2009-12-20 23:00:40 +00:00
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TGSI
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====
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2010-01-04 11:52:43 +00:00
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TGSI, Tungsten Graphics Shader Infrastructure, is an intermediate language
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2009-12-20 23:00:40 +00:00
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for describing shaders. Since Gallium is inherently shaderful, shaders are
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an important part of the API. TGSI is the only intermediate representation
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used by all drivers.
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2009-12-21 23:25:15 +00:00
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2009-12-22 05:04:10 +00:00
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Instruction Set
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---------------
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2009-12-22 03:12:55 +00:00
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From GL_NV_vertex_program
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2009-12-22 05:04:10 +00:00
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^^^^^^^^^^^^^^^^^^^^^^^^^
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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ARL - Address Register Load
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:30:29 +00:00
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dst.x = \lfloor src.x\rfloor
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:30:29 +00:00
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dst.y = \lfloor src.y\rfloor
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:30:29 +00:00
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dst.z = \lfloor src.z\rfloor
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:30:29 +00:00
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dst.w = \lfloor src.w\rfloor
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2009-12-22 03:12:55 +00:00
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MOV - Move
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.. math::
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2009-12-21 23:25:15 +00:00
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dst.x = src.x
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2009-12-21 23:25:15 +00:00
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dst.y = src.y
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.z = src.z
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.w = src.w
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2009-12-22 03:12:55 +00:00
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LIT - Light Coefficients
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:32:46 +00:00
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dst.x = 1
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.y = max(src.x, 0)
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.z = (src.x > 0) ? max(src.y, 0)^{clamp(src.w, -128, 128))} : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.w = 1
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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RCP - Reciprocal
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.. math::
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2009-12-22 03:57:56 +00:00
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dst.x = \frac{1}{src.x}
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2009-12-22 03:57:56 +00:00
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dst.y = \frac{1}{src.x}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.z = \frac{1}{src.x}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.w = \frac{1}{src.x}
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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RSQ - Reciprocal Square Root
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:57:56 +00:00
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dst.x = \frac{1}{\sqrt{|src.x|}}
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2009-12-22 03:57:56 +00:00
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dst.y = \frac{1}{\sqrt{|src.x|}}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.z = \frac{1}{\sqrt{|src.x|}}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.w = \frac{1}{\sqrt{|src.x|}}
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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EXP - Approximate Exponential Base 2
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:41:09 +00:00
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dst.x = 2^{\lfloor src.x\rfloor}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:30:29 +00:00
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dst.y = src.x - \lfloor src.x\rfloor
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:41:09 +00:00
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dst.z = 2^{src.x}
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.w = 1
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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LOG - Approximate Logarithm Base 2
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:57:56 +00:00
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dst.x = \lfloor\log_2{|src.x|}\rfloor
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.y = \frac{|src.x|}{2^{\lfloor\log_2{|src.x|}\rfloor}}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.z = \log_2{|src.x|}
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2009-12-22 03:12:55 +00:00
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2009-12-22 03:57:56 +00:00
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dst.w = 1
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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MUL - Multiply
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:07:10 +00:00
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dst.x = src0.x \times src1.x
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.y = src0.y \times src1.y
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.z = src0.z \times src1.z
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.w = src0.w \times src1.w
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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ADD - Add
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.. math::
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2009-12-21 23:25:15 +00:00
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dst.x = src0.x + src1.x
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.y = src0.y + src1.y
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.z = src0.z + src1.z
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.w = src0.w + src1.w
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2009-12-22 03:12:55 +00:00
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DP3 - 3-component Dot Product
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:07:10 +00:00
