Per ML discussion.
+++ /dev/null
-# Sphinx build info version 1
-# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: e48279c15771d329f916579cf997b5a9
-tags: fbb0d17656682115ca4d033fb2f83ba1
+++ /dev/null
-Context
-=======
-
-The context object represents the purest, most directly accessible, abilities
-of the device's 3D rendering pipeline.
-
-Methods
--------
-
-CSO State
-^^^^^^^^^
-
-All CSO state is created, bound, and destroyed, with triplets of methods that
-all follow a specific naming scheme. For example, ``create_blend_state``,
-``bind_blend_state``, and ``destroy_blend_state``.
-
-CSO objects handled by the context object:
-
-* :ref:`Blend`: ``*_blend_state``
-* :ref:`Sampler`: These are special; they can be bound to either vertex or
- fragment samplers, and they are bound in groups.
- ``bind_fragment_sampler_states``, ``bind_vertex_sampler_states``
-* :ref:`Rasterizer`: ``*_rasterizer_state``
-* :ref:`Depth, Stencil, & Alpha`: ``*_depth_stencil_alpha_state``
-* :ref:`Shader`: These have two sets of methods. ``*_fs_state`` is for
- fragment shaders, and ``*_vs_state`` is for vertex shaders.
-
-
-Resource Binding State
-^^^^^^^^^^^^^^^^^^^^^^
-
-This state describes how resources in various flavours (textures,
-buffers, surfaces) are bound to the driver.
-
-
-* ``set_constant_buffer``
-* ``set_framebuffer_state``
-* ``set_fragment_sampler_textures``
-* ``set_vertex_sampler_textures``
-* ``set_vertex_buffers``
-
-
-Non-CSO State
-^^^^^^^^^^^^^
-
-These pieces of state are too small, variable, and/or trivial to have CSO
-objects. They all follow simple, one-method binding calls, e.g.
-``set_edgeflags``.
-
-* ``set_edgeflags``
-* ``set_blend_color``
-* ``set_clip_state``
-* ``set_polygon_stipple``
-* ``set_scissor_state``
-* ``set_viewport_state``
-* ``set_vertex_elements``
-
-
-Clearing
-^^^^^^^^
-
-``clear`` initializes some or all of the surfaces currently bound to
-the framebuffer to particular RGBA, depth, or stencil values.
-
-Clear is one of the most difficult concepts to nail down to a single
-interface and it seems likely that we will want to add additional
-clear paths, for instance clearing surfaces not bound to the
-framebuffer, or read-modify-write clears such as depth-only or
-stencil-only clears of packed depth-stencil buffers.
-
-
-Drawing
-^^^^^^^
-
-``draw_arrays``
-
-``draw_elements``
-
-``draw_range_elements``
-
-
-Queries
-^^^^^^^
-
-Queries gather some statistic from the 3D pipeline over one or more
-draws. Queries may be nested, though no state tracker currently
-exercises this.
-
-Queries can be created with ``create_query`` and deleted with
-``destroy_query``. To enable a query, use ``begin_query``, and when finished,
-use ``end_query`` to stop the query. Finally, ``get_query_result`` is used
-to retrieve the results.
-
-Flushing
-^^^^^^^^
-
-``flush``
-
-
-Resource Busy Queries
-^^^^^^^^^^^^^^^^^^^^^
-
-``is_texture_referenced``
-
-``is_buffer_referenced``
-
-
-
-Blitting
-^^^^^^^^
-
-These methods emulate classic blitter controls. They are not guaranteed to be
-available; if they are set to NULL, then they are not present.
-
-These methods operate directly on ``pipe_surface`` objects, and stand
-apart from any 3D state in the context. Blitting functionality may be
-moved to a separate abstraction at some point in the future.
-
-``surface_fill`` performs a fill operation on a section of a surface.
-
-``surface_copy`` blits a region of a surface to a region of another surface,
-provided that both surfaces are the same format. The source and destination
-may be the same surface, and overlapping blits are permitted.
-
-The interfaces to these calls are likely to change to make it easier
-for a driver to batch multiple blits with the same source and
-destination.
-
+++ /dev/null
-CSO
-===
-
-CSO, Constant State Objects, are a core part of Gallium's API.
-
-CSO work on the principle of reusable state; they are created by filling
-out a state object with the desired properties, then passing that object
-to a context. The context returns an opaque context-specific handle which
-can be bound at any time for the desired effect.
-
-.. toctree::
- :glob:
-
- cso/*
+++ /dev/null
-.. _blend:
-
-Blend
-=====
-
-This state controls blending of the final fragments into the target rendering
-buffers.
-
-XXX it is unresolved what behavior should result if blend_enable is off.
-
-Members
--------
-
-XXX undocumented members
+++ /dev/null
-.. _depth,stencil,&alpha:
-
-Depth, Stencil, & Alpha
-=======================
-
-These three states control the depth, stencil, and alpha tests, used to
-discard fragments that have passed through the fragment shader.
-
-Traditionally, these three tests have been clumped together in hardware, so
-they are all stored in one structure.
-
-During actual execution, the order of operations done on fragments is always:
-
-* Stencil
-* Depth
-* Alpha
-
-Depth Members
--------------
-
-enabled
- Whether the depth test is enabled.
-writemask
- Whether the depth buffer receives depth writes.
-func
- The depth test function. One of PIPE_FUNC.
-
-Stencil Members
----------------
-
-XXX document valuemask, writemask
-
-enabled
- Whether the stencil test is enabled. For the second stencil, whether the
- two-sided stencil is enabled.
-func
- The stencil test function. One of PIPE_FUNC.
-ref_value
- Stencil test reference value; used for certain functions.
-fail_op
- The operation to carry out if the stencil test fails. One of
- PIPE_STENCIL_OP.
-zfail_op
- The operation to carry out if the stencil test passes but the depth test
- fails. One of PIPE_STENCIL_OP.
-zpass_op
- The operation to carry out if the stencil test and depth test both pass.
- One of PIPE_STENCIL_OP.
-
-Alpha Members
--------------
-
-enabled
- Whether the alpha test is enabled.
-func
- The alpha test function. One of PIPE_FUNC.
-ref_value
- Alpha test reference value; used for certain functions.
+++ /dev/null
-.. _rasterizer:
-
-Rasterizer
-==========
-
-The rasterizer is the main chunk of state controlling how vertices are
-interpolated into fragments.
-
-Members
--------
-
-XXX undocumented light_twoside, front_winding, cull_mode, fill_cw, fill_ccw, offset_cw, offset_ccw
-XXX moar undocumented poly_smooth, line_stipple_factor, line_last_pixel, offset_units, offset_scale
-XXX sprite_coord_mode
-
-flatshade
- If set, the provoking vertex of each polygon is used to determine the
- color of the entire polygon. If not set, the color fragments will be
- interpolated from each vertex's color.
-scissor
- Whether the scissor test is enabled.
-poly_stipple_enable
- Whether polygon stippling is enabled.
-point_smooth
- Whether points should be smoothed. Point smoothing turns rectangular
- points into circles or ovals.
-point_sprite
- Whether point sprites are enabled.
-point_size_per_vertex
- Whether vertices have a point size element.
-multisample
- Whether :ref:`MSAA` is enabled.
-line_smooth
- Whether lines should be smoothed. Line smoothing is simply anti-aliasing.
-line_stipple_enable
- Whether line stippling is enabled.
-line_stipple_pattern
- 16-bit bitfield of on/off flags, used to pattern the line stipple.
-bypass_vs_clip_and_viewport
- Whether the entire TCL pipeline should be bypassed. This implies that
- vertices are pre-transformed for the viewport, and will not be run
- through the vertex shader. Note that implementations may still clip away
- vertices that are not in the viewport.
-flatshade_first
- Whether the first vertex should be the provoking vertex, for most
- primitives. If not set, the last vertex is the provoking vertex.
-gl_rasterization_rules
- Whether the rasterizer should use (0.5, 0.5) pixel centers. When not set,
- the rasterizer will use (0, 0) for pixel centers.
-line_width
- The width of lines.
-point_size
- The size of points, if not specified per-vertex.
-point_size_min
- The minimum size of points.
-point_size_max
- The maximum size of points.
-
-Notes
------
-
-flatshade
-^^^^^^^^^
-
-The actual interpolated shading algorithm is obviously
-implementation-dependent, but will usually be Gourard for most hardware.
-
-bypass_vs_clip_and_viewport
-^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-When set, this implies that vertices are pre-transformed for the viewport, and
-will not be run through the vertex shader. Note that implementations may still
-clip away vertices that are not visible.
-
-flatshade_first
-^^^^^^^^^^^^^^^
-
-There are several important exceptions to the specification of this rule.
-
-* ``PIPE_PRIMITIVE_POLYGON``: The provoking vertex is always the first
- vertex. If the caller wishes to change the provoking vertex, they merely
- need to rotate the vertices themselves.
-* ``PIPE_PRIMITIVE_QUAD``, ``PIPE_PRIMITIVE_QUAD_STRIP``: This option has no
- effect; the provoking vertex is always the last vertex.
-* ``PIPE_PRIMITIVE_TRIANGLE_FAN``: When set, the provoking vertex is the
- second vertex, not the first. This permits each segment of the fan to have
- a different color.
+++ /dev/null
-.. _sampler:
-
-Sampler
-=======
-
-Texture units have many options for selecting texels from loaded textures;
-this state controls an individual texture unit's texel-sampling settings.
-
-Texture coordinates are always treated as four-dimensional, and referred to
-with the traditional (S, T, R, Q) notation.
-
-Members
--------
-
-XXX undocumented compare_mode, compare_func
-
-wrap_s
- How to wrap the S coordinate. One of PIPE_TEX_WRAP.
-wrap_t
- How to wrap the T coordinate. One of PIPE_TEX_WRAP.
-wrap_r
- How to wrap the R coordinate. One of PIPE_TEX_WRAP.
-min_img_filter
- The filter to use when minifying texels. One of PIPE_TEX_FILTER.
-min_mip_filter
- The filter to use when minifying mipmapped textures. One of
- PIPE_TEX_FILTER.
-mag_img_filter
- The filter to use when magnifying texels. One of PIPE_TEX_FILTER.
-normalized_coords
- Whether the texture coordinates are normalized. If normalized, they will
- always be in [0, 1]. If not, they will be in the range of each dimension
- of the loaded texture.
-prefilter
- XXX From the Doxy, "weird sampling state exposed by some APIs." Refine.
-lod_bias
- The bias to apply to the level of detail.
-min_lod
- Minimum level of detail, used to clamp LoD after bias.
-max_lod
- Maximum level of detail, used to clamp LoD after bias.
-border_color
- RGBA color used for out-of-bounds coordinates.
-max_anisotropy
- Maximum filtering to apply anisotropically to textures. Setting this to
- 1.0 effectively disables anisotropic filtering.
+++ /dev/null
-.. _shader:
-
-Shader
-======
-
-One of the two types of shaders supported by Gallium.
-
-Members
--------
-
-tokens
- A list of tgsi_tokens.
+++ /dev/null
-Glossary
-========
-
-.. glossary::
- :sorted:
-
- MSAA
- Multi-Sampled Anti-Aliasing. A basic anti-aliasing technique that takes
- multiple samples of the depth buffer, and uses this information to
- smooth the edges of polygons.
+++ /dev/null
-.. Gallium documentation master file, created by
- sphinx-quickstart on Sun Dec 20 14:09:05 2009.
- You can adapt this file completely to your liking, but it should at least
- contain the root `toctree` directive.
-
-Welcome to Gallium's documentation!
-===================================
-
-Contents:
-
-.. toctree::
- :maxdepth: 2
-
- intro
- tgsi
- screen
- context
- cso
- glossary
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
-
+++ /dev/null
-Introduction
-============
-
-What is Gallium?
-----------------
-
-Gallium is essentially an API for writing graphics drivers in a largely
-device-agnostic fashion. It provides several objects which encapsulate the
-core services of graphics hardware in a straightforward manner.
+++ /dev/null
-Screen
-======
-
-A screen is an object representing the context-independent part of a device.
-
-Methods
--------
-
-XXX moar; got bored
-
-get_name
-^^^^^^^^
-
-Returns an identifying name for the screen.
-
-get_vendor
-^^^^^^^^^^
-
-Returns the screen vendor.
-
-get_param
-^^^^^^^^^
-
-Get an integer/boolean screen parameter.
-
-get_paramf
-^^^^^^^^^^
-
-Get a floating-point screen parameter.
-
-is_format_supported
-^^^^^^^^^^^^^^^^^^^
-
-See if a format can be used in a specific manner.
-
-texture_create
-^^^^^^^^^^^^^^
-
-Given a template of texture setup, create a BO-backed texture.
+++ /dev/null
-TGSI
-====
-
-TGSI, Tungsten Graphics Shader Instructions, is an intermediate language
-for describing shaders. Since Gallium is inherently shaderful, shaders are
-an important part of the API. TGSI is the only intermediate representation
-used by all drivers.
-
-Instruction Set
----------------
-
-From GL_NV_vertex_program
-^^^^^^^^^^^^^^^^^^^^^^^^^
-
-
-ARL - Address Register Load
-
-.. math::
-
- dst.x = \lfloor src.x\rfloor
-
- dst.y = \lfloor src.y\rfloor
-
- dst.z = \lfloor src.z\rfloor
-
- dst.w = \lfloor src.w\rfloor
-
-
-MOV - Move
-
-.. math::
-
- dst.x = src.x
-
- dst.y = src.y
-
- dst.z = src.z
-
- dst.w = src.w
-
-
-LIT - Light Coefficients
-
-.. math::
-
- dst.x = 1
-
- dst.y = max(src.x, 0)
-
- dst.z = (src.x > 0) ? max(src.y, 0)^{clamp(src.w, -128, 128))} : 0
-
- dst.w = 1
-
-
-RCP - Reciprocal
-
-.. math::
-
- dst.x = \frac{1}{src.x}
-
- dst.y = \frac{1}{src.x}
-
- dst.z = \frac{1}{src.x}
-
- dst.w = \frac{1}{src.x}
-
-
-RSQ - Reciprocal Square Root
-
-.. math::
-
- dst.x = \frac{1}{\sqrt{|src.x|}}
-
- dst.y = \frac{1}{\sqrt{|src.x|}}
-
- dst.z = \frac{1}{\sqrt{|src.x|}}
-
- dst.w = \frac{1}{\sqrt{|src.x|}}
-
-
-EXP - Approximate Exponential Base 2
-
-.. math::
-
- dst.x = 2^{\lfloor src.x\rfloor}
-
- dst.y = src.x - \lfloor src.x\rfloor
-
- dst.z = 2^{src.x}
-
- dst.w = 1
-
-
-LOG - Approximate Logarithm Base 2
-
-.. math::
-
- dst.x = \lfloor\log_2{|src.x|}\rfloor
-
- dst.y = \frac{|src.x|}{2^{\lfloor\log_2{|src.x|}\rfloor}}
-
- dst.z = \log_2{|src.x|}
-
- dst.w = 1
-
-
-MUL - Multiply
-
-.. math::
-
- dst.x = src0.x \times src1.x
-
- dst.y = src0.y \times src1.y
-
- dst.z = src0.z \times src1.z
-
- dst.w = src0.w \times src1.w
-
-
-ADD - Add
-
-.. math::
-
- dst.x = src0.x + src1.x
-
- dst.y = src0.y + src1.y
-
- dst.z = src0.z + src1.z
-
- dst.w = src0.w + src1.w
-
-
-DP3 - 3-component Dot Product
-
-.. math::
-
- dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
- dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
- dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
- dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
-
-DP4 - 4-component Dot Product
-
-.. math::
-
- dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
- dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
- dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
- dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
-
-DST - Distance Vector
-
-.. math::
-
- dst.x = 1
-
- dst.y = src0.y \times src1.y
-
- dst.z = src0.z
-
- dst.w = src1.w
-
-
-MIN - Minimum
-
-.. math::
-
- dst.x = min(src0.x, src1.x)
-
- dst.y = min(src0.y, src1.y)
-
- dst.z = min(src0.z, src1.z)
-
- dst.w = min(src0.w, src1.w)
-
-
-MAX - Maximum
-
-.. math::
-
- dst.x = max(src0.x, src1.x)
-
- dst.y = max(src0.y, src1.y)
-
- dst.z = max(src0.z, src1.z)
-
- dst.w = max(src0.w, src1.w)
-
-
-SLT - Set On Less Than
-
-.. math::
-
- dst.x = (src0.x < src1.x) ? 1 : 0
-
- dst.y = (src0.y < src1.y) ? 1 : 0
-
- dst.z = (src0.z < src1.z) ? 1 : 0
-
- dst.w = (src0.w < src1.w) ? 1 : 0
-
-
-SGE - Set On Greater Equal Than
-
-.. math::
-
- dst.x = (src0.x >= src1.x) ? 1 : 0
-
- dst.y = (src0.y >= src1.y) ? 1 : 0
-
- dst.z = (src0.z >= src1.z) ? 1 : 0
-
- dst.w = (src0.w >= src1.w) ? 1 : 0
-
-
-MAD - Multiply And Add
-
-.. math::
-
- dst.x = src0.x \times src1.x + src2.x
-
- dst.y = src0.y \times src1.y + src2.y
-
- dst.z = src0.z \times src1.z + src2.z
-
- dst.w = src0.w \times src1.w + src2.w
-
-
-SUB - Subtract
-
-.. math::
-
- dst.x = src0.x - src1.x
-
- dst.y = src0.y - src1.y
-
- dst.z = src0.z - src1.z
-
- dst.w = src0.w - src1.w
-
-
-LRP - Linear Interpolate
-
-.. math::
-
- dst.x = src0.x \times (src1.x - src2.x) + src2.x
-
- dst.y = src0.y \times (src1.y - src2.y) + src2.y
-
- dst.z = src0.z \times (src1.z - src2.z) + src2.z
-
- dst.w = src0.w \times (src1.w - src2.w) + src2.w
-
-
-CND - Condition
-
-.. math::
-
- dst.x = (src2.x > 0.5) ? src0.x : src1.x
-
- dst.y = (src2.y > 0.5) ? src0.y : src1.y
-
- dst.z = (src2.z > 0.5) ? src0.z : src1.z
-
- dst.w = (src2.w > 0.5) ? src0.w : src1.w
-
-
-DP2A - 2-component Dot Product And Add
-
-.. math::
-
- dst.x = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
- dst.y = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
- dst.z = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
- dst.w = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
-
-FRAC - Fraction
-
-.. math::
-
- dst.x = src.x - \lfloor src.x\rfloor
-
- dst.y = src.y - \lfloor src.y\rfloor
-
- dst.z = src.z - \lfloor src.z\rfloor
-
- dst.w = src.w - \lfloor src.w\rfloor
-
-
-CLAMP - Clamp
-
-.. math::
-
- dst.x = clamp(src0.x, src1.x, src2.x)
-
- dst.y = clamp(src0.y, src1.y, src2.y)
-
- dst.z = clamp(src0.z, src1.z, src2.z)
-
- dst.w = clamp(src0.w, src1.w, src2.w)
-
-
-FLR - Floor
-
-This is identical to ARL.
