This prevents the target from changing during the first PreLoad() call
on a surface, which would be inconvenient when attaching a surface to
a FBO for example.
This creates a function for setting the texture name and one for
setting the texture target. The idea is that the texture target should
get set right after the surface is created, and won't change, while
generating a texture name can wait.
ATI cards prior to the radeon HD series did not have unconditional non
power of two support. So far we've used texture_rectangle for that, or
created a bigger power of two texture with padding. This had the
disadvantage that we had to correct the coordinates, which causes
extreme problems with shaders(doesn't work, pretty much).
Both the MacOS and the fglrx driver have support for
GL_ARB_texture_non_power_of_two, and run it on the hardware as long as
we stay within the texture_rectangle limitations. This allows us to
have conditional non power of two textures with normalized
coordinates. This patch adds an internal extension, and the code
creates a regular GL_TEXTURE_2D texture with NP2 size, but refuses
mipmapping, filtering and texture_rectangle incompatible
operations. This makes np2 textures work with shaders on fglrx and
macos.
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.
glDesciption member.
Removed Level and Target from LoadTexture, and reduced the dependency
on surface->device.
Fixed a couple of compiler warnings in d3d9.
the first time around.
Replace some calls to cubetexture in basetexture to calls to
basetexture.
Check that the level isn't out of bounds in calls to texture.
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.
Alexandre Julliard