Age | Commit message (Collapse) | Author |
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It is possible for ctx->DrawBuffer to be NULL, so don't fault when
that happens. This change is not being committed to master because it
doesn't appear to be necessary there.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cherry picked from mesa_7_4_branch, commit 49e0c74ddd91900fc4effb6d305d56e0563b456d
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Hook up a constant buffer, binding table, etc for the VS unit.
This will allow using large constant buffers with vertex shaders.
The new code is disabled at this time (use_const_buffer=FALSE).
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We don't update drawables anymore unless they are completely
uninitialized, so we need to swap even if we don't have
cliprects yet, otherwise we never end up calling the driver's
SwapBuffers(). The driver should update the drawable in its
SwapBuffers() anyway.
See 8e753d04045a82062ac34d3b2622eb9dba8af374,
"dri glx: Fix dri_util::driBindContext" for the change that
exposed it.
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Fixes segfaults when rendering to front buffer.
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Plus, begin the new code for vertex shader const buffers.
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Used to map drawables, textures and constant buffers to surface binding
table indexes.
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Handle the loader returning a fake front-buffer. Since the driver
never specifically requests a fake front-buffer, the driver assumes
that it will never receive both a fake and a real front-buffer.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@redhat.com>
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Track two flags: whether or not front-buffer rendering is currently
enabled and whether or not front-buffer rendering has been enabled
since the last glFlush. If the second flag is set, the front-buffer
is flushed via a loader call back. If the first flag is cleared, the
second flag is cleared at this time.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@redhat.com>
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Fixes mem leak observed with texcombine test.
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This fixes the random results that were seen when fetching a constant
inside an IF/ELSE clause. Disabling the execution mask ensures that all
the components of the register are written.
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Before, the instruction's CondUpdate field was mistakenly effecting the
constant-fetch operation.
Fixes progs/glsl/bump.c demo. But there are some other issues related
to condition flags and IF/ELSE that need investigation...
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This gets us the savings for driver-internal viewport calls that
dd1c68f15123a889a3ce9d2afe724e272d163e32 was attempting, without relying
on Xlib internals or clients handling X events.
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This speeds up OA on my GM45 by 21% (more than the original CPU cost of
the upload path). We might still be able to squeeze a few more percent out
by avoiding repeatedly mapping/unmapping buffers as we upload elements into
them.
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Otherwise current xserver / libGL no longer expose a 32 bit RGBA GLX visual,
and compiz fails.
Fixes http://bugs.freedesktop.org/show_bug.cgi?id=20479 .
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EyeDirection -> SpotDirection
_NormDirection -> _NormSpotDirection
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Everything is in place now for using a true constant buffer for GLSL fragment
shaders. Still some bugs to find though.
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We were accidentally clobbering the next register.
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Currently, shader constants are stored in the GRF (loaded from the CURBE
prior to shader execution). This severly limits the number of constants
and temps that we can support.
This new code will support (practically) unlimited size constant buffers
and free up registers in the GRF. We allocate a new buffer object for the
constants and read them with "Read" messages/instructions. When only a
small number of constants are used, we can still use the old method.
The code works for fragment shaders only (and is actually disabled) for now.
Need to do the same thing for vertex shaders and need to add the necessary
code-gen to fetch the constants which are referenced by the shader
instructions.
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This code won't actually be used and will be removed in a subsequent commit.
Just committing for posterity.
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Fixes regression seen with progs/glsl/bump.c
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Used to read float[4] vectors from the constant buffer/surface.
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Call the get_src_reg_imm() function when it's permissible to generate a
literal value src register.
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The value was always 1.
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