-
-.. math::
-
- dst.x = \lfloor src.x\rfloor
-
- dst.y = \lfloor src.y\rfloor
-
- dst.z = \lfloor src.z\rfloor
-
- dst.w = \lfloor src.w\rfloor
-
-
-ROUND - Round
-
-.. math::
-
- dst.x = round(src.x)
-
- dst.y = round(src.y)
-
- dst.z = round(src.z)
-
- dst.w = round(src.w)
-
-
-EX2 - Exponential Base 2
-
-.. math::
-
- dst.x = 2^{src.x}
-
- dst.y = 2^{src.x}
-
- dst.z = 2^{src.x}
-
- dst.w = 2^{src.x}
-
-
-LG2 - Logarithm Base 2
-
-.. math::
-
- dst.x = \log_2{src.x}
-
- dst.y = \log_2{src.x}
-
- dst.z = \log_2{src.x}
-
- dst.w = \log_2{src.x}
-
-
-POW - Power
-
-.. math::
-
- dst.x = src0.x^{src1.x}
-
- dst.y = src0.x^{src1.x}
-
- dst.z = src0.x^{src1.x}
-
- dst.w = src0.x^{src1.x}
-
-XPD - Cross Product
-
-.. math::
-
- dst.x = src0.y \times src1.z - src1.y \times src0.z
-
- dst.y = src0.z \times src1.x - src1.z \times src0.x
-
- dst.z = src0.x \times src1.y - src1.x \times src0.y
-
- dst.w = 1
-
-
-ABS - Absolute
-
-.. math::
-
- dst.x = |src.x|
-
- dst.y = |src.y|
-
- dst.z = |src.z|
-
- dst.w = |src.w|
-
-
-RCC - Reciprocal Clamped
-
-XXX cleanup on aisle three
-
-.. math::
-
- dst.x = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
- dst.y = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
- dst.z = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
- dst.w = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
-
-DPH - Homogeneous Dot Product
-
-.. math::
-
- dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
- dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
- dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
- dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
-
-COS - Cosine
-
-.. math::
-
- dst.x = \cos{src.x}
-
- dst.y = \cos{src.x}
-
- dst.z = \cos{src.x}
-
- dst.w = \cos{src.w}
-
-
-DDX - Derivative Relative To X
-
-.. math::
-
- dst.x = partialx(src.x)
-
- dst.y = partialx(src.y)
-
- dst.z = partialx(src.z)
-
- dst.w = partialx(src.w)
-
-
-DDY - Derivative Relative To Y
-
-.. math::
-
- dst.x = partialy(src.x)
-
- dst.y = partialy(src.y)
-
- dst.z = partialy(src.z)
-
- dst.w = partialy(src.w)
-
-
-KILP - Predicated Discard
-
- discard
-
-
-PK2H - Pack Two 16-bit Floats
-
- TBD
-
-
-PK2US - Pack Two Unsigned 16-bit Scalars
-
- TBD
-
-
-PK4B - Pack Four Signed 8-bit Scalars
-
- TBD
-
-
-PK4UB - Pack Four Unsigned 8-bit Scalars
-
- TBD
-
-
-RFL - Reflection Vector
-
-.. math::
-
- dst.x = 2 \times (src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z) / (src0.x \times src0.x + src0.y \times src0.y + src0.z \times src0.z) \times src0.x - src1.x
-
- dst.y = 2 \times (src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z) / (src0.x \times src0.x + src0.y \times src0.y + src0.z \times src0.z) \times src0.y - src1.y
-
- dst.z = 2 \times (src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z) / (src0.x \times src0.x + src0.y \times src0.y + src0.z \times src0.z) \times src0.z - src1.z
-
- dst.w = 1
-
-Considered for removal.
-
-
-SEQ - Set On Equal
-
-.. math::
-
- dst.x = (src0.x == src1.x) ? 1 : 0
- dst.y = (src0.y == src1.y) ? 1 : 0
- dst.z = (src0.z == src1.z) ? 1 : 0
- dst.w = (src0.w == src1.w) ? 1 : 0
-
-
-SFL - Set On False
-
-.. math::
-
- dst.x = 0
- dst.y = 0
- dst.z = 0
- dst.w = 0
-
-Considered for removal.
-
-SGT - Set On Greater Than
-
-.. math::
-
- dst.x = (src0.x > src1.x) ? 1 : 0
- dst.y = (src0.y > src1.y) ? 1 : 0
- dst.z = (src0.z > src1.z) ? 1 : 0
- dst.w = (src0.w > src1.w) ? 1 : 0
-
-
-SIN - Sine
-
-.. math::
-
- dst.x = \sin{src.x}
-
- dst.y = \sin{src.x}
-
- dst.z = \sin{src.x}
-
- dst.w = \sin{src.w}
-
-
-SLE - Set On Less Equal Than
-
-.. math::
-
- dst.x = (src0.x <= src1.x) ? 1 : 0
- dst.y = (src0.y <= src1.y) ? 1 : 0
- dst.z = (src0.z <= src1.z) ? 1 : 0
- dst.w = (src0.w <= src1.w) ? 1 : 0
-
-
-SNE - Set On Not Equal
-
-.. math::
-
- dst.x = (src0.x != src1.x) ? 1 : 0
- dst.y = (src0.y != src1.y) ? 1 : 0
- dst.z = (src0.z != src1.z) ? 1 : 0
- dst.w = (src0.w != src1.w) ? 1 : 0
-
-
-STR - Set On True
-
-.. math::
-
- dst.x = 1
- dst.y = 1
- dst.z = 1
- dst.w = 1
-
-
-TEX - Texture Lookup
-
- TBD
-
-
-TXD - Texture Lookup with Derivatives
-
- TBD
-
-
-TXP - Projective Texture Lookup
-
- TBD
-
-
-UP2H - Unpack Two 16-Bit Floats
-
- TBD
-
- Considered for removal.
-
-UP2US - Unpack Two Unsigned 16-Bit Scalars
-
- TBD
-
- Considered for removal.
-
-UP4B - Unpack Four Signed 8-Bit Values
-
- TBD
-
- Considered for removal.
-
-UP4UB - Unpack Four Unsigned 8-Bit Scalars
-
- TBD
-
- Considered for removal.
-
-X2D - 2D Coordinate Transformation
-
-.. math::
-
- dst.x = src0.x + src1.x \times src2.x + src1.y \times src2.y
- dst.y = src0.y + src1.x \times src2.z + src1.y \times src2.w
- dst.z = src0.x + src1.x \times src2.x + src1.y \times src2.y
- dst.w = src0.y + src1.x \times src2.z + src1.y \times src2.w
-
-Considered for removal.
-
-
-From GL_NV_vertex_program2
-^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-
-ARA - Address Register Add
-
- TBD
-
- Considered for removal.
-
-ARR - Address Register Load With Round
-
-.. math::
-
- dst.x = round(src.x)
-
- dst.y = round(src.y)
-
- dst.z = round(src.z)
-
- dst.w = round(src.w)
-
-
-BRA - Branch
-
- pc = target
-
- Considered for removal.
-
-CAL - Subroutine Call
-
- push(pc)
- pc = target
-
-
-RET - Subroutine Call Return
-
- pc = pop()
-
- Potential restrictions:
- \times Only occurs at end of function.
-
-SSG - Set Sign
-
-.. math::
-
- dst.x = (src.x > 0) ? 1 : (src.x < 0) ? -1 : 0
-
- dst.y = (src.y > 0) ? 1 : (src.y < 0) ? -1 : 0
-
- dst.z = (src.z > 0) ? 1 : (src.z < 0) ? -1 : 0
-
- dst.w = (src.w > 0) ? 1 : (src.w < 0) ? -1 : 0
-
-
-CMP - Compare
-
-.. math::
-
- dst.x = (src0.x < 0) ? src1.x : src2.x
-
- dst.y = (src0.y < 0) ? src1.y : src2.y
-
- dst.z = (src0.z < 0) ? src1.z : src2.z
-
- dst.w = (src0.w < 0) ? src1.w : src2.w
-
-
-KIL - Conditional Discard
-
-.. math::
-
- if (src.x < 0 || src.y < 0 || src.z < 0 || src.w < 0)
- discard
- endif
-
-
-SCS - Sine Cosine
-
-.. math::
-
- dst.x = \cos{src.x}
-
- dst.y = \sin{src.x}
-
- dst.z = 0
-
- dst.y = 1
-
-
-TXB - Texture Lookup With Bias
-
- TBD
-
-
-NRM - 3-component Vector Normalise
-
-.. math::
-
- dst.x = src.x / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
-
- dst.y = src.y / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
-
- dst.z = src.z / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
-
- dst.w = 1
-
-
-DIV - Divide
-
-.. math::
-
- dst.x = \frac{src0.x}{src1.x}
-
- dst.y = \frac{src0.y}{src1.y}
-
- dst.z = \frac{src0.z}{src1.z}
-
- dst.w = \frac{src0.w}{src1.w}
-
-
-DP2 - 2-component Dot Product
-
-.. math::
-
- dst.x = src0.x \times src1.x + src0.y \times src1.y
-
- dst.y = src0.x \times src1.x + src0.y \times src1.y
-
- dst.z = src0.x \times src1.x + src0.y \times src1.y
-
- dst.w = src0.x \times src1.x + src0.y \times src1.y
-
-
-TXL - Texture Lookup With LOD
-
- TBD
-
-
-BRK - Break
-
- TBD
-
-
-IF - If
-
- TBD
-
-
-BGNFOR - Begin a For-Loop
-
- dst.x = floor(src.x)
- dst.y = floor(src.y)
- dst.z = floor(src.z)
-
- if (dst.y <= 0)
- pc = [matching ENDFOR] + 1
- endif
-
- Note: The destination must be a loop register.
- The source must be a constant register.
-
- Considered for cleanup / removal.
-
-
-REP - Repeat
-
- TBD
-
-
-ELSE - Else
-
- TBD
-
-
-ENDIF - End If
-
- TBD
-
-
-ENDFOR - End a For-Loop
-
- dst.x = dst.x + dst.z
- dst.y = dst.y - 1.0
-
- if (dst.y > 0)
- pc = [matching BGNFOR instruction] + 1
- endif
-
- Note: The destination must be a loop register.
-
- Considered for cleanup / removal.
-
-ENDREP - End Repeat
-
- TBD
-
-
-PUSHA - Push Address Register On Stack
-
- push(src.x)
- push(src.y)
- push(src.z)
- push(src.w)
-
- Considered for cleanup / removal.
-
-POPA - Pop Address Register From Stack
-
- dst.w = pop()
- dst.z = pop()
- dst.y = pop()
- dst.x = pop()
-
- Considered for cleanup / removal.
-
-
-From GL_NV_gpu_program4
-^^^^^^^^^^^^^^^^^^^^^^^^
-
-Support for these opcodes indicated by a special pipe capability bit (TBD).
-
-CEIL - Ceiling
-
-.. math::
-
- dst.x = \lceil src.x\rceil
-
- dst.y = \lceil src.y\rceil
-
- dst.z = \lceil src.z\rceil
-
- dst.w = \lceil src.w\rceil
-
-
-I2F - Integer To Float
-
-.. math::
-
- dst.x = (float) src.x
-
- dst.y = (float) src.y
-
- dst.z = (float) src.z
-
- dst.w = (float) src.w
-
-
-NOT - Bitwise Not
-
-.. math::
-
- dst.x = ~src.x
-
- dst.y = ~src.y
-
- dst.z = ~src.z
-
- dst.w = ~src.w
-
-
-TRUNC - Truncate
-
-XXX how is this different from floor?
-
-.. math::
-
- dst.x = trunc(src.x)
-
- dst.y = trunc(src.y)
-
- dst.z = trunc(src.z)
-
- dst.w = trunc(src.w)
-
-
-SHL - Shift Left
-
-.. math::
-
- dst.x = src0.x << src1.x
-
- dst.y = src0.y << src1.x
-
- dst.z = src0.z << src1.x
-
- dst.w = src0.w << src1.x
-
-
-SHR - Shift Right
-
-.. math::
-
- dst.x = src0.x >> src1.x
-
- dst.y = src0.y >> src1.x
-
- dst.z = src0.z >> src1.x
-
- dst.w = src0.w >> src1.x
-
-
-AND - Bitwise And
-
-.. math::
-
- dst.x = src0.x & src1.x
-
- dst.y = src0.y & src1.y
-
- dst.z = src0.z & src1.z
-
- dst.w = src0.w & src1.w
-
-
-OR - Bitwise Or
-
-.. math::
-
- dst.x = src0.x | src1.x
-
- dst.y = src0.y | src1.y
-
- dst.z = src0.z | src1.z
-
- dst.w = src0.w | src1.w
-
-
-MOD - Modulus
-
-.. math::
-
- dst.x = src0.x \bmod src1.x
-
- dst.y = src0.y \bmod src1.y
-
- dst.z = src0.z \bmod src1.z
-
- dst.w = src0.w \bmod src1.w
-
-
-XOR - Bitwise Xor
-
-.. math::
-
- dst.x = src0.x ^ src1.x
-
- dst.y = src0.y ^ src1.y
-
- dst.z = src0.z ^ src1.z
-
- dst.w = src0.w ^ src1.w
-
-
-SAD - Sum Of Absolute Differences
-
-.. math::
-
- dst.x = |src0.x - src1.x| + src2.x
-
- dst.y = |src0.y - src1.y| + src2.y
-
- dst.z = |src0.z - src1.z| + src2.z
-
- dst.w = |src0.w - src1.w| + src2.w
-
-
-TXF - Texel Fetch
-
- TBD
-
-
-TXQ - Texture Size Query
-
- TBD
-
-
-CONT - Continue
-
- TBD
-
-
-From GL_NV_geometry_program4
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-
-EMIT - Emit
-
- TBD
-
-
-ENDPRIM - End Primitive
-
- TBD
-
-
-From GLSL
-^^^^^^^^^^
-
-
-BGNLOOP - Begin a Loop
-
- TBD
-
-
-BGNSUB - Begin Subroutine
-
- TBD
-
-
-ENDLOOP - End a Loop
-
- TBD
-
-
-ENDSUB - End Subroutine
-
- TBD
-
-
-
-NOP - No Operation
-
- Do nothing.
-
-NRM4 - 4-component Vector Normalise
-
-.. math::
-
- dst.x = \frac{src.x}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
- dst.y = \frac{src.y}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
- dst.z = \frac{src.z}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
- dst.w = \frac{src.w}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
-
-ps_2_x
-^^^^^^^^^^^^
-
-
-CALLNZ - Subroutine Call If Not Zero
-
- TBD
-
-
-IFC - If
-
- TBD
-
-
-BREAKC - Break Conditional
-
- TBD
-
-
-Explanation of symbols used
-------------------------------
-
-
-Functions
-^^^^^^^^^^^^^^
-
-
- :math:`|x|` Absolute value of `x`.
-
- :math:`\lceil x \rceil` Ceiling of `x`.
-
- clamp(x,y,z) Clamp x between y and z.
- (x < y) ? y : (x > z) ? z : x
-
- :math:`\lfloor x\rfloor` Floor of `x`.
-
- :math:`\log_2{x}` Logarithm of `x`, base 2.
-
- max(x,y) Maximum of x and y.
- (x > y) ? x : y
-
- min(x,y) Minimum of x and y.
- (x < y) ? x : y
-
- partialx(x) Derivative of x relative to fragment's X.
-
- partialy(x) Derivative of x relative to fragment's Y.
-
- pop() Pop from stack.
-
- :math:`x^y` `x` to the power `y`.
-
- push(x) Push x on stack.
-
- round(x) Round x.
-
- trunc(x) Truncate x.
-
-
-Keywords
-^^^^^^^^^^^^^
-
-
- discard Discard fragment.
-
- dst First destination register.
-
- dst0 First destination register.
-
- pc Program counter.
-
- src First source register.
-
- src0 First source register.
-
- src1 Second source register.
-
- src2 Third source register.
-
- target Label of target instruction.
-
-
-Other tokens
----------------
-
-
-Declaration Semantic
-^^^^^^^^^^^^^^^^^^^^^^^^
-
-
- Follows Declaration token if Semantic bit is set.
-
- Since its purpose is to link a shader with other stages of the pipeline,
- it is valid to follow only those Declaration tokens that declare a register
- either in INPUT or OUTPUT file.
-
- SemanticName field contains the semantic name of the register being declared.
- There is no default value.
-
- SemanticIndex is an optional subscript that can be used to distinguish
- different register declarations with the same semantic name. The default value
- is 0.
-
- The meanings of the individual semantic names are explained in the following
- sections.
-
-TGSI_SEMANTIC_POSITION
-""""""""""""""""""""""
-
-Position, sometimes known as HPOS or WPOS for historical reasons, is the
-location of the vertex in space, in ``(x, y, z, w)`` format. ``x``, ``y``, and ``z``
-are the Cartesian coordinates, and ``w`` is the homogenous coordinate and used
-for the perspective divide, if enabled.
-
-As a vertex shader output, position should be scaled to the viewport. When
-used in fragment shaders, position will ---
-
-XXX --- wait a minute. Should position be in [0,1] for x and y?
-
-XXX additionally, is there a way to configure the perspective divide? it's
-accelerated on most chipsets AFAIK...
-
-Position, if not specified, usually defaults to ``(0, 0, 0, 1)``, and can
-be partially specified as ``(x, y, 0, 1)`` or ``(x, y, z, 1)``.
-
-XXX usually? can we solidify that?
