The integer capabilities:
+* ``PIPE_CAP_GRAPHICS``: Whether graphics is supported. If not, contexts can
+ only be created with PIPE_CONTEXT_COMPUTE_ONLY.
* ``PIPE_CAP_NPOT_TEXTURES``: Whether :term:`NPOT` textures may have repeat modes,
normalized coordinates, and mipmaps.
* ``PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS``: How many dual-source blend RTs are support.
bound.
* ``PIPE_CAP_OCCLUSION_QUERY``: Whether occlusion queries are available.
* ``PIPE_CAP_QUERY_TIME_ELAPSED``: Whether PIPE_QUERY_TIME_ELAPSED queries are available.
+* ``PIPE_CAP_TEXTURE_SHADOW_MAP``: indicates whether the fragment shader hardware
+ can do the depth texture / Z comparison operation in TEX instructions
+ for shadow testing.
* ``PIPE_CAP_TEXTURE_SWIZZLE``: Whether swizzling through sampler views is
supported.
-* ``PIPE_CAP_MAX_TEXTURE_2D_LEVELS``: The maximum number of mipmap levels available
- for a 2D texture.
+* ``PIPE_CAP_MAX_TEXTURE_2D_SIZE``: The maximum size of 2D (and 1D) textures.
* ``PIPE_CAP_MAX_TEXTURE_3D_LEVELS``: The maximum number of mipmap levels available
for a 3D texture.
* ``PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS``: The maximum number of mipmap levels available
for a cubemap.
-* ``PIPE_CAP_TEXTURE_MIRROR_CLAMP``: Whether mirrored texture coordinates with clamp
- are supported.
+* ``PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE``: Whether mirrored texture coordinates are
+ supported with the clamp-to-edge wrap mode.
+* ``PIPE_CAP_TEXTURE_MIRROR_CLAMP``: Whether mirrored texture coordinates are supported
+ with clamp or clamp-to-border wrap modes.
* ``PIPE_CAP_BLEND_EQUATION_SEPARATE``: Whether alpha blend equations may be different
from color blend equations, in :ref:`Blend` state.
-* ``PIPE_CAP_SM3``: Whether the vertex shader and fragment shader support equivalent
- opcodes to the Shader Model 3 specification. XXX oh god this is horrible
* ``PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS``: The maximum number of stream buffers.
* ``PIPE_CAP_PRIMITIVE_RESTART``: Whether primitive restart is supported.
* ``PIPE_CAP_INDEP_BLEND_ENABLE``: Whether per-rendertarget blend enabling and channel
* ``PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER``: Whether the TGSI
property FS_COORD_PIXEL_CENTER with value INTEGER is supported.
* ``PIPE_CAP_DEPTH_CLIP_DISABLE``: Whether the driver is capable of disabling
- depth clipping (through pipe_rasterizer_state)
+ depth clipping (=1) (through pipe_rasterizer_state) or supports lowering
+ depth_clamp in the client shader code (=2), for this the driver must
+ currently use TGSI.
+* ``PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE``: Whether the driver is capable of
+ disabling depth clipping (through pipe_rasterizer_state) separately for
+ the near and far plane. If not, depth_clip_near and depth_clip_far will be
+ equal.
* ``PIPE_CAP_SHADER_STENCIL_EXPORT``: Whether a stencil reference value can be
written from a fragment shader.
* ``PIPE_CAP_TGSI_INSTANCEID``: Whether TGSI_SEMANTIC_INSTANCEID is supported
per-instance vertex attribs.
* ``PIPE_CAP_FRAGMENT_COLOR_CLAMPED``: Whether fragment color clamping is
supported. That is, is the pipe_rasterizer_state::clamp_fragment_color
- flag supported by the driver? If not, the state tracker will insert
+ flag supported by the driver? If not, gallium frontends will insert
clamping code into the fragment shaders when needed.
* ``PIPE_CAP_MIXED_COLORBUFFER_FORMATS``: Whether mixed colorbuffer formats are
the vertex colors are never clamped. This is the default for DX10 hardware.
If both clamped and unclamped CAPs are supported, the clamping can be
controlled through pipe_rasterizer_state. If the driver cannot do vertex
- color clamping, the state tracker may insert clamping code into the vertex
+ color clamping, gallium frontends may insert clamping code into the vertex
shader.
* ``PIPE_CAP_GLSL_FEATURE_LEVEL``: Whether the driver supports features
equivalent to a specific GLSL version. E.g. for GLSL 1.3, report 130.