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dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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DP4 - 4-component Dot Product
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:07:10 +00:00
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dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src0.w \times src1.w
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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DST - Distance Vector
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:32:46 +00:00
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dst.x = 1
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.y = src0.y \times src1.y
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.z = src0.z
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.w = src1.w
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2009-12-22 03:12:55 +00:00
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MIN - Minimum
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.. math::
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2009-12-21 23:25:15 +00:00
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dst.x = min(src0.x, src1.x)
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.y = min(src0.y, src1.y)
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.z = min(src0.z, src1.z)
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.w = min(src0.w, src1.w)
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2009-12-22 03:12:55 +00:00
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MAX - Maximum
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.. math::
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2009-12-21 23:25:15 +00:00
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dst.x = max(src0.x, src1.x)
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.y = max(src0.y, src1.y)
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.z = max(src0.z, src1.z)
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.w = max(src0.w, src1.w)
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2009-12-22 03:12:55 +00:00
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SLT - Set On Less Than
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:32:46 +00:00
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dst.x = (src0.x < src1.x) ? 1 : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.y = (src0.y < src1.y) ? 1 : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.z = (src0.z < src1.z) ? 1 : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.w = (src0.w < src1.w) ? 1 : 0
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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SGE - Set On Greater Equal Than
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:32:46 +00:00
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dst.x = (src0.x >= src1.x) ? 1 : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.y = (src0.y >= src1.y) ? 1 : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.z = (src0.z >= src1.z) ? 1 : 0
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:32:46 +00:00
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dst.w = (src0.w >= src1.w) ? 1 : 0
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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MAD - Multiply And Add
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.. math::
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2009-12-21 23:25:15 +00:00
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2009-12-22 04:07:10 +00:00
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dst.x = src0.x \times src1.x + src2.x
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.y = src0.y \times src1.y + src2.y
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.z = src0.z \times src1.z + src2.z
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2009-12-22 03:12:55 +00:00
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2009-12-22 04:07:10 +00:00
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dst.w = src0.w \times src1.w + src2.w
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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SUB - Subtract
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.. math::
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2009-12-21 23:25:15 +00:00
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dst.x = src0.x - src1.x
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.y = src0.y - src1.y
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.z = src0.z - src1.z
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.w = src0.w - src1.w
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2009-12-22 03:12:55 +00:00
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LRP - Linear Interpolate
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.. math::
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2009-12-21 23:25:15 +00:00
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2010-01-04 11:59:17 +00:00
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dst.x = src0.x \times src1.x + (1 - src0.x) \times src2.x
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2009-12-22 03:12:55 +00:00
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2010-01-04 11:59:17 +00:00
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dst.y = src0.y \times src1.y + (1 - src0.y) \times src2.y
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2009-12-22 03:12:55 +00:00
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2010-01-04 11:59:17 +00:00
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dst.z = src0.z \times src1.z + (1 - src0.z) \times src2.z
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2009-12-22 03:12:55 +00:00
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2010-01-04 11:59:17 +00:00
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dst.w = src0.w \times src1.w + (1 - src0.w) \times src2.w
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2009-12-21 23:25:15 +00:00
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2009-12-22 03:12:55 +00:00
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CND - Condition
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.. math::
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2009-12-21 23:25:15 +00:00
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dst.x = (src2.x > 0.5) ? src0.x : src1.x
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2009-12-22 03:12:55 +00:00
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2009-12-21 23:25:15 +00:00
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dst.y = (src2.y > 0.5) ? src0.y : src1.y
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2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = (src2.z > 0.5) ? src0.z : src1.z
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = (src2.w > 0.5) ? src0.w : src1.w
|
|
|
|
|
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
DP2A - 2-component Dot Product And Add
|
|
|
|
|
|
|
|
.. math::
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.x = src0.x \times src1.x + src0.y \times src1.y + src2.x