-
-TGSI_SEMANTIC_COLOR
-"""""""""""""""""""
-
-Colors are used to, well, color the primitives. Colors are always in
-``(r, g, b, a)`` format.
-
-If alpha is not specified, it defaults to 1.
-
-TGSI_SEMANTIC_BCOLOR
-""""""""""""""""""""
-
-Back-facing colors are only used for back-facing polygons, and are only valid
-in vertex shader outputs. After rasterization, all polygons are front-facing
-and COLOR and BCOLOR end up occupying the same slots in the fragment, so
-all BCOLORs effectively become regular COLORs in the fragment shader.
-
-TGSI_SEMANTIC_FOG
-"""""""""""""""""
-
-The fog coordinate historically has been used to replace the depth coordinate
-for generation of fog in dedicated fog blocks. Gallium, however, does not use
-dedicated fog acceleration, placing it entirely in the fragment shader
-instead.
-
-The fog coordinate should be written in ``(f, 0, 0, 1)`` format. Only the first
-component matters when writing from the vertex shader; the driver will ensure
-that the coordinate is in this format when used as a fragment shader input.
-
-TGSI_SEMANTIC_PSIZE
-"""""""""""""""""""
-
-PSIZE, or point size, is used to specify point sizes per-vertex. It should
-be in ``(p, n, x, f)`` format, where ``p`` is the point size, ``n`` is the minimum
-size, ``x`` is the maximum size, and ``f`` is the fade threshold.
-
-XXX this is arb_vp. is this what we actually do? should double-check...
-
-When using this semantic, be sure to set the appropriate state in the
-:ref:`rasterizer` first.
-
-TGSI_SEMANTIC_GENERIC
-"""""""""""""""""""""
-
-Generic semantics are nearly always used for texture coordinate attributes,
-in ``(s, t, r, q)`` format. ``t`` and ``r`` may be unused for certain kinds
-of lookups, and ``q`` is the level-of-detail bias for biased sampling.
-
-These attributes are called "generic" because they may be used for anything
-else, including parameters, texture generation information, or anything that
-can be stored inside a four-component vector.
-
-TGSI_SEMANTIC_NORMAL
-""""""""""""""""""""
-
-XXX no clue.
-
-TGSI_SEMANTIC_FACE
-""""""""""""""""""
-
-FACE is the facing bit, to store the facing information for the fragment
-shader. ``(f, 0, 0, 1)`` is the format. The first component will be positive
-when the fragment is front-facing, and negative when the component is
-back-facing.
-
-TGSI_SEMANTIC_EDGEFLAG
-""""""""""""""""""""""
-
-XXX no clue
+++ /dev/null
-/**
- * Sphinx stylesheet -- basic theme
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-/* -- main layout ----------------------------------------------------------- */
-
-div.clearer {
- clear: both;
-}
-
-/* -- relbar ---------------------------------------------------------------- */
-
-div.related {
- width: 100%;
- font-size: 90%;
-}
-
-div.related h3 {
- display: none;
-}
-
-div.related ul {
- margin: 0;
- padding: 0 0 0 10px;
- list-style: none;
-}
-
-div.related li {
- display: inline;
-}
-
-div.related li.right {
- float: right;
- margin-right: 5px;
-}
-
-/* -- sidebar --------------------------------------------------------------- */
-
-div.sphinxsidebarwrapper {
- padding: 10px 5px 0 10px;
-}
-
-div.sphinxsidebar {
- float: left;
- width: 230px;
- margin-left: -100%;
- font-size: 90%;
-}
-
-div.sphinxsidebar ul {
- list-style: none;
-}
-
-div.sphinxsidebar ul ul,
-div.sphinxsidebar ul.want-points {
- margin-left: 20px;
- list-style: square;
-}
-
-div.sphinxsidebar ul ul {
- margin-top: 0;
- margin-bottom: 0;
-}
-
-div.sphinxsidebar form {
- margin-top: 10px;
-}
-
-div.sphinxsidebar input {
- border: 1px solid #98dbcc;
- font-family: sans-serif;
- font-size: 1em;
-}
-
-img {
- border: 0;
-}
-
-/* -- search page ----------------------------------------------------------- */
-
-ul.search {
- margin: 10px 0 0 20px;
- padding: 0;
-}
-
-ul.search li {
- padding: 5px 0 5px 20px;
- background-image: url(file.png);
- background-repeat: no-repeat;
- background-position: 0 7px;
-}
-
-ul.search li a {
- font-weight: bold;
-}
-
-ul.search li div.context {
- color: #888;
- margin: 2px 0 0 30px;
- text-align: left;
-}
-
-ul.keywordmatches li.goodmatch a {
- font-weight: bold;
-}
-
-/* -- index page ------------------------------------------------------------ */
-
-table.contentstable {
- width: 90%;
-}
-
-table.contentstable p.biglink {
- line-height: 150%;
-}
-
-a.biglink {
- font-size: 1.3em;
-}
-
-span.linkdescr {
- font-style: italic;
- padding-top: 5px;
- font-size: 90%;
-}
-
-/* -- general index --------------------------------------------------------- */
-
-table.indextable td {
- text-align: left;
- vertical-align: top;
-}
-
-table.indextable dl, table.indextable dd {
- margin-top: 0;
- margin-bottom: 0;
-}
-
-table.indextable tr.pcap {
- height: 10px;
-}
-
-table.indextable tr.cap {
- margin-top: 10px;
- background-color: #f2f2f2;
-}
-
-img.toggler {
- margin-right: 3px;
- margin-top: 3px;
- cursor: pointer;
-}
-
-/* -- general body styles --------------------------------------------------- */
-
-a.headerlink {
- visibility: hidden;
-}
-
-h1:hover > a.headerlink,
-h2:hover > a.headerlink,
-h3:hover > a.headerlink,
-h4:hover > a.headerlink,
-h5:hover > a.headerlink,
-h6:hover > a.headerlink,
-dt:hover > a.headerlink {
- visibility: visible;
-}
-
-div.body p.caption {
- text-align: inherit;
-}
-
-div.body td {
- text-align: left;
-}
-
-.field-list ul {
- padding-left: 1em;
-}
-
-.first {
- margin-top: 0 !important;
-}
-
-p.rubric {
- margin-top: 30px;
- font-weight: bold;
-}
-
-/* -- sidebars -------------------------------------------------------------- */
-
-div.sidebar {
- margin: 0 0 0.5em 1em;
- border: 1px solid #ddb;
- padding: 7px 7px 0 7px;
- background-color: #ffe;
- width: 40%;
- float: right;
-}
-
-p.sidebar-title {
- font-weight: bold;
-}
-
-/* -- topics ---------------------------------------------------------------- */
-
-div.topic {
- border: 1px solid #ccc;
- padding: 7px 7px 0 7px;
- margin: 10px 0 10px 0;
-}
-
-p.topic-title {
- font-size: 1.1em;
- font-weight: bold;
- margin-top: 10px;
-}
-
-/* -- admonitions ----------------------------------------------------------- */
-
-div.admonition {
- margin-top: 10px;
- margin-bottom: 10px;
- padding: 7px;
-}
-
-div.admonition dt {
- font-weight: bold;
-}
-
-div.admonition dl {
- margin-bottom: 0;
-}
-
-p.admonition-title {
- margin: 0px 10px 5px 0px;
- font-weight: bold;
-}
-
-div.body p.centered {
- text-align: center;
- margin-top: 25px;
-}
-
-/* -- tables ---------------------------------------------------------------- */
-
-table.docutils {
- border: 0;
- border-collapse: collapse;
-}
-
-table.docutils td, table.docutils th {
- padding: 1px 8px 1px 0;
- border-top: 0;
- border-left: 0;
- border-right: 0;
- border-bottom: 1px solid #aaa;
-}
-
-table.field-list td, table.field-list th {
- border: 0 !important;
-}
-
-table.footnote td, table.footnote th {
- border: 0 !important;
-}
-
-th {
- text-align: left;
- padding-right: 5px;
-}
-
-/* -- other body styles ----------------------------------------------------- */
-
-dl {
- margin-bottom: 15px;
-}
-
-dd p {
- margin-top: 0px;
-}
-
-dd ul, dd table {
- margin-bottom: 10px;
-}
-
-dd {
- margin-top: 3px;
- margin-bottom: 10px;
- margin-left: 30px;
-}
-
-dt:target, .highlight {
- background-color: #fbe54e;
-}
-
-dl.glossary dt {
- font-weight: bold;
- font-size: 1.1em;
-}
-
-.field-list ul {
- margin: 0;
- padding-left: 1em;
-}
-
-.field-list p {
- margin: 0;
-}
-
-.refcount {
- color: #060;
-}
-
-.optional {
- font-size: 1.3em;
-}
-
-.versionmodified {
- font-style: italic;
-}
-
-.system-message {
- background-color: #fda;
- padding: 5px;
- border: 3px solid red;
-}
-
-.footnote:target {
- background-color: #ffa
-}
-
-/* -- code displays --------------------------------------------------------- */
-
-pre {
- overflow: auto;
-}
-
-td.linenos pre {
- padding: 5px 0px;
- border: 0;
- background-color: transparent;
- color: #aaa;
-}
-
-table.highlighttable {
- margin-left: 0.5em;
-}
-
-table.highlighttable td {
- padding: 0 0.5em 0 0.5em;
-}
-
-tt.descname {
- background-color: transparent;
- font-weight: bold;
- font-size: 1.2em;
-}
-
-tt.descclassname {
- background-color: transparent;
-}
-
-tt.xref, a tt {
- background-color: transparent;
- font-weight: bold;
-}
-
-h1 tt, h2 tt, h3 tt, h4 tt, h5 tt, h6 tt {
- background-color: transparent;
-}
-
-/* -- math display ---------------------------------------------------------- */
-
-img.math {
- vertical-align: middle;
-}
-
-div.body div.math p {
- text-align: center;
-}
-
-span.eqno {
- float: right;
-}
-
-/* -- printout stylesheet --------------------------------------------------- */
-
-@media print {
- div.document,
- div.documentwrapper,
- div.bodywrapper {
- margin: 0;
- width: 100%;
- }
-
- div.sphinxsidebar,
- div.related,
- div.footer,
- #top-link {
- display: none;
- }
-}
+++ /dev/null
-/**
- * Sphinx stylesheet -- default theme
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-@import url("basic.css");
-
-/* -- page layout ----------------------------------------------------------- */
-
-body {
- font-family: sans-serif;
- font-size: 100%;
- background-color: #11303d;
- color: #000;
- margin: 0;
- padding: 0;
-}
-
-div.document {
- background-color: #1c4e63;
-}
-
-div.documentwrapper {
- float: left;
- width: 100%;
-}
-
-div.bodywrapper {
- margin: 0 0 0 230px;
-}
-
-div.body {
- background-color: #ffffff;
- color: #000000;
- padding: 0 20px 30px 20px;
-}
-
-div.footer {
- color: #ffffff;
- width: 100%;
- padding: 9px 0 9px 0;
- text-align: center;
- font-size: 75%;
-}
-
-div.footer a {
- color: #ffffff;
- text-decoration: underline;
-}
-
-div.related {
- background-color: #133f52;
- line-height: 30px;
- color: #ffffff;
-}
-
-div.related a {
- color: #ffffff;
-}
-
-div.sphinxsidebar {
-}
-
-div.sphinxsidebar h3 {
- font-family: 'Trebuchet MS', sans-serif;
- color: #ffffff;
- font-size: 1.4em;
- font-weight: normal;
- margin: 0;
- padding: 0;
-}
-
-div.sphinxsidebar h3 a {
- color: #ffffff;
-}
-
-div.sphinxsidebar h4 {
- font-family: 'Trebuchet MS', sans-serif;
- color: #ffffff;
- font-size: 1.3em;
- font-weight: normal;
- margin: 5px 0 0 0;
- padding: 0;
-}
-
-div.sphinxsidebar p {
- color: #ffffff;
-}
-
-div.sphinxsidebar p.topless {
- margin: 5px 10px 10px 10px;
-}
-
-div.sphinxsidebar ul {
- margin: 10px;
- padding: 0;
- color: #ffffff;
-}
-
-div.sphinxsidebar a {
- color: #98dbcc;
-}
-
-div.sphinxsidebar input {
- border: 1px solid #98dbcc;
- font-family: sans-serif;
- font-size: 1em;
-}
-
-/* -- body styles ----------------------------------------------------------- */
-
-a {
- color: #355f7c;
- text-decoration: none;
-}
-
-a:hover {
- text-decoration: underline;
-}
-
-div.body p, div.body dd, div.body li {
- text-align: justify;
- line-height: 130%;
-}
-
-div.body h1,
-div.body h2,
-div.body h3,
-div.body h4,
-div.body h5,
-div.body h6 {
- font-family: 'Trebuchet MS', sans-serif;
- background-color: #f2f2f2;
- font-weight: normal;
- color: #20435c;
- border-bottom: 1px solid #ccc;
- margin: 20px -20px 10px -20px;
- padding: 3px 0 3px 10px;
-}
-
-div.body h1 { margin-top: 0; font-size: 200%; }
-div.body h2 { font-size: 160%; }
-div.body h3 { font-size: 140%; }
-div.body h4 { font-size: 120%; }
-div.body h5 { font-size: 110%; }
-div.body h6 { font-size: 100%; }
-
-a.headerlink {
- color: #c60f0f;
- font-size: 0.8em;
- padding: 0 4px 0 4px;
- text-decoration: none;
-}
-
-a.headerlink:hover {
- background-color: #c60f0f;
- color: white;
-}
-
-div.body p, div.body dd, div.body li {
- text-align: justify;
- line-height: 130%;
-}
-
-div.admonition p.admonition-title + p {
- display: inline;
-}
-
-div.note {
- background-color: #eee;
- border: 1px solid #ccc;
-}
-
-div.seealso {
- background-color: #ffc;
- border: 1px solid #ff6;
-}
-
-div.topic {
- background-color: #eee;
-}
-
-div.warning {
- background-color: #ffe4e4;
- border: 1px solid #f66;
-}
-
-p.admonition-title {
- display: inline;
-}
-
-p.admonition-title:after {
- content: ":";
-}
-
-pre {
- padding: 5px;
- background-color: #eeffcc;
- color: #333333;
- line-height: 120%;
- border: 1px solid #ac9;
- border-left: none;
- border-right: none;
-}
-
-tt {
- background-color: #ecf0f3;
- padding: 0 1px 0 1px;
- font-size: 0.95em;
-}
\ No newline at end of file
+++ /dev/null
-/// XXX: make it cross browser
-
-/**
- * make the code below compatible with browsers without
- * an installed firebug like debugger
- */
-if (!window.console || !console.firebug) {
- var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
- "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];
- window.console = {};
- for (var i = 0; i < names.length; ++i)
- window.console[names[i]] = function() {}
-}
-
-/**
- * small helper function to urldecode strings
- */
-jQuery.urldecode = function(x) {
- return decodeURIComponent(x).replace(/\+/g, ' ');
-}
-
-/**
- * small helper function to urlencode strings
- */
-jQuery.urlencode = encodeURIComponent;
-
-/**
- * This function returns the parsed url parameters of the
- * current request. Multiple values per key are supported,
- * it will always return arrays of strings for the value parts.
- */
-jQuery.getQueryParameters = function(s) {
- if (typeof s == 'undefined')
- s = document.location.search;
- var parts = s.substr(s.indexOf('?') + 1).split('&');
- var result = {};
- for (var i = 0; i < parts.length; i++) {
- var tmp = parts[i].split('=', 2);
- var key = jQuery.urldecode(tmp[0]);
- var value = jQuery.urldecode(tmp[1]);
- if (key in result)
- result[key].push(value);
- else
- result[key] = [value];
- }
- return result;
-}
-
-/**
- * small function to check if an array contains
- * a given item.
- */
-jQuery.contains = function(arr, item) {
- for (var i = 0; i < arr.length; i++) {
- if (arr[i] == item)
- return true;
- }
- return false;
-}
-
-/**
- * highlight a given string on a jquery object by wrapping it in
- * span elements with the given class name.
- */
-jQuery.fn.highlightText = function(text, className) {
- function highlight(node) {
- if (node.nodeType == 3) {
- var val = node.nodeValue;
- var pos = val.toLowerCase().indexOf(text);
- if (pos >= 0 && !jQuery.className.has(node.parentNode, className)) {
- var span = document.createElement("span");
- span.className = className;
- span.appendChild(document.createTextNode(val.substr(pos, text.length)));
- node.parentNode.insertBefore(span, node.parentNode.insertBefore(
- document.createTextNode(val.substr(pos + text.length)),
- node.nextSibling));
- node.nodeValue = val.substr(0, pos);
- }
- }
- else if (!jQuery(node).is("button, select, textarea")) {
- jQuery.each(node.childNodes, function() {
- highlight(this)
- });
- }
- }
- return this.each(function() {
- highlight(this);
- });
-}
-
-/**
- * Small JavaScript module for the documentation.
- */
-var Documentation = {
-
- init : function() {
- this.fixFirefoxAnchorBug();
- this.highlightSearchWords();
- this.initModIndex();
- },
-
- /**
- * i18n support
- */
- TRANSLATIONS : {},
- PLURAL_EXPR : function(n) { return n == 1 ? 0 : 1; },
- LOCALE : 'unknown',
-
- // gettext and ngettext don't access this so that the functions
- // can savely bound to a different name (_ = Documentation.gettext)
- gettext : function(string) {
- var translated = Documentation.TRANSLATIONS[string];
- if (typeof translated == 'undefined')
- return string;
- return (typeof translated == 'string') ? translated : translated[0];
- },
-
- ngettext : function(singular, plural, n) {
- var translated = Documentation.TRANSLATIONS[singular];
- if (typeof translated == 'undefined')
- return (n == 1) ? singular : plural;
- return translated[Documentation.PLURALEXPR(n)];
- },
-
- addTranslations : function(catalog) {
- for (var key in catalog.messages)
- this.TRANSLATIONS[key] = catalog.messages[key];
- this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
- this.LOCALE = catalog.locale;
- },
-
- /**
- * add context elements like header anchor links
- */
- addContextElements : function() {
- $('div[id] > :header:first').each(function() {
- $('<a class="headerlink">\u00B6</a>').
- attr('href', '#' + this.id).
- attr('title', _('Permalink to this headline')).
