This program tests texture copying from the frame buffer. There is a capture window on the screen; the image inside the window is copied into the texture buffer. The copied texture is mapped on a panel by the next frame. The size of the capture window and the texture format can both be changed. Two options for the texture copy API (mipmap filter and clear) can be also controlled.
| Functions | Parameters | Description |
GXSetTexCopySrc |
Top / left / width / height | Various values. |
GXSetTexCopyDst |
Width and height | Various values. |
| Format | GX_TF_I4, GX_TF_I8, GX_TF_IA4, GX_TF_IA8, GX_TF_RGB565, GX_TF_RGB5A3, GX_TF_RGBA8, GX_TF_A8. |
|
| Mipmap filter | GX_TRUE / GX_FALSE |
|
GXCopyTex |
Image pointer | Appropriate value. |
| Clear operation | GX_TRUE / GX_FALSE |
|
GXSetCopyClear |
Color | Only one color. |
| Z value | Always 0xFFFFFF. | |
GXInitTexObj |
Image pointer | Appropriate value. |
| Width and height | Various values. | |
| Format | GX_TF_I4, GX_TF_I8, GX_TF_IA4, GX_TF_IA8, GX_TF_RGB565, GX_TF_RGB5A3, GX_TF_RGBA8, GX_TF_A8. |
|
| Wrap mode (s, t) | GX_CLAMP, GX_REPEAT. |
|
| Mipmap | Always GX_FALSE. |
|
GXLoadTexObj |
Destination texture name | Always GX_TEXMAP0. |
GXGetTexBufferSize |
Width and height | Various values. |
| Format | GX_TF_I4, GX_TF_I8, GX_TF_IA4, GX_TF_IA8, GX_TF_RGB565, GX_TF_RGB5A3, GX_TF_RGBA8, GX_TF_A8. |
|
| Mipmap | Always GX_FALSE. |
|
| Max LOD | N/A | |
GXInvalidateTexAll |
(No parameter) | |
GXSetTevOp |
TEV stage ID | Always GX_TEVSTAGE0. |
| Operation mode | GX_PASSCLR, GX_DECAL, GX_REPLACE. |
PAUSE exits the test.
The Control Stick moves the capture window.
A Button changes the texture format.
C stick changes the size of the window.
L and R Buttons move the camera.
Y button turns the mipmap (box) filter option ON/OFF.
X Button turns the clear frame buffer option ON/OFF.
B button changes the texture format for copying.
RGB565 format, mipmap filter=OFF, clear option=OFF.
I4 format, mipmap filter=OFF, clear option=OFF.
A8 format, mipmap filter=OFF, clear option=OFF.
RGBA8 format, mipmap filter=ON, clear option=OFF.
IA8 format, mipmap filter=OFF, clear option=ON
None.
2006/03/01 Initial version.
CONFIDENTIAL