Commit Graph

132 Commits

Author SHA1 Message Date
Keith Packard
15e4d14dfa glamor: Replace fallback preparation code
These offer a simpler and more efficient means for temporarily
transitioning to CPU-accessible memory for fallback implementations.

v2: Do not attempt fallbacks with GLAMOR_DRM_ONLY pixmaps

    glamor cannot transfer pixels for GLAMOR_DRM_ONLY pixmaps using
    glReadPixels and glTexSubImage2D, and so there's no way to perform
    fallback operations with these pixmaps.

v3: Clear ->pbo field when deleting the PBO.  Otherwise, we'd reuse
    the old name next time we fall back on the pixmap, which would
    potentially conflict with some other pixmap that genned a new
    name, or just do a lazy allocation of the name (compat GL context,
    like we currently use) or error out (core GL context, like we hope
    to use some day).  Also, style fixes.  Changes by anholt, acked by
    keithp.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-06-15 22:02:40 +01:00
Zhigang Gong
a4d96afdbd glamor: Fallback to system memory when fail to allocate one big fbo.
Even when create a pixmap which smaller than the max_fbo_size,
it may fail due to some low level driver limitation. If that is
the case, we don't need to crash the xserver. We just need to
fallback to system memory.

See the related bug at:
https://bugs.freedesktop.org/show_bug.cgi?id=71190

Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Tested-by: Kai Wasserbach <kai@dev.carbon-project.org>
Tested-by: Erich Seifert <eseifert@error-reports.org>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2014-04-23 10:41:19 -07:00
Keith Packard
5062b4fadd glamor: Add glamor_transfer based glamor_get_image and glamor_put_image
These use the upload_boxes and download_boxes helpers to provide
reasonably efficient image transfer.

Fixes segfaults in Xephyr with x11perf -reps 1.

Performance improvements:

Improves -putimage10 by 548.218% +/- 88.601% (n=10).
Improves -putimage500 by 3.71014% +/- 1.5049% (n=10).
Improves -getimage10 by 8.37004% +/- 4.58274% (n=10).
No statistically significant difference on -getimage500 (n=10).

v2: Fix rebase failures, don't forget to check/prepare the gc in
    putimage fallbacks (changes 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>
2014-04-23 10:36:18 -07:00
Eric Anholt
fab0a4a4c9 glamor: Replace glamor_get/put_context() with just glamor_make_current().
Now that we have the DIX global state for the current context, we
don't need to track nesting to try to reduce MakeCurrent overhead.

v2: Fix a mistaken replacement of a put_context with make_current in
    glamor_fill_spans_gl() (caught by keithp).

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> (v1)
Reviewed-by: Adam Jackson <ajax@redhat.com> (v1)
2014-04-23 10:32:23 -07:00
Keith Packard
b4d0bec22c Merge remote-tracking branch 'krh/xwayland-for-keithp' 2014-04-03 15:35:01 -07:00
Keith Packard
3c34dd3603 glamor: Add glamor_program based poly_text and image_text
Accelerates text painting with GPU-based geometry computation and stippling

v2: Simplify get_glyphs, expand single character variable names to
    more descriptive ones. (Markus Wick)
v3: Rebase against the glamor_prepare_* un-renaming (changes by anholt).

Improves x11perf -f8text by 417.908% +/- 11.0144% (n=10)

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-04-03 13:07:52 -07:00
Keith Packard
5b76b3978d glamor: Compute supported GLSL version and save in screen private
This currently computes the GLSL version in a fairly naïve fashion,
and leaves that in the screen private for other users. This will let
us update the version computation in one place later on.

v2: Drop an accidental rebase-squashed hunk (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>
2014-04-03 13:07:51 -07:00
Keith Packard
6aac97198f glamor: Initialize XV shaders from glamor_xv_init instead of glamor_init
The glamor_init calls to glamor_init_xv_shader were never getting run
because GLAMOR_XV was never defined. Instead of trying to make that
work, fix glamor_xv_init to make the call instead.