- appendTo(this);
- });
- $('dt[id]').each(function() {
- $('<a class="headerlink">\u00B6</a>').
- attr('href', '#' + this.id).
- attr('title', _('Permalink to this definition')).
- appendTo(this);
- });
- },
-
- /**
- * workaround a firefox stupidity
- */
- fixFirefoxAnchorBug : function() {
- if (document.location.hash && $.browser.mozilla)
- window.setTimeout(function() {
- document.location.href += '';
- }, 10);
- },
-
- /**
- * highlight the search words provided in the url in the text
- */
- highlightSearchWords : function() {
- var params = $.getQueryParameters();
- var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
- if (terms.length) {
- var body = $('div.body');
- window.setTimeout(function() {
- $.each(terms, function() {
- body.highlightText(this.toLowerCase(), 'highlight');
- });
- }, 10);
- $('<li class="highlight-link"><a href="javascript:Documentation.' +
- 'hideSearchWords()">' + _('Hide Search Matches') + '</a></li>')
- .appendTo($('.sidebar .this-page-menu'));
- }
- },
-
- /**
- * init the modindex toggle buttons
- */
- initModIndex : function() {
- var togglers = $('img.toggler').click(function() {
- var src = $(this).attr('src');
- var idnum = $(this).attr('id').substr(7);
- console.log($('tr.cg-' + idnum).toggle());
- if (src.substr(-9) == 'minus.png')
- $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
- else
- $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
- }).css('display', '');
- if (DOCUMENTATION_OPTIONS.COLLAPSE_MODINDEX) {
- togglers.click();
- }
- },
-
- /**
- * helper function to hide the search marks again
- */
- hideSearchWords : function() {
- $('.sidebar .this-page-menu li.highlight-link').fadeOut(300);
- $('span.highlight').removeClass('highlight');
- },
-
- /**
- * make the url absolute
- */
- makeURL : function(relativeURL) {
- return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
- },
-
- /**
- * get the current relative url
- */
- getCurrentURL : function() {
- var path = document.location.pathname;
- var parts = path.split(/\//);
- $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
- if (this == '..')
- parts.pop();
- });
- var url = parts.join('/');
- return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
- }
-};
-
-// quick alias for translations
-_ = Documentation.gettext;
-
-$(document).ready(function() {
- Documentation.init();
-});
+++ /dev/null
-/*
- * jQuery 1.2.6 - New Wave Javascript
- *
- * Copyright (c) 2008 John Resig (jquery.com)
- * Dual licensed under the MIT (MIT-LICENSE.txt)
- * and GPL (GPL-LICENSE.txt) licenses.
- *
- * $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $
- * $Rev: 5685 $
- */
-(function(){var _jQuery=window.jQuery,_$=window.$;var jQuery=window.jQuery=window.$=function(selector,context){return new jQuery.fn.init(selector,context);};var quickExpr=/^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/,isSimple=/^.[^:#\[\.]*$/,undefined;jQuery.fn=jQuery.prototype={init:function(selector,context){selector=selector||document;if(selector.nodeType){this[0]=selector;this.length=1;return this;}if(typeof selector=="string"){var match=quickExpr.exec(selector);if(match&&(match[1]||!context)){if(match[1])selector=jQuery.clean([match[1]],context);else{var elem=document.getElementById(match[3]);if(elem){if(elem.id!=match[3])return jQuery().find(selector);return jQuery(elem);}selector=[];}}else
-return jQuery(context).find(selector);}else if(jQuery.isFunction(selector))return jQuery(document)[jQuery.fn.ready?"ready":"load"](selector);return this.setArray(jQuery.makeArray(selector));},jquery:"1.2.6",size:function(){return this.length;},length:0,get:function(num){return num==undefined?jQuery.makeArray(this):this[num];},pushStack:function(elems){var ret=jQuery(elems);ret.prevObject=this;return ret;},setArray:function(elems){this.length=0;Array.prototype.push.apply(this,elems);return this;},each:function(callback,args){return jQuery.each(this,callback,args);},index:function(elem){var ret=-1;return jQuery.inArray(elem&&elem.jquery?elem[0]:elem,this);},attr:function(name,value,type){var options=name;if(name.constructor==String)if(value===undefined)return this[0]&&jQuery[type||"attr"](this[0],name);else{options={};options[name]=value;}return this.each(function(i){for(name in options)jQuery.attr(type?this.style:this,name,jQuery.prop(this,options[name],type,i,name));});},css:function(key,value){if((key=='width'||key=='height')&&parseFloat(value)<0)value=undefined;return this.attr(key,value,"curCSS");},text:function(text){if(typeof text!="object"&&text!=null)return this.empty().append((this[0]&&this[0].ownerDocument||document).createTextNode(text));var ret="";jQuery.each(text||this,function(){jQuery.each(this.childNodes,function(){if(this.nodeType!=8)ret+=this.nodeType!=1?this.nodeValue:jQuery.fn.text([this]);});});return ret;},wrapAll:function(html){if(this[0])jQuery(html,this[0].ownerDocument).clone().insertBefore(this[0]).map(function(){var elem=this;while(elem.firstChild)elem=elem.firstChild;return elem;}).append(this);return this;},wrapInner:function(html){return this.each(function(){jQuery(this).contents().wrapAll(html);});},wrap:function(html){return this.each(function(){jQuery(this).wrapAll(html);});},append:function(){return this.domManip(arguments,true,false,function(elem){if(this.nodeType==1)this.appendChild(elem);});},prepend:function(){return this.domManip(arguments,true,true,function(elem){if(this.nodeType==1)this.insertBefore(elem,this.firstChild);});},before:function(){return this.domManip(arguments,false,false,function(elem){this.parentNode.insertBefore(elem,this);});},after:function(){return this.domManip(arguments,false,true,function(elem){this.parentNode.insertBefore(elem,this.nextSibling);});},end:function(){return this.prevObject||jQuery([]);},find:function(selector){var elems=jQuery.map(this,function(elem){return jQuery.find(selector,elem);});return this.pushStack(/[^+>] [^+>]/.test(selector)||selector.indexOf("..")>-1?jQuery.unique(elems):elems);},clone:function(events){var ret=this.map(function(){if(jQuery.browser.msie&&!jQuery.isXMLDoc(this)){var clone=this.cloneNode(true),container=document.createElement("div");container.appendChild(clone);return jQuery.clean([container.innerHTML])[0];}else
-return this.cloneNode(true);});var clone=ret.find("*").andSelf().each(function(){if(this[expando]!=undefined)this[expando]=null;});if(events===true)this.find("*").andSelf().each(function(i){if(this.nodeType==3)return;var events=jQuery.data(this,"events");for(var type in events)for(var handler in events[type])jQuery.event.add(clone[i],type,events[type][handler],events[type][handler].data);});return ret;},filter:function(selector){return this.pushStack(jQuery.isFunction(selector)&&jQuery.grep(this,function(elem,i){return selector.call(elem,i);})||jQuery.multiFilter(selector,this));},not:function(selector){if(selector.constructor==String)if(isSimple.test(selector))return this.pushStack(jQuery.multiFilter(selector,this,true));else
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-e.custom(start,val,"");}});return true;});},queue:function(type,fn){if(jQuery.isFunction(type)||(type&&type.constructor==Array)){fn=type;type="fx";}if(!type||(typeof type=="string"&&!fn))return queue(this[0],type);return this.each(function(){if(fn.constructor==Array)queue(this,type,fn);else{queue(this,type).push(fn);if(queue(this,type).length==1)fn.call(this);}});},stop:function(clearQueue,gotoEnd){var timers=jQuery.timers;if(clearQueue)this.queue([]);this.each(function(){for(var i=timers.length-1;i>=0;i--)if(timers[i].elem==this){if(gotoEnd)timers[i](true);timers.splice(i,1);}});if(!gotoEnd)this.dequeue();return this;}});var queue=function(elem,type,array){if(elem){type=type||"fx";var q=jQuery.data(elem,type+"queue");if(!q||array)q=jQuery.data(elem,type+"queue",jQuery.makeArray(array));}return q;};jQuery.fn.dequeue=function(type){type=type||"fx";return this.each(function(){var q=queue(this,type);q.shift();if(q.length)q[0].call(this);});};jQuery.extend({speed:function(speed,easing,fn){var opt=speed&&speed.constructor==Object?speed:{complete:fn||!fn&&easing||jQuery.isFunction(speed)&&speed,duration:speed,easing:fn&&easing||easing&&easing.constructor!=Function&&easing};opt.duration=(opt.duration&&opt.duration.constructor==Number?opt.duration:jQuery.fx.speeds[opt.duration])||jQuery.fx.speeds.def;opt.old=opt.complete;opt.complete=function(){if(opt.queue!==false)jQuery(this).dequeue();if(jQuery.isFunction(opt.old))opt.old.call(this);};return opt;},easing:{linear:function(p,n,firstNum,diff){return firstNum+diff*p;},swing:function(p,n,firstNum,diff){return((-Math.cos(p*Math.PI)/2)+0.5)*diff+firstNum;}},timers:[],timerId:null,fx:function(elem,options,prop){this.options=options;this.elem=elem;this.prop=prop;if(!options.orig)options.orig={};}});jQuery.fx.prototype={update:function(){if(this.options.step)this.options.step.call(this.elem,this.now,this);(jQuery.fx.step[this.prop]||jQuery.fx.step._default)(this);if(this.prop=="height"||this.prop=="width")this.elem.style.display="block";},cur:function(force){if(this.elem[this.prop]!=null&&this.elem.style[this.prop]==null)return this.elem[this.prop];var r=parseFloat(jQuery.css(this.elem,this.prop,force));return r&&r>-10000?r:parseFloat(jQuery.curCSS(this.elem,this.prop))||0;},custom:function(from,to,unit){this.startTime=now();this.start=from;this.end=to;this.unit=unit||this.unit||"px";this.now=this.start;this.pos=this.state=0;this.update();var self=this;function t(gotoEnd){return self.step(gotoEnd);}t.elem=this.elem;jQuery.timers.push(t);if(jQuery.timerId==null){jQuery.timerId=setInterval(function(){var timers=jQuery.timers;for(var i=0;i<timers.length;i++)if(!timers[i]())timers.splice(i--,1);if(!timers.length){clearInterval(jQuery.timerId);jQuery.timerId=null;}},13);}},show:function(){this.options.orig[this.prop]=jQuery.attr(this.elem.style,this.prop);this.options.show=true;this.custom(0,this.cur());if(this.prop=="width"||this.prop=="height")this.elem.style[this.prop]="1px";jQuery(this.elem).show();},hide:function(){this.options.orig[this.prop]=jQuery.attr(this.elem.style,this.prop);this.options.hide=true;this.custom(this.cur(),0);},step:function(gotoEnd){var t=now();if(gotoEnd||t>this.options.duration+this.startTime){this.now=this.end;this.pos=this.state=1;this.update();this.options.curAnim[this.prop]=true;var done=true;for(var i in this.options.curAnim)if(this.options.curAnim[i]!==true)done=false;if(done){if(this.options.display!=null){this.elem.style.overflow=this.options.overflow;this.elem.style.display=this.options.display;if(jQuery.css(this.elem,"display")=="none")this.elem.style.display="block";}if(this.options.hide)this.elem.style.display="none";if(this.options.hide||this.options.show)for(var p in this.options.curAnim)jQuery.attr(this.elem.style,p,this.options.orig[p]);}if(done)this.options.complete.call(this.elem);return false;}else{var n=t-this.startTime;this.state=n/this.options.duration;this.pos=jQuery.easing[this.options.easing||(jQuery.easing.swing?"swing":"linear")](this.state,n,0,1,this.options.duration);this.now=this.start+((this.end-this.start)*this.pos);this.update();}return true;}};jQuery.extend(jQuery.fx,{speeds:{slow:600,fast:200,def:400},step:{scrollLeft:function(fx){fx.elem.scrollLeft=fx.now;},scrollTop:function(fx){fx.elem.scrollTop=fx.now;},opacity:function(fx){jQuery.attr(fx.elem.style,"opacity",fx.now);},_default:function(fx){fx.elem.style[fx.prop]=fx.now+fx.unit;}}});jQuery.fn.offset=function(){var left=0,top=0,elem=this[0],results;if(elem)with(jQuery.browser){var parent=elem.parentNode,offsetChild=elem,offsetParent=elem.offsetParent,doc=elem.ownerDocument,safari2=safari&&parseInt(version)<522&&!/adobeair/i.test(userAgent),css=jQuery.curCSS,fixed=css(elem,"position")=="fixed";if(elem.getBoundingClientRect){var box=elem.getBoundingClientRect();add(box.left+Math.max(doc.documentElement.scrollLeft,doc.body.scrollLeft),box.top+Math.max(doc.documentElement.scrollTop,doc.body.scrollTop));add(-doc.documentElement.clientLeft,-doc.documentElement.clientTop);}else{add(elem.offsetLeft,elem.offsetTop);while(offsetParent){add(offsetParent.offsetLeft,offsetParent.offsetTop);if(mozilla&&!/^t(able|d|h)$/i.test(offsetParent.tagName)||safari&&!safari2)border(offsetParent);if(!fixed&&css(offsetParent,"position")=="fixed")fixed=true;offsetChild=/^body$/i.test(offsetParent.tagName)?offsetChild:offsetParent;offsetParent=offsetParent.offsetParent;}while(parent&&parent.tagName&&!/^body|html$/i.test(parent.tagName)){if(!/^inline|table.*$/i.test(css(parent,"display")))add(-parent.scrollLeft,-parent.scrollTop);if(mozilla&&css(parent,"overflow")!="visible")border(parent);parent=parent.parentNode;}if((safari2&&(fixed||css(offsetChild,"position")=="absolute"))||(mozilla&&css(offsetChild,"position")!="absolute"))add(-doc.body.offsetLeft,-doc.body.offsetTop);if(fixed)add(Math.max(doc.documentElement.scrollLeft,doc.body.scrollLeft),Math.max(doc.documentElement.scrollTop,doc.body.scrollTop));}results={top:top,left:left};}function border(elem){add(jQuery.curCSS(elem,"borderLeftWidth",true),jQuery.curCSS(elem,"borderTopWidth",true));}function add(l,t){left+=parseInt(l,10)||0;top+=parseInt(t,10)||0;}return results;};jQuery.fn.extend({position:function(){var left=0,top=0,results;if(this[0]){var offsetParent=this.offsetParent(),offset=this.offset(),parentOffset=/^body|html$/i.test(offsetParent[0].tagName)?{top:0,left:0}:offsetParent.offset();offset.top-=num(this,'marginTop');offset.left-=num(this,'marginLeft');parentOffset.top+=num(offsetParent,'borderTopWidth');parentOffset.left+=num(offsetParent,'borderLeftWidth');results={top:offset.top-parentOffset.top,left:offset.left-parentOffset.left};}return results;},offsetParent:function(){var offsetParent=this[0].offsetParent;while(offsetParent&&(!/^body|html$/i.test(offsetParent.tagName)&&jQuery.css(offsetParent,'position')=='static'))offsetParent=offsetParent.offsetParent;return jQuery(offsetParent);}});jQuery.each(['Left','Top'],function(i,name){var method='scroll'+name;jQuery.fn[method]=function(val){if(!this[0])return;return val!=undefined?this.each(function(){this==window||this==document?window.scrollTo(!i?val:jQuery(window).scrollLeft(),i?val:jQuery(window).scrollTop()):this[method]=val;}):this[0]==window||this[0]==document?self[i?'pageYOffset':'pageXOffset']||jQuery.boxModel&&document.documentElement[method]||document.body[method]:this[0][method];};});jQuery.each(["Height","Width"],function(i,name){var tl=i?"Left":"Top",br=i?"Right":"Bottom";jQuery.fn["inner"+name]=function(){return this[name.toLowerCase()]()+num(this,"padding"+tl)+num(this,"padding"+br);};jQuery.fn["outer"+name]=function(margin){return this["inner"+name]()+num(this,"border"+tl+"Width")+num(this,"border"+br+"Width")+(margin?num(this,"margin"+tl)+num(this,"margin"+br):0);};});})();
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-.gi { color: #00A000 } /* Generic.Inserted */
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+++ /dev/null
-/**
- * helper function to return a node containing the
- * search summary for a given text. keywords is a list
- * of stemmed words, hlwords is the list of normal, unstemmed
- * words. the first one is used to find the occurance, the
- * latter for highlighting it.
