Age | Commit message (Collapse) | Author |
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As for glBitmap, it needs to be an NDC coord in [-1,1].
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When we use the do_blit_bitmap() function, it seems the fragment Z is always
1.0. If depth testing is on, that means that bitmap fragments are often
occluded by other rendering. So, the bitmap doesn't appear even if
rasterpos.Z==0.
The fix is to use the intel_texture_bitmap() path when depth testing is on.
Also, fix the incorrect Z coordinate. It needs to be an NDC value in [-1,1].
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Just call _mesa_append_fog_code() if the fragment program's FogOption is
not GL_NONE.
This allows us to remove some unnecessary i965 fog code.
Note, the arbfplight.c demo can be used to test this (see DO_FRAGMENT_FOG).
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6333005f7aea3e5d1d86a5c47b3fa2a1ed2f3ff0)
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Patch suggested by miod@. Thanks.
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Move the include/GL/xmesa*.h files to src/mesa/drivers/x11/ so they're no
longer considered public.
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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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GL_ATI_separate_stencil is enabled by default for software
rasterizers, but the extension functions weren't hooked up to the
dispatch table.
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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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Everything now depends on either BRW_NEW_FRAGMENT_PROGRAM or
BRW_NEW_VERTEX_PROGRAM.
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There was a note in state.c about _Active deserving to die, and there were
potential issues with it due to i965 forgetting to set _UseTexEnvProgram.
Removing both simplifies things.
Reviewed-by: Brian Paul <brianp@vmware.com>
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If gl_FragData[0] is written but not gl_FragCOlor, use the former.
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Now the #extension directives can be handled properly.
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gl_FragData[]
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Bug #19226.
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On Windows snprintf is renamed as _snprintf.
(cherry picked from commit f8f9a1b620d31d1a59855fd502caed325d4a324f)
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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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(cherry picked from commit d14d494dcda3d80ec2cf452551c680ffb432e306)
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#19390)
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Fixes bug #17234
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This fixes cases such as:
vec4 v4;
vec2 v2;
v4.xz.yx = v2;
The last line now correctly compiles into MOV TEMP[1].xz, TEMP[0].yyxw;
Helps to fix the Humus Domino demo. See bug 19189.
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Also, fix some RNDD vs. RNDZ confusion elsewhere.
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Now only the samplers that are actually used by texture() functions are
saved in the uniform variable list. Before, we could run out of samplers
if too many were declared while only some of them were actually used.
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This lets GLSL shaders use up to 16 samplers.
Fixed function is still limited to 8 textures.
Tested with progs/glsl/samplers.c
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