Further, just get rid of the glamor_fini_xv_shader function entirely
as the shader program will be destroyed when the context is destroyed
at server reset time.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-04-03 13:07:51 -07:00
Keith Packard
1707faf36d glamor: SetWindowPixmap is not related to RENDER
Move the configuration of screen->SetWindowPixmap out from under it.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-04-03 13:07:51 -07:00
Kristian Høgsberg
d148034375 glamor: Add new GLAMOR_CREATE_PIXMAP_NO_TEXTURE pixmap create flag
This flag lets a DDX allocate a glamor pixmap without allocating the
texture that backs it.  The DDX can then allocate the texture itself
and then set it later.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-04-01 10:31:09 -07:00
Keith Packard
209d004469 glamor: Add bounding box to one-fbo pixmaps
This lets code treat the one-fbo pixmaps more symmetrically with the
tiled pixmaps.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
2014-03-26 12:58:40 -07:00
Keith Packard
82f91433e2 glamor: Get testing code using small FBOs working again
Glamor has a mode where pixmaps will be constructed from numerous
small FBOs. This allows testing of the tiled pixmap code without
needing to create huge pixmaps.

However, the render glyph code assumed that it could create a pixmap
large enough for the glyph atlas. Instead of attempting to fix that
(which would be disruptive and not helpful), I've added a new pixmap
creation usage, GLAMOR_CREATE_NO_LARGE which forces allocation of a
single large FBO.

Now that we have pixmaps with varying FBO sizes, I then went around
and fixed the few places using the global FBO max size and replaced
that with the per-pixmap FBO tiling sizes, which were already present
in each large pixmap.

Xephyr has been changed to pass GLAMOR_CREATE_NO_LARGE when it creates
the screen pixmap as it doesn't want to deal with tiling either.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-03-26 12:58:40 -07:00
Markus Wick
82168b1e6e glamor: Select VBO path by ARB_mbr extension.
The mbr path was hard coded enabled for desktop gl and disabled for
gles.  But there are both desktop without mbr and GLES with mbr.

v2: Don't forget to update the fini path, too (change by anholt)

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-03-26 12:58:40 -07:00
Markus Wick
53df6e8c3b glamor: Update GL requirements to 2.1.
We will never ever run on OpenGL 1.2 as we use shaders everywhere.
2.0 may be enough, but we also often use PBOs and our big shaders
won't fit into the first GLSL limits.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-03-26 12:58:39 -07:00
Markus Wick
15d36444ac glamor: Use epoxy_gl_version() instead of rolling our own.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-03-26 12:58:39 -07:00
Markus Wick
9d87f66e86 glamor: Use epoxy_has_gl_extension() instead of rolling our own.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-03-26 12:58:39 -07:00
Michel Dänzer
6649d0059e glamor: Move up glamor_priv->flags assignment in glamor_init()
It wasn't assigned yet when it was tested for GLAMOR_NO_DRI3.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-03-17 14:43:28 -07:00
Eric Anholt
1a4b249939 glamor: Apply debug labels to our shaders.
This will help tools like fips, apitrace, or INTEL_DEBUG=shader_time
provide useful information about the shaders in use.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus@selfnet.de>
2014-03-17 14:30:57 -07:00
Eric Anholt
e23dd41195 glamor: Return the stride/size for glamor_dri3_name_from_pixmap(), too.
Just like for a caller of glamor_dri3_fd_from_pixmap(), otherwise the
consumer of that named buffer has no idea what GL chose for the
stride.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus@selfnet.de>
2014-03-17 14:30:49 -07:00
Eric Anholt
12b2adaaeb glamor: Do glyph private init at screeninit time, and other stuff at CSR.
This hasn't actually been a problem, since the server hasn't allocated
any glyphs before our glyph private initialization during
CreateScreenResources.  But it's generally not X Server style to do
things this way.

Now that glamor itself drives both parts of glyphs setup, DDX drivers
no longer need to tell glamor to initialize glyphs.  We do retain the
old public symbol so they can keep running with no changes.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus@selfnet.de>
2014-03-17 14:30:45 -07:00
Eric Anholt
2843a2f9b5 glamor: Use buffer_storage
v2:
  - Make the default buffer size a #define. (by Markus Wick)
  - Fix the return offset for mapping with buffer_storage.  (oops!)
v3:
  - Avoid GL error at first rendering from unmapping no buffer.
  - Rebase on the glBindBuffer(GL_ARRAY_BUFFER, 0) change.
v4: Rebase on Markus's vbo init changes.
v5: Fix missing put_context() in the buffer_storage fallback path.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus at selfnet.de>
2014-03-10 13:57:21 -07:00
Eric Anholt
d310d566b1 glamor: Extract the streamed vertex data code used by Render.
We should be uploading any vertex data using this kind of upload
style, since it saves a bunch of extra copies of our vertex data.

v2:
  - Add a simple comment about what the function does.
  - Use get_vbo_space()'s return in trapezoids, instead of dereffing
    glamor_priv->vb (by Markus Wick).
  - Fix the double-unmapping by moving put_vbo_space() outside of
    flush_composite_rects().
  - Remove the rest of the composite_vbo_offset usage, and just always
    use get_vbo_space()'s return value.
v3:
  - Fix failure to put_vbo_space in traps when no prims were
    generated.
  - Unbind the VBO from put_vbo_space().  Keeps callers from
    forgetting to do so.
v4:
  - Split out some changes into the previous 3 commits while trying to
    track down a regression.
  - Fix regression due to rebase fail where glamor_priv->vbo_offset
    wasn't incremented.
v5:
  - Fix GLES2 VBO sizing.
  - Add a comment about resize behavior.
  - Move glamor_vbo.c init code to glamor_vbo.c from
    glamor_render.c. (Derived from Markus's changes, but the GLES2 fix
    dropped almost all of the code in the functions).
v6:
  - Drop the initial BufferData on GLES2 (it happens at put() time).
  - Don't forget to set vbo_offset to the size on GLES2.
  - Use char * instead of void * in the cast to return the vbo_offset.
  - Resize the default FBO to 512kb, to be similar to previous
    behavior.  +1.66124% +/- 0.284223% (n=679) on aa10text.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus at selfnet.de>
2014-03-10 13:57:21 -07:00
Eric Anholt
bd09292deb glamor: Add a note about the state of GL_ARB_map_buffer_range.
GLES2 Xephyr is failing due to lack of glMapBuffer() with the read
bits set, and I decided to see if we can just switch everything to
glMapBufferRange().  I'm undecided, and it largely depends on whether
we find people are interested in using glamor for the windows X server.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus at selfnet.de>
2014-03-10 11:06:27 -07:00
Eric Anholt
fb4a1e6ef6 glamor: Rename the DRI-related pixmap functions.
There was confusion over whether they should have egl in the name, and
they had DRI3 in the name even though they're useful to have without
DRI3.

v2: Just rename glamor_name_from_pixmap for now -- I'd accidentally
    conflict-resolved in adding new parameters from a later commit.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-03-05 13:10:22 -08:00
Eric Anholt
9fe052d90c xephyr: Build support for rendering with glamor using a -glamor option.
v2: Avoid making the Ximage for the screen that we'll never use, and
    drive the screen pixmap creation for glamor ourselves.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com> (v1)
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-03-05 13:10:12 -08:00
Eric Anholt
d63283860a glamor: Pass pixmaps around to unifdef glamor_iformat_for_depth().
v2: Just pass in the PicturePtr to glamor_pict_format_is_compatible()
    (suggestion by keithp)

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-02-14 18:30:01 -08:00
Eric Anholt
9553020b71 glamor: Drop a bunch of GLES2 ifdefs.
Now that we're using epoxy, we can write code using both desktop and
ES symbols and decide what to use at runtime.

v2: Fix a spelling mistake (latter), since the lines were moved
    anyway (noticed by Rémi Cardona).  Fix condition invert in
    glamor_set_composite_texture (caught by Michel Dänzer).

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com> (v1)
Reviewed-by: Adam Jackson <ajax@redhat.com> (v1)
2014-02-14 18:30:01 -08:00
Eric Anholt
c3c8a5f360 glamor: yInverted is a boolean value, so use the Bool type.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-02-14 18:30:01 -08:00
Eric Anholt
4afe15d8bf glamor: Put in a pluggable context switcher for GLX versus EGL.
The GLX side just gets the context from the current state.  That's
also something I want to do for EGL, so that the making a context is
separate from initializing glamor, but I think I need the modesetting
driver in the server before I think about hacking on that more.

