mode | Screen mode |
frame | Frame buffer mode |
count | Frame count |
The size of the 2D clip area is set to the same size as the screen. Z clip set between -1.0 and -6000.0. Distance of the 3D projection screen set to 500. Aspects of X and Y set to 1.0. Color mode set to NJD_COLOR_MODE_NORMAL.
The following screen modes can be set.
NJD_RESOLUTION_VGA
NJD_RESOLUTION_320x240_NTSCNI
NJD_RESOLUTION_320x240_NTSCI
NJD_RESOLUTION_640x240_NTSCNI
NJD_RESOLUTION_640x240_NTSCI
NJD_RESOLUTION_320x480_NTSCNI_FF
NJD_RESOLUTION_320x480_NTSCNI
NJD_RESOLUTION_320x480_NTSCI
NJD_RESOLUTION_640x480_NTSCNI_FF
NJD_RESOLUTION_640x480_NTSCNI
NJD_RESOLUTION_640x480_NTSCI
NJD_RESOLUTION_320x240_PALNI
NJD_RESOLUTION_320x240_PALI
NJD_RESOLUTION_640x240_PALNI
NJD_RESOLUTION_640x240_PALI
NJD_RESOLUTION_320x480_PALNI_FF
NJD_RESOLUTION_320x480_PALNI
NJD_RESOLUTION_320x480_PALI
NJD_RESOLUTION_640x480_PALNI_FF
NJD_RESOLUTION_640x480_PALNI
NJD_RESOLUTION_640x480_PALI
NJD_RESOLUTION_VGA_ANTI
NJD_RESOLUTION_320x240_NTSCNI_ANTI
NJD_RESOLUTION_320x240_NTSCI_ANTI
NJD_RESOLUTION_640x240_NTSCNI_ANTI
NJD_RESOLUTION_640x240_NTSCI_ANTI
NJD_RESOLUTION_320x480_NTSCNI_FF_ANTI
NJD_RESOLUTION_320x480_NTSCNI_ANTI
NJD_RESOLUTION_320x480_NTSCI_ANTI
NJD_RESOLUTION_640x480_NTSCNI_FF_ANTI
NJD_RESOLUTION_640x480_NTSCNI_ANTI
NJD_RESOLUTION_640x480_NTSCI_ANTI
NJD_RESOLUTION_320x240_PALNI_ANTI
NJD_RESOLUTION_320x240_PALI_ANTI
NJD_RESOLUTION_640x240_PALNI_ANTI
NJD_RESOLUTION_640x240_PALI_ANTI
NJD_RESOLUTION_320x480_PALNI_FF_ANTI
NJD_RESOLUTION_320x480_PALNI_ANTI
NJD_RESOLUTION_320x480_PALI_ANTI
NJD_RESOLUTION_640x480_PALNI_FF_ANTI
NJD_RESOLUTION_640x480_PALNI_ANTI
NJD_RESOLUTION_640x480_PALI_ANTI
Each meanings is as follows.
Notation | Meaning |
VGA | VGA Mode |
320x240 | Screen resolution 320x240 |
320x480 | Screen resolution 320x480 |
640x240 | Screen resolution 640x240 |
640x480 | Screen resolution 640x480 |
NTSC/PAL | Type of display |
I/NI | 30Int Display/60Int Display |
ANTI | Anti-aliase |
FF | TypeB flicker free * |
When FF is not specified, it becomes TypeA flicker free. Refer to Hardware overview (dreamcast_hw.doc) for details.
Frame buffer modes are as follows.
Notation | Meaning |
NJD_FRAMEBUFFER_MODE_RGB565 | red 5bit/green 6bit/blue 5bit |
NJD_FRAMEBUFFER_MODE_RGB555 | red 5bit/green 5bit/blue 5bit |
NJD_FRAMEBUFFER_MODE_ARGB1555 | alpha 1bit/red 5bit/green 5bit/blue 5bit |
NJD_FRAMEBUFFER_MODE_RGB888 | red 8bit/green 8bit/blue 8bit |
NJD_FRAMEBUFFER_MODE_ARGB8888 | alpha 8bit/red 8bit/green 8bit/blue 8bit |
The frame count is specified in 1/60-second units. For example, if "2" is specified, the frame changes every 1/30 seconds. Frame changes are performed with njWaitVSync() function.
njInitSystem( NJD_RESOLUTION_VGA, NJD_FRAMEBUFFER_MODE_RGB565, 1 ); Sets screen resolution to VGA (640x480) and frame speed to 1/60 sec. units.