int InitGraphics(void)
{
unsigned int FrameBufferVRAMAddress;
GsResetGraph(GS_INIT_RESET, GS_INTERLACED, GS_MODE_NTSC, GS_FFMD_FIELD);
FrameBufferVRAMAddress=GsVramAllocFrameBuffer(SCREEN_WIDTH, SCREEN_HEIGHT, GS_PIXMODE_32);
GsSetDefaultDrawEnv(&draw_env, GS_PIXMODE_32, SCREEN_WIDTH, SCREEN_HEIGHT);
//Retrieve screen offset parameters.
ScreenOffsetX=draw_env.offset_x;
ScreenOffsetY=draw_env.offset_y;
GsSetDefaultDrawEnvAddress(&draw_env, FrameBufferVRAMAddress);
GsSetDefaultDisplayEnv(&disp_env, GS_PIXMODE_32, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0);
GsSetDefaultDisplayEnvAddress(&disp_env, FrameBufferVRAMAddress);
//execute draw/display environment(s) (context 1)
GsPutDrawEnv1(&draw_env);
GsPutDisplayEnv1(&disp_env);
//set common primitive-drawing settings (Refer to documentation on PRMODE and PRMODECONT registers).
GsOverridePrimAttributes(GS_DISABLE, 0, 0, 0, 0, 0, 0, 0, 0);
//set transparency settings for context 1 (Refer to documentation on TEST and TEXA registers).
GsEnableAlphaTransparency1(GS_ENABLE, GS_ALPHA_GEQUAL, 0x01, 0x00);
GsEnableAlphaBlending1(GS_ENABLE, 0);
//set transparency settings for context 2 (Refer to documentation on TEST and TEXA registers).
GsEnableAlphaTransparency2(GS_ENABLE, GS_ALPHA_GEQUAL, 0x01, 0x00);
GsEnableAlphaBlending2(GS_ENABLE, 0);
return 0;
}
int InitGraphics()
{
GsInit();
GsSetVideoMode(1, 2, 0);
GsSetCRTCSettings(CRTC_SETTINGS_DEFAULT1, 255); //display context 1 on tv
GsSetDefaultDrawEnv(&draw_env, SCREEN_OFFSET_X, SCREEN_OFFSET_Y, SCREEN_WIDTH, SCREEN_HEIGHT);
GsSetDefaultDrawEnvAddress(&draw_env, 0, SCREEN_WIDTH/64, GS_PIXMODE_32);
GsSetDefaultDisplayEnv(&disp_env, 656, 36+(36/2), SCREEN_WIDTH, SCREEN_HEIGHT);
GsSetDefaultDisplayEnvAddress(&disp_env, 0, SCREEN_WIDTH/64, GS_PIXMODE_32);
//execute draw/display environment(s) (context 1)
GsPutDrawEnv1(&draw_env);
GsPutDisplayEnv1(&disp_env);
//set some common stuff
GsOverridePrimAttributes(GS_DISABLE, 0, 0, 0, 0, 0, 0, 0, 0);
// contex 1
GsEnableAlphaTransparency1(GS_ENABLE, GS_ALPHA_GEQUAL, 0x01, 0x00);
// contex 2
GsEnableAlphaTransparency2(GS_ENABLE, GS_ALPHA_GEQUAL, 0x01, 0x00);
GsEnableAlphaBlending1(GS_ENABLE, 0);
GsEnableAlphaBlending2(GS_ENABLE, 0);
return 0;
}
int InitGraphics()
{
static int env0_address;
static int env1_address;
GsInit();
GsSetVideoMode(1, 2, 0);
GsSetCRTCSettings(CRTC_SETTINGS_DEFAULT1, 255); //display contex 1
//alloc 2 buffers in vram
env0_address = GsVramAllocFrameBuffer(SCREEN_WIDTH, SCREEN_HEIGHT, GS_PIXMODE_32);
env1_address = GsVramAllocFrameBuffer(SCREEN_WIDTH, SCREEN_HEIGHT, GS_PIXMODE_32);
/*********SETUP CONTEX 1 ENVIRONMENT*************/
GsSetDefaultDrawEnv (&draw_env[0], SCREEN_OFFSET_X, SCREEN_OFFSET_Y, SCREEN_WIDTH, SCREEN_HEIGHT);
GsSetDefaultDrawEnvAddress(&draw_env[0], env0_address, SCREEN_WIDTH/64, GS_PIXMODE_32);
GsSetDefaultDisplayEnv (&disp_env[0], 656, 36+(36/2), SCREEN_WIDTH, SCREEN_HEIGHT);
GsSetDefaultDisplayEnvAddress(&disp_env[0], env1_address, SCREEN_WIDTH/64, GS_PIXMODE_32);
/*********SETUP CONTEX 2 ENVIRONMENT*************/
GsSetDefaultDrawEnv (&draw_env[1], SCREEN_OFFSET_X, SCREEN_OFFSET_Y, SCREEN_WIDTH, SCREEN_HEIGHT);
GsSetDefaultDrawEnvAddress(&draw_env[1], env1_address, SCREEN_WIDTH/64, GS_PIXMODE_32);
GsSetDefaultDisplayEnv (&disp_env[1], 656, 36+(36/2), SCREEN_WIDTH, SCREEN_HEIGHT);
GsSetDefaultDisplayEnvAddress(&disp_env[1], env0_address, SCREEN_WIDTH/64, GS_PIXMODE_32);
//execute draw/display environment(s) (contex 1)
GsPutDrawEnv1 (&draw_env[0]);
GsPutDisplayEnv1(&disp_env[0]);
//execute draw/display environment(s) (contex 2)
GsPutDrawEnv2 (&draw_env[1]);
GsPutDisplayEnv2(&disp_env[1]);
//set some common stuff
GsOverridePrimAttributes(GS_DISABLE, 0, 0, 0, 0, 0, 0, 0, 0);
// contex 1
GsEnableAlphaTransparency1(GS_ENABLE, GS_ALPHA_GEQUAL, 0x01, 0x00);
// contex 2
GsEnableAlphaTransparency2(GS_ENABLE, GS_ALPHA_GEQUAL, 0x01, 0x00);
GsEnableAlphaBlending1(GS_ENABLE, 0);
GsEnableAlphaBlending2(GS_ENABLE, 0);
return 0;
}
