X hits on this document

471 views

0 shares

0 downloads

0 comments

95 / 174

Microsoft Windows Logo Program System and Device Requirements  —  95

Integrated solutions must support texture format 8:8:8:8 ARGB.

B4.1.4.8.4 Hardware supports Z comparison modes and Direct3D-compatible formats.

The 3-D hardware must support 32-bit (24-bit Z and 8-bit stencil), unsigned, lockable Z buffer format and all Z comparison modes.

Hardware that supports Z buffering must support clearing of the Z buffer through the DirectDraw depth-fill blt mechanism. In addition, hardware must support clearing of color, Z buffers, and destination surfaces using this method as well.

B4.1.4.8.5 Fog blending term is calculated on a per-pixel basis rather than per vertex.

And is either range-based (range-based fog) or depth-based (pixel fog). Driver support for triangle strips and fans.

B4.1.4.8.5.1 Integrated solutions must support per-pixel fog.

B4.1.4.8.5.2 Integrated solutions must support MODULATEALPHA texture combinations.

Also, multitexture support with fogging and alpha blending are not required.

Mobile PC Note: Requirements are defined in A3.4.4.7.

B4.1.4.9 Graphics adapter uses PCI, AGP, or another high-speed bus

B4.1.4.9.1 Equivalent of AGP 2X required for discrete solutions; AGP 1X or equivalent required for integrated solutions.

Primary graphics adapter uses AGP or another high-speed connection. AGP requirements are defined in AGP Specification, Revision 2.0. Specific AGP requirements are as follows:

Discrete graphics solutions require the equivalent of AGP 2.X.

Integrated graphics solutions require the equivalent of AGP 1.X.

Other buses, such as PCI, may be used for secondary graphics adapters.

B4.1.4.10 DELETED
B4.1.4.11 Graphics subsystem support for TV or DVD-Video playback, if present, meets performance requirements

If support for TV or DVD-Video playback is implemented, hardware may support video overlay surface with scaling. It is recommended that the overlay surface will be implemented using one of the required YUV formats. If the graphics adapter supports one or more video overlays, the overlay must have the following characteristic:

B4.1.4.11.1 Size.

Discrete Graphics solutions support 720 x 576 or larger surfaces. Mobile platforms and integrated graphics solutions support 720 × 576 or larger.

B4.1.4.11.2 DELETED
B4.1.4.11.3 DELETED
B4.1.4.11.4 DELETED

B4.1.4.11.4.1 DELETED

B4.1.4.11.4.2 DELETED

© 1999-2002 Microsoft Corporation. All rights reserved.

Document info
Document views471
Page views471
Page last viewedThu Dec 08 15:03:39 UTC 2016
Pages174
Paragraphs4629
Words57695

Comments