Progress

DXGL is currently a work-in-progress and is currently considered alpha-quality software..

See DXGL Features for detailed information.

See Version history from the downloads section for release information and previous version downloads.

Also see DXGL Test Results for some detailed tests performed occasionally.

What works:

• DirectDraw object creation and destruction (versions 1 to 7)
• Display mode enumeration and switching (with emulated mode switching)
• Fullscreen and windowed modes.
• Basic Blt() functionality
• 8-bit color emulated with GLSL shader

What partially works:

• 3D graphics are only partially supported.

What doesn't work:

• Many functions are stubbed out and return an error

Roadmap

These are goals to be set for future releases. This is completely subject to change at any time.

• 0.5.13

Support DirectDraw1 Z buffers: 100% complete

Create new/better DXGLCFG application: 100% complete

Merge DXGL Config and DXGL Test: 100% complete

Isolate API from backend threads: 95% complete

Improve DDraw API: 15% complete

Improve D3D backend: 1% complete

Basic VSync support: 0% complete

Postprocess scaling for change mode with fallback: 0% complete

Fix first frame not being drawn when postprocess scaling is enabled.: 0% complete

Support custom primary scaling: 0% complete

Increased customization for extra display modes, add UHD modes: 0% complete

Allow selecting specific color depths to add: 0% complete

Remember window position and size in forced-window mode: 0% complete

Separate screen filter and Blt() filter: 0% complete

Improve filtered color key Blt(): 0% complete

Scaling hack - Lands of Lore Guardians of Destiny: 0% complete

Scaling hack - Zelda Classic: 0% complete

• 0.5.x

Add mipmap surfaces: 95% complete

Support D3D2 textures: 95% complete

Add depth buffer fill: 90% complete

Fix reference counts: 90% complete

Implement D3D execute buffers: 75% complete

Rework D3DTLVERTEX rendering: 50% complete

Add software T&L for execute buffers: 50% complete

Fix resource leaks: 25% complete

Group renderer commands into batches: 10% complete

Add client memory surfaces: 10% complete

Add framerate limiter: 0% complete

Improve fog support: 0% complete

Add multisampling: 0% complete

Precompile generated shaders used in previous sessions: 0% complete

Fix 16-bit 565 surfaces on ATI Radeon X300 series: 0% complete

Fix clippers on NVIDIA GeForce 6 series GPU: 0% complete

Fix 8-bit color with Mesa software renderer and Geforce 6 series: 0% complete

• 0.6.x

Add DXGL loader stub to fix programs that demand ddraw.dll from system32: 0% complete

• Future

Support multiple DirectDraw drivers per process: 75% complete

Validate DDraw parameters: 75% complete

Support surface color depths: 75% complete

Support NULL HWND: 25% complete

Implement and improve API functions: 25% complete

Convert from C++ to C: 19% complete

Support GCC/MinGW compilation: 5% complete

Create Doxygen documentation: 5% complete

Add mingw build support: 0% complete

Support PBO texture transfer: 0% complete

Add optimized texture color conversion: 0% complete

Support palette fading without updating primary: 0% complete

Advanced VSync support: 0% complete

Hook mouse APIs - GetCursorPos, SetCursorPos, ClipCursor, GetClipCursor, GetCursorInfo: 0% complete

Hook GDI palette function: 0% complete

Support Windows 10 1607 DPI awareness: 0% complete

Workaround for Windows 10 Creators Edition "System (Enhanced)" scaling, if necessary: 0% complete

Support scaling of windowed modes: 0% complete

Support configuring old/legacy DXGL versions [MAYBE]: 0% complete