u32 tInc, tMsk;
GPUPacket PacketBuffer;
-u16 GPU_FrameBuffer[FRAME_BUFFER_SIZE/2] __attribute__((aligned(16))); // FRAME_BUFFER_SIZE is defined in bytes
+// FRAME_BUFFER_SIZE is defined in bytes; 512K is guard memory for out of range reads
+u16 GPU_FrameBuffer[(FRAME_BUFFER_SIZE+512*1024)/2] __attribute__((aligned(16)));
u32 GPU_GP1;
///////////////////////////////////////////////////////////////////////////////
if (bWrite)
{
p2->GPU_gp1 = GPU_GP1;
+ memset(p2->Control, 0, sizeof(p2->Control));
+ p2->Control[5] = DisplayArea[0] | (DisplayArea[1] << 10);
+ p2->Control[7] = DisplayArea[4] | (DisplayArea[5] << 10);
+ p2->Control[8] = ((GPU_GP1 >> 17) & 0x3f) | ((GPU_GP1 >> 10) & 0x40);
memcpy(p2->FrameBuffer, (u16*)GPU_FrameBuffer, FRAME_BUFFER_SIZE);
return (1);
}
{
GPU_GP1 = p2->GPU_gp1;
memcpy((u16*)GPU_FrameBuffer, p2->FrameBuffer, FRAME_BUFFER_SIZE);
+ GPU_writeStatus((5 << 24) | p2->Control[5]);
+ GPU_writeStatus((7 << 24) | p2->Control[7]);
+ GPU_writeStatus((8 << 24) | p2->Control[8]);
+ gpuSetTexture(GPU_GP1);
return (1);
}
return (0);
static s16 old_res_horz, old_res_vert, old_rgb24;
s16 isRGB24 = (GPU_GP1 & 0x00200000) ? 1 : 0;
s16 h0, x0, y0, w0, h1;
- u8 *dest = (u8 *)screen_buf;
u16 *srcs;
+ u8 *dest;
x0 = DisplayArea[0] & ~3; // alignment needed by blitter
y0 = DisplayArea[1];
h1 = DisplayArea[5] - DisplayArea[4]; // display needed
if (h0 == 480) h1 = Min2(h1*2,480);
+ if (h1 <= 0)
+ return;
+
if (w0 != old_res_horz || h1 != old_res_vert || isRGB24 != old_rgb24)
{
old_res_horz = w0;
old_res_vert = h1;
old_rgb24 = (s16)isRGB24;
- cbs->pl_fbdev_set_mode(w0, h1, isRGB24 ? 24 : 16);
+ screen_buf = cbs->pl_fbdev_set_mode(w0, h1, isRGB24 ? 24 : 16);
}
+ dest = (u8 *)screen_buf;
if (isRGB24)
{
if (!fb_dirty || (GPU_GP1&0x08800000))
return;
- blit();
+ if (!isSkip) {
+ blit();
+
+ fb_dirty = false;
+ if (*cbs->fskip_option)
+ isSkip = true;
+ }
+ else
+ isSkip = false;
}
long GPUopen(unsigned long *, char *, char *)