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.y = src0.x \times src1.x + src0.y \times src1.y + src2.x
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.z = src0.x \times src1.x + src0.y \times src1.y + src2.x
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.w = src0.x \times src1.x + src0.y \times src1.y + src2.x
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
FRAC - Fraction
|
|
|
|
|
|
|
|
.. math::
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.x = src.x - \lfloor src.x\rfloor
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.y = src.y - \lfloor src.y\rfloor
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.z = src.z - \lfloor src.z\rfloor
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.w = src.w - \lfloor src.w\rfloor
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
CLAMP - Clamp
|
|
|
|
|
|
|
|
.. math::
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
dst.x = clamp(src0.x, src1.x, src2.x)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = clamp(src0.y, src1.y, src2.y)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = clamp(src0.z, src1.z, src2.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = clamp(src0.w, src1.w, src2.w)
|
|
|
|
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
FLR - Floor
|
|
|
|
|
|
|
|
This is identical to ARL.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.x = \lfloor src.x\rfloor
|
|
|
|
|
|
|
|
dst.y = \lfloor src.y\rfloor
|
|
|
|
|
|
|
|
dst.z = \lfloor src.z\rfloor
|
|
|
|
|
|
|
|
dst.w = \lfloor src.w\rfloor
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ROUND - Round
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = round(src.x)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = round(src.y)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = round(src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = round(src.w)
|
|
|
|
|
|
|
|
|
2009-12-22 03:41:09 +00:00
|
|
|
EX2 - Exponential Base 2
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:41:09 +00:00
|
|
|
dst.x = 2^{src.x}
|
|
|
|
|
|
|
|
dst.y = 2^{src.x}
|
|
|
|
|
|
|
|
dst.z = 2^{src.x}
|
|
|
|
|
|
|
|
dst.w = 2^{src.x}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
LG2 - Logarithm Base 2
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
dst.x = \log_2{src.x}
|
|
|
|
|
|
|
|
dst.y = \log_2{src.x}
|
|
|
|
|
|
|
|
dst.z = \log_2{src.x}
|
|
|
|
|
|
|
|
dst.w = \log_2{src.x}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:41:09 +00:00
|
|
|
POW - Power
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:41:09 +00:00
|
|
|
dst.x = src0.x^{src1.x}
|
|
|
|
|
|
|
|
dst.y = src0.x^{src1.x}
|
|
|
|
|
|
|
|
dst.z = src0.x^{src1.x}
|
|
|
|
|
|
|
|
dst.w = src0.x^{src1.x}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
XPD - Cross Product
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.x = src0.y \times src1.z - src1.y \times src0.z
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.y = src0.z \times src1.x - src1.z \times src0.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.z = src0.x \times src1.y - src1.x \times src0.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
|
|
|
dst.w = 1
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
ABS - Absolute
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
dst.x = |src.x|
|
|
|
|
|
|
|
|
dst.y = |src.y|
|
|
|
|
|
|
|
|
dst.z = |src.z|
|
|
|
|
|
|
|
|
dst.w = |src.w|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
RCC - Reciprocal Clamped
|
|
|
|
|
|
|
|
XXX cleanup on aisle three
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
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)
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
DPH - Homogeneous Dot Product
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.x = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.y = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.z = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.w = src0.x \times src1.x + src0.y \times src1.y + src0.z \times src1.z + src1.w
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
COS - Cosine
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.x = \cos{src.x}
|
|
|
|
|
|
|
|
dst.y = \cos{src.x}
|
|
|
|
|
|
|
|
dst.z = \cos{src.x}
|
|
|
|
|
2010-01-04 12:12:27 +00:00
|
|
|
dst.w = \cos{src.x}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
DDX - Derivative Relative To X
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = partialx(src.x)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = partialx(src.y)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = partialx(src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = partialx(src.w)
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
DDY - Derivative Relative To Y
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = partialy(src.x)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = partialy(src.y)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = partialy(src.z)
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = partialy(src.w)
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
KILP - Predicated Discard
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
discard
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
PK2H - Pack Two 16-bit Floats
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
PK2US - Pack Two Unsigned 16-bit Scalars
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
PK4B - Pack Four Signed 8-bit Scalars
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
PK4UB - Pack Four Unsigned 8-bit Scalars
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
RFL - Reflection Vector
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
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
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:38:29 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SEQ - Set On Equal
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = (src0.x == src1.x) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = (src0.y == src1.y) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = (src0.z == src1.z) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = (src0.w == src1.w) ? 1 : 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SFL - Set On False
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SGT - Set On Greater Than
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = (src0.x > src1.x) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = (src0.y > src1.y) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = (src0.z > src1.z) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = (src0.w > src1.w) ? 1 : 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
SIN - Sine
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.x = \sin{src.x}
|
|
|
|
|
|
|
|
dst.y = \sin{src.x}
|
|
|
|
|
|
|
|
dst.z = \sin{src.x}
|
|
|
|
|
2010-01-04 12:12:27 +00:00
|
|
|
dst.w = \sin{src.x}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SLE - Set On Less Equal Than
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = (src0.x <= src1.x) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = (src0.y <= src1.y) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = (src0.z <= src1.z) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = (src0.w <= src1.w) ? 1 : 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SNE - Set On Not Equal
