Merge branch 'master' of github.com:FacialTurd/PowderToypp

1 files changed, 248 insertions, 0 deletions

diff --git a/src/graphics/Graphics.h b/src/graphics/Graphics.h
new file mode 100644
index 0000000..53d3ee7
--- /dev/null
+++ b/src/graphics/Graphics.h
@@ -0,0 +1,248 @@
+#ifndef GRAPHICS_H
+#define GRAPHICS_H
+
+#include <string>
+#include <cstdlib>
+#include <cstring>
+#include <vector>
+#if defined(OGLI)
+#include "OpenGLHeaders.h"
+#endif
+#include "Config.h"
+//#include "powder.h"
+
+#ifdef PIX16
+#define PIXELSIZE 2
+#define PIXPACK(x) ((((x)>>8)&0xF800)|(((x)>>5)&0x07E0)|(((x)>>3)&0x001F))
+#define PIXRGB(r,g,b) ((((r)<<8)&0xF800)|(((g)<<3)&0x07E0)|(((b)>>3)&0x001F))
+#define PIXR(x) (((x)>>8)&0xF8)
+#define PIXG(x) (((x)>>3)&0xFC)
+#define PIXB(x) (((x)<<3)&0xF8)
+#else
+#define PIXELSIZE 4
+#ifdef PIX32BGR
+#define PIXPACK(x) ((((x)>>16)&0x0000FF)|((x)&0x00FF00)|(((x)<<16)&0xFF0000))
+#define PIXRGB(r,g,b) (((b)<<16)|((g)<<8)|((r)))// (((b)<<16)|((g)<<8)|(r))
+#define PIXR(x) ((x)&0xFF)
+#define PIXG(x) (((x)>>8)&0xFF)
+#define PIXB(x) ((x)>>16)
+#else
+#ifdef PIX32BGRA
+#define PIXPACK(x) ((((x)>>8)&0x0000FF00)|(((x)<<8)&0x00FF0000)|(((x)<<24)&0xFF000000))
+#define PIXRGB(r,g,b) (((b)<<24)|((g)<<16)|((r)<<8))
+#define PIXR(x) (((x)>>8)&0xFF)
+#define PIXG(x) (((x)>>16)&0xFF)
+#define PIXB(x) (((x)>>24))
+#elif defined(PIX32OGL)
+#define PIXPACK(x) (0xFF000000|((x)&0xFFFFFF))
+#define PIXRGB(r,g,b) (0xFF000000|((r)<<16)|((g)<<8)|((b)))// (((b)<<16)|((g)<<8)|(r))
+#define PIXRGBA(r,g,b,a) (((a)<<24)|((r)<<16)|((g)<<8)|((b)))// (((b)<<16)|((g)<<8)|(r))
+#define PIXA(x) (((x)>>24)&0xFF)
+#define PIXR(x) (((x)>>16)&0xFF)
+#define PIXG(x) (((x)>>8)&0xFF)
+#define PIXB(x) ((x)&0xFF)
+#else
+#define PIXPACK(x) (x)
+#define PIXRGB(r,g,b) (((r)<<16)|((g)<<8)|(b))
+#define PIXR(x) ((x)>>16)
+#define PIXG(x) (((x)>>8)&0xFF)
+#define PIXB(x) ((x)&0xFF)
+#endif
+#endif
+#endif
+
+#ifdef PIX16
+typedef unsigned short pixel;
+#else
+typedef unsigned int pixel;
+#endif
+
+//Icon names, see Graphics::draw_icon
+enum Icon
+{
+	NoIcon = 0,
+	IconOpen,
+	IconReload,
+	IconSave,
+	IconVoteUp,
+	IconVoteDown,
+	IconTag,
+	IconNew,
+	IconLogin,
+	IconRenderSettings,
+	IconSimulationSettings,
+	IconPause,
+	IconVoteSort,
+	IconDateSort,
+	IconMyOwn,
+	IconFavourite,
+	IconSearch,
+	IconDelete,
+	IconAdd,
+	IconReport,
+	IconUsername,
+	IconPassword,
+	IconClose,
+	IconEffect,
+	IconFire,
+	IconGlow,
+	IconBlur,
+	IconBlob,
+	IconBasic,
+	IconAltAir,
+	IconPressure,
+	IconVelocity,
+	IconWarp,
+	IconPersistant,
+	IconHeat,
+	IconLife,
+	IconGradient
+};
+
+//"Graphics lite" - slightly lower performance due to variable size,
+class VideoBuffer
+{
+public:
+	pixel * Buffer;
+	int Width, Height;
+
+	VideoBuffer(const VideoBuffer & old);
+	VideoBuffer(VideoBuffer * old);
+	VideoBuffer(int width, int height);
+	void Resize(float factor, bool resample = false);
+	TPT_INLINE void BlendPixel(int x, int y, int r, int g, int b, int a)
+	{
+	#ifdef PIX32OGL
+		pixel t;
+		if (x<0 || y<0 || x>=Width || y>=Height)
+			return;
+		if (a!=255)
+		{
+			t = Buffer[y*(Width)+x];
+			r = (a*r + (255-a)*PIXR(t)) >> 8;
+			g = (a*g + (255-a)*PIXG(t)) >> 8;
+			b = (a*b + (255-a)*PIXB(t)) >> 8;
+			a = a > PIXA(t) ? a : PIXA(t);
+		}
+		Buffer[y*(Width)+x] = PIXRGBA(r,g,b,a);
+	#else
+		pixel t;
+		if (x<0 || y<0 || x>=Width || y>=Height)
+			return;
+		if (a!=255)
+		{
+			t = Buffer[y*(Width)+x];
+			r = (a*r + (255-a)*PIXR(t)) >> 8;
+			g = (a*g + (255-a)*PIXG(t)) >> 8;
+			b = (a*b + (255-a)*PIXB(t)) >> 8;
+		}
+		Buffer[y*(Width)+x] = PIXRGB(r,g,b);
+	#endif
+	}
+
+	TPT_INLINE void SetPixel(int x, int y, int r, int g, int b, int a)