+* ``PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY``: Whether the driver supports
+ features equivalent to a specific GLSL version including all legacy OpenGL
+ features only present in the OpenGL compatibility profile.
+ The only legacy features that Gallium drivers must implement are
+ the legacy shader inputs and outputs (colors, texcoords, fog, clipvertex,
+ edgeflag).
+* ``PIPE_CAP_ESSL_FEATURE_LEVEL``: An optional cap to allow drivers to
+ report a higher GLSL version for GLES contexts. This is useful when a
+ driver does not support all the required features for a higher GL version,
+ but does support the required features for a higher GLES version. A driver
+ is allowed to return ``0`` in which case ``PIPE_CAP_GLSL_FEATURE_LEVEL`` is
+ used.
+ Note that simply returning the same value as the GLSL feature level cap is
+ incorrect. For example, GLSL version 3.30 does not require ``ARB_gpu_shader5``,
+ but ESSL version 3.20 es does require ``EXT_gpu_shader5``
* ``PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION``: Whether quads adhere to
the flatshade_first setting in ``pipe_rasterizer_state``.
* ``PIPE_CAP_USER_VERTEX_BUFFERS``: Whether the driver supports user vertex
- buffers. If not, the state tracker must upload all data which is not in hw
+ buffers. If not, gallium frontends must upload all data which is not in hw
resources. If user-space buffers are supported, the driver must also still
accept HW resource buffers.
* ``PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY``: This CAP describes a hw
input that will always be replaced with sprite coordinates.
* ``PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER``: Whether it is preferable
to use a blit to implement a texture transfer which needs format conversions
- and swizzling in state trackers. Generally, all hardware drivers with
+ and swizzling in gallium frontends. Generally, all hardware drivers with
dedicated memory should return 1 and all software rasterizers should return 0.
* ``PIPE_CAP_QUERY_PIPELINE_STATISTICS``: Whether PIPE_QUERY_PIPELINE_STATISTICS
is supported.
for enabling ARB_clip_control.
* ``PIPE_CAP_VERTEXID_NOBASE``: If true, the driver only supports
TGSI_SEMANTIC_VERTEXID_NOBASE (and not TGSI_SEMANTIC_VERTEXID). This means
- state trackers for APIs whose vertexIDs are offset by basevertex (such as GL)
+ gallium frontends for APIs whose vertexIDs are offset by basevertex (such as GL)
will need to lower TGSI_SEMANTIC_VERTEXID to TGSI_SEMANTIC_VERTEXID_NOBASE
and TGSI_SEMANTIC_BASEVERTEX, so drivers setting this must handle both these
semantics. Only relevant if geometry shaders are supported.
a compressed block is copied to/from a plain pixel of the same size.
* ``PIPE_CAP_CLEAR_TEXTURE``: Whether `clear_texture` will be
available in contexts.
+* ``PIPE_CAP_CLEAR_SCISSORED``: Whether `clear` can accept a scissored
+ bounding box.
* ``PIPE_CAP_DRAW_PARAMETERS``: Whether ``TGSI_SEMANTIC_BASEVERTEX``,
``TGSI_SEMANTIC_BASEINSTANCE``, and ``TGSI_SEMANTIC_DRAWID`` are
supported in vertex shaders.
* ``PIPE_CAP_TGSI_PACK_HALF_FLOAT``: Whether the ``UP2H`` and ``PK2H``
TGSI opcodes are supported.
-* ``PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL``: If state trackers should use
+* ``PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL``: If gallium frontends should use
a system value for the POSITION fragment shader input.
-* ``PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL``: If state trackers should use
+* ``PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL``: If gallium frontends should use
+ a system value for the POINT fragment shader input.
+* ``PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL``: If gallium frontends should use
a system value for the FACE fragment shader input.
Also, the FACE system value is integer, not float.
* ``PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT``: Describes the required
for ``pipe_rasterizer_state::offset_units_unscaled``.
* ``PIPE_CAP_VIEWPORT_SUBPIXEL_BITS``: Number of bits of subpixel precision for
floating point viewport bounds.
+* ``PIPE_CAP_RASTERIZER_SUBPIXEL_BITS``: Number of bits of subpixel precision used
+ by the rasterizer.
* ``PIPE_CAP_MIXED_COLOR_DEPTH_BITS``: Whether there is non-fallback
support for color/depth format combinations that use a different
number of bits. For the purpose of this cap, Z24 is treated as
* ``PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY``: Tell the GLSL compiler to use
the minimum amount of optimizations just to be able to do all the linking
and lowering.
