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authorEdward O'Callaghan <[email protected]>2016-02-17 20:59:52 +1100
committerDave Airlie <[email protected]>2016-04-07 11:56:44 +1000
commit4bc9130fba2f815cb910536d3d3a253a8c3ed0b9 (patch)
tree2d69dad9336b94e18822fbf40ac85334abf726ab /src/gallium/docs/source
parent85f79f0c7567e47ca4c5b204ddf7891fd12e3e85 (diff)
gallium: Add PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
Add PIPE_CAP to determine if the GL extension 'GL_ARB_framebuffer_no_attachments' shall be supported. The driver is required to support 'PIPE_FORMAT_NONE' via its 'is_format_supported()' callback in order to determine the MSAA modes the hardware supports so that values requested from the application using 'GL_ARB_framebuffer_no_attachments' may be quantized to what the hardware expects. V.2: Fix doc for a more detailed description of the PIPE_CAP and the corresponding GL constant. V.3: Renamed and repurposed once again. V.4: Remove CAP from cap_mapping array. [airlied: fix damaged whitespace] Signed-off-by: Edward O'Callaghan <[email protected]> Reviewed-by: Marek Olšák <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium/docs/source')
-rw-r--r--src/gallium/docs/source/screen.rst8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 47a19de6ea9..824f580ed44 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -323,6 +323,14 @@ The integer capabilities:
* ``PIPE_CAP_PCI_BUS``: Return the PCI bus number.
* ``PIPE_CAP_PCI_DEVICE``: Return the PCI device number.
* ``PIPE_CAP_PCI_FUNCTION``: Return the PCI function number.
+* ``PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT``:
+ If non-zero, rendering to framebuffers with no surface attachments
+ is supported. The context->is_format_supported function will be expected
+ to be implemented with PIPE_FORMAT_NONE yeilding the MSAA modes the hardware
+ supports. N.B., The maximum number of layers supported for rasterizing a
+ primitive on a layer is obtained from ``PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS``
+ even though it can be larger than the number of layers supported by either
+ rendering or textures.
.. _pipe_capf: