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This allows surfaces to be allocated without a rendering context.
A few loose ends to resolve, but in working condition.
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This allows regions to be allocated w/out a rendering context.
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The _rgba versions are temporary until the state tracker is updated.
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This reverts commit 11ce6244a79106c592364b30434b6ddade3fd6bb.
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(for depth texture sampling)
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First step to consolidating surface/texture caching...
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This fixes a DRM BO failure upon swapbuffers caused by the color buffer
still being mapped.
This is a bit heavy handed since we don't always need to unmap buffers
when flushing. Need to pass a flag to flush() or design a new function.
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Also, quite a bit of re-org of the tile caches and surface mapping/unmapping.
Leave surfaces mapped between primitives now.
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Instead of using read/write_quad() functions, do framebuffer accesses via
get/put_tile(). A cache of tiles is used to avoid frequent get/put() calls.
Only implemented for color buffers right now.
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This controls whether texcoords are interpreted as-is or scaled up from [0,1].
Fixes glDrawPixels/glBitmap problems on i915 when image is non power-of-two.
Also, cleans up the CSO sampler state for i915 a bit.
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ignore stencil
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ignored for now
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