-* ``PIPE_CAP_TGSI_FS_FBFETCH``: Whether a fragment shader can use the FBFETCH
- opcode to retrieve the current value in the framebuffer.
+* ``PIPE_CAP_FBFETCH``: The number of render targets whose value in the
+ current framebuffer can be read in the shader. 0 means framebuffer fetch
+ is not supported. 1 means that only the first render target can be read,
+ and a larger value would mean that multiple render targets are supported.
+* ``PIPE_CAP_FBFETCH_COHERENT``: Whether framebuffer fetches from the fragment
+ shader can be guaranteed to be coherent with framebuffer writes.
* ``PIPE_CAP_TGSI_MUL_ZERO_WINS``: Whether TGSI shaders support the
``TGSI_PROPERTY_MUL_ZERO_WINS`` shader property.
* ``PIPE_CAP_DOUBLES``: Whether double precision floating-point operations
for a driver that does not support multiple output streams (i.e.,
``PIPE_CAP_MAX_VERTEX_STREAMS`` is 1), both query types are identical.
* ``PIPE_CAP_MEMOBJ``: Whether operations on memory objects are supported.
-* ``PIPE_CAP_LOAD_CONSTBUF``: True if the driver supports TGSI_OPCODE_LOAD use
+* ``PIPE_CAP_LOAD_CONSTBUF``: True if the driver supports ``TGSI_OPCODE_LOAD`` use
with constant buffers.
* ``PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS``: Any TGSI register can be used as
an address for indirect register indexing.
* ``PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES``: Limit on combined shader
output resources (images + buffers + fragment outputs). If 0 the state
tracker works it out.
+* ``PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS``: This determines limitations
+ on the number of samples that framebuffer attachments can have.
+ Possible values:
+ 0: color.nr_samples == zs.nr_samples == color.nr_storage_samples
+ (standard MSAA quality)
+ 1: color.nr_samples >= zs.nr_samples == color.nr_storage_samples
+ (enhanced MSAA quality)
+ 2: color.nr_samples >= zs.nr_samples >= color.nr_storage_samples
+ (full flexibility in tuning MSAA quality and performance)
+ All color attachments must have the same number of samples and the same
+ number of storage samples.
* ``PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET``:
Whether pipe_vertex_buffer::buffer_offset is treated as signed. The u_vbuf
module needs this for optimal performance in workstation applications.
* ``PIPE_CAP_CONTEXT_PRIORITY_MASK``: For drivers that support per-context
- priorities, this returns a bitmask of PIPE_CONTEXT_PRIORITY_x for the
+ priorities, this returns a bitmask of ``PIPE_CONTEXT_PRIORITY_x`` for the
supported priority levels. A driver that does not support prioritized
contexts can return 0.
* ``PIPE_CAP_FENCE_SIGNAL``: True if the driver supports signaling semaphores
using fence_server_signal().
-
+* ``PIPE_CAP_CONSTBUF0_FLAGS``: The bits of pipe_resource::flags that must be
+ set when binding that buffer as constant buffer 0. If the buffer doesn't have
+ those bits set, pipe_context::set_constant_buffer(.., 0, ..) is ignored
+ by the driver, and the driver can throw assertion failures.
+* ``PIPE_CAP_PACKED_UNIFORMS``: True if the driver supports packed uniforms
+ as opposed to padding to vec4s.
+* ``PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES``: Whether the
+ ``PIPE_CONSERVATIVE_RASTER_POST_SNAP`` mode is supported for triangles.
+ The post-snap mode means the conservative rasterization occurs after
+ the conversion from floating-point to fixed-point coordinates
+ on the subpixel grid.
+* ``PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES``: Whether the
+ ``PIPE_CONSERVATIVE_RASTER_POST_SNAP`` mode is supported for points and lines.
+* ``PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES``: Whether the
+ ``PIPE_CONSERVATIVE_RASTER_PRE_SNAP`` mode is supported for triangles.
+ The pre-snap mode means the conservative rasterization occurs before
+ the conversion from floating-point to fixed-point coordinates.
+* ``PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES``: Whether the
+ ``PIPE_CONSERVATIVE_RASTER_PRE_SNAP`` mode is supported for points and lines.
+* ``PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE``: Whether
+ ``PIPE_CAP_POST_DEPTH_COVERAGE`` works with conservative rasterization.
+* ``PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE``: Whether
+ inner_coverage from GL_INTEL_conservative_rasterization is supported.
+* ``PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS``: The maximum
+ subpixel precision bias in bits during conservative rasterization.