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = (src0.x != src1.x) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = (src0.y != src1.y) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = (src0.z != src1.z) ? 1 : 0
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = (src0.w != src1.w) ? 1 : 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
STR - Set On True
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = 1
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = 1
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = 1
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = 1
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TEX - Texture Lookup
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TXD - Texture Lookup with Derivatives
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TXP - Projective Texture Lookup
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
UP2H - Unpack Two 16-Bit Floats
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
UP2US - Unpack Two Unsigned 16-Bit Scalars
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
UP4B - Unpack Four Signed 8-Bit Values
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
UP4UB - Unpack Four Unsigned 8-Bit Scalars
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
X2D - 2D Coordinate Transformation
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.x = src0.x + src1.x \times src2.x + src1.y \times src2.y
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.y = src0.y + src1.x \times src2.z + src1.y \times src2.w
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.z = src0.x + src1.x \times src2.x + src1.y \times src2.y
|
2010-01-19 01:31:56 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.w = src0.y + src1.x \times src2.z + src1.y \times src2.w
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:38:29 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 05:04:10 +00:00
|
|
|
From GL_NV_vertex_program2
|
|
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ARA - Address Register Add
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ARR - Address Register Load With Round
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = round(src.x)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = round(src.y)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = round(src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = round(src.w)
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
BRA - Branch
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
pc = target
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
CAL - Subroutine Call
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
push(pc)
|
|
|
|
pc = target
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
RET - Subroutine Call Return
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
pc = pop()
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Potential restrictions:
|
2010-01-04 12:15:28 +00:00
|
|
|
* Only occurs at end of function.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SSG - Set Sign
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = (src.x > 0) ? 1 : (src.x < 0) ? -1 : 0
|
|
|
|
|
|
|
|
dst.y = (src.y > 0) ? 1 : (src.y < 0) ? -1 : 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = (src.z > 0) ? 1 : (src.z < 0) ? -1 : 0
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = (src.w > 0) ? 1 : (src.w < 0) ? -1 : 0
|
|
|
|
|
|
|
|
|
|
|
|
CMP - Compare
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
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
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
KIL - Conditional Discard
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
if (src.x < 0 || src.y < 0 || src.z < 0 || src.w < 0)
|
2009-12-21 23:25:15 +00:00
|
|
|
discard
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
SCS - Sine Cosine
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:30:29 +00:00
|
|
|
dst.x = \cos{src.x}
|
|
|
|
|
|
|
|
dst.y = \sin{src.x}
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.z = 0
|
2009-12-22 03:30:29 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.y = 1
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TXB - Texture Lookup With Bias
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
NRM - 3-component Vector Normalise
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.x = src.x / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.y = src.y / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.z = src.z / (src.x \times src.x + src.y \times src.y + src.z \times src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
|
|
|
dst.w = 1
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
DIV - Divide
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = \frac{src0.x}{src1.x}
|
|
|
|
|
|
|
|
dst.y = \frac{src0.y}{src1.y}
|
|
|
|
|
|
|
|
dst.z = \frac{src0.z}{src1.z}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = \frac{src0.w}{src1.w}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
|
|
|
|
DP2 - 2-component Dot Product
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.x = src0.x \times src1.x + src0.y \times src1.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.y = src0.x \times src1.x + src0.y \times src1.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.z = src0.x \times src1.x + src0.y \times src1.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-22 04:07:10 +00:00
|
|
|
dst.w = src0.x \times src1.x + src0.y \times src1.y
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TXL - Texture Lookup With LOD
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
BRK - Break
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
IF - If
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
BGNFOR - Begin a For-Loop
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
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.
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for cleanup / removal.
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
REP - Repeat
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ELSE - Else
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ENDIF - End If
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ENDFOR - End a For-Loop
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
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.
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for cleanup / removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ENDREP - End Repeat
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
PUSHA - Push Address Register On Stack
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
push(src.x)
|
|
|
|
push(src.y)
|
|
|
|
push(src.z)
|
|
|
|
push(src.w)
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for cleanup / removal.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
POPA - Pop Address Register From Stack
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
dst.w = pop()
|
|
|
|
dst.z = pop()
|
|
|
|
dst.y = pop()
|
|
|
|
dst.x = pop()
|
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Considered for cleanup / removal.