- */
-
-jQuery.makeSearchSummary = function(text, keywords, hlwords) {
- var textLower = text.toLowerCase();
- var start = 0;
- $.each(keywords, function() {
- var i = textLower.indexOf(this.toLowerCase());
- if (i > -1)
- start = i;
- });
- start = Math.max(start - 120, 0);
- var excerpt = ((start > 0) ? '...' : '') +
- $.trim(text.substr(start, 240)) +
- ((start + 240 - text.length) ? '...' : '');
- var rv = $('<div class="context"></div>').text(excerpt);
- $.each(hlwords, function() {
- rv = rv.highlightText(this, 'highlight');
- });
- return rv;
-}
-
-/**
- * Porter Stemmer
- */
-var PorterStemmer = function() {
-
- var step2list = {
- ational: 'ate',
- tional: 'tion',
- enci: 'ence',
- anci: 'ance',
- izer: 'ize',
- bli: 'ble',
- alli: 'al',
- entli: 'ent',
- eli: 'e',
- ousli: 'ous',
- ization: 'ize',
- ation: 'ate',
- ator: 'ate',
- alism: 'al',
- iveness: 'ive',
- fulness: 'ful',
- ousness: 'ous',
- aliti: 'al',
- iviti: 'ive',
- biliti: 'ble',
- logi: 'log'
- };
-
- var step3list = {
- icate: 'ic',
- ative: '',
- alize: 'al',
- iciti: 'ic',
- ical: 'ic',
- ful: '',
- ness: ''
- };
-
- var c = "[^aeiou]"; // consonant
- var v = "[aeiouy]"; // vowel
- var C = c + "[^aeiouy]*"; // consonant sequence
- var V = v + "[aeiou]*"; // vowel sequence
-
- var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0
- var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1
- var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1
- var s_v = "^(" + C + ")?" + v; // vowel in stem
-
- this.stemWord = function (w) {
- var stem;
- var suffix;
- var firstch;
- var origword = w;
-
- if (w.length < 3)
- return w;
-
- var re;
- var re2;
- var re3;
- var re4;
-
- firstch = w.substr(0,1);
- if (firstch == "y")
- w = firstch.toUpperCase() + w.substr(1);
-
- // Step 1a
- re = /^(.+?)(ss|i)es$/;
- re2 = /^(.+?)([^s])s$/;
-
- if (re.test(w))
- w = w.replace(re,"$1$2");
- else if (re2.test(w))
- w = w.replace(re2,"$1$2");
-
- // Step 1b
- re = /^(.+?)eed$/;
- re2 = /^(.+?)(ed|ing)$/;
- if (re.test(w)) {
- var fp = re.exec(w);
- re = new RegExp(mgr0);
- if (re.test(fp[1])) {
- re = /.$/;
- w = w.replace(re,"");
- }
- }
- else if (re2.test(w)) {
- var fp = re2.exec(w);
- stem = fp[1];
- re2 = new RegExp(s_v);
- if (re2.test(stem)) {
- w = stem;
- re2 = /(at|bl|iz)$/;
- re3 = new RegExp("([^aeiouylsz])\\1$");
- re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
- if (re2.test(w))
- w = w + "e";
- else if (re3.test(w)) {
- re = /.$/;
- w = w.replace(re,"");
- }
- else if (re4.test(w))
- w = w + "e";
- }
- }
-
- // Step 1c
- re = /^(.+?)y$/;
- if (re.test(w)) {
- var fp = re.exec(w);
- stem = fp[1];
- re = new RegExp(s_v);
- if (re.test(stem))
- w = stem + "i";
- }
-
- // Step 2
- re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
- if (re.test(w)) {
- var fp = re.exec(w);
- stem = fp[1];
- suffix = fp[2];
- re = new RegExp(mgr0);
- if (re.test(stem))
- w = stem + step2list[suffix];
- }
-
- // Step 3
- re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
- if (re.test(w)) {
- var fp = re.exec(w);
- stem = fp[1];
- suffix = fp[2];
- re = new RegExp(mgr0);
- if (re.test(stem))
- w = stem + step3list[suffix];
- }
-
- // Step 4
- re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
- re2 = /^(.+?)(s|t)(ion)$/;
- if (re.test(w)) {
- var fp = re.exec(w);
- stem = fp[1];
- re = new RegExp(mgr1);
- if (re.test(stem))
- w = stem;
- }
- else if (re2.test(w)) {
- var fp = re2.exec(w);
- stem = fp[1] + fp[2];
- re2 = new RegExp(mgr1);
- if (re2.test(stem))
- w = stem;
- }
-
- // Step 5
- re = /^(.+?)e$/;
- if (re.test(w)) {
- var fp = re.exec(w);
- stem = fp[1];
- re = new RegExp(mgr1);
- re2 = new RegExp(meq1);
- re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
- if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
- w = stem;
- }
- re = /ll$/;
- re2 = new RegExp(mgr1);
- if (re.test(w) && re2.test(w)) {
- re = /.$/;
- w = w.replace(re,"");
- }
-
- // and turn initial Y back to y
- if (firstch == "y")
- w = firstch.toLowerCase() + w.substr(1);
- return w;
- }
-}
-
-
-/**
- * Search Module
- */
-var Search = {
-
- _index : null,
- _queued_query : null,
- _pulse_status : -1,
-
- init : function() {
- var params = $.getQueryParameters();
- if (params.q) {
- var query = params.q[0];
- $('input[name="q"]')[0].value = query;
- this.performSearch(query);
- }
- },
-
- /**
- * Sets the index
- */
- setIndex : function(index) {
- var q;
- this._index = index;
- if ((q = this._queued_query) !== null) {
- this._queued_query = null;
- Search.query(q);
- }
- },
-
- hasIndex : function() {
- return this._index !== null;
- },
-
- deferQuery : function(query) {
- this._queued_query = query;
- },
-
- stopPulse : function() {
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- <h3>Navigation</h3>
- <ul>
- <li class="right" style="margin-right: 10px">
- <a href="genindex.html" title="General Index"
- accesskey="I">index</a></li>
- <li class="right" >
- <a href="cso.html" title="CSO"
- accesskey="N">next</a> |</li>
- <li class="right" >
- <a href="screen.html" title="Screen"
- accesskey="P">previous</a> |</li>
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-
- <div class="document">
- <div class="documentwrapper">
- <div class="bodywrapper">
- <div class="body">
-
- <div class="section" id="context">
-<h1>Context<a class="headerlink" href="#context" title="Permalink to this headline">¶</a></h1>
-<p>The context object represents the purest, most directly accessible, abilities
-of the device’s 3D rendering pipeline.</p>
-<div class="section" id="methods">
-<h2>Methods<a class="headerlink" href="#methods" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="cso-state">
-<h3>CSO State<a class="headerlink" href="#cso-state" title="Permalink to this headline">¶</a></h3>
-<p>All CSO state is created, bound, and destroyed, with triplets of methods that
-all follow a specific naming scheme. For example, <tt class="docutils literal"><span class="pre">create_blend_state</span></tt>,
-<tt class="docutils literal"><span class="pre">bind_blend_state</span></tt>, and <tt class="docutils literal"><span class="pre">destroy_blend_state</span></tt>.</p>
-<p>CSO objects handled by the context object:</p>
-<ul class="simple">
-<li><a class="reference external" href="cso/blend.html#blend"><em>Blend</em></a>: <tt class="docutils literal"><span class="pre">*_blend_state</span></tt></li>
-<li><a class="reference external" href="cso/sampler.html#sampler"><em>Sampler</em></a>: These are special; they can be bound to either vertex or
-fragment samplers, and they are bound in groups.
-<tt class="docutils literal"><span class="pre">bind_fragment_sampler_states</span></tt>, <tt class="docutils literal"><span class="pre">bind_vertex_sampler_states</span></tt></li>
-<li><a class="reference external" href="cso/rasterizer.html#rasterizer"><em>Rasterizer</em></a>: <tt class="docutils literal"><span class="pre">*_rasterizer_state</span></tt></li>
-<li><a class="reference external" href="cso/dsa.html#depth-stencil-alpha"><em>Depth, Stencil, & Alpha</em></a>: <tt class="docutils literal"><span class="pre">*_depth_stencil_alpha_state</span></tt></li>
-<li><a class="reference external" href="cso/shader.html#shader"><em>Shader</em></a>: These have two sets of methods. <tt class="docutils literal"><span class="pre">*_fs_state</span></tt> is for
-fragment shaders, and <tt class="docutils literal"><span class="pre">*_vs_state</span></tt> is for vertex shaders.</li>
-</ul>
-</div>
-<div class="section" id="resource-binding-state">
-<h3>Resource Binding State<a class="headerlink" href="#resource-binding-state" title="Permalink to this headline">¶</a></h3>
-<p>This state describes how resources in various flavours (textures,
-buffers, surfaces) are bound to the driver.</p>
-<ul class="simple">
-<li><tt class="docutils literal"><span class="pre">set_constant_buffer</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_framebuffer_state</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_fragment_sampler_textures</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_vertex_sampler_textures</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_vertex_buffers</span></tt></li>
-</ul>
-</div>
-<div class="section" id="non-cso-state">
-<h3>Non-CSO State<a class="headerlink" href="#non-cso-state" title="Permalink to this headline">¶</a></h3>
-<p>These pieces of state are too small, variable, and/or trivial to have CSO
-objects. They all follow simple, one-method binding calls, e.g.
-<tt class="docutils literal"><span class="pre">set_edgeflags</span></tt>.</p>
-<ul class="simple">
-<li><tt class="docutils literal"><span class="pre">set_edgeflags</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_blend_color</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_clip_state</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_polygon_stipple</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_scissor_state</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_viewport_state</span></tt></li>
-<li><tt class="docutils literal"><span class="pre">set_vertex_elements</span></tt></li>
-</ul>
-</div>
-<div class="section" id="clearing">
-<h3>Clearing<a class="headerlink" href="#clearing" title="Permalink to this headline">¶</a></h3>
-<p><tt class="docutils literal"><span class="pre">clear</span></tt> initializes some or all of the surfaces currently bound to
-the framebuffer to particular RGBA, depth, or stencil values.</p>
-<p>Clear is one of the most difficult concepts to nail down to a single
-interface and it seems likely that we will want to add additional
-clear paths, for instance clearing surfaces not bound to the
-framebuffer, or read-modify-write clears such as depth-only or
-stencil-only clears of packed depth-stencil buffers.</p>
-</div>
-<div class="section" id="drawing">
-<h3>Drawing<a class="headerlink" href="#drawing" title="Permalink to this headline">¶</a></h3>
-<p><tt class="docutils literal"><span class="pre">draw_arrays</span></tt></p>
-<p><tt class="docutils literal"><span class="pre">draw_elements</span></tt></p>
-<p><tt class="docutils literal"><span class="pre">draw_range_elements</span></tt></p>
-</div>
-<div class="section" id="queries">
-<h3>Queries<a class="headerlink" href="#queries" title="Permalink to this headline">¶</a></h3>
-<p>Queries gather some statistic from the 3D pipeline over one or more
-draws. Queries may be nested, though no state tracker currently
-exercises this.</p>
-<p>Queries can be created with <tt class="docutils literal"><span class="pre">create_query</span></tt> and deleted with
-<tt class="docutils literal"><span class="pre">destroy_query</span></tt>. To enable a query, use <tt class="docutils literal"><span class="pre">begin_query</span></tt>, and when finished,
-use <tt class="docutils literal"><span class="pre">end_query</span></tt> to stop the query. Finally, <tt class="docutils literal"><span class="pre">get_query_result</span></tt> is used
-to retrieve the results.</p>
-</div>
-<div class="section" id="flushing">
-<h3>Flushing<a class="headerlink" href="#flushing" title="Permalink to this headline">¶</a></h3>
-<p><tt class="docutils literal"><span class="pre">flush</span></tt></p>
-</div>
-<div class="section" id="resource-busy-queries">
-<h3>Resource Busy Queries<a class="headerlink" href="#resource-busy-queries" title="Permalink to this headline">¶</a></h3>
-<p><tt class="docutils literal"><span class="pre">is_texture_referenced</span></tt></p>
-<p><tt class="docutils literal"><span class="pre">is_buffer_referenced</span></tt></p>
-</div>
-<div class="section" id="blitting">
-<h3>Blitting<a class="headerlink" href="#blitting" title="Permalink to this headline">¶</a></h3>
-<p>These methods emulate classic blitter controls. They are not guaranteed to be
-available; if they are set to NULL, then they are not present.</p>
-<p>These methods operate directly on <tt class="docutils literal"><span class="pre">pipe_surface</span></tt> objects, and stand
-apart from any 3D state in the context. Blitting functionality may be
-moved to a separate abstraction at some point in the future.</p>
-<p><tt class="docutils literal"><span class="pre">surface_fill</span></tt> performs a fill operation on a section of a surface.</p>
-<p><tt class="docutils literal"><span class="pre">surface_copy</span></tt> blits a region of a surface to a region of another surface,
-provided that both surfaces are the same format. The source and destination
-may be the same surface, and overlapping blits are permitted.</p>
-<p>The interfaces to these calls are likely to change to make it easier
-for a driver to batch multiple blits with the same source and
-destination.</p>
-</div>
-</div>
-</div>
-
-
- </div>
- </div>
- </div>
- <div class="sphinxsidebar">
- <div class="sphinxsidebarwrapper">
- <h3><a href="index.html">Table Of Contents</a></h3>
- <ul>
-<li><a class="reference external" href="">Context</a><ul>
-<li><a class="reference external" href="#methods">Methods</a><ul>
-<li><a class="reference external" href="#cso-state">CSO State</a></li>
-<li><a class="reference external" href="#resource-binding-state">Resource Binding State</a></li>
-<li><a class="reference external" href="#non-cso-state">Non-CSO State</a></li>
-<li><a class="reference external" href="#clearing">Clearing</a></li>
-<li><a class="reference external" href="#drawing">Drawing</a></li>
-<li><a class="reference external" href="#queries">Queries</a></li>
-<li><a class="reference external" href="#flushing">Flushing</a></li>
-<li><a class="reference external" href="#resource-busy-queries">Resource Busy Queries</a></li>
-<li><a class="reference external" href="#blitting">Blitting</a></li>
-</ul>
-</li>
-</ul>
-</li>
-</ul>
-
- <h4>Previous topic</h4>
- <p class="topless"><a href="screen.html"
- title="previous chapter">Screen</a></p>
- <h4>Next topic</h4>
- <p class="topless"><a href="cso.html"
- title="next chapter">CSO</a></p>
- <h3>This Page</h3>
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- <li><a href="_sources/context.txt"
- rel="nofollow">Show Source</a></li>
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-
- <div class="section" id="cso">
-<h1>CSO<a class="headerlink" href="#cso" title="Permalink to this headline">¶</a></h1>
-<p>CSO, Constant State Objects, are a core part of Gallium’s API.</p>
-<p>CSO work on the principle of reusable state; they are created by filling
-out a state object with the desired properties, then passing that object
-to a context. The context returns an opaque context-specific handle which
-can be bound at any time for the desired effect.</p>
-<ul>
-<li class="toctree-l1"><a class="reference external" href="cso/blend.html">Blend</a><ul>
-<li class="toctree-l2"><a class="reference external" href="cso/blend.html#members">Members</a></li>
-</ul>
-</li>
-<li class="toctree-l1"><a class="reference external" href="cso/dsa.html">Depth, Stencil, & Alpha</a><ul>
-<li class="toctree-l2"><a class="reference external" href="cso/dsa.html#depth-members">Depth Members</a></li>
-<li class="toctree-l2"><a class="reference external" href="cso/dsa.html#stencil-members">Stencil Members</a></li>
-<li class="toctree-l2"><a class="reference external" href="cso/dsa.html#alpha-members">Alpha Members</a></li>
-</ul>
-</li>
-<li class="toctree-l1"><a class="reference external" href="cso/rasterizer.html">Rasterizer</a><ul>
-<li class="toctree-l2"><a class="reference external" href="cso/rasterizer.html#members">Members</a></li>
-<li class="toctree-l2"><a class="reference external" href="cso/rasterizer.html#notes">Notes</a><ul>
-<li class="toctree-l3"><a class="reference external" href="cso/rasterizer.html#flatshade">flatshade</a></li>
-<li class="toctree-l3"><a class="reference external" href="cso/rasterizer.html#bypass-vs-clip-and-viewport">bypass_vs_clip_and_viewport</a></li>
-<li class="toctree-l3"><a class="reference external" href="cso/rasterizer.html#flatshade-first">flatshade_first</a></li>
-</ul>
-</li>
-</ul>
-</li>
-<li class="toctree-l1"><a class="reference external" href="cso/sampler.html">Sampler</a><ul>
-<li class="toctree-l2"><a class="reference external" href="cso/sampler.html#members">Members</a></li>
-</ul>
-</li>
-<li class="toctree-l1"><a class="reference external" href="cso/shader.html">Shader</a><ul>
-<li class="toctree-l2"><a class="reference external" href="cso/shader.html#members">Members</a></li>
-</ul>
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- <div class="section" id="blend">
-<span id="id1"></span><h1>Blend<a class="headerlink" href="#blend" title="Permalink to this headline">¶</a></h1>
-<p>This state controls blending of the final fragments into the target rendering
-buffers.</p>
-<p>XXX it is unresolved what behavior should result if blend_enable is off.</p>
-<div class="section" id="members">
-<h2>Members<a class="headerlink" href="#members" title="Permalink to this headline">¶</a></h2>
-<p>XXX undocumented members</p>
-</div>
-</div>
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- <div class="section" id="depth-stencil-alpha">
-<span id="id1"></span><h1>Depth, Stencil, & Alpha<a class="headerlink" href="#depth-stencil-alpha" title="Permalink to this headline">¶</a></h1>
-<p>These three states control the depth, stencil, and alpha tests, used to
-discard fragments that have passed through the fragment shader.</p>
-<p>Traditionally, these three tests have been clumped together in hardware, so
-they are all stored in one structure.</p>
-<p>During actual execution, the order of operations done on fragments is always:</p>
-<ul class="simple">
-<li>Stencil</li>
-<li>Depth</li>
-<li>Alpha</li>
-</ul>
-<div class="section" id="depth-members">
-<h2>Depth Members<a class="headerlink" href="#depth-members" title="Permalink to this headline">¶</a></h2>
-<dl class="docutils">
-<dt>enabled</dt>
-<dd>Whether the depth test is enabled.</dd>
-<dt>writemask</dt>
-<dd>Whether the depth buffer receives depth writes.</dd>
-<dt>func</dt>
-<dd>The depth test function. One of PIPE_FUNC.</dd>
-</dl>
-</div>
-<div class="section" id="stencil-members">
-<h2>Stencil Members<a class="headerlink" href="#stencil-members" title="Permalink to this headline">¶</a></h2>
-<p>XXX document valuemask, writemask</p>
-<dl class="docutils">
-<dt>enabled</dt>
-<dd>Whether the stencil test is enabled. For the second stencil, whether the
-two-sided stencil is enabled.</dd>
-<dt>func</dt>
-<dd>The stencil test function. One of PIPE_FUNC.</dd>
-<dt>ref_value</dt>
-<dd>Stencil test reference value; used for certain functions.</dd>
-<dt>fail_op</dt>
-<dd>The operation to carry out if the stencil test fails. One of
-PIPE_STENCIL_OP.</dd>
-<dt>zfail_op</dt>
-<dd>The operation to carry out if the stencil test passes but the depth test
-fails. One of PIPE_STENCIL_OP.</dd>
-<dt>zpass_op</dt>
-<dd>The operation to carry out if the stencil test and depth test both pass.
