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Diffstat (limited to 'src/gallium/docs/source/screen.rst')
| -rw-r--r-- | src/gallium/docs/source/screen.rst | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 27f65522b69..e78634e59e9 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -147,16 +147,30 @@ These flags determine the possible roles a texture may be used for during its lifetime. Texture usage flags are cumulative and may be combined to create a texture that can be used as multiple things. -* ``RENDER_TARGET``: A colorbuffer or pixelbuffer. +* ``RENDER_TARGET``: A color buffer or pixel buffer which will be rendered to. * ``DISPLAY_TARGET``: A sharable buffer that can be given to another process. -* ``PRIMARY``: A frontbuffer or scanout buffer. -* ``DEPTH_STENCIL``: A depthbuffer, stencilbuffer, or Z buffer. Gallium does - not explicitly provide for stencil-only buffers, so any stencilbuffer - validated here is implicitly also a depthbuffer. +* ``PRIMARY``: A front color buffer or scanout buffer. +* ``DEPTH_STENCIL``: A depth (Z) buffer or stencil buffer. Gallium does + not explicitly provide for stencil-only buffers, so any stencil buffer + validated here is implicitly also a depth buffer. * ``SAMPLER``: A texture that may be sampled from in a fragment or vertex shader. * ``DYNAMIC``: A texture that will be mapped frequently. + +PIPE_TEXTURE_GEOM +^^^^^^^^^^^^^^^^^ + +These flags are used when querying whether a particular pipe_format is +supported by the driver (with the `is_format_supported` function). +Some formats may only be supported for certain kinds of textures. +For example, a compressed format might only be used for POT textures. + +* ``PIPE_TEXTURE_GEOM_NON_SQUARE``: The texture may not be square +* ``PIPE_TEXTURE_GEOM_NON_POWER_OF_TWO``: The texture dimensions may not be + powers of two. + + Methods ------- |