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The core reference counting code is centralized in p_refcnt.h.
This has some consequences related to struct pipe_buffer:
* The screen member of struct pipe_buffer must be initialized, or
pipe_buffer_reference() will crash trying to destroy a buffer with reference
count 0. u_simple_screen takes care of this, but I may have missed some of
the drivers not using it.
* Except for rare exceptions deep in winsys code, buffers must always be
allocated via pipe_buffer_create() or via screen->*buffer_create() rather
than via winsys->*buffer_create().
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gnu linker fails to resolve the @n symbols, unless:
- they are listed verbatim in the .def
- they are already linked.
And mingw's .def parser is slightly incompatible with MSVC in respect with
underscores. Will try to work with upstream to fix this, but for now there
is no option other to use seperate .def for mingw.
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move it to pipe/internal/p_winsys_screen.h and start converting
the state trackers to the screen usage
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This commit is mostly just a cosmetic change that cleans-up the interfaces,
replacing pipe_winsys::surface_* calls by
/**
* Allocate storage for a display target surface.
*
* Often surfaces which are meant to be blitted to the front screen (i.e.,
* display targets) must be allocated with special characteristics, memory
* pools, or obtained directly from the windowing system.
*
* This callback is invoked by the pipe_screenwhen creating a texture marked
* with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET flag to get the underlying
* buffer storage.
*/
struct pipe_buffer *(*surface_buffer_create)(struct pipe_winsys *ws,
unsigned width, unsigned height,
enum pipe_format format,
unsigned usage,
unsigned *stride);
Most drivers were updated but not all were tested. Use the softpipe pipe
driver and the xlib winsys changes as a reference when fixing other drivers.
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MS CRT libraries already provide a default DllMain entrypoint, and
MS Linker will complain if it finds the same symbol in two different
libraries. Therefore the DllMain has to be in (each) winsys.
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To build an alternative opengl32.dll with Gallium's software-rasterizer from a
debian-based distribution run:
sudo apt-get install mingw32
scons platform=windows toolchain=crossmingw machine=x86 winsys=gdi dri=no
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We want to use the pipe_buffer_* inlines everywhere, but a pipe context
is not always available nor is it needed.
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Also, rename p_tile.[ch] to u_tile.[ch]
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we now have
src/gallium/winsys/drm/intel/{common,dri,egl}
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