Age | Commit message (Collapse) | Author |
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We were hitting the assertion when we ran out of registers, which can happen.
Also, add some additional assertions and freshen up some comments.
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Only 15 actually worked before since we always reserved generic[0] as an
alias for vertex position.
The case of vertex attribute 0 is tricky. The spec says that there is no
aliasing between generic vertex attributes 0..MAX_VERTEX_ATTRIBS-1 and the
conventional attributes. But it also says that calls to glVertexAttrib(0, v)
are equivalent to glVertex(v). The distinction seems to be in glVertex-mode
versus vertex array mode.
So update the VBO code so that if the shader uses generic[0] but not gl_Vertex,
route the attribute data set with glVertex() to go to shader input generic[0].
No change needed for the glDrawArrays/Elements() path.
This is a potentially risky change so regressions are possible. All the usual
tests seem OK though.
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This info will be used in the linker for allocating generic vertex attribs.
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Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
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Conflicts:
windows/VC8/mesa/osmesa/osmesa.vcproj
windows/VC8/progs/demos/gears.vcproj
windows/VC8/progs/progs.sln
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Conflicts:
src/mesa/shader/slang/slang_compile.c
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Conflicts:
docs/install.html
docs/relnotes-7.3.html
src/mesa/shader/slang/slang_codegen.c
src/mesa/shader/slang/slang_compile.c
src/mesa/shader/slang/slang_emit.c
src/mesa/shader/slang/slang_preprocess.c
src/mesa/shader/slang/slang_preprocess.h
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Don't overload the Size field with the texture target, to avoid confusion.
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Two forms are supported:
Pragmas are silently ignored at this time.
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6333005f7aea3e5d1d86a5c47b3fa2a1ed2f3ff0)
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Fixes regression in progs/demos/convolution.c due to loop unrolling.
This also allows the following to be compiled correctly:
for (int i = 0; i < n; i++) {
int i;
...
}
This fix is a bit of a hack, however. The better fix would be to change
the slang_shader.syn grammar. Will revisit that...
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1-component structs such as "struct foo { float x; }" could get placed at
any position within a register. This caused some trouble computing the
field offset which assumed all struct objects were placed at R.x.
It would be unusual to hit this case in normal shaders.
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These functions need to return the final computed value.
Now expressions such as a = (b += c) work properly.
Also, no need to use __asm intrinsics in these functions. The resulting
code is the same when using ordinary arithmetic operators and is more legible.
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Now the #extension directives can be handled properly.
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gl_FragData[]
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Add a "max complexity" heuristic to allow unrolling long loops with small
bodies and short loops with large bodies.
The loop unroll limits may need further tweaking...
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Loops such as this will be unrolled:
for (i = 0; i < 4; ++i) {
body;
}
where 'body' isn't too large.
This also helps to fix the issue reported in bug #19190. The problem there
is indexing vector types with a variable index. For example:
vec4 v;
v[2] = 1.0; // equivalent to v.z = 1.0
v[i] = 2.0; // variable index into vector!!
Since the for-i loop can be unrolled, we can avoid the problems associated
with variable indexing into a vector (at least in this case).
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(cherry picked from commit 3740a06e28f4cd09e2a3dce2da60320aa9304df1)
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These functions need to return the final computed value.
Now expressions such as a = (b += c) work properly.
Also, no need to use __asm intrinsics in these functions. The resulting
code is the same when using ordinary arithmetic operators and is more legible.
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On Windows snprintf is renamed as _snprintf.
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Now the #extension directives can be handled properly.
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gl_FragData[]
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On Windows snprintf is renamed as _snprintf.
(cherry picked from commit f8f9a1b620d31d1a59855fd502caed325d4a324f)
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