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 05:04:10 +00:00
|
|
|
From GL_NV_gpu_program4
|
|
|
|
^^^^^^^^^^^^^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-21 23:38:29 +00:00
|
|
|
Support for these opcodes indicated by a special pipe capability bit (TBD).
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
CEIL - Ceiling
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
dst.x = \lceil src.x\rceil
|
|
|
|
|
|
|
|
dst.y = \lceil src.y\rceil
|
|
|
|
|
|
|
|
dst.z = \lceil src.z\rceil
|
|
|
|
|
|
|
|
dst.w = \lceil src.w\rceil
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
I2F - Integer To Float
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = (float) src.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = (float) src.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = (float) src.z
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = (float) src.w
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
NOT - Bitwise Not
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = ~src.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = ~src.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = ~src.z
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = ~src.w
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TRUNC - Truncate
|
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = trunc(src.x)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = trunc(src.y)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = trunc(src.z)
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = trunc(src.w)
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SHL - Shift Left
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = src0.x << src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = src0.y << src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = src0.z << src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = src0.w << src1.x
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
SHR - Shift Right
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = src0.x >> src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = src0.y >> src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = src0.z >> src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = src0.w >> src1.x
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
AND - Bitwise And
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = src0.x & src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = src0.y & src1.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = src0.z & src1.z
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = src0.w & src1.w
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
OR - Bitwise Or
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.x = src0.x | src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.y = src0.y | src1.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.z = src0.z | src1.z
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
dst.w = src0.w | src1.w
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
MOD - Modulus
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.x = src0.x \bmod src1.x
|
|
|
|
|
|
|
|
dst.y = src0.y \bmod src1.y
|
|
|
|
|
|
|
|
dst.z = src0.z \bmod src1.z
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
dst.w = src0.w \bmod src1.w
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
|
|
|
|
XOR - Bitwise Xor
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2010-01-19 01:37:25 +00:00
|
|
|
dst.x = src0.x \oplus src1.x
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2010-01-19 01:37:25 +00:00
|
|
|
dst.y = src0.y \oplus src1.y
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2010-01-19 01:37:25 +00:00
|
|
|
dst.z = src0.z \oplus src1.z
|
2009-12-22 04:32:46 +00:00
|
|
|
|
2010-01-19 01:37:25 +00:00
|
|
|
dst.w = src0.w \oplus src1.w
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
SAD - Sum Of Absolute Differences
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:12:55 +00:00
|
|
|
.. math::
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
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
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TXF - Texel Fetch
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
TXQ - Texture Size Query
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
CONT - Continue
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 05:04:10 +00:00
|
|
|
From GL_NV_geometry_program4
|
|
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
EMIT - Emit
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ENDPRIM - End Primitive
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 05:04:10 +00:00
|
|
|
From GLSL
|
|
|
|
^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
BGNLOOP - Begin a Loop
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
BGNSUB - Begin Subroutine
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ENDLOOP - End a Loop
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ENDSUB - End Subroutine
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
NOP - No Operation
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2010-01-04 12:23:41 +00:00
|
|
|
Do nothing.