+* ``PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS``: True is the driver supports
+ programmable sample location through ```get_sample_pixel_grid``` and
+ ```set_sample_locations```.
+* ``PIPE_CAP_MAX_GS_INVOCATIONS``: Maximum supported value of
+ TGSI_PROPERTY_GS_INVOCATIONS.
+* ``PIPE_CAP_MAX_SHADER_BUFFER_SIZE``: Maximum supported size for binding
+ with set_shader_buffers.
+* ``PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS``: Maximum total number of shader
+ buffers. A value of 0 means the sum of all per-shader stage maximums (see
+ ``PIPE_SHADER_CAP_MAX_SHADER_BUFFERS``).
+* ``PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS``: Maximum total number of atomic
+ counters. A value of 0 means the default value (MAX_ATOMIC_COUNTERS = 4096).
+* ``PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS``: Maximum total number of
+ atomic counter buffers. A value of 0 means the sum of all per-shader stage
+ maximums (see ``PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS``).
+* ``PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET``: Maximum recommend memory size
+ for all active texture uploads combined. This is a performance hint.
+ 0 means no limit.
+* ``PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET``: The maximum supported value for
+ of pipe_vertex_element::src_offset.
+* ``PIPE_CAP_SURFACE_SAMPLE_COUNT``: Whether the driver
+ supports pipe_surface overrides of resource nr_samples. If set, will
+ enable EXT_multisampled_render_to_texture.
+* ``PIPE_CAP_TGSI_ATOMFADD``: Atomic floating point adds are supported on
+ images, buffers, and shared memory.
+* ``PIPE_CAP_RGB_OVERRIDE_DST_ALPHA_BLEND``: True if the driver needs blend state to use zero/one instead of destination alpha for RGB/XRGB formats.
+* ``PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS``: True if the driver wants TESSINNER and TESSOUTER to be inputs (rather than system values) for tessellation evaluation shaders.
+* ``PIPE_CAP_DEST_SURFACE_SRGB_CONTROL``: Indicates whether the drivers
+ supports switching the format between sRGB and linear for a surface that is
+ used as destination in draw and blit calls.
+* ``PIPE_CAP_NIR_COMPACT_ARRAYS``: True if the compiler backend supports NIR's compact array feature, for all shader stages.
+* ``PIPE_CAP_MAX_VARYINGS``: The maximum number of fragment shader
+ varyings. This will generally correspond to
+ ``PIPE_SHADER_CAP_MAX_INPUTS`` for the fragment shader, but in some
+ cases may be a smaller number.
+* ``PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK``: Whether pipe_grid_info::last_block
+ is implemented by the driver. See struct pipe_grid_info for more details.
+* ``PIPE_CAP_COMPUTE_SHADER_DERIVATIVE``: True if the driver supports derivatives (and texture lookups with implicit derivatives) in compute shaders.
+* ``PIPE_CAP_TGSI_SKIP_SHRINK_IO_ARRAYS``: Whether the TGSI pass to shrink IO
+ arrays should be skipped and enforce keeping the declared array sizes instead.
+ A driver might rely on the input mapping that was defined with the original
+ GLSL code.
+* ``PIPE_CAP_IMAGE_LOAD_FORMATTED``: True if a format for image loads does not need to be specified in the shader IR
+* ``PIPE_CAP_THROTTLE``: Whether or not gallium frontends should throttle pipe_context
+ execution. 0 = throttling is disabled.
+* ``PIPE_CAP_DMABUF``: Whether Linux DMABUF handles are supported by
+ resource_from_handle and resource_get_handle.
+* ``PIPE_CAP_PREFER_COMPUTE_FOR_MULTIMEDIA``: Whether VDPAU, VAAPI, and
+ OpenMAX should use a compute-based blit instead of pipe_context::blit and compute pipeline for compositing images.
+* ``PIPE_CAP_FRAGMENT_SHADER_INTERLOCK``: True if fragment shader interlock
+ functionality is supported.
+* ``PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED``: True if driver handles
+ gl_LocalInvocationIndex and gl_GlobalInvocationID. Otherwise, gallium frontends will
+ lower those system values.
+* ``PIPE_CAP_ATOMIC_FLOAT_MINMAX``: Atomic float point minimum,
+ maximum, exchange and compare-and-swap support to buffer and shared variables.
+* ``PIPE_CAP_TGSI_DIV``: Whether opcode DIV is supported
+* ``PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD``: Whether texture lookups with
+ explicit LOD is supported in the fragment shader.