-One of PIPE_STENCIL_OP.</dd>
-</dl>
-</div>
-<div class="section" id="alpha-members">
-<h2>Alpha Members<a class="headerlink" href="#alpha-members" title="Permalink to this headline">¶</a></h2>
-<dl class="docutils">
-<dt>enabled</dt>
-<dd>Whether the alpha test is enabled.</dd>
-<dt>func</dt>
-<dd>The alpha test function. One of PIPE_FUNC.</dd>
-<dt>ref_value</dt>
-<dd>Alpha test reference value; used for certain functions.</dd>
-</dl>
-</div>
-</div>
-
-
- </div>
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-<li><a class="reference external" href="#depth-members">Depth Members</a></li>
-<li><a class="reference external" href="#stencil-members">Stencil Members</a></li>
-<li><a class="reference external" href="#alpha-members">Alpha Members</a></li>
-</ul>
-</li>
-</ul>
-
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- <p class="topless"><a href="blend.html"
- title="previous chapter">Blend</a></p>
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- <p class="topless"><a href="rasterizer.html"
- title="next chapter">Rasterizer</a></p>
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-
- <div class="section" id="rasterizer">
-<span id="id1"></span><h1>Rasterizer<a class="headerlink" href="#rasterizer" title="Permalink to this headline">¶</a></h1>
-<p>The rasterizer is the main chunk of state controlling how vertices are
-interpolated into fragments.</p>
-<div class="section" id="members">
-<h2>Members<a class="headerlink" href="#members" title="Permalink to this headline">¶</a></h2>
-<p>XXX undocumented light_twoside, front_winding, cull_mode, fill_cw, fill_ccw, offset_cw, offset_ccw
-XXX moar undocumented poly_smooth, line_stipple_factor, line_last_pixel, offset_units, offset_scale
-XXX sprite_coord_mode</p>
-<dl class="docutils">
-<dt>flatshade</dt>
-<dd>If set, the provoking vertex of each polygon is used to determine the
-color of the entire polygon. If not set, the color fragments will be
-interpolated from each vertex’s color.</dd>
-<dt>scissor</dt>
-<dd>Whether the scissor test is enabled.</dd>
-<dt>poly_stipple_enable</dt>
-<dd>Whether polygon stippling is enabled.</dd>
-<dt>point_smooth</dt>
-<dd>Whether points should be smoothed. Point smoothing turns rectangular
-points into circles or ovals.</dd>
-<dt>point_sprite</dt>
-<dd>Whether point sprites are enabled.</dd>
-<dt>point_size_per_vertex</dt>
-<dd>Whether vertices have a point size element.</dd>
-<dt>multisample</dt>
-<dd>Whether <em class="xref">MSAA</em> is enabled.</dd>
-<dt>line_smooth</dt>
-<dd>Whether lines should be smoothed. Line smoothing is simply anti-aliasing.</dd>
-<dt>line_stipple_enable</dt>
-<dd>Whether line stippling is enabled.</dd>
-<dt>line_stipple_pattern</dt>
-<dd>16-bit bitfield of on/off flags, used to pattern the line stipple.</dd>
-<dt>bypass_vs_clip_and_viewport</dt>
-<dd>Whether the entire TCL pipeline should be bypassed. This implies that
-vertices are pre-transformed for the viewport, and will not be run
-through the vertex shader. Note that implementations may still clip away
-vertices that are not in the viewport.</dd>
-<dt>flatshade_first</dt>
-<dd>Whether the first vertex should be the provoking vertex, for most
-primitives. If not set, the last vertex is the provoking vertex.</dd>
-<dt>gl_rasterization_rules</dt>
-<dd>Whether the rasterizer should use (0.5, 0.5) pixel centers. When not set,
-the rasterizer will use (0, 0) for pixel centers.</dd>
-<dt>line_width</dt>
-<dd>The width of lines.</dd>
-<dt>point_size</dt>
-<dd>The size of points, if not specified per-vertex.</dd>
-<dt>point_size_min</dt>
-<dd>The minimum size of points.</dd>
-<dt>point_size_max</dt>
-<dd>The maximum size of points.</dd>
-</dl>
-</div>
-<div class="section" id="notes">
-<h2>Notes<a class="headerlink" href="#notes" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="flatshade">
-<h3>flatshade<a class="headerlink" href="#flatshade" title="Permalink to this headline">¶</a></h3>
-<p>The actual interpolated shading algorithm is obviously
-implementation-dependent, but will usually be Gourard for most hardware.</p>
-</div>
-<div class="section" id="bypass-vs-clip-and-viewport">
-<h3>bypass_vs_clip_and_viewport<a class="headerlink" href="#bypass-vs-clip-and-viewport" title="Permalink to this headline">¶</a></h3>
-<p>When set, this implies that vertices are pre-transformed for the viewport, and
-will not be run through the vertex shader. Note that implementations may still
-clip away vertices that are not visible.</p>
-</div>
-<div class="section" id="flatshade-first">
-<h3>flatshade_first<a class="headerlink" href="#flatshade-first" title="Permalink to this headline">¶</a></h3>
-<p>There are several important exceptions to the specification of this rule.</p>
-<ul class="simple">
-<li><tt class="docutils literal"><span class="pre">PIPE_PRIMITIVE_POLYGON</span></tt>: The provoking vertex is always the first
-vertex. If the caller wishes to change the provoking vertex, they merely
-need to rotate the vertices themselves.</li>
-<li><tt class="docutils literal"><span class="pre">PIPE_PRIMITIVE_QUAD</span></tt>, <tt class="docutils literal"><span class="pre">PIPE_PRIMITIVE_QUAD_STRIP</span></tt>: This option has no
-effect; the provoking vertex is always the last vertex.</li>
-<li><tt class="docutils literal"><span class="pre">PIPE_PRIMITIVE_TRIANGLE_FAN</span></tt>: When set, the provoking vertex is the
-second vertex, not the first. This permits each segment of the fan to have
-a different color.</li>
-</ul>
-</div>
-</div>
-</div>
-
-
- </div>
- </div>
- </div>
- <div class="sphinxsidebar">
- <div class="sphinxsidebarwrapper">
- <h3><a href="../index.html">Table Of Contents</a></h3>
- <ul>
-<li><a class="reference external" href="">Rasterizer</a><ul>
-<li><a class="reference external" href="#members">Members</a></li>
-<li><a class="reference external" href="#notes">Notes</a><ul>
-<li><a class="reference external" href="#flatshade">flatshade</a></li>
-<li><a class="reference external" href="#bypass-vs-clip-and-viewport">bypass_vs_clip_and_viewport</a></li>
-<li><a class="reference external" href="#flatshade-first">flatshade_first</a></li>
-</ul>
-</li>
-</ul>
-</li>
-</ul>
-
- <h4>Previous topic</h4>
- <p class="topless"><a href="dsa.html"
- title="previous chapter">Depth, Stencil, & Alpha</a></p>
- <h4>Next topic</h4>
- <p class="topless"><a href="sampler.html"
- title="next chapter">Sampler</a></p>
- <h3>This Page</h3>
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- <div class="section" id="sampler">
-<span id="id1"></span><h1>Sampler<a class="headerlink" href="#sampler" title="Permalink to this headline">¶</a></h1>
-<p>Texture units have many options for selecting texels from loaded textures;
-this state controls an individual texture unit’s texel-sampling settings.</p>
-<p>Texture coordinates are always treated as four-dimensional, and referred to
-with the traditional (S, T, R, Q) notation.</p>
-<div class="section" id="members">
-<h2>Members<a class="headerlink" href="#members" title="Permalink to this headline">¶</a></h2>
-<p>XXX undocumented compare_mode, compare_func</p>
-<dl class="docutils">
-<dt>wrap_s</dt>
-<dd>How to wrap the S coordinate. One of PIPE_TEX_WRAP.</dd>
-<dt>wrap_t</dt>
-<dd>How to wrap the T coordinate. One of PIPE_TEX_WRAP.</dd>
-<dt>wrap_r</dt>
-<dd>How to wrap the R coordinate. One of PIPE_TEX_WRAP.</dd>
-<dt>min_img_filter</dt>
-<dd>The filter to use when minifying texels. One of PIPE_TEX_FILTER.</dd>
-<dt>min_mip_filter</dt>
-<dd>The filter to use when minifying mipmapped textures. One of
-PIPE_TEX_FILTER.</dd>
-<dt>mag_img_filter</dt>
-<dd>The filter to use when magnifying texels. One of PIPE_TEX_FILTER.</dd>
-<dt>normalized_coords</dt>
-<dd>Whether the texture coordinates are normalized. If normalized, they will
-always be in [0, 1]. If not, they will be in the range of each dimension
-of the loaded texture.</dd>
-<dt>prefilter</dt>
-<dd>XXX From the Doxy, “weird sampling state exposed by some APIs.” Refine.</dd>
-<dt>lod_bias</dt>
-<dd>The bias to apply to the level of detail.</dd>
-<dt>min_lod</dt>
-<dd>Minimum level of detail, used to clamp LoD after bias.</dd>
-<dt>max_lod</dt>
-<dd>Maximum level of detail, used to clamp LoD after bias.</dd>
-<dt>border_color</dt>
-<dd>RGBA color used for out-of-bounds coordinates.</dd>
-<dt>max_anisotropy</dt>
-<dd>Maximum filtering to apply anisotropically to textures. Setting this to
-1.0 effectively disables anisotropic filtering.</dd>
-</dl>
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+++ /dev/null
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to Gallium’s documentation!","CSO","Glossary","Screen","TGSI","Rasterizer","Shader","Introduction","Blend","Context","Sampler","Depth, Stencil, & Alpha"],modules:{},descrefs:{},filenames:["index","cso","glossary","screen","tgsi","cso/rasterizer","cso/shader","intro","cso/blend","context","cso/sampler","cso/dsa"]})
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- <div class="body">
-
- <div class="section" id="tgsi">
-<h1>TGSI<a class="headerlink" href="#tgsi" title="Permalink to this headline">¶</a></h1>
-<p>TGSI, Tungsten Graphics Shader Instructions, is an intermediate language
-for describing shaders. Since Gallium is inherently shaderful, shaders are
-an important part of the API. TGSI is the only intermediate representation
-used by all drivers.</p>
-<div class="section" id="instruction-set">
-<h2>Instruction Set<a class="headerlink" href="#instruction-set" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="from-gl-nv-vertex-program">
-<h3>From GL_NV_vertex_program<a class="headerlink" href="#from-gl-nv-vertex-program" title="Permalink to this headline">¶</a></h3>
-<p>ARL - Address Register Load</p>
-<div class="math">
-<p><img src="_images/math/a6a788a4144ea0b8be244aad870806646081b809.png" alt="dst.x = \lfloor src.x\rfloor
-
-dst.y = \lfloor src.y\rfloor
-
-dst.z = \lfloor src.z\rfloor
-
-dst.w = \lfloor src.w\rfloor" /></p>
-</div><p>MOV - Move</p>
-<div class="math">
-<p><img src="_images/math/723d0548eae0d4f8738fcf051e2e56bce034e7d4.png" alt="dst.x = src.x
-
-dst.y = src.y
-
-dst.z = src.z
-
-dst.w = src.w" /></p>
-</div><p>LIT - Light Coefficients</p>
-<div class="math">
-<p><img src="_images/math/758e5c32fbcca15fadbbf1ee7cb5967466f056e9.png" alt="dst.x = 1
-
-dst.y = max(src.x, 0)
-
-dst.z = (src.x > 0) ? max(src.y, 0)^{clamp(src.w, -128, 128))} : 0
-
-dst.w = 1" /></p>
-</div><p>RCP - Reciprocal</p>
-<div class="math">
-<p><img src="_images/math/c9bc0e532b3b63ed42567436058b919bc78442ce.png" alt="dst.x = \frac{1}{src.x}
-
-dst.y = \frac{1}{src.x}
-
-dst.z = \frac{1}{src.x}
-
-dst.w = \frac{1}{src.x}" /></p>
-</div><p>RSQ - Reciprocal Square Root</p>
-<div class="math">
-<p><img src="_images/math/70d1866ff09388f68ff5f0f88719006a59e19187.png" alt="dst.x = \frac{1}{\sqrt{|src.x|}}
-
-dst.y = \frac{1}{\sqrt{|src.x|}}
-
-dst.z = \frac{1}{\sqrt{|src.x|}}
-
-dst.w = \frac{1}{\sqrt{|src.x|}}" /></p>
-</div><p>EXP - Approximate Exponential Base 2</p>
-<div class="math">
-<p><img src="_images/math/61a735a5ca4687a35d98a8d42c127cb425b16eed.png" alt="dst.x = 2^{\lfloor src.x\rfloor}
-
-dst.y = src.x - \lfloor src.x\rfloor
-
-dst.z = 2^{src.x}
-
-dst.w = 1" /></p>
-</div><p>LOG - Approximate Logarithm Base 2</p>
-<div class="math">
-<p><img src="_images/math/f71ea96f5550b90a162f1d7a8b754eeb9b0d126e.png" alt="dst.x = \lfloor\log_2{|src.x|}\rfloor
-
-dst.y = \frac{|src.x|}{2^{\lfloor\log_2{|src.x|}\rfloor}}
-
-dst.z = \log_2{|src.x|}
-
-dst.w = 1" /></p>
-</div><p>MUL - Multiply</p>
-<div class="math">
-<p><img src="_images/math/8d727b11852ddbb13fb91083a0ce71ea2a47306f.png" alt="dst.x = src0.x \times src1.x
-
-dst.y = src0.y \times src1.y
-
-dst.z = src0.z \times src1.z
-
-dst.w = src0.w \times src1.w" /></p>
-</div><p>ADD - Add</p>
-<div class="math">
-<p><img src="_images/math/419ee673cdf363cbe29df99a84db18bf74b83cc4.png" alt="dst.x = src0.x + src1.x
-
-dst.y = src0.y + src1.y
-
-dst.z = src0.z + src1.z
-
-dst.w = src0.w + src1.w" /></p>
-</div><p>DP3 - 3-component Dot Product</p>
-<div class="math">
-<p><img src="_images/math/cd11030c4826718fe39618e48ae07d9298184a65.png" alt="dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
-dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
-dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
-
-dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z" /></p>
-</div><p>DP4 - 4-component Dot Product</p>
-<div class="math">
-<p><img src="_images/math/efbae5a733577ba979c4f08fa0e1de5e31953b92.png" alt="dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
-dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
-dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
-
-dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w" /></p>
-</div><p>DST - Distance Vector</p>
-<div class="math">
-<p><img src="_images/math/6d0d5702a6e475d584f295bd4f0fa80a70b70ee5.png" alt="dst.x = 1
-
-dst.y = src0.y \times src1.y
-
-dst.z = src0.z
-
-dst.w = src1.w" /></p>
-</div><p>MIN - Minimum</p>
-<div class="math">
-<p><img src="_images/math/73dec9e78c22629aa3379d21ccc96b1a5c5d2dbd.png" alt="dst.x = min(src0.x, src1.x)
-
-dst.y = min(src0.y, src1.y)
-
-dst.z = min(src0.z, src1.z)
-
-dst.w = min(src0.w, src1.w)" /></p>
-</div><p>MAX - Maximum</p>
-<div class="math">
-<p><img src="_images/math/1ad10aa070bc12ee93fca94040edb8900468ae29.png" alt="dst.x = max(src0.x, src1.x)
-
-dst.y = max(src0.y, src1.y)
-
-dst.z = max(src0.z, src1.z)
-
-dst.w = max(src0.w, src1.w)" /></p>
-</div><p>SLT - Set On Less Than</p>
-<div class="math">
-<p><img src="_images/math/b1db3ad26718bdcf3d1afeb866f1fc595230786d.png" alt="dst.x = (src0.x < src1.x) ? 1 : 0
-
-dst.y = (src0.y < src1.y) ? 1 : 0
-
-dst.z = (src0.z < src1.z) ? 1 : 0
-
-dst.w = (src0.w < src1.w) ? 1 : 0" /></p>
-</div><p>SGE - Set On Greater Equal Than</p>
-<div class="math">
-<p><img src="_images/math/bb15ac1bdb0b295273a7c57060899063cf618a95.png" alt="dst.x = (src0.x >= src1.x) ? 1 : 0
-
-dst.y = (src0.y >= src1.y) ? 1 : 0
-
-dst.z = (src0.z >= src1.z) ? 1 : 0
-
-dst.w = (src0.w >= src1.w) ? 1 : 0" /></p>
-</div><p>MAD - Multiply And Add</p>
-<div class="math">
-<p><img src="_images/math/cb4e90af76c03c927762a3c33e989ce2c41f5be5.png" alt="dst.x = src0.x \times src1.x + src2.x
-
-dst.y = src0.y \times src1.y + src2.y
-
-dst.z = src0.z \times src1.z + src2.z
-
-dst.w = src0.w \times src1.w + src2.w" /></p>
-</div><p>SUB - Subtract</p>
-<div class="math">
-<p><img src="_images/math/d96d8a97260276b9db5e903a05339b869391856f.png" alt="dst.x = src0.x - src1.x
-
-dst.y = src0.y - src1.y
-
-dst.z = src0.z - src1.z
-
-dst.w = src0.w - src1.w" /></p>
-</div><p>LRP - Linear Interpolate</p>
-<div class="math">
-<p><img src="_images/math/cf94ae7663599af8dc7ada12a43b33ca5083044a.png" alt="dst.x = src0.x \times (src1.x - src2.x) + src2.x
-
-dst.y = src0.y \times (src1.y - src2.y) + src2.y
-
-dst.z = src0.z \times (src1.z - src2.z) + src2.z
-
-dst.w = src0.w \times (src1.w - src2.w) + src2.w" /></p>
-</div><p>CND - Condition</p>
