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See comments for details.
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The existing implementation was already implemented on software, but relied
on the pipe driver to always support the R16G16B16A16_SNORM format. This
patch eliminates that, without prejudice against a future hardware-only
implementation.
It also avoids some of the short <-> float conversions, and only does a read
transfer of the color buffer on GL_RETURN if absolutely necessary.
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In st_bufferobj_map_range(), set obj->Offset consistently with its
usage elsewhere.
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Return TRUE in this case. Returning FALSE seems to result in
mis-rendering -- possibly opengl32.dll is trying to compensate by
doing a software blit??
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(cherry picked from master, commit ef8caec29ae73bb2bbeb48f0578d839ef29348cd)
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Fix mklib to deal with NOPREFIX and use --enable-auto-image-base for cygwin
Teach configure.ac some basic facts about cygwin
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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(cherry picked from master, commit 19a54d9f1055c366fd77026dd67007a8d5921f58)
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It's legal for ARB_vertex_program programs to not write to result.position.
The results are undefined in that case. This assertion was causing us to
abort/exit though.
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The recent increase ST_MAX_SHADER_TOKENS to 8K causes stack overflows on
windows.
Failure to allocate is not being propagated to the caller. This is not
a regression since the previous _mesa_malloc result wasn't being
checked as well. Unfortunately it is not easy to fix, as the callers of
these functions do not have failure propagation mechanism either, and
so on. So leaving a just fixme note for now.
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Also, MAX_NV_VERTEX_PROGRAM_PARAMS should be 96, not 128 (or 256).
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We were adding references to the input arrays, but failing to drop
them on destruction. This could lead to a 64kb buffer being leaked
each context destruction.
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1) Pass the correct format when calling update_array in
_mesa_VertexAttribPointerARB.
2) glVertexAttribPointerNV accepts GL_BGRA format too.
3) raise INVALID_VALUE error when format is BGRA and normalized is
false in glVertexAttribPointerARB
(cherry picked from commit 4adb190a162c5ed0684a8616331344caadba4010)
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This reverts commit fc7f92478286041a018ac4e72d2ccedeea7c0eca.
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Now that the dlopen wrappers are built into libmesa.a, we need to link
standalone libOSMesa with libdl to resolve dlopen and friends on
platforms that need it.
(cherry picked from commit 4795dd5950d4dcd7c8d421c8fb4851c193297ba1)
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autoconf had been designating the 8 bit libOSMesa as the default
standalone osmesa, but the Makefile expected it to be linked to libGL.
Fix up the osmesa Makefile so that it allows any of the combinations of
standalone and channel width to be built.
Fixes bug #21980.
(cherry picked from commit 7441dcd90b01df8351026af8bbb50e11bb86071a)
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Because of flat shading, we can't use same code as PIPE_PRIM_TRIANGLE_FAN.
This is a follow-on to commit a59575d8fbe8b0ca053cc8366ce7a42bc660158a.
(cherry picked from commit 086ecea179ed572c89aa77c5f465671a5cef87a7)
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This fixes incorrect front/back-face orientation.
(cherry picked from commit a64bbdaa3e0b036a880d6db65ceb4a66205062f1)
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MSVC 64bit compiler takes forever on some of the files.
Might want to revisit this again later.
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You can still get the old behavior by passing the option quiet=no to scons.
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When approaching y = x * 0xffffffff / 0xffffff with bit arithmetic, the
8 least significant bits of y should come from the
8 most significant bits of x.
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This prevents the width / height from being clipped to the window size before
the texture is allocated. This matches intelCopyTexImage1D.
This should fix bug #21227
Signed-off-by: Ian Romanick <ian.romanick@intel.com>
(cherry picked from commit 129f311673c99eb912d659023e50bc5f0ef53249)
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The pstipple, aaline and aapoint code would create specialized versions
of shaders and upload them to the driver -- but never free them.
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The AA line and point code also needs to free token arrays after
building driver shaders.
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Add missing FREE() after MALLOC().
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Need a flush here even though the original finish was overkill.
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Also add key to set up quake-1 style ztrick rendering with clear depth
1.0, deptrange(1.0, 0.0) and depthfunc GL_GREATER.
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Need to take the draw buffer's up/down orientation into consideration
when setting the sprite_coord_mode field.
Fixes inverted sprites when drawing into an FBO.
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Fixes a crash when clearing the window with a quad after drawing large
points. We were asking the draw module how many vertex shader outputs
there were and got 3 instead of 2. This led to creating vertices with
too many attributes and trying to read invalid memory.
We reset extra_vp_outputs.slot to zero in the aaline/aapoint stage's
flush functions already.
This omission was just an oversight in the wide_point stage.
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