[Bug 15644] Morrowind: Waterplane/sprite flickering with ORM=fbo

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=15644





--- Comment #13 from Tobias Jakobi <liquid.acid at gmx.net>  2008-10-18 09:32:11 ---
Created an attachment (id=16719)
 --> (http://bugs.winehq.org/attachment.cgi?id=16719)
[wined3d] use correct texture target in depth_blt

Hi there,

this patch fixes the GL errors mentioned in this bugreport. It does NOT fix the
flickering/disappearing issue.

It's (the patch) currently not going into wine because the issue lies much
deeper.

For the GLSL path create_glsl_blt_shader() is flawed, because it assumes a 2D
target (so it uses sample2D, texture2D, and so on) which is not always the
case.

The attached patch currently handles normal 2d, cubemap and rect targets.
According to Henri Verbeet the other targes (1d and 3d) don't appear in
combination with depthstencil stuff.

So code must also be fixed in create_glsl_blt_shader (probably creating two
more functions which handle cubemaps and rects). The same would have to be done
for the ARB shader path.

Introduces more problems:
- Selection of the correct face for cubemap textures
- Non-normalized texcoords for rect textures (problem when generating texcoords
in vertex shader)

Note: The information from above is a summary of what Henri told me on IRC :)

Greets,
Tobias


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