-<div class="math">
-<p><img src="_images/math/f9be0a9bff61d950cb768b8d10c66a45377f3124.png" alt="dst.x = (src2.x > 0.5) ? src0.x : src1.x
-
-dst.y = (src2.y > 0.5) ? src0.y : src1.y
-
-dst.z = (src2.z > 0.5) ? src0.z : src1.z
-
-dst.w = (src2.w > 0.5) ? src0.w : src1.w" /></p>
-</div><p>DP2A - 2-component Dot Product And Add</p>
-<div class="math">
-<p><img src="_images/math/abcd8a9f57fcaecc5e5c14835fa7438b08b4009d.png" alt="dst.x = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
-dst.y = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
-dst.z = src0.x \times src1.x + src0.y \times src1.y + src2.x
-
-dst.w = src0.x \times src1.x + src0.y \times src1.y + src2.x" /></p>
-</div><p>FRAC - Fraction</p>
-<div class="math">
-<p><img src="_images/math/df45d09eb32da9798269d030845962e4d92e26de.png" alt="dst.x = src.x - \lfloor src.x\rfloor
-
-dst.y = src.y - \lfloor src.y\rfloor
-
-dst.z = src.z - \lfloor src.z\rfloor
-
-dst.w = src.w - \lfloor src.w\rfloor" /></p>
-</div><p>CLAMP - Clamp</p>
-<div class="math">
-<p><img src="_images/math/56093f3e51016bf4a7784ed66cb8628202f58b2d.png" alt="dst.x = clamp(src0.x, src1.x, src2.x)
-
-dst.y = clamp(src0.y, src1.y, src2.y)
-
-dst.z = clamp(src0.z, src1.z, src2.z)
-
-dst.w = clamp(src0.w, src1.w, src2.w)" /></p>
-</div><p>FLR - Floor</p>
-<p>This is identical to ARL.</p>
-<div class="math">
-<p><img src="_images/math/a6a788a4144ea0b8be244aad870806646081b809.png" alt="dst.x = \lfloor src.x\rfloor
-
-dst.y = \lfloor src.y\rfloor
-
-dst.z = \lfloor src.z\rfloor
-
-dst.w = \lfloor src.w\rfloor" /></p>
-</div><p>ROUND - Round</p>
-<div class="math">
-<p><img src="_images/math/226c98a475a610bdeb91b4fbf51261cf8721d8f6.png" alt="dst.x = round(src.x)
-
-dst.y = round(src.y)
-
-dst.z = round(src.z)
-
-dst.w = round(src.w)" /></p>
-</div><p>EX2 - Exponential Base 2</p>
-<div class="math">
-<p><img src="_images/math/0210d258bc676109314169f2dd4320059387500c.png" alt="dst.x = 2^{src.x}
-
-dst.y = 2^{src.x}
-
-dst.z = 2^{src.x}
-
-dst.w = 2^{src.x}" /></p>
-</div><p>LG2 - Logarithm Base 2</p>
-<div class="math">
-<p><img src="_images/math/1b910bba9c9c6d11618b234335f33413d4f76ee6.png" alt="dst.x = \log_2{src.x}
-
-dst.y = \log_2{src.x}
-
-dst.z = \log_2{src.x}
-
-dst.w = \log_2{src.x}" /></p>
-</div><p>POW - Power</p>
-<div class="math">
-<p><img src="_images/math/290ad5e39fd561a8616e6eb9abc488c8615b36c7.png" alt="dst.x = src0.x^{src1.x}
-
-dst.y = src0.x^{src1.x}
-
-dst.z = src0.x^{src1.x}
-
-dst.w = src0.x^{src1.x}" /></p>
-</div><p>XPD - Cross Product</p>
-<div class="math">
-<p><img src="_images/math/751ec5401cf0d30257850404124ddad65cd5c0b2.png" alt="dst.x = src0.y \times src1.z - src1.y \times src0.z
-
-dst.y = src0.z \times src1.x - src1.z \times src0.x
-
-dst.z = src0.x \times src1.y - src1.x \times src0.y
-
-dst.w = 1" /></p>
-</div><p>ABS - Absolute</p>
-<div class="math">
-<p><img src="_images/math/ad452a9162cb4c5aeb7638cac156cf04155c968a.png" alt="dst.x = |src.x|
-
-dst.y = |src.y|
-
-dst.z = |src.z|
-
-dst.w = |src.w|" /></p>
-</div><p>RCC - Reciprocal Clamped</p>
-<p>XXX cleanup on aisle three</p>
-<div class="math">
-<p><img src="_images/math/f5fe168fde58a4d9fb87b5ef1e8b532f02f3a7cb.png" alt="dst.x = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
-dst.y = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
-dst.z = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)
-
-dst.w = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020)" /></p>
-</div><p>DPH - Homogeneous Dot Product</p>
-<div class="math">
-<p><img src="_images/math/2049740526a3bf3b01a0793817069df1d2b217a6.png" alt="dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
-dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
-dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
-
-dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w" /></p>
-</div><p>COS - Cosine</p>
-<div class="math">
-<p><img src="_images/math/ade7e8ec73d74fb03022a40c9a69055c7a0a937b.png" alt="dst.x = \cos{src.x}
-
-dst.y = \cos{src.x}
-
-dst.z = \cos{src.x}
-
-dst.w = \cos{src.w}" /></p>
-</div><p>DDX - Derivative Relative To X</p>
-<div class="math">
-<p><img src="_images/math/5846a9ccdaf9e3c8c9ffa099acee7e80c7cc0d4b.png" alt="dst.x = partialx(src.x)
-
-dst.y = partialx(src.y)
-
-dst.z = partialx(src.z)
-
-dst.w = partialx(src.w)" /></p>
-</div><p>DDY - Derivative Relative To Y</p>
-<div class="math">
-<p><img src="_images/math/f89c54b3cac95d930ef70dffa6dc62db5fac05a6.png" alt="dst.x = partialy(src.x)
-
-dst.y = partialy(src.y)
-
-dst.z = partialy(src.z)
-
-dst.w = partialy(src.w)" /></p>
-</div><p>KILP - Predicated Discard</p>
-<blockquote>
-discard</blockquote>
-<p>PK2H - Pack Two 16-bit Floats</p>
-<blockquote>
-TBD</blockquote>
-<p>PK2US - Pack Two Unsigned 16-bit Scalars</p>
-<blockquote>
-TBD</blockquote>
-<p>PK4B - Pack Four Signed 8-bit Scalars</p>
-<blockquote>
-TBD</blockquote>
-<p>PK4UB - Pack Four Unsigned 8-bit Scalars</p>
-<blockquote>
-TBD</blockquote>
-<p>RFL - Reflection Vector</p>
-<div class="math">
-<p><img src="_images/math/6dfa1d81b7272fac743c04c8f5fbd74bb42639b4.png" alt="dst.x = 2 \times (src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z) / (src0.x \times src0.x + src0.y \times src0.y + src0.z \times src0.z) \times src0.x - src1.x
-
-dst.y = 2 \times (src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z) / (src0.x \times src0.x + src0.y \times src0.y + src0.z \times src0.z) \times src0.y - src1.y
-
-dst.z = 2 \times (src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z) / (src0.x \times src0.x + src0.y \times src0.y + src0.z \times src0.z) \times src0.z - src1.z
-
-dst.w = 1" /></p>
-</div><p>Considered for removal.</p>
-<p>SEQ - Set On Equal</p>
-<div class="math">
-<p><img src="_images/math/5eac00cd4b387d141630ace602ed89d9a2ccc0ef.png" alt="dst.x = (src0.x == src1.x) ? 1 : 0
-dst.y = (src0.y == src1.y) ? 1 : 0
-dst.z = (src0.z == src1.z) ? 1 : 0
-dst.w = (src0.w == src1.w) ? 1 : 0" /></p>
-</div><p>SFL - Set On False</p>
-<div class="math">
-<p><img src="_images/math/15f738543d3cfe86879e953e69536effdc1d97f5.png" alt="dst.x = 0
-dst.y = 0
-dst.z = 0
-dst.w = 0" /></p>
-</div><p>Considered for removal.</p>
-<p>SGT - Set On Greater Than</p>
-<div class="math">
-<p><img src="_images/math/2bbfc816656154cb764d951002e595719a0cfce1.png" alt="dst.x = (src0.x > src1.x) ? 1 : 0
-dst.y = (src0.y > src1.y) ? 1 : 0
-dst.z = (src0.z > src1.z) ? 1 : 0
-dst.w = (src0.w > src1.w) ? 1 : 0" /></p>
-</div><p>SIN - Sine</p>
-<div class="math">
-<p><img src="_images/math/0e5562f4fdf39c2754c17f761d76dcdb738dd233.png" alt="dst.x = \sin{src.x}
-
-dst.y = \sin{src.x}
-
-dst.z = \sin{src.x}
-
-dst.w = \sin{src.w}" /></p>
-</div><p>SLE - Set On Less Equal Than</p>
-<div class="math">
-<p><img src="_images/math/3f4ffe13f32660772fc7dbde7b56fff6308b347c.png" alt="dst.x = (src0.x <= src1.x) ? 1 : 0
-dst.y = (src0.y <= src1.y) ? 1 : 0
-dst.z = (src0.z <= src1.z) ? 1 : 0
-dst.w = (src0.w <= src1.w) ? 1 : 0" /></p>
-</div><p>SNE - Set On Not Equal</p>
-<div class="math">
-<p><img src="_images/math/7a206759bbd06a8ef2385b8b7cf42b07521d36a8.png" alt="dst.x = (src0.x != src1.x) ? 1 : 0
-dst.y = (src0.y != src1.y) ? 1 : 0
-dst.z = (src0.z != src1.z) ? 1 : 0
-dst.w = (src0.w != src1.w) ? 1 : 0" /></p>
-</div><p>STR - Set On True</p>
-<div class="math">
-<p><img src="_images/math/9a8aa4392d07b8c3fd7f2bc7ddee9eecd87e2c21.png" alt="dst.x = 1
-dst.y = 1
-dst.z = 1
-dst.w = 1" /></p>
-</div><p>TEX - Texture Lookup</p>
-<blockquote>
-TBD</blockquote>
-<p>TXD - Texture Lookup with Derivatives</p>
-<blockquote>
-TBD</blockquote>
-<p>TXP - Projective Texture Lookup</p>
-<blockquote>
-TBD</blockquote>
-<p>UP2H - Unpack Two 16-Bit Floats</p>
-<blockquote>
-<p>TBD</p>
-<p>Considered for removal.</p>
-</blockquote>
-<p>UP2US - Unpack Two Unsigned 16-Bit Scalars</p>
-<blockquote>
-<p>TBD</p>
-<p>Considered for removal.</p>
-</blockquote>
-<p>UP4B - Unpack Four Signed 8-Bit Values</p>
-<blockquote>
-<p>TBD</p>
-<p>Considered for removal.</p>
-</blockquote>
-<p>UP4UB - Unpack Four Unsigned 8-Bit Scalars</p>
-<blockquote>
-<p>TBD</p>
-<p>Considered for removal.</p>
-</blockquote>
-<p>X2D - 2D Coordinate Transformation</p>
-<div class="math">
-<p><img src="_images/math/f94a20471877c44c7f623279934018e5c7348e83.png" alt="dst.x = src0.x + src1.x \times src2.x + src1.y \times src2.y
-dst.y = src0.y + src1.x \times src2.z + src1.y \times src2.w
-dst.z = src0.x + src1.x \times src2.x + src1.y \times src2.y
-dst.w = src0.y + src1.x \times src2.z + src1.y \times src2.w" /></p>
-</div><p>Considered for removal.</p>
-</div>
-<div class="section" id="from-gl-nv-vertex-program2">
-<h3>From GL_NV_vertex_program2<a class="headerlink" href="#from-gl-nv-vertex-program2" title="Permalink to this headline">¶</a></h3>
-<p>ARA - Address Register Add</p>
-<blockquote>
-<p>TBD</p>
-<p>Considered for removal.</p>
-</blockquote>
-<p>ARR - Address Register Load With Round</p>
-<div class="math">
-<p><img src="_images/math/226c98a475a610bdeb91b4fbf51261cf8721d8f6.png" alt="dst.x = round(src.x)
-
-dst.y = round(src.y)
-
-dst.z = round(src.z)
-
-dst.w = round(src.w)" /></p>
-</div><p>BRA - Branch</p>
-<blockquote>
-<p>pc = target</p>
-<p>Considered for removal.</p>
-</blockquote>
-<p>CAL - Subroutine Call</p>
-<blockquote>
-push(pc)
-pc = target</blockquote>
-<p>RET - Subroutine Call Return</p>
-<blockquote>
-<p>pc = pop()</p>
-<p>Potential restrictions:
-times Only occurs at end of function.</p>
-</blockquote>
-<p>SSG - Set Sign</p>
-<div class="math">
-<p><img src="_images/math/096db0cc9a735fa08397a0d940cb96025db3e3c8.png" alt="dst.x = (src.x > 0) ? 1 : (src.x < 0) ? -1 : 0
-
-dst.y = (src.y > 0) ? 1 : (src.y < 0) ? -1 : 0
-
-dst.z = (src.z > 0) ? 1 : (src.z < 0) ? -1 : 0
-
-dst.w = (src.w > 0) ? 1 : (src.w < 0) ? -1 : 0" /></p>
-</div><p>CMP - Compare</p>
-<div class="math">
-<p><img src="_images/math/53961253955fd2148f7cef66c79f2274c76f1954.png" alt="dst.x = (src0.x < 0) ? src1.x : src2.x
-
-dst.y = (src0.y < 0) ? src1.y : src2.y
-
-dst.z = (src0.z < 0) ? src1.z : src2.z
-
-dst.w = (src0.w < 0) ? src1.w : src2.w" /></p>
-</div><p>KIL - Conditional Discard</p>
-<div class="math">
-<p><img src="_images/math/ef0c42df6cde68a9c411ff8ce9ad1603b2715daf.png" alt="if (src.x < 0 || src.y < 0 || src.z < 0 || src.w < 0)
- discard
-endif" /></p>
-</div><p>SCS - Sine Cosine</p>
-<div class="math">
-<p><img src="_images/math/1ed3a5293ecdad1b4847367fba55be005fe7f6ba.png" alt="dst.x = \cos{src.x}
-
-dst.y = \sin{src.x}
-
-dst.z = 0
-
-dst.y = 1" /></p>
-</div><p>TXB - Texture Lookup With Bias</p>
-<blockquote>
-TBD</blockquote>
-<p>NRM - 3-component Vector Normalise</p>
-<div class="math">
-<p><img src="_images/math/a6403ef2be1ec6b8eafb37e12b4e44adf240444e.png" alt="dst.x = src.x / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
-
-dst.y = src.y / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
-
-dst.z = src.z / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
-
-dst.w = 1" /></p>
-</div><p>DIV - Divide</p>
-<div class="math">
-<p><img src="_images/math/f8d904588ef4d267803f5aee2f5789d9eda5b0e4.png" alt="dst.x = \frac{src0.x}{src1.x}
-
-dst.y = \frac{src0.y}{src1.y}
-
-dst.z = \frac{src0.z}{src1.z}
-
-dst.w = \frac{src0.w}{src1.w}" /></p>
-</div><p>DP2 - 2-component Dot Product</p>
-<div class="math">
-<p><img src="_images/math/052e6cb10c4892efcc9dfdd69fd3480adbae7bba.png" alt="dst.x = src0.x \times src1.x + src0.y \times src1.y
-
-dst.y = src0.x \times src1.x + src0.y \times src1.y
-
-dst.z = src0.x \times src1.x + src0.y \times src1.y
-
-dst.w = src0.x \times src1.x + src0.y \times src1.y" /></p>
-</div><p>TXL - Texture Lookup With LOD</p>
-<blockquote>
-TBD</blockquote>
-<p>BRK - Break</p>
-<blockquote>
-TBD</blockquote>
-<p>IF - If</p>
-<blockquote>
-TBD</blockquote>
-<p>BGNFOR - Begin a For-Loop</p>
-<blockquote>
-<p>dst.x = floor(src.x)
-dst.y = floor(src.y)
-dst.z = floor(src.z)</p>
-<dl class="docutils">
-<dt>if (dst.y <= 0)</dt>
-<dd>pc = [matching ENDFOR] + 1</dd>
-</dl>
-<p>endif</p>
-<dl class="docutils">
-<dt>Note: The destination must be a loop register.</dt>
-<dd>The source must be a constant register.</dd>
-</dl>
-<p>Considered for cleanup / removal.</p>
-</blockquote>
-<p>REP - Repeat</p>
-<blockquote>
-TBD</blockquote>
-<p>ELSE - Else</p>
-<blockquote>
-TBD</blockquote>
-<p>ENDIF - End If</p>
-<blockquote>
-TBD</blockquote>
-<p>ENDFOR - End a For-Loop</p>
-<blockquote>
-<p>dst.x = dst.x + dst.z
-dst.y = dst.y - 1.0</p>
-<dl class="docutils">
-<dt>if (dst.y > 0)</dt>
-<dd>pc = [matching BGNFOR instruction] + 1</dd>
-</dl>
-<p>endif</p>
-<p>Note: The destination must be a loop register.</p>
-<p>Considered for cleanup / removal.</p>
-</blockquote>
-<p>ENDREP - End Repeat</p>
-<blockquote>
-TBD</blockquote>
-<p>PUSHA - Push Address Register On Stack</p>
-<blockquote>
-<p>push(src.x)
-push(src.y)
-push(src.z)
-push(src.w)</p>
-<p>Considered for cleanup / removal.</p>
-</blockquote>
-<p>POPA - Pop Address Register From Stack</p>
-<blockquote>
-<p>dst.w = pop()
-dst.z = pop()
-dst.y = pop()
-dst.x = pop()</p>
-<p>Considered for cleanup / removal.</p>
-</blockquote>
-</div>
-<div class="section" id="from-gl-nv-gpu-program4">
-<h3>From GL_NV_gpu_program4<a class="headerlink" href="#from-gl-nv-gpu-program4" title="Permalink to this headline">¶</a></h3>
-<p>Support for these opcodes indicated by a special pipe capability bit (TBD).</p>
-<p>CEIL - Ceiling</p>
-<div class="math">
-<p><img src="_images/math/03e47c613e946131569cb8ab9b88ae7b31a7a436.png" alt="dst.x = \lceil src.x\rceil
-
-dst.y = \lceil src.y\rceil
-
-dst.z = \lceil src.z\rceil
-
-dst.w = \lceil src.w\rceil" /></p>
-</div><p>I2F - Integer To Float</p>
-<div class="math">
-<p><img src="_images/math/fa38e14d5e8d8fcf15c70890e66ae5727443e531.png" alt="dst.x = (float) src.x
-
-dst.y = (float) src.y
-
-dst.z = (float) src.z
-
-dst.w = (float) src.w" /></p>
-</div><p>NOT - Bitwise Not</p>
-<div class="math">
-<p><img src="_images/math/ae28f3acd0883602c612198d7bcd7fc277972f31.png" alt="dst.x = ~src.x
-
-dst.y = ~src.y
-
-dst.z = ~src.z
-
-dst.w = ~src.w" /></p>
-</div><p>TRUNC - Truncate</p>
-<p>XXX how is this different from floor?</p>
-<div class="math">
-<p><img src="_images/math/4a413dd124842171577a13c5de2f45c92f1a0c59.png" alt="dst.x = trunc(src.x)
-
-dst.y = trunc(src.y)
-
-dst.z = trunc(src.z)
-
-dst.w = trunc(src.w)" /></p>
-</div><p>SHL - Shift Left</p>
-<div class="math">
-<p><img src="_images/math/6d8f34db37f5d0909f568cbd49dbb9bbd376629d.png" alt="dst.x = src0.x << src1.x
-
-dst.y = src0.y << src1.x
-
-dst.z = src0.z << src1.x
-
-dst.w = src0.w << src1.x" /></p>
-</div><p>SHR - Shift Right</p>
-<div class="math">
-<p><img src="_images/math/8bb711dcf8af2b6a34bd4cb19311c1c2c445ef5e.png" alt="dst.x = src0.x >> src1.x
-
-dst.y = src0.y >> src1.x
-
-dst.z = src0.z >> src1.x
-
-dst.w = src0.w >> src1.x" /></p>
-</div><p>AND - Bitwise And</p>
-<div class="math">
-<p><img src="_images/math/a37f2da4dd31c01e7c3afd0adab9bdf27c9d4805.png" alt="dst.x = src0.x & src1.x
-
-dst.y = src0.y & src1.y
-
