mesa: return early if mask is cleared to zero in BlitFramebuffer
From ARB_framebuffer_object:
If a buffer is specified in <mask> and does not exist in both the
read and draw framebuffers, the corresponding bit is silently
ignored.
Using GL_NONE as DataType of Z32_FLOAT_X24S8, not sure what I should put there.
The spec says the type is n/a.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
intel: Recognize all depth formats in get_teximage_readbuffer.
The existing code was missing GL_DEPTH_COMPONENT32, resulting in it
wrongly returning the color buffer instead of the depth buffer.
Fixes an issue in PlaneShift 0.5.7 when casting spells. The game calls
CopyTexSubImage2D on buffers with a GL_DEPTH_COMPONENT32 internal
format, which (prior to this patch) resulted in an attempt to copy
ARGB8888 to X8_Z24.
Instead of adding the missing enumeration directly, convert the code to
use _mesa_is_depth_format() and _mesa_is_depthstencil_format() as these
should catch any newly added depth formats in the future.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
i965/gen4: Fix GPU hangs since the program streaming change.
This was tricky. We were doing a use-before-initialize of
grf_reg_count, but the value usually got overwritten anyway -- when we
didn't have to do a relocation (typical), or on gen5 when we didn't
have relocations at all.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38771
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
i965/gen7: Remove gratuitous dirty flags from WM and PS state.
Commit b46dc45cee claimed that
NEW_POLYGONSTIPPLE is gratuitous, but somehow just changed comments
and whitespace instead of actually removing the flag.
While we're at it, 3DSTATE_PS doesn't appear to need NEW_LINE or
NEW_POLYGON either (those are in 3DSTATE_WM). Also, 3DSTATE_WM
doesn't appear to need BRW_NEW_NR_WM_SURFACES or BRW_NEW_CURBE_OFFSETS
either (those are in 3DSTATE_PS).
NOTE: This is a candidate for the 7.11 branch.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
When switching channels with xine it sometimes happens that xine
destroys the drawable before we get a chance to call
DRI2DestroyDrawable, resulting in an x error.
r600g: introduce r600_bc_src_toggle_neg helper and fix SUB & LRP
SUB & LRP instructions should toggle NEG bit instead of setting it,
otherwise e.g. "SUB a,b,-1" is translated as "ADD a,b,-1"
Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
For 0^0 case result of "LOG_CLAMPED ...,0" is -MAX_FLOAT, and then result of
"MUL_LIT ...,0,-MAX_FLOAT,..." is -MAX_FLOAT instead of 0 because of special
src1 checks for -MAX_FLOAT. So swap src0/1:
"MUL_LIT ...,-MAX_FLOAT,0,..." to get expected 0, then result of
"EXP_IEEE ...,0" is 1 as expected for LIT.
Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
Create a new GLX drawable struct to track client related info, and add a
wrap counter to it drawable and track it as we receive events. This
allows us to support the full 64 bits of the event structure we pass to
the client even though the server only gives us a 32 bit count.
Reviewed-by: Michel Dänzer <michel@daenzer.net>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Use the new swap event type so we get valid SBC values.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
glsl: Lower break instructions when necessary at the end of a loop.
Normally lower_jumps.cpp doesn't need to lower a break instruction
that occurs at the end of a loop, because all back-ends can produce
proper GPU instructions for a break instruction in this "canonical"
location. However, if other break instructions within the loop are
already being lowered, then a break instruction at the end of the loop
needs to be lowered too, since after the optimization is complete a
new conditional break will be inserted at the end of the loop.
Without this patch, lower_jumps.cpp may require multiple passes in
order to lower all jumps. This results in sub-optimal output because
lower_jumps.cpp produces a brand new set of temporary variables each
time it is run, and the redundant temporary variables are not
guaranteed to be eliminated by later optimization passes.
Fixes unit test test_lower_breaks_6.
glsl: In lower_jumps.cpp, lower both branches of a conditional.
Previously, lower_jumps.cpp would break out of its loop after lowering
a jump instruction in just the then- or else-branch of a conditional,
and it would fail to lower a jump instruction occurring in the other
branch.
Without this patch, lower_jumps.cpp may require multiple passes in
order to lower all jumps. This results in sub-optimal output because
lower_jumps.cpp produces a brand new set of temporary variables each
time it is run, and the redundant temporary variables are not
guaranteed to be eliminated by later optimization passes.
Fixes unit test test_lower_returns_4.
The visitor class in lower_jumps.cpp never removes or replaces the
instruction being visited, but it frequently alters or removes the
instructions that follow it. Therefore, to make sure the altered IR
is visited, it needs to iterate through exec_lists using foreach_list
rather than visit_exec_list().
Without this patch, lower_jumps.cpp may require multiple passes in
order to lower all jumps. This results in sub-optimal output because
lower_jumps.cpp produces a brand new set of temporary variables each
time it is run, and the redundant temporary variables are not
guaranteed to be eliminated by later optimization passes.
Also, certain invariants assumed by lower_jumps.cpp may fail to hold,
causing assertion failures.
Fixes unit tests test_lower_pulled_out_jump,
test_lower_unified_returns, test_lower_guarded_conditional_break,
test_lower_return_non_void_at_end_of_loop, and test_lower_returns_3.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Christian König