The previous code was rather incestuous, along with pulling in xf86
dependencies to our dix code.  The new code just initializes itself
from the current state.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-02-14 18:30:01 -08:00
Eric Anholt
781c692cf9 glamor: Rename glamor_get/put_dispatch to glamor_get/put_context.
It used to be the thing that returned your dispatch table and happeend
to set up the context, but now it just sets up the context.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-02-14 18:29:56 -08:00
Eric Anholt
0373b3f4f7 glamor: Convert to using libepoxy.
Libepoxy hides all the GL versus GLES2 dispatch handling for us, with
higher performance.

v2: Squash in the later patch to drop the later of two repeated
    glamor_get_dispatch()es instead (caught by keithp)

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-02-14 18:28:56 -08:00
Eric Anholt
d26f533515 glamor: Hook the module back up to the build.
For now we're just building an uninstalled library.  The extra EGL
stubs are required so that we can get the DIX building and usable
without pulling in the xf86 DDX code in glamor_egl.c.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-01-27 09:30:47 -08:00
Eric Anholt
0c5a7c2086 glamor: Remove compat code for building out of tree.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-01-27 09:30:47 -08:00
Eric Anholt
7f6e865359 glamor: Fix some indent damage of putting a ' ' after the '*' for pointers.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-01-27 09:30:47 -08:00
Eric Anholt
d84d71029a glamor: Apply x-indent.sh.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-01-27 09:30:47 -08:00
Axel Davy
7cfd9cc232 Add DRI3 support to glamor
This implements some DRI3 helpers to help the DDXs using
glamor to support DRI3.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:54 -08:00
Maarten Lankhorst
842cd7eb43 fixup picture in SetWindowPixmap
When creating a window with recordmydesktop running, the following may happen:

create picture 0x1cd457e0, with drawable 0x1327d1f0
(SetWindowPixmap is called)
destroy picture 0x1cd457e0, with drawable 0x1cd65820

Obtaining format for pixmap 0x1327d1f0 and picture 0x1cd457e0
==7989== Invalid read of size 4
==7989==    at 0x8CAA0CA: glamor_get_tex_format_type_from_pixmap (glamor_utils.h:1252)
==7989==    by 0x8CAD1B7: glamor_download_sub_pixmap_to_cpu (glamor_pixmap.c:1074)
==7989==    by 0x8CA8BB7: _glamor_get_image (glamor_getimage.c:66)
==7989==    by 0x8CA8D2F: glamor_get_image (glamor_getimage.c:92)
==7989==    by 0x29AEF2: miSpriteGetImage (misprite.c:413)
==7989==    by 0x1E7674: compGetImage (compinit.c:148)
==7989==    by 0x1F5E5B: ProcShmGetImage (shm.c:684)
==7989==    by 0x1F686F: ProcShmDispatch (shm.c:1121)
==7989==    by 0x15D00D: Dispatch (dispatch.c:432)
==7989==    by 0x14C569: main (main.c:298)
==7989==  Address 0x1cd457f0 is 16 bytes inside a block of size 120 free'd
==7989==    at 0x4C2B60C: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==7989==    by 0x228897: FreePicture (picture.c:1477)
==7989==    by 0x228B23: PictureDestroyWindow (picture.c:73)
==7989==    by 0x234C19: damageDestroyWindow (damage.c:1646)
==7989==    by 0x1E92C0: compDestroyWindow (compwindow.c:590)
==7989==    by 0x20FF85: DbeDestroyWindow (dbe.c:1389)
==7989==    by 0x185D46: FreeWindowResources (window.c:907)
==7989==    by 0x1889A7: DeleteWindow (window.c:975)
==7989==    by 0x17EBF1: doFreeResource (resource.c:873)
==7989==    by 0x17FC1B: FreeClientResources (resource.c:1139)
==7989==    by 0x15C4DE: CloseDownClient (dispatch.c:3402)
==7989==    by 0x2AB843: CheckConnections (connection.c:1008)
==7989==
(II) fail to get matched format for dfdfdfdf

The fix is to update the picture pointer when the window pixmap is changed,
so it moves the picture around with the window rather than the pixmap.

