examples/canvas/source/main.c

   1 #include "ps4.h"
   2
   3 unsigned int *framebuffer = NULL;
   4
   5 void getFramebuffer(void) {
   6         struct memoryRegionInfo info;
   7         struct otherMemoryRegionInfo otherInfo;
   8
   9         void *m = NULL;
  10
  11         int i;
  12         for(i = 0; i < 16; i++) {
  13                 // Find base of next mapping
  14                 getOtherMemoryInfo(m, 1, &otherInfo);
  15
  16                 // Get more info about this mapping
  17                 getMemoryInfo(otherInfo.base, &info);
  18
  19                 // Search mappings 14 and 15 if they are readable
  20                 if((i == 14 || i == 15) && (info.flags & PROT_CPU_READ)) {
  21                         framebuffer = info.base;
  22
  23                         // Search for the colour we filled the framebuffer with
  24                         while(framebuffer < (unsigned int *)info.end) {
  25                                 if(
  26                                         framebuffer[0] == 0xffc2c2c2 &&
  27                                         framebuffer[1] == 0xffc2c2c2
  28                                 ) break;
  29
  30                                 framebuffer++;
  31                         }
  32                 }
  33
  34                 m = info.end;
  35         }
  36 }
  37
  38 void *canvasRenderer(void *arg) {
  39         getFramebuffer();
  40
  41         unsigned int colour = RED;
  42
  43         while(1) {
  44                 int x, y;
  45                 for(x = 0; x < 160; x++) {
  46                         for(y = 0; y < 144 + 16; y++) {
  47                                 framebuffer[x + y * 144] = colour;
  48
  49                                 colour = ((colour + 1) & 0x00ffffff) | (0xff << 24);
  50                         }
  51                 }
  52         }
  53
  54         return NULL;
  55 }
  56
  57 int _main(void) {
  58         // Init and resolve libraries
  59         initKernel();
  60
  61         initPthread();
  62
  63
  64         // Create our canvas rendering thread
  65         ScePthread thread;
  66         scePthreadCreate(&thread, NULL, canvasRenderer, NULL, "canvasRenderer");
  67
  68
  69         // Let this thread get back to updating the JS engine
  70         return 0;
  71 }