPT_INLINE void PIXELMETHODS_CLASS::xor_pixel(int x, int y)
{
	//OpenGL doesn't support single pixel manipulation, there are ways around it, but with poor performance
}

TPT_INLINE void PIXELMETHODS_CLASS::blendpixel(int x, int y, int r, int g, int b, int a)
{
	//OpenGL doesn't support single pixel manipulation, there are ways around it, but with poor performance
}

TPT_INLINE void PIXELMETHODS_CLASS::addpixel(int x, int y, int r, int g, int b, int a)
{
	//OpenGL doesn't support single pixel manipulation, there are ways around it, but with poor performance
}

void PIXELMETHODS_CLASS::xor_line(int x, int y, int x2, int y2)
{
	glEnable(GL_COLOR_LOGIC_OP);
	//glEnable(GL_LINE_SMOOTH);
	glLogicOp(GL_XOR);
	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	glBegin(GL_LINES);
	glVertex2i(x, y);
	glVertex2i(x2, y2);
	glEnd();
	glDisable(GL_COLOR_LOGIC_OP);
}

void PIXELMETHODS_CLASS::xor_rect(int x, int y, int width, int height)
{
	glEnable(GL_COLOR_LOGIC_OP);
	//glEnable(GL_LINE_SMOOTH);
	glLogicOp(GL_XOR);
	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	glBegin(GL_LINE_STRIP);
	glVertex2i(x, y);
	glVertex2i(x+width, y);
	glVertex2i(x+width, y+height);
	glVertex2i(x, y+height);
	glVertex2i(x, y);
	glEnd();
	glDisable(GL_COLOR_LOGIC_OP);
}

void PIXELMETHODS_CLASS::xor_bitmap(unsigned char * bitmap, int x, int y, int w, int h)
{
	/* Rewriting until better method can be found
	//glEnable(GL_COLOR_LOGIC_OP);
	//glLogicOp(GL_XOR);
	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, textTexture);

    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);

    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_ALPHA, GL_UNSIGNED_BYTE, bitmap);

	glBegin(GL_QUADS);
    glTexCoord2d(0, 0);
    glVertex2f(x, y);
    glTexCoord2d(1, 0);
    glVertex2f(x+w, y);
    glTexCoord2d(1, 1);
    glVertex2f(x+w, y+h);
    glTexCoord2d(0, 1);
    glVertex2f(x, y+h);
    glEnd();

	glBindTexture(GL_TEXTURE_2D, 0);
	glDisable(GL_TEXTURE_2D);
	//glDisable(GL_COLOR_LOGIC_OP);
	glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
	*/
	float old_size;
	glGetFloatv(GL_POINT_SIZE,&old_size);	

	glPointSize(1.0);
	glBegin(GL_POINTS);
	glColor4f(1.0f,1.0f,1.0f,1.0f);
	for(int i =0; i < w*h; i++)
	{
		if(bitmap[i]==255)
		{
			glVertex2f(x+i%w,y+i/w);
		}
	}
	glEnd();
	glPointSize(old_size);
}

void PIXELMETHODS_CLASS::draw_line(int x, int y, int x2, int y2, int r, int g, int b, int a)
{
	a = 255;
	glColor4ub(r, g, b, a);
	glBegin(GL_LINES);
	glVertex2i(x, y);
	glVertex2i(x2, y2);
	glEnd();
}

void PIXELMETHODS_CLASS::drawrect(int x, int y, int width, int height, int r, int g, int b, int a)
{
	float fx = float(x)+0.5f;
	float fy = float(y)+0.5f;
	float fwidth = width-1.0f;
	float fheight = height-1.0f;
	//x++;
	//y++;
	//height-=2;
	//width-=2;
	glColor4ub(r, g, b, a);
	glBegin(GL_LINE_STRIP);
	glVertex2f(fx, fy);
	glVertex2f(fx+fwidth, fy);
	glVertex2f(fx+fwidth, fy+fheight);
	glVertex2f(fx, fy+fheight); //+1 is a hack to prevent squares from missing their corners, will make smoothed lines look like SHIT
	glVertex2f(fx, fy);
	glEnd();
}

void PIXELMETHODS_CLASS::fillrect(int x, int y, int width, int height, int r, int g, int b, int a)
{
	/*x++;
	y++;
	width-=1;
	height-=1;*/

	glColor4ub(r, g, b, a);
	glBegin(GL_QUADS);
	glVertex2i(x, y);
	glVertex2i(x+width, y);
	glVertex2i(x+width, y+height);
	glVertex2i(x, y+height);
	glEnd();
}

void PIXELMETHODS_CLASS::gradientrect(int x, int y, int width, int height, int r, int g, int b, int a, int r2, int g2, int b2, int a2)
{
	glBegin(GL_QUADS);
	glColor4ub(r, g, b, a);
	glVertex2i(x, y);
	glColor4ub(r2, g2, b2, a2);
	glVertex2i(x+width, y);
	glColor4ub(r2, g2, b2, a2);
	glVertex2i(x+width, y+height);
	glColor4ub(r, g, b, a);
	glVertex2i(x, y+height);
	glEnd();
}

void PIXELMETHODS_CLASS::clearrect(int x, int y, int width, int height)
{
	glColor4ub(0, 0, 0, 255);
	glBegin(GL_QUADS);
	glVertex2i(x, y);
	glVertex2i(x+width, y);
	glVertex2i(x+width, y+height);
	glVertex2i(x, y+height);
	glEnd();
}

void PIXELMETHODS_CLASS::draw_image(pixel *img, int x, int y, int w, int h, int a)
{
	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, textTexture);

    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_BGRA, GL_UNSIGNED_BYTE, img);
	glBegin(GL_QUADS);
    glTexCoord2d(0, 0);
    glVertex2f(x, y);
    glTexCoord2d(1, 0);
    glVertex2f(x+w, y);
    glTexCoord2d(1, 1);
    glVertex2f(x+w, y+h);
    glTexCoord2d(0, 1);
    glVertex2f(x, y+h);
    glEnd();

	glBindTexture(GL_TEXTURE_2D, 0);
	glDisable(GL_TEXTURE_2D);
}