It's been on the list to add dual source blending support to avoid the
two pass componentAlpha code. Radeon has done this for a while in
EXA, so let's add support to bring glamor up to using it.
This adds dual blend to both render and composite glyphs paths.
Initial results show close to doubling of speed of x11perf -rgb10text.
v2: Fix breakage of all of CA acceleration for systems without
GL_ARB_blend_func_extended. Add CA support for all the ops we
support in non-CA mode when blend_func_extended is present. Clean
up some comments and formatting. (changes by anholt)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
New composite glyphs code uses the updated glamor program
infrastructure to create efficient shaders for drawing render text.
Glyphs are cached in two atlases (one 8-bit, one 32-bit) in a simple
linear fashion. When the atlas fills, it is discarded and a new one
constructed.
v2: Eric Anholt changed the non-GLSL 130 path to use quads instead of
two triangles for a significant performance improvement on hardware
with quads. Someone can fix the GLES quads emulation if they want to
make it faster there.
v3: Eric found more dead code to delete
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This extends the existing API to support options needed for render
accleration, including an additional fragment, 'combine', (which
provides a place to perform the source IN mask operation before the
final OP dest state) and an additional 'defines' parameter which
provides a way to add target-dependent values without using a uniform.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Pass the inverse of the texture size to glamor vertex shaders so that
we multiply by that instead of dividing by the size as multiplication
is generally faster than division.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This makes sure the pixelization for dashed lines matches non-dashed
lines, while also speeding them up.
v2: Switch to glamor_make_current
v3: Create dash pattern pixmap without GLAMOR_CREATE_FBO_NO_FBO
v4: Adopt suggestions from Eric's review:
- Drops power-of-two alignment of our line vertex data, simplifying
the code.
- Stops reading from the VBO. While on keithp's and my machines the
VBO is mapped cached, on many implementations it will be mapped WC,
making those reads extremely expensive.
- Style fixes (line wrapping, spaces around operators).
v5: Adopt suggestions from Markus' review:
- Use max when computing zero-width dashed line length.
Don't open code max here.
- Embed CoordModePrevious into VBO writing for dashed lines
Instead of pre-computing the coord mode previous results, just
embed this in the loop which fills the vertex buffer. Saves
re-writing the request buffer, and shortens the code a bit
v6: Export glamor_destroy_gc for UXA
UXA needs to call glamor_destroy_gc from its GCFuncs, so export
it.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Paints with textures, using a temporary buffer for overlapping copies
Performs CPU to GPU transfers for pixmaps in memory. Accelerates copy
plane when both objects are in the GPU. Includes copy_window
acceleration too.
v2: Use NV_texture_barrier for non-overlapping copies within the same
drawable
v3: Switch to glamor_make_current
v4: Do overlap check on the bounding box of the region rather than
on individual boxes
v5: Use Eric Anholt's re-written comments which provide a more accurate
description of the code
v6: Use floating point uniform for copy plane bit multiplier. This
avoids an int to float conversion in the copy plane fragment shader.
Use round() instead of adding 0.5 in copy plane. round() and +0.5
end up generating equivalent code, and performance measurements
confirm that they are the same speed. Round() is a bit clearer
though, so we'll use it.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus@selfnet.de>
This just adds a bunch of support code to construct shaders from
'facets', which bundle attributes needed for each layer of the
rendering system. At this point, that includes only the primitive and
the fill stuff.
v2: Correct comment in glamor transform about 1/2 pixel correction needed
for GL_POINT. (Eric Anholt)
v3: Rebase on Markus's cleanups (change by anholt)
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Dave Airlie
Keith Packard