- Replace gl_FragColor with gl_FragData[0] for GLSL pixel shader output.
- Subtract 1 more constant from total GLSL allowed float constants to
accommodate the PROJECTION matrix row that we reference.
- currently half the shader selection code (GLSL vs ARB) is in
fillGLcaps. The parts that check for software shaders are in
GetDeviceCaps. That placement, will work, but is definitely not optimal.
FillGLcaps should detect support - it should not make decision as to
what's used, because that's not what the purpose of the function is.
GetDeviceCaps should report support as it has already been selected.
Instead, select shader mode in its own function, called in the
appropriate places.
- unifying pixel and vertex shaders into a single selection is a
mistake. A software vertex shader can be coupled with a hardware arb or
glsl pixel shader, or no shader at all. Split them back into two and add
a SHADER_NONE variant.
- drawprim is doing support checks for ARB_PROGRAM, and making shader
decisions based on that - that's wrong, support has already been
checked, and decided upon, and shaders can be implemented via software,
ARB_PROGRAm or GLSL, so that support check isn't valid.
- Store the shader selected mode into the shader itself. Different types
of shaders can be combined, so this is an improvement. In fact, storing
the mode into the settings globally is a mistake as well - it should be
done per device, since different cards have different capabilities.
Make wined3d use register combiners for texture stage operations. In
order to do that the texture unit index needs to be separated from the
texture stage index. For cards that don't support the
NV_register_combiners extension nothing should change.
GL_LIMITS(textures) is currently used for both the number of texture
stages and the maximum number of simultaneous textures. In the current
code that's the same, but in a later patch that will be separated,
since a texture stage doesn't have to reference an actual
texture. Also, shaders can access a larger number of samplers than the
number of texture units the fixed function pipeline can access.
Let the few existing parts which need the capabiliteis use the WineD3D
capability structure (gl_info). This info structure contains next to
'flags' inidicating certain features also all GL/GLX functions
pointers. Because D3D8 moves over to the wined3d gl_info structure all
the gl prototypes in d3dcore_gl.h were unneeded and removed.
reported allowing EVE online to get past the startup screen and
allowing the Fur demo (amongst others) to run in a window, as under
windows, instead of in fullscreen mode.
formats. It should allow some games and applications to run without X
being in the correct backbuffer format (e.g. 16 bit games will run
with a 24bit X backbuffer).
relate to the opengl texture object will only be updated when they are
out of sync, this reduces the number of texture object state changes
during game play in Axis and allies from several hundreds to 0 or 1.
any objects referenced by the internal stateblock are released when
the stateblock is released (we don't reference count while a
stateblock is recording, so recorded stateblocks have no references to
clean up).
the interface but it is more correct way (Microsoft even have a
resource type of volume).
- Moved usage, format, allocatedMemory and size onto the resource
class structure.
- Refactored Preload for classes that inherit BaseTexture, preload now
binds the texture instead of bind texture calling preload, bindTexture
allocated a glTexture if there isn't one.
- Added two new class static members BaseTexture_CleanUp and
Resource_CleanUp that should be called by classes that implement
BaseTexture or Resource.
- Only prototype the interfaces which are subclassed (I overdid it
last time!).
- Implement Get/Set Texture and GetBackBuffer, plus device's
GetDisplayMode / GetDeviceCaps.
- Make some of the d3d9 skeleton code issue fixme's to highlight code
which hasn't been migrated yet.
- Correct the d3d9 headers for D3DSURFACE_DESC which caused stack
corruption in demos.
Jason Green