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
NRM4 - 4-component Vector Normalise
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
.. math::
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
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}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
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}
|
2009-12-22 03:12:55 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
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}
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
ps_2_x
|
2009-12-22 05:04:10 +00:00
|
|
|
^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
CALLNZ - Subroutine Call If Not Zero
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
IFC - If
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
BREAKC - Break Conditional
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
TBD
|
|
|
|
|
2010-01-25 23:23:04 +00:00
|
|
|
Double Opcodes
|
|
|
|
^^^^^^^^^^^^^^^
|
|
|
|
|
|
|
|
DADD - Add Double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src0.xy + src1.xy
|
|
|
|
|
|
|
|
dst.zw = src0.zw + src1.zw
|
|
|
|
|
|
|
|
|
|
|
|
DDIV - Divide Double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src0.xy / src1.xy
|
|
|
|
|
|
|
|
dst.zw = src0.zw / src1.zw
|
|
|
|
|
|
|
|
DSEQ - Set Double on Equal
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src0.xy == src1.xy ? 1.0F : 0.0F
|
|
|
|
|
|
|
|
dst.zw = src0.zw == src1.zw ? 1.0F : 0.0F
|
|
|
|
|
|
|
|
DSLT - Set Double on Less than
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src0.xy < src1.xy ? 1.0F : 0.0F
|
|
|
|
|
|
|
|
dst.zw = src0.zw < src1.zw ? 1.0F : 0.0F
|
|
|
|
|
|
|
|
DFRAC - Double Fraction
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src.xy - \lfloor src.xy\rfloor
|
|
|
|
|
|
|
|
dst.zw = src.zw - \lfloor src.zw\rfloor
|
|
|
|
|
|
|
|
|
|
|
|
DFRACEXP - Convert Double Number to Fractional and Integral Components
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst0.xy = frexp(src.xy, dst1.xy)
|
|
|
|
|
|
|
|
dst0.zw = frexp(src.zw, dst1.zw)
|
|
|
|
|
|
|
|
DLDEXP - Multiple Double Number by Integral Power of 2
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = ldexp(src0.xy, src1.xy)
|
|
|
|
|
|
|
|
dst.zw = ldexp(src0.zw, src1.zw)
|
|
|
|
|
|
|
|
DMIN - Minimum Double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = min(src0.xy, src1.xy)
|
|
|
|
|
|
|
|
dst.zw = min(src0.zw, src1.zw)
|
|
|
|
|
|
|
|
DMAX - Maximum Double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = max(src0.xy, src1.xy)
|
|
|
|
|
|
|
|
dst.zw = max(src0.zw, src1.zw)
|
|
|
|
|
|
|
|
DMUL - Multiply Double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src0.xy \times src1.xy
|
|
|
|
|
|
|
|
dst.zw = src0.zw \times src1.zw
|
|
|
|
|
|
|
|
|
|
|
|
DMAD - Multiply And Add Doubles
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = src0.xy \times src1.xy + src2.xy
|
|
|
|
|
|
|
|
dst.zw = src0.zw \times src1.zw + src2.zw
|
|
|
|
|
|
|
|
|
|
|
|
DRCP - Reciprocal Double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = \frac{1}{src.xy}
|
|
|
|
|
|
|
|
dst.zw = \frac{1}{src.zw}
|
|
|
|
|
|
|
|
DSQRT - Square root double
|
|
|
|
|
|
|
|
.. math::
|
|
|
|
|
|
|
|
dst.xy = \sqrt{src.xy}
|
|
|
|
|
|
|
|
dst.zw = \sqrt{src.zw}
|
|
|
|
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
Explanation of symbols used
|
2009-12-22 05:04:10 +00:00
|
|
|
------------------------------
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
Functions
|
2009-12-22 05:04:10 +00:00
|
|
|
^^^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
:math:`|x|` Absolute value of `x`.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
:math:`\lceil x \rceil` Ceiling of `x`.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
clamp(x,y,z) Clamp x between y and z.
|
|
|
|
(x < y) ? y : (x > z) ? z : x
|
|
|
|
|
2009-12-22 03:41:09 +00:00
|
|
|
:math:`\lfloor x\rfloor` Floor of `x`.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-22 03:57:56 +00:00
|
|
|
:math:`\log_2{x}` Logarithm of `x`, base 2.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
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.
|
|
|
|
|
2009-12-22 03:41:09 +00:00
|
|
|
:math:`x^y` `x` to the power `y`.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
push(x) Push x on stack.
|
|
|
|
|
|
|
|
round(x) Round x.
|
|
|
|
|
2010-01-04 12:21:32 +00:00
|
|
|
trunc(x) Truncate x, i.e. drop the fraction bits.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
Keywords
|
2009-12-22 05:04:10 +00:00
|
|
|
^^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
Other tokens
|
2009-12-22 05:04:10 +00:00
|
|
|
---------------
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
2009-12-22 04:32:46 +00:00
|
|
|
Declaration Semantic
|
2009-12-22 05:04:10 +00:00
|
|
|
^^^^^^^^^^^^^^^^^^^^^^^^
|
2009-12-21 23:25:15 +00:00
|
|
|
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
2009-12-24 07:36:06 +00:00
|
|
|
TGSI_SEMANTIC_POSITION
|
|
|
|
""""""""""""""""""""""
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-24 07:36:06 +00:00
|
|
|
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.