+* ``PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES``: True if the driver supports
+ derivatives in fragment shaders.
+* ``PIPE_CAP_VERTEX_SHADER_SATURATE``: True if the driver supports saturate
+ modifiers in the vertex shader.
+* ``PIPE_CAP_TEXTURE_SHADOW_LOD``: True if the driver supports shadow sampler
+ types with texture functions having interaction with LOD of texture lookup.
+* ``PIPE_CAP_SHADER_SAMPLES_IDENTICAL``: True if the driver supports a shader query to tell whether all samples of a multisampled surface are definitely identical.
+* ``PIPE_CAP_TGSI_ATOMINC_WRAP``: Atomic increment/decrement + wrap around are supported.
+* ``PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF``: True if gallium frontends should
+ turn arrays whose contents can be deduced at compile time into constant
+ buffer loads, or false if the driver can handle such arrays itself in a more
+ efficient manner.
+* ``PIPE_CAP_GL_SPIRV``: True if the driver supports ARB_gl_spirv extension.
+* ``PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS``: True if the driver supports Variable Pointers in SPIR-V shaders.
+* ``PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION``: True if driver supports demote keyword in GLSL programs.
+* ``PIPE_CAP_TGSI_TG4_COMPONENT_IN_SWIZZLE``: True if driver wants the TG4 component encoded in sampler swizzle rather than as a separate source.
+* ``PIPE_CAP_FLATSHADE``: Driver supports pipe_rasterizer_state::flatshade.
+* ``PIPE_CAP_ALPHA_TEST``: Driver supports alpha-testing.
+* ``PIPE_CAP_POINT_SIZE_FIXED``: Driver supports point-sizes that are fixed,
+ as opposed to writing gl_PointSize for every point.
+* ``PIPE_CAP_TWO_SIDED_COLOR``: Driver supports two-sided coloring.
+* ``PIPE_CAP_CLIP_PLANES``: Driver supports user-defined clip-planes.
+* ``PIPE_CAP_MAX_VERTEX_BUFFERS``: Number of supported vertex buffers.
+* ``PIPE_CAP_OPENCL_INTEGER_FUNCTIONS``: Driver supports extended OpenCL-style integer functions. This includes averge, saturating additiong, saturating subtraction, absolute difference, count leading zeros, and count trailing zeros.
+* ``PIPE_CAP_INTEGER_MULTIPLY_32X16``: Driver supports integer multiplication between a 32-bit integer and a 16-bit integer. If the second operand is 32-bits, the upper 16-bits are ignored, and the low 16-bits are possibly sign extended as necessary.
+* ``PIPE_CAP_NIR_IMAGES_AS_DEREF``: Whether NIR image load/store intrinsics should be nir_intrinsic_image_deref_* instead of nir_intrinsic_image_*. Defaults to true.
+* ``PIPE_CAP_PACKED_STREAM_OUTPUT``: Driver supports packing optimization for stream output (e.g. GL transform feedback captured variables). Defaults to true.
+* ``PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED``: Driver needs the nir_lower_viewport_transform pass to be enabled. This also means that the gl_Position value is modified and should be lowered for transform feedback, if needed. Defaults to false.
+* ``PIPE_CAP_PSIZ_CLAMPED``: Driver needs for the point size to be clamped. Additionally, the gl_PointSize has been modified and its value should be lowered for transform feedback, if needed. Defaults to false.
+* ``PIPE_CAP_DRAW_INFO_START_WITH_USER_INDICES``: pipe_draw_info::start can be non-zero with user indices.
+* ``PIPE_CAP_GL_BEGIN_END_BUFFER_SIZE``: Buffer size used to upload vertices for glBegin/glEnd.
+* ``PIPE_CAP_VIEWPORT_SWIZZLE``: Whether pipe_viewport_state::swizzle can be used to specify pre-clipping swizzling of coordinates (see GL_NV_viewport_swizzle).
+* ``PIPE_CAP_SYSTEM_SVM``: True if all application memory can be shared with the GPU without explicit mapping.
+* ``PIPE_CAP_VIEWPORT_MASK``: Whether ``TGSI_SEMANTIC_VIEWPORT_MASK`` and ``TGSI_PROPERTY_LAYER_VIEWPORT_RELATIVE`` are supported (see GL_NV_viewport_array2).
+* ``PIPE_CAP_MAP_UNSYNCHRONIZED_THREAD_SAFE``: Whether mapping a buffer as unsynchronized from any thread is safe.