+	{
+		if (x<0 || y<0 || x>=Width || y>=Height)
+				return;
+	#ifdef PIX32OGL
+		Buffer[y*(Width)+x] = PIXRGBA(r,g,b,a);
+	#else
+		Buffer[y*(Width)+x] = PIXRGB((r*a)>>8, (g*a)>>8, (b*a)>>8);
+	#endif
+	}
+
+	TPT_INLINE void AddPixel(int x, int y, int r, int g, int b, int a)
+	{
+		pixel t;
+		if (x<0 || y<0 || x>=Width || y>=Height)
+			return;
+		t = Buffer[y*(Width)+x];
+		r = (a*r + 255*PIXR(t)) >> 8;
+		g = (a*g + 255*PIXG(t)) >> 8;
+		b = (a*b + 255*PIXB(t)) >> 8;
+		if (r>255)
+			r = 255;
+		if (g>255)
+			g = 255;
+		if (b>255)
+			b = 255;
+		Buffer[y*(Width)+x] = PIXRGB(r,g,b);
+	}
+	int SetCharacter(int x, int y, int c, int r, int g, int b, int a);
+	int BlendCharacter(int x, int y, int c, int r, int g, int b, int a);
+	int AddCharacter(int x, int y, int c, int r, int g, int b, int a);
+	~VideoBuffer();
+};
+
+class Graphics
+{
+public:
+	pixel *vid;
+	int sdl_scale;
+#ifdef OGLI
+	//OpenGL specific instance variables
+	GLuint vidBuf, textTexture;
+	void Reset();
+ #endif
+
+	//Common graphics methods in Graphics.cpp
+	static char * GenerateGradient(pixel * colours, float * points, int pointcount, int size);
+
+	//PTIF methods
+	static void *ptif_pack(pixel *src, int w, int h, int *result_size);
+	static pixel *ptif_unpack(void *datain, int size, int *w, int *h);
+	static pixel *resample_img_nn(pixel *src, int sw, int sh, int rw, int rh);
+	static pixel *resample_img(pixel *src, int sw, int sh, int rw, int rh);
+	static pixel *rescale_img(pixel *src, int sw, int sh, int *qw, int *qh, int f);
+	static pixel *render_packed_rgb(void *image, int width, int height, int cmp_size);
+
+	//Font/text metrics
+	static int CharIndexAtPosition(char *s, int positionX, int positionY);
+	static int PositionAtCharIndex(char *s, int charIndex, int & positionX, int & positionY);
+	static int CharWidth(char c);
+	static int textnwidth(char *s, int n);
+	static void textnpos(char *s, int n, int w, int *cx, int *cy);
+	static int textwidthx(char *s, int w);
+	static int textposxy(char *s, int width, int w, int h);
+	static int textwrapheight(char *s, int width);
+	static int textwidth(const char *s);
+	static void textsize(const char * s, int & width, int & height);
+
+	VideoBuffer DumpFrame();
+
+	void Acquire();
+	void Release();
+
+	void blendpixel(int x, int y, int r, int g, int b, int a);
+	void addpixel(int x, int y, int r, int g, int b, int a);
+
+	void draw_icon(int x, int y, Icon icon, unsigned char alpha = 255, bool invert = false);
+
+	void Clear();
+	void Finalise();
+	//
+	int drawtext(int x, int y, const char *s, int r, int g, int b, int a);
+	int drawtext(int x, int y, std::string s, int r, int g, int b, int a);
+	int drawchar(int x, int y, int c, int r, int g, int b, int a);
+	int addchar(int x, int y, int c, int r, int g, int b, int a);
+
+	void xor_pixel(int x, int y);
+	void xor_line(int x, int y, int x2, int y2);
+	void xor_rect(int x, int y, int width, int height);
+	void xor_bitmap(unsigned char * bitmap, int x, int y, int w, int h);
+
+	void draw_line(int x, int y, int x2, int y2, int r, int g, int b, int a);
+	void drawrect(int x, int y, int width, int height, int r, int g, int b, int a);
+	void fillrect(int x, int y, int width, int height, int r, int g, int b, int a);
+	void clearrect(int x, int y, int width, int height);
+	void 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);
+
+	void draw_image(pixel *img, int x, int y, int w, int h, int a);
+	void draw_image(const VideoBuffer & vidBuf, int w, int h, int a);
+	void draw_image(VideoBuffer * vidBuf, int w, int h, int a);
+
+	Graphics();
+	~Graphics();
+};
+
+#endif