This makes FreePicture work correctly.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71088
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:54 -08:00
Dave Airlie
e3d1d4e3ca glamor: add initial Xv support
This does YV12 and I420 for now, not sure if we can do packed without
a GL extension.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2013-12-18 11:23:54 -08:00
Zhigang Gong
bc1b412b3b Synch with xorg 1.13 change.
As xorg 1.13 change the scrn interaces and remove those
global arrays. Some API change cause we can't build. Now
fix it.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:53 -08:00
Zhigang Gong
32a7438bf7 glamor_copyarea: Use blitcopy if current state is not render.
Practically, for pure 2D blit, the blit copy is much faster
than textured copy. For the x11perf copywinwin100, it's about
3x faster. But if we have heavy rendering/compositing, then use
textured copy will get much better (>30%)performance for most
of the cases.

So we simply add a data element to track current state. For
rendering state we use textured copy, otherwise, we use blit
copy.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:53 -08:00
Zhigang Gong
4d1a2173f2 glamor_compositerects: Implement optimized version.
Don't call miCompositeRects. Use glamor_composite_clipped_region
to render those boxes at once.
Also add a new function glamor_solid_boxes to fill boxes at once.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:52 -08:00
Zhigang Gong
d5f03ba010 create_pixmap: use texture for large glyphs.
As we only cache glyphs smaller than 64x64, we need to use
texutre for the large glyphs.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:52 -08:00
Zhigang Gong
b8dd2a597d glamor_glyphs: Slightly performance tuning.
As glamor_glyphs never fallback, we don't need to keep the
underlying glyphs routines, just override the ps->glys

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:52 -08:00
Zhigang Gong
7acbe89561 glamor_create_pixmap: Allocate glyphs pixmap in memory.
As we have glyphs atlas cache, we don't need to hold each
glyphs on GPU. And for the subsequent optimization, we need
to store the original glyphs pixmap on system memory.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:52 -08:00
RobinHe
bd180be619 Use shader to generate the temp trapezoid mask
The old manner of trapezoid render uses pixman to
 generate a mask pixmap and upload it to the GPU.
 This effect the performance. We now use shader to
 generate the temp trapezoid mask to avoid the
 uploading of this pixmap.
 We implement a anti-alias manner in the shader
 according to pixman, which will caculate the area
 inside the trapezoid dividing total area for every
 pixel and assign it to the alpha value of that pixel.
 The pixman use a int-to-fix manner to approximate but
 the shader use float, so the result may have some
 difference.
 Because the array in the shader has optimization problem,
 we need to emit the vertex of every trapezoid every
 time, which will effect the performance a lot. Need to
 improve it.

Signed-off-by: Junyan He <junyan.he@linux.intel.com>
2013-12-18 11:23:52 -08:00
Zhigang Gong
e96ea02010 largepixmap: Implement infrastructure for large pixmap.
Added infrastructure for largepixmap, this commit implemented:
1. Create/Destroy large pixmap.
2. Upload/Download large pixmap.
3. Implement basic repeat normal support.
3. tile/fill/copyarea large pixmap get supported.

The most complicated part glamor_composite still not implemented.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:51 -08:00
Zhigang Gong
ace35e408c glamor_largepixmap: first commit for large pixmap.
This is the first commit to add support for large pixmap.
The large here means a pixmap is larger than the texutre's
size limitation thus can't fit into one single texutre.

The previous implementation will simply fallback to use a
in memory pixmap to contain the large pixmap which is
very slow in practice.

The basic idea here is to use an array of texture to hold
the large pixmap. And when we need to get a specific area
of the pixmap, we just need to compute/clip the correct
region and find the corresponding fbo.

We need to implement some auxiliary routines to clip every
rendering operations into small pieces which can fit into
one texture.

The complex part is the transformation/repeat/repeatReflect
and repeat pad and their comination. We will support all of
them step by step.

This commit just add some necessary data structure to represent
the large pixmap, and doesn't change any rendering process.
This commit doesn't add real large pixmap support.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:51 -08:00
Zhigang Gong
c5b3c2cedc Added strict warning flags to CFLAGS.
We miss the strict warning flags for a long time, now add it back.
This commit also fixed most of the warnings after enable the strict
flags.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:51 -08:00
Zhigang Gong
6839996b0b We should not call gradient finalization code if we disable it.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:51 -08:00
Zhigang Gong
1035fc72b9 Fixed all unused variables warnings.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
2013-12-18 11:23:51 -08:00