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path: root/src/gallium/drivers/llvmpipe/lp_state_so.c
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* llvmpipe: warn about illegal use of objects in different contextsRoland Scheidegger2016-01-211-0/+9
| | | | | | | | | | | Doing that is clearly a bug. We can't quite assert as st/mesa may hit this, but increase at least visibility of it a bit. (For the non-refcounted objects it would be illegal too, but we can't detect that unless we'd store the context ourselves. Plus, those don't tend to cause random crashes at context or object destruction time... So just sampler views, surfaces and so targets for now.) Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
* gallium: allow setting of the internal stream output offsetZack Rusin2014-03-071-6/+6
| | | | | | | | | | | | | | | | D3D10 allows setting of the internal offset of a buffer, which is in general only incremented via actual stream output writes. By allowing setting of the internal offset draw_auto is capable of rendering from buffers which have not been actually streamed out to. Our interface didn't allow. This change functionally shouldn't make any difference to OpenGL where instead of an append_bitmask you just get a real array where -1 means append (like in D3D) and 0 means do not append. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Roland Scheidegger <sroland@vmware.com> Reviewed-by: Jose Fonseca <jfonseca@vmware.com> Reviewed-by: Marek Olšák <marek.olsak@amd.com>
* Revert "draw: clear the draw buffers in draw"Zack Rusin2013-06-171-2/+6
| | | | | | | | | | | This reverts commit 41966fdb3b71c0b70aeb095e0eb3c5626c144a3a. While it's a lot cleaner it causes regressions because the draw interface is always called from the draw functions of the drivers (because the buffers need to be mapped) which means that the stream output buffers endup being cleared on every draw rather than on setting. Signed-off-by: Zack Rusin <zackr@vmware.com>
* draw: clear the draw buffers in drawZack Rusin2013-06-171-6/+2
| | | | | | | | | | Moves clearing of the draw so target buffers to the draw module. They had to be cleared in the drivers before which was quite messy. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Jose Fonseca <jfonseca@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
* llvmpipe: reset so buffers when not appendingZack Rusin2013-04-031-0/+6
| | | | | | | | | We need to reset the internal state of the so buffers or we'll keep appending even though we're not supposed to. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: José Fonseca <jfonseca@vmware.com>
* llvmpipe: EXT_transform_feedback support (v1.1)Dave Airlie2012-12-061-87/+37
| | | | | | | | | | | | I'd written most of this ages ago, but never finished it off. This passes 115/130 piglit tests so far. I'll look into the others as time permits. v1.1: fix calloc return check as suggested by Jose. Reviewed-by: Jose Fonseca <jfonseca@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* gallium: improve the pipe_stream_output_info struct (v2)Marek Olšák2012-01-151-1/+1
| | | | | | | | | | | | | | | | | | | | | There are 3 changes: 1) stride is specified for each buffer, not just one, so that drivers don't have to derive it from the outputs 2) new per-output property dst_offset, which specifies the offset into the buffer in dwords where the output should be stored, so that drivers don't have to compute the offsets manually; this will also be useful for gl_SkipComponents from ARB_transform_feedback3 3) register_mask is removed, instead, there is start_component and num_components; register_mask with non-consecutive 1s doesn't make much sense (some hardware cannot do packing of components) Christoph Bumiller: fixed nvc0. v2: resolve merge conflicts in Draw and clean it up
* llvmpipe: adapt to struct stream_output_info modificationsChristoph Bumiller2011-12-151-9/+2
| | | | My fault, I broke it with v5 of 861a029ddb31e91bb4d8e18ab708d0d172f63aad.
* gallium: interface changes necessary to implement transform feedback (v5)Marek Olšák2011-12-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Namely: - EXT_transform_feedback - ARB_transform_feedback2 - ARB_transform_feedback_instanced The old interface was not useful for OpenGL and had to be reworked. This interface was originally designed for OpenGL, but additional changes have been made in order to make st/d3d1x support easier. The most notable change is the stream-out info must be linked with a vertex or geometry shader and cannot be set independently. This is due to limitations of existing hardware (special shader instructions must be used to write into stream-out buffers), and it's also how OpenGL works (stream outputs must be specified prior to linking shaders). Other than that, each stream output buffer has a "view" into it that internally maintains the number of bytes which have been written into it. (one buffer can be bound in several different transform feedback objects in OpenGL, so we must be able to have several views around) The set_stream_output_targets function contains a parameter saying whether new data should be appended or not. Also, the view can optionally be used to provide the vertex count for draw_vbo. Note that the count is supposed to be stored in device memory and the CPU never gets to know its value. OpenGL way | Gallium way ------------------------------------ BeginTF = set_so_targets(append_bitmask = 0) PauseTF = set_so_targets(num_targets = 0) ResumeTF = set_so_targets(append_bitmask = ~0) EndTF = set_so_targets(num_targets = 0) DrawTF = use pipe_draw_info::count_from_stream_output v2: * removed the reset_stream_output_targets function * added a parameter append_bitmask to set_stream_output_targets, each bit specifies whether new data should be appended to each buffer or not. v3: * added PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME for ARB_tfb2, note that the draw-auto subset is always required (for d3d10), only the pause/resume functionality is limited if the CAP is not advertised v4: * update gallium/docs v5: * compactified struct pipe_stream_output_info, updated dump/trace
* gallium: disable stream output in drivers that support itMarek Olšák2011-12-151-0/+7
| | | | I am going to make interface changes and I don't want to break compilation.
* llvmpipe: Remove unnecessary header.Vinson Lee2010-06-231-1/+0
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* llvmpipe: make geometry shaders and stream output workZack Rusin2010-06-221-0/+138