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Create different temporary surfaces for CPU_READ/WRITE when needed (such as
for glReadPixels, glAccum, some glCopy/DrawPixels, glCopyTexSubImage, etc).
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For many envirionments it's necessary to allocate display targets
in a window-system friendly manner. Add facilities so that a driver
can tell if a texture is likely to be used to generate a display surface
and if use special allocation paths if necessary.
Hook up softpipe to call into the winsys->surface_alloc_storage()
routine in this case, though we probably want to change that interface
slightly also.
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This allows us to remove most of the direct references to winsys in the state tracker.
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This fixes the case where the app calls SwapBuffers then calls glReadPixels
to read the front color buffer. We now keep track of when the front buffer
is a _logically_ copy of the back buffer (after SwapBuffers) and read from
the back color buffer instead of the front.
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Also, make sure that field is copied/updated in the program clone and combine functions.
Without this we weren't getting SAMP declarations in the TGSI shaders.
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The cell driver still uses an internal CELL_FLUSH_WAIT flag, in the long run
proper fencing should be implemented for it.
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We always need to do PBO validation, so do that in core Mesa before calling driv
er routine.
cherry-picked from Mesa/master.
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At this time there are no optimizations for directly blitting between
buffer objects and surfaces (always go through mappings).
glean pbo test passes now
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Also, glBitmap now re-uses the vertex buffer to avoid frequent allocations/
deallocations. And, use u_simple_shaders utility code.
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This provides better information about which images in texture object have changed.
Also, call texture_update() from more places previously missed.
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(blit, gen-mipmaps, quad-clear, etc)
Also, additional cso_set_*() functions for viewport, framebuffer, blend color,
etc. state.
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Use the code in cso_context.c rather than st_cache.c.
Basically, binding of state objects now goes through the CSO module.
But Vertex/fragment shaders go through pipe->bind_fs/vs_state() since they're
not cached by the CSO module at this time.
Also, update softpipe driver to handle NULL state objects in various places.
This happens during context destruction. May need to update other drivers...
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Bind all the samplers/textures at once rather than piecemeal.
This is easier for drivers to understand.
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This is a better fix for the previous check-in.
Fixes texadd.c conform test, and probably other bugs.
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If the src buffer's format isn't supported as a texture format, find a different
texture format.
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These functions are now per-screen, not per-context.
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These are now per-screen functions, not per-context.
State tracker updated, code in drivers and p_context.h disabled.
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Calling glTexSubImage() or glTexImage() to replace texture data didn't
reliably cause pipe->set_sampler_texture() to get called so drivers didn't
always get notified of new texture data.
The st_texture_object->pt pointer doesn't always indicate changed data so
added a dirtyData field.
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Update the Makefiles and includes for the new paths.
Note that there hasn't been no separation of the Makefiles yet, and make is
jumping all over the place. That will be taken care shortly. But for now, make
should work. It was tested with linux and linux-dri. Linux-cell and linux-llvm
might require some minor tweaks.
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Fixes gears being upside down on the box in demos/gearbox.
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system of vertices
Also, export st_make_passthrough_vertex_shader() from st_cb_drawpixels.c
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The state tracker will call pipe->get_paramf(PIPE_CAP_BITMAP_TEXCOORD_BIAS)
to get a bias factor for adjusting the texcoords used in bitmap/drawpixels.
This allows us to compensate for small differences in rasterization from
one device to another.
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now.
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The CSO returned by pipe->create_vs_state() can't be passed to the
private draw module. That was causing glRasterPos to blow up.
Add a 'draw_shader' field to st_vertex_program for use with the private
draw module.
Change st_context->state.vs type from cso_vertex_shader to st_vertex_program.
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pipe_get/put_tile_rgba() now use pipe->get/put_tile internally.
Also simplify the <format>_get/put_tile_rgba() helper functions and clean up
some inconsitencies in them.
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It's now the responsibility of surface users to keep track of their mappings.
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