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https://github.com/wiiu-env/wut.git
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177 lines
4.1 KiB
C
Executable File
177 lines
4.1 KiB
C
Executable File
#include "draw.h"
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#include <coreinit/cache.h>
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#include <coreinit/screen.h>
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void *screenBuffer;
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void flipBuffers()
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{
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//Grab the buffer size for each screen (TV and gamepad)
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int buf0_size = OSScreenGetBufferSizeEx(0);
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int buf1_size = OSScreenGetBufferSizeEx(1);
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//Flush the cache
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DCFlushRange((void *)screenBuffer + buf0_size, buf1_size);
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DCFlushRange((void *)screenBuffer, buf0_size);
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//Flip the buffer
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OSScreenFlipBuffersEx(0);
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OSScreenFlipBuffersEx(1);
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}
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void drawString(int x, int y, char * string)
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{
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OSScreenPutFontEx(0, x, y, string);
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OSScreenPutFontEx(1, x, y, string);
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}
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void fillScreen(char r,char g,char b,char a)
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{
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uint32_t num = (r << 24) | (g << 16) | (b << 8) | a;
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OSScreenClearBufferEx(0, num);
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OSScreenClearBufferEx(1, num);
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}
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//Rendering in
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void drawPixel(int x, int y, char r, char g, char b, char a)
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{
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uint32_t num = (r << 24) | (g << 16) | (b << 8) | a;
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OSScreenPutPixelEx(0,x*2,y*2,num);
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OSScreenPutPixelEx(1,x*2,y*2,num);
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OSScreenPutPixelEx(0,x*2+1,y*2,num);
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OSScreenPutPixelEx(1,x*2+1,y*2,num);
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OSScreenPutPixelEx(0,x*2,y*2+1,num);
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OSScreenPutPixelEx(1,x*2,y*2+1,num);
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OSScreenPutPixelEx(0,x*2+1,y*2+1,num);
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OSScreenPutPixelEx(1,x*2+1,y*2+1,num);
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//Code to write to framebuffer directly. For some reason this is only writing to one of the framebuffers when calling flipBuffers. Should provide speedup but needs investigation.
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/*
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int buf0_size = OSScreenGetBufferSizeEx(0);
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int height = 1024;
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int width = 1280;
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char *screen = (void *)screenBuffer;
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uint32_t v=(x + y*width)*4;
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screen[v]=r;
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screen[v+1]=g;
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screen[v+2]=b;
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screen[v+3]=a;
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height = 480;
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width = 896;
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char *screen2 = (void *)screenBuffer + buf0_size;
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v=(x + y*width)*4;
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screen2[v]=r;
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screen2[v+1]=g;
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screen2[v+2]=b;
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screen2[v+3]=a;
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*/
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}
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void drawLine(int x1, int y1, int x2, int y2, char r, char g, char b, char a)
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{
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int x, y;
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if (x1 == x2){
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if (y1 < y2) for (y = y1; y <= y2; y++) drawPixel(x1, y, r, g, b, a);
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else for (y = y2; y <= y1; y++) drawPixel(x1, y, r, g, b, a);
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}
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else {
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if (x1 < x2) for (x = x1; x <= x2; x++) drawPixel(x, y1, r, g, b, a);
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else for (x = x2; x <= x1; x++) drawPixel(x, y1, r, g, b, a);
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}
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}
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void drawRect(int x1, int y1, int x2, int y2, char r, char g, char b, char a)
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{
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drawLine(x1, y1, x2, y1, r, g, b, a);
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drawLine(x2, y1, x2, y2, r, g, b, a);
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drawLine(x1, y2, x2, y2, r, g, b, a);
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drawLine(x1, y1, x1, y2, r, g, b, a);
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}
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void drawFillRect(int x1, int y1, int x2, int y2, char r, char g, char b, char a)
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{
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int X1, X2, Y1, Y2, i, j;
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if (x1 < x2){
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X1 = x1;
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X2 = x2;
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}
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else {
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X1 = x2;
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X2 = x1;
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}
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if (y1 < y2){
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Y1 = y1;
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Y2 = y2;
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}
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else {
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Y1 = y2;
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Y2 = y1;
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}
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for (i = X1; i <= X2; i++){
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for (j = Y1; j <= Y2; j++){
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drawPixel(i, j, r, g, b, a);
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}
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}
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}
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void drawCircle(int xCen, int yCen, int radius, char r, char g, char b, char a)
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{
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int x = 0;
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int y = radius;
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int p = (5 - radius * 4) / 4;
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drawCircleCircum(xCen, yCen, x, y, r, g, b, a);
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while (x < y){
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x++;
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if (p < 0){
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p += 2 * x + 1;
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}
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else{
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y--;
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p += 2 * (x - y) + 1;
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}
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drawCircleCircum(xCen, yCen, x, y, r, g, b, a);
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}
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}
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void drawFillCircle(int xCen, int yCen, int radius, char r, char g, char b, char a)
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{
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drawCircle(xCen, yCen, radius, r, g, b, a);
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int x, y;
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for (y = -radius; y <= radius; y++){
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for (x = -radius; x <= radius; x++)
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if (x*x + y*y <= radius*radius + radius * .8f)
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drawPixel(xCen + x, yCen + y, r, g, b, a);
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}
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}
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void drawCircleCircum(int cx, int cy, int x, int y, char r, char g, char b, char a)
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{
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if (x == 0){
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drawPixel(cx, cy + y, r, g, b, a);
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drawPixel(cx, cy - y, r, g, b, a);
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drawPixel(cx + y, cy, r, g, b, a);
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drawPixel(cx - y, cy, r, g, b, a);
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}
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if (x == y){
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drawPixel(cx + x, cy + y, r, g, b, a);
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drawPixel(cx - x, cy + y, r, g, b, a);
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drawPixel(cx + x, cy - y, r, g, b, a);
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drawPixel(cx - x, cy - y, r, g, b, a);
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}
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if (x < y){
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drawPixel(cx + x, cy + y, r, g, b, a);
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drawPixel(cx - x, cy + y, r, g, b, a);
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drawPixel(cx + x, cy - y, r, g, b, a);
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drawPixel(cx - x, cy - y, r, g, b, a);
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drawPixel(cx + y, cy + x, r, g, b, a);
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drawPixel(cx - y, cy + x, r, g, b, a);
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drawPixel(cx + y, cy - x, r, g, b, a);
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drawPixel(cx - y, cy - x, r, g, b, a);
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}
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}
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