-dst.z = src0.z & src1.z
-
-dst.w = src0.w & src1.w" /></p>
-</div><p>OR - Bitwise Or</p>
-<div class="math">
-<p><img src="_images/math/84549dcb2fc79ba332fa86d8b6bdac239d32097f.png" alt="dst.x = src0.x | src1.x
-
-dst.y = src0.y | src1.y
-
-dst.z = src0.z | src1.z
-
-dst.w = src0.w | src1.w" /></p>
-</div><p>MOD - Modulus</p>
-<div class="math">
-<p><img src="_images/math/10d8720201a3a554b1610687157a80fae1871f6d.png" alt="dst.x = src0.x \bmod src1.x
-
-dst.y = src0.y \bmod src1.y
-
-dst.z = src0.z \bmod src1.z
-
-dst.w = src0.w \bmod src1.w" /></p>
-</div><p>XOR - Bitwise Xor</p>
-<div class="math">
-<p><img src="_images/math/0f7e82c35f1b87f2d11da3fbc639085a54a5e7ec.png" alt="dst.x = src0.x ^ src1.x
-
-dst.y = src0.y ^ src1.y
-
-dst.z = src0.z ^ src1.z
-
-dst.w = src0.w ^ src1.w" /></p>
-</div><p>SAD - Sum Of Absolute Differences</p>
-<div class="math">
-<p><img src="_images/math/a4a04906e15ff687e62dcad0046baa9ae05eabb5.png" alt="dst.x = |src0.x - src1.x| + src2.x
-
-dst.y = |src0.y - src1.y| + src2.y
-
-dst.z = |src0.z - src1.z| + src2.z
-
-dst.w = |src0.w - src1.w| + src2.w" /></p>
-</div><p>TXF - Texel Fetch</p>
-<blockquote>
-TBD</blockquote>
-<p>TXQ - Texture Size Query</p>
-<blockquote>
-TBD</blockquote>
-<p>CONT - Continue</p>
-<blockquote>
-TBD</blockquote>
-</div>
-<div class="section" id="from-gl-nv-geometry-program4">
-<h3>From GL_NV_geometry_program4<a class="headerlink" href="#from-gl-nv-geometry-program4" title="Permalink to this headline">¶</a></h3>
-<p>EMIT - Emit</p>
-<blockquote>
-TBD</blockquote>
-<p>ENDPRIM - End Primitive</p>
-<blockquote>
-TBD</blockquote>
-</div>
-<div class="section" id="from-glsl">
-<h3>From GLSL<a class="headerlink" href="#from-glsl" title="Permalink to this headline">¶</a></h3>
-<p>BGNLOOP - Begin a Loop</p>
-<blockquote>
-TBD</blockquote>
-<p>BGNSUB - Begin Subroutine</p>
-<blockquote>
-TBD</blockquote>
-<p>ENDLOOP - End a Loop</p>
-<blockquote>
-TBD</blockquote>
-<p>ENDSUB - End Subroutine</p>
-<blockquote>
-TBD</blockquote>
-<p>NOP - No Operation</p>
-<blockquote>
-Do nothing.</blockquote>
-<p>NRM4 - 4-component Vector Normalise</p>
-<div class="math">
-<p><img src="_images/math/740c183de3654a7e7ee772a640badd3b2844da81.png" alt="dst.x = \frac{src.x}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
-dst.y = \frac{src.y}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
-dst.z = \frac{src.z}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}
-
-dst.w = \frac{src.w}{src.x \times src.x + src.y \times src.y + src.z \times src.z + src.w \times src.w}" /></p>
-</div></div>
-<div class="section" id="ps-2-x">
-<h3>ps_2_x<a class="headerlink" href="#ps-2-x" title="Permalink to this headline">¶</a></h3>
-<p>CALLNZ - Subroutine Call If Not Zero</p>
-<blockquote>
-TBD</blockquote>
-<p>IFC - If</p>
-<blockquote>
-TBD</blockquote>
-<p>BREAKC - Break Conditional</p>
-<blockquote>
-TBD</blockquote>
-</div>
-</div>
-<div class="section" id="explanation-of-symbols-used">
-<h2>Explanation of symbols used<a class="headerlink" href="#explanation-of-symbols-used" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="functions">
-<h3>Functions<a class="headerlink" href="#functions" title="Permalink to this headline">¶</a></h3>
-<blockquote>
-<p><img class="math" src="_images/math/49428192d366caf373c0af3c3261687f12b4c883.png" alt="|x|"/> Absolute value of <cite>x</cite>.</p>
-<p><img class="math" src="_images/math/1a7cd7095a9b123f81967d8d3b14d1e02b0174e7.png" alt="\lceil x \rceil"/> Ceiling of <cite>x</cite>.</p>
-<dl class="docutils">
-<dt>clamp(x,y,z) Clamp x between y and z.</dt>
-<dd>(x < y) ? y : (x > z) ? z : x</dd>
-</dl>
-<p><img class="math" src="_images/math/441416e660d25335f27e55334ac2a06e51541c97.png" alt="\lfloor x\rfloor"/> Floor of <cite>x</cite>.</p>
-<p><img class="math" src="_images/math/1ce288a883e98c3d1027d27f6246e7d3fdc4d78c.png" alt="\log_2{x}"/> Logarithm of <cite>x</cite>, base 2.</p>
-<dl class="docutils">
-<dt>max(x,y) Maximum of x and y.</dt>
-<dd>(x > y) ? x : y</dd>
-<dt>min(x,y) Minimum of x and y.</dt>
-<dd>(x < y) ? x : y</dd>
-</dl>
-<p>partialx(x) Derivative of x relative to fragment’s X.</p>
-<p>partialy(x) Derivative of x relative to fragment’s Y.</p>
-<p>pop() Pop from stack.</p>
-<p><img class="math" src="_images/math/8f9af910fe749481919573c0dd2b132118f19d19.png" alt="x^y"/> <cite>x</cite> to the power <cite>y</cite>.</p>
-<p>push(x) Push x on stack.</p>
-<p>round(x) Round x.</p>
-<p>trunc(x) Truncate x.</p>
-</blockquote>
-</div>
-<div class="section" id="keywords">
-<h3>Keywords<a class="headerlink" href="#keywords" title="Permalink to this headline">¶</a></h3>
-<blockquote>
-<p>discard Discard fragment.</p>
-<p>dst First destination register.</p>
-<p>dst0 First destination register.</p>
-<p>pc Program counter.</p>
-<p>src First source register.</p>
-<p>src0 First source register.</p>
-<p>src1 Second source register.</p>
-<p>src2 Third source register.</p>
-<p>target Label of target instruction.</p>
-</blockquote>
-</div>
-</div>
-<div class="section" id="other-tokens">
-<h2>Other tokens<a class="headerlink" href="#other-tokens" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="declaration-semantic">
-<h3>Declaration Semantic<a class="headerlink" href="#declaration-semantic" title="Permalink to this headline">¶</a></h3>
-<blockquote>
-<p>Follows Declaration token if Semantic bit is set.</p>
-<p>Since its purpose is to link a shader with other stages of the pipeline,
-it is valid to follow only those Declaration tokens that declare a register
-either in INPUT or OUTPUT file.</p>
-<p>SemanticName field contains the semantic name of the register being declared.
-There is no default value.</p>
-<p>SemanticIndex is an optional subscript that can be used to distinguish
-different register declarations with the same semantic name. The default value
-is 0.</p>
-<p>The meanings of the individual semantic names are explained in the following
-sections.</p>
-</blockquote>
-<div class="section" id="tgsi-semantic-position">
-<h4>TGSI_SEMANTIC_POSITION<a class="headerlink" href="#tgsi-semantic-position" title="Permalink to this headline">¶</a></h4>
-<p>Position, sometimes known as HPOS or WPOS for historical reasons, is the
-location of the vertex in space, in <tt class="docutils literal"><span class="pre">(x,</span> <span class="pre">y,</span> <span class="pre">z,</span> <span class="pre">w)</span></tt> format. <tt class="docutils literal"><span class="pre">x</span></tt>, <tt class="docutils literal"><span class="pre">y</span></tt>, and <tt class="docutils literal"><span class="pre">z</span></tt>
-are the Cartesian coordinates, and <tt class="docutils literal"><span class="pre">w</span></tt> is the homogenous coordinate and used
-for the perspective divide, if enabled.</p>
-<p>As a vertex shader output, position should be scaled to the viewport. When
-used in fragment shaders, position will —</p>
-<p>XXX — wait a minute. Should position be in [0,1] for x and y?</p>
-<p>XXX additionally, is there a way to configure the perspective divide? it’s
-accelerated on most chipsets AFAIK...</p>
-<p>Position, if not specified, usually defaults to <tt class="docutils literal"><span class="pre">(0,</span> <span class="pre">0,</span> <span class="pre">0,</span> <span class="pre">1)</span></tt>, and can
-be partially specified as <tt class="docutils literal"><span class="pre">(x,</span> <span class="pre">y,</span> <span class="pre">0,</span> <span class="pre">1)</span></tt> or <tt class="docutils literal"><span class="pre">(x,</span> <span class="pre">y,</span> <span class="pre">z,</span> <span class="pre">1)</span></tt>.</p>
-<p>XXX usually? can we solidify that?</p>
-</div>
-<div class="section" id="tgsi-semantic-color">
-<h4>TGSI_SEMANTIC_COLOR<a class="headerlink" href="#tgsi-semantic-color" title="Permalink to this headline">¶</a></h4>
-<p>Colors are used to, well, color the primitives. Colors are always in
-<tt class="docutils literal"><span class="pre">(r,</span> <span class="pre">g,</span> <span class="pre">b,</span> <span class="pre">a)</span></tt> format.</p>
-<p>If alpha is not specified, it defaults to 1.</p>
-</div>
-<div class="section" id="tgsi-semantic-bcolor">
-<h4>TGSI_SEMANTIC_BCOLOR<a class="headerlink" href="#tgsi-semantic-bcolor" title="Permalink to this headline">¶</a></h4>
-<p>Back-facing colors are only used for back-facing polygons, and are only valid
-in vertex shader outputs. After rasterization, all polygons are front-facing
-and COLOR and BCOLOR end up occupying the same slots in the fragment, so
-all BCOLORs effectively become regular COLORs in the fragment shader.</p>
-</div>
-<div class="section" id="tgsi-semantic-fog">
-<h4>TGSI_SEMANTIC_FOG<a class="headerlink" href="#tgsi-semantic-fog" title="Permalink to this headline">¶</a></h4>
-<p>The fog coordinate historically has been used to replace the depth coordinate
-for generation of fog in dedicated fog blocks. Gallium, however, does not use
-dedicated fog acceleration, placing it entirely in the fragment shader
-instead.</p>
-<p>The fog coordinate should be written in <tt class="docutils literal"><span class="pre">(f,</span> <span class="pre">0,</span> <span class="pre">0,</span> <span class="pre">1)</span></tt> format. Only the first
-component matters when writing from the vertex shader; the driver will ensure
-that the coordinate is in this format when used as a fragment shader input.</p>
-</div>
-<div class="section" id="tgsi-semantic-psize">
-<h4>TGSI_SEMANTIC_PSIZE<a class="headerlink" href="#tgsi-semantic-psize" title="Permalink to this headline">¶</a></h4>
-<p>PSIZE, or point size, is used to specify point sizes per-vertex. It should
-be in <tt class="docutils literal"><span class="pre">(p,</span> <span class="pre">n,</span> <span class="pre">x,</span> <span class="pre">f)</span></tt> format, where <tt class="docutils literal"><span class="pre">p</span></tt> is the point size, <tt class="docutils literal"><span class="pre">n</span></tt> is the minimum
-size, <tt class="docutils literal"><span class="pre">x</span></tt> is the maximum size, and <tt class="docutils literal"><span class="pre">f</span></tt> is the fade threshold.</p>
-<p>XXX this is arb_vp. is this what we actually do? should double-check...</p>
-<p>When using this semantic, be sure to set the appropriate state in the
-<a class="reference external" href="cso/rasterizer.html#rasterizer"><em>Rasterizer</em></a> first.</p>
-</div>
-<div class="section" id="tgsi-semantic-generic">
-<h4>TGSI_SEMANTIC_GENERIC<a class="headerlink" href="#tgsi-semantic-generic" title="Permalink to this headline">¶</a></h4>
-<p>Generic semantics are nearly always used for texture coordinate attributes,
-in <tt class="docutils literal"><span class="pre">(s,</span> <span class="pre">t,</span> <span class="pre">r,</span> <span class="pre">q)</span></tt> format. <tt class="docutils literal"><span class="pre">t</span></tt> and <tt class="docutils literal"><span class="pre">r</span></tt> may be unused for certain kinds
-of lookups, and <tt class="docutils literal"><span class="pre">q</span></tt> is the level-of-detail bias for biased sampling.</p>
-<p>These attributes are called “generic” because they may be used for anything
-else, including parameters, texture generation information, or anything that
-can be stored inside a four-component vector.</p>
-</div>
-<div class="section" id="tgsi-semantic-normal">
-<h4>TGSI_SEMANTIC_NORMAL<a class="headerlink" href="#tgsi-semantic-normal" title="Permalink to this headline">¶</a></h4>
-<p>XXX no clue.</p>
-</div>
-<div class="section" id="tgsi-semantic-face">
-<h4>TGSI_SEMANTIC_FACE<a class="headerlink" href="#tgsi-semantic-face" title="Permalink to this headline">¶</a></h4>
-<p>FACE is the facing bit, to store the facing information for the fragment
-shader. <tt class="docutils literal"><span class="pre">(f,</span> <span class="pre">0,</span> <span class="pre">0,</span> <span class="pre">1)</span></tt> is the format. The first component will be positive
-when the fragment is front-facing, and negative when the component is
-back-facing.</p>
-</div>
-<div class="section" id="tgsi-semantic-edgeflag">
-<h4>TGSI_SEMANTIC_EDGEFLAG<a class="headerlink" href="#tgsi-semantic-edgeflag" title="Permalink to this headline">¶</a></h4>
-<p>XXX no clue</p>
-</div>
-</div>
-</div>
-</div>
-
-
- </div>
- </div>
- </div>
- <div class="sphinxsidebar">
- <div class="sphinxsidebarwrapper">
- <h3><a href="index.html">Table Of Contents</a></h3>
- <ul>
-<li><a class="reference external" href="">TGSI</a><ul>
-<li><a class="reference external" href="#instruction-set">Instruction Set</a><ul>
-<li><a class="reference external" href="#from-gl-nv-vertex-program">From GL_NV_vertex_program</a></li>
-<li><a class="reference external" href="#from-gl-nv-vertex-program2">From GL_NV_vertex_program2</a></li>
-<li><a class="reference external" href="#from-gl-nv-gpu-program4">From GL_NV_gpu_program4</a></li>
-<li><a class="reference external" href="#from-gl-nv-geometry-program4">From GL_NV_geometry_program4</a></li>
-<li><a class="reference external" href="#from-glsl">From GLSL</a></li>
-<li><a class="reference external" href="#ps-2-x">ps_2_x</a></li>
-</ul>
-</li>
-<li><a class="reference external" href="#explanation-of-symbols-used">Explanation of symbols used</a><ul>
-<li><a class="reference external" href="#functions">Functions</a></li>
-<li><a class="reference external" href="#keywords">Keywords</a></li>
-</ul>
-</li>
-<li><a class="reference external" href="#other-tokens">Other tokens</a><ul>
-<li><a class="reference external" href="#declaration-semantic">Declaration Semantic</a><ul>
-<li><a class="reference external" href="#tgsi-semantic-position">TGSI_SEMANTIC_POSITION</a></li>
-<li><a class="reference external" href="#tgsi-semantic-color">TGSI_SEMANTIC_COLOR</a></li>
-<li><a class="reference external" href="#tgsi-semantic-bcolor">TGSI_SEMANTIC_BCOLOR</a></li>
-<li><a class="reference external" href="#tgsi-semantic-fog">TGSI_SEMANTIC_FOG</a></li>
-<li><a class="reference external" href="#tgsi-semantic-psize">TGSI_SEMANTIC_PSIZE</a></li>
-<li><a class="reference external" href="#tgsi-semantic-generic">TGSI_SEMANTIC_GENERIC</a></li>
-<li><a class="reference external" href="#tgsi-semantic-normal">TGSI_SEMANTIC_NORMAL</a></li>
-<li><a class="reference external" href="#tgsi-semantic-face">TGSI_SEMANTIC_FACE</a></li>
-<li><a class="reference external" href="#tgsi-semantic-edgeflag">TGSI_SEMANTIC_EDGEFLAG</a></li>
-</ul>
-</li>
-</ul>
-</li>
-</ul>
-</li>
-</ul>
-
- <h4>Previous topic</h4>
- <p class="topless"><a href="intro.html"
- title="previous chapter">Introduction</a></p>
- <h4>Next topic</h4>
- <p class="topless"><a href="screen.html"
- title="next chapter">Screen</a></p>
- <h3>This Page</h3>
- <ul class="this-page-menu">
- <li><a href="_sources/tgsi.txt"
- rel="nofollow">Show Source</a></li>
- </ul>
- <div id="searchbox" style="display: none">
- <h3>Quick search</h3>
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