From 8eb0808fecb8c57eff877fddf38db91b1f067921 Mon Sep 17 00:00:00 2001
From: knolax <1339802534.kk@gmail.com>
Date: Tue, 28 Feb 2017 11:07:10 -0500
Subject: initial commit, this is the gfx library which serves as a crappy
 wrapper for SDL.

---
 gfx.cpp | 152 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 gfx.cpp

(limited to 'gfx.cpp')

diff --git a/gfx.cpp b/gfx.cpp
new file mode 100644
index 0000000..ca597d5
--- /dev/null
+++ b/gfx.cpp
@@ -0,0 +1,152 @@
+#include "gfx.h"
+//all the global variables first set here
+SDL_Window *mwindowp; // main window were everything foes
+SDL_DisplayMode * screenp;
+SDL_Renderer * renderp;
+TTF_Font * fontp;
+int maxx;
+int maxy;
+int initgfx(int x, int y,const  char * title) {
+	//initializing SDL 2
+	SDL_Init(SDL_INIT_EVERYTHING);
+	//sets global variables for ease of access later
+	//they are 100 by 200 for now because DisplayMode takes long to implement
+	//screen resizes are handled by sdl events
+	//we're not gonna hcange these for now
+	maxx = x;
+	maxy = y;
+	//makes sdl compatible with opengl(for later use)
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
+	SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
+	//creates window
+	mwindowp = SDL_CreateWindow(title, 0, 0, maxx, maxy, SDL_WINDOW_OPENGL);
+	//renderer to write to
+	//the int selects which drivers, -1 just selects first applicatble
+	renderp = SDL_CreateRenderer(mwindowp, -1,SDL_RENDERER_ACCELERATED);
+	//load truetype font
+	int err = TTF_Init();
+	fontp = TTF_OpenFont("Terminus.ttf",18);
+	if (fontp == NULL) {
+		printf("font failed to load\n");
+		printf("ttf error %s",TTF_GetError());
+	}
+	return 0;
+}
+//two draw functions for convenience
+int drawimg(int x, int y, int w, int h,SDL_Texture * tex) {
+	SDL_Rect r;
+	r.x = x;
+	r.y = y;
+	r.w = w;
+	r.h = h;
+	//null means entire source texture
+	SDL_RenderCopy(renderp, tex, NULL, &r);
+	return 0;
+		
+}
+int drawimg(SDL_Rect r, SDL_Texture  * tex) {
+	SDL_RenderCopy(renderp, tex, NULL, &r);
+	return 0;
+}
+SDL_Texture * loadtexture(const char * file) {
+	SDL_Surface * tsp;
+	SDL_Texture * ttp;
+	tsp = SDL_LoadBMP(file);
+	ttp = SDL_CreateTextureFromSurface(renderp, tsp);
+	SDL_SetTextureBlendMode(ttp, SDL_BLENDMODE_ADD);
+	SDL_FreeSurface(tsp);
+	return ttp;
+}
+int drawimg(int x, int y, int w, int h, const char * file) {
+	SDL_Texture * ttp = loadtexture(file);	
+	drawimg(x,y,w,h,ttp);
+	SDL_DestroyTexture(ttp);
+}
+int drawrect (int x, int y, int w, int h, const char * color) {
+	std::string str;
+	str = color;
+	SDL_Rect r;
+	r.x = x;
+	r.y = y;
+	r.w = w;
+	r.h = h;
+	if (!str.compare("red")) {
+		SDL_SetRenderDrawColor(renderp,255,0,0,255);
+	} 
+	if (!str.compare("blue")) {
+		SDL_SetRenderDrawColor(renderp,0,0,255,255);
+	}
+	if (!str.compare("orange")) {
+		SDL_SetRenderDrawColor(renderp,255,180,20,255);
+	}
+	if (!str.compare("white")) {
+		SDL_SetRenderDrawColor(renderp,255,255,255,255);
+	}
+	if (!str.compare("black")) {
+		SDL_SetRenderDrawColor(renderp,0,0,0,255);
+	}
+	SDL_RenderFillRect(renderp,&r);
+	SDL_SetRenderDrawColor(renderp,0,0,0,255);
+	return 0;
+}
+int drawrect (int x, int y, int w, int h,int r, int g, int b, int a) {
+	SDL_Rect rect;
+	rect.x = x;
+	rect.y = y;
+	rect.w = w;
+	rect.h = h;
+	SDL_SetRenderDrawColor(renderp,r,g,b,a);
+	SDL_SetRenderDrawBlendMode(renderp, SDL_BLENDMODE_ADD);
+	SDL_RenderFillRect(renderp,&rect);
+	SDL_SetRenderDrawColor(renderp,0,0,0,255);
+	return 0;
+}
+//draws text
+int drawtext(int x, int y,const char * text, SDL_Color c) {
+	//surface the font renderer writes to
+	SDL_Surface * sp;
+	//color of text
+	SDL_Color co;
+	co.r = 100;
+	co.g = 100;
+	co.b = 100;
+	co.a = 100;
+	//renders text with global font
+	sp = TTF_RenderText_Solid(fontp, text, c);
+	//texture to actually draw
+	SDL_Texture * tp;
+	tp = SDL_CreateTextureFromSurface(renderp, sp);
+	//the surface has to be freed because it is only used once and the pointer
+	//to it was declared in a funcion
+	SDL_FreeSurface(sp);
+	//finding the width and height of the text
+	int w;
+	int h;
+	SDL_QueryTexture(tp, NULL, NULL, &w, &h);
+	//drawing the texture
+	drawimg(x, y, w, h, tp);
+	SDL_DestroyTexture(tp);
+}
+//this is where almost all of the grame code is
+int updategfx() {
+
+	//checks the states of the buttons and handles them accordingly
+	
+	//clears renderer buffer
+	
+	SDL_RenderPresent(renderp);
+	return 0;
+}
+int cleargfx() {
+	SDL_RenderClear(renderp);
+}
+//quits all the libraries and releases some memory
+int quitgfx() {
+	//release of context
+	SDL_DestroyRenderer(renderp);
+	TTF_Quit();
+	SDL_Quit();
+	return 0;
+}
-- 
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