+* ``PIPE_CAP_GLSL_ZERO_INIT``: Choose a default zero initialization some glsl variables. If `1`, then all glsl shader variables and gl_FragColor are initialized to zero. If `2`, then shader out variables are not initialized but function out variables are.
.. _pipe_capf:
applied to anisotropically filtered textures.
* ``PIPE_CAPF_MAX_TEXTURE_LOD_BIAS``: The maximum :term:`LOD` bias that may be applied
to filtered textures.
+* ``PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE``: The minimum conservative rasterization
+ dilation.
+* ``PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE``: The maximum conservative rasterization
+ dilation.
+* ``PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY``: The conservative rasterization
+ dilation granularity for values relative to the minimum dilation.
.. _pipe_shader_cap:
* ``PIPE_SHADER_CAP_INT64_ATOMICS``: Whether int64 atomic opcodes are supported. The device needs to support add, sub, swap, cmpswap, and, or, xor, min, and max.
* ``PIPE_SHADER_CAP_FP16``: Whether half precision floating-point opcodes are supported.
If unsupported, half precision ops need to be lowered to full precision.
+* ``PIPE_SHADER_CAP_FP16_DERIVATIVES``: Whether half precision floating-point
+ DDX and DDY opcodes are supported.
+* ``PIPE_SHADER_CAP_INT16``: Whether 16-bit signed and unsigned integer types
+ are supported.
* ``PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS``: The maximum number of texture
samplers.
* ``PIPE_SHADER_CAP_PREFERRED_IR``: Preferred representation of the
ignore tgsi_declaration_range::Last for shader inputs and outputs.
* ``PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT``: This is the maximum number
of iterations that loops are allowed to have to be unrolled. It is only
- a hint to state trackers. Whether any loops will be unrolled is not
+ a hint to gallium frontends. Whether any loops will be unrolled is not
guaranteed.
* ``PIPE_SHADER_CAP_MAX_SHADER_BUFFERS``: Maximum number of memory buffers
(also used to implement atomic counters). Having this be non-0 also
program. It should be a mask of ``pipe_shader_ir`` bits.
* ``PIPE_SHADER_CAP_MAX_SHADER_IMAGES``: Maximum number of image units.
* ``PIPE_SHADER_CAP_LOWER_IF_THRESHOLD``: IF and ELSE branches with a lower
- cost than this value should be lowered by the state tracker for better
+ cost than this value should be lowered by gallium frontends for better
performance. This is a tunable for the GLSL compiler and the behavior is
specific to the compiler.
* ``PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS``: Whether the merge registers
**sample_count** the number of samples. 0 and 1 mean no multisampling,
the maximum allowed legal value is 32.
+**storage_sample_count** the number of storage samples. This must be <=
+sample_count. See the documentation of ``pipe_resource::nr_storage_samples``.
+
**bindings** is a bitmask of :ref:`PIPE_BIND` flags.
Returns TRUE if all usages can be satisfied.
**last_level** the last mip map level present.
-**nr_samples** the nr of msaa samples. 0 (or 1) specifies a resource
-which isn't multisampled.
+**nr_samples**: Number of samples determining quality, driving the rasterizer,
+shading, and framebuffer. It is the number of samples seen by the whole
+graphics pipeline. 0 and 1 specify a resource which isn't multisampled.
+
+**nr_storage_samples**: Only color buffers can set this lower than nr_samples.
+Multiple samples within a pixel can have the same color. ``nr_storage_samples``
+determines how many slots for different colors there are per pixel.
+If there are not enough slots to store all sample colors, some samples will
+have an undefined color (called "undefined samples").
+
+The resolve blit behavior is driver-specific, but can be one of these two:
+1. Only defined samples will be averaged. Undefined samples will be ignored.
+2. Undefined samples will be approximated by looking at surrounding defined
+ samples (even in different pixels).
+
+Blits and MSAA texturing: If the sample being fetched is undefined, one of
+the defined samples is returned instead.
+
+Sample shading (``set_min_samples``) will operate at a sample frequency that
+is at most ``nr_storage_samples``. Greater ``min_samples`` values will be
+replaced by ``nr_storage_samples``.
**usage** one of the :ref:`PIPE_USAGE` flags.
**flags** bitmask of PIPE_RESOURCE_FLAG flags.
+**next**: Pointer to the next plane for resources that consist of multiple
+memory planes.
+As a corollary, this mean resources for an image with multiple planes have
+to be created starting from the highest plane.
resource_changed
^^^^^^^^^^^^^^^^
projects / mesa.git / blobdiff