|
2009-12-21 23:25:15 +00:00
|
|
|
|
2009-12-24 07:36:06 +00:00
|
|
|
As a vertex shader output, position should be scaled to the viewport. When
|
2010-01-21 04:36:14 +00:00
|
|
|
used in fragment shaders, position will be in window coordinates. The convention
|
|
|
|
used depends on the FS_COORD_ORIGIN and FS_COORD_PIXEL_CENTER properties.
|
2009-12-24 07:36:06 +00:00
|
|
|
|
|
|
|
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
|
|
|
|
""""""""""""""""""""
|
|
|
|
|
2010-01-04 12:38:58 +00:00
|
|
|
Vertex normal; could be used to implement per-pixel lighting for legacy APIs
|
|
|
|
that allow mixing fixed-function and programmable stages.
|
2009-12-24 07:36:06 +00:00
|
|
|
|
|
|
|
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
|
2010-01-21 04:36:14 +00:00
|
|
|
|
|
|
|
|
|
|
|
Properties
|
|
|
|
^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
|
|
|
|
|
|
|
Properties are general directives that apply to the whole TGSI program.
|
|
|
|
|
|
|
|
FS_COORD_ORIGIN
|
|
|
|
"""""""""""""""
|
|
|
|
|
|
|
|
Specifies the fragment shader TGSI_SEMANTIC_POSITION coordinate origin.
|
|
|
|
The default value is UPPER_LEFT.
|
|
|
|
|
|
|
|
If UPPER_LEFT, the position will be (0,0) at the upper left corner and
|
|
|
|
increase downward and rightward.
|
|
|
|
If LOWER_LEFT, the position will be (0,0) at the lower left corner and
|
|
|
|
increase upward and rightward.
|
|
|
|
|
|
|
|
OpenGL defaults to LOWER_LEFT, and is configurable with the
|
|
|
|
GL_ARB_fragment_coord_conventions extension.
|
|
|
|
|
|
|
|
DirectX 9/10 use UPPER_LEFT.
|
|
|
|
|
|
|
|
FS_COORD_PIXEL_CENTER
|
|
|
|
"""""""""""""""""""""
|
|
|
|
|
|
|
|
Specifies the fragment shader TGSI_SEMANTIC_POSITION pixel center convention.
|
|
|
|
The default value is HALF_INTEGER.
|
|
|
|
|
|
|
|
If HALF_INTEGER, the fractionary part of the position will be 0.5
|
|
|
|
If INTEGER, the fractionary part of the position will be 0.0
|
|
|
|
|
|
|
|
Note that this does not affect the set of fragments generated by
|
|
|
|
rasterization, which is instead controlled by gl_rasterization_rules in the
|
|
|
|
rasterizer.
|
|
|
|
|
|
|
|
OpenGL defaults to HALF_INTEGER, and is configurable with the
|
|
|
|
GL_ARB_fragment_coord_conventions extension.
|
|
|
|
|
|
|
|
DirectX 9 uses INTEGER.
|
|
|
|
DirectX 10 uses HALF_INTEGER.
|
2010-02-02 15:14:40 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Texture Sampling and Texture Formats
|
|
|
|
------------------------------------
|
|
|
|
|
|
|
|
This table shows how texture image components are returned as (x,y,z,w)
|
|
|
|
tuples by TGSI texture instructions, such as TEX, TXD, and TXP.
|
|
|
|
For reference, OpenGL and Direct3D convensions are shown as well::
|
|
|
|
|
|
|
|
Texture Components Gallium OpenGL DX9
|
|
|
|
---------------------------------------------------------
|
|
|
|
R,G,B,A (R,G,B,A) (R,G,B,A) (R,G,B,A)
|
|
|
|
R,G,B (R,G,B,1) (R,G,B,1) (R,G,B,1)
|
|
|
|
R,G tbd (R,G,0,1) (R,G,1,1)
|
|
|
|
R tbd (R,0,0,1) (R,1,1,1)
|
|
|
|
A (0,0,0,A) (0,0,0,A) (0,0,0,A)
|
|
|
|
L (L,L,L,1) (L,L,L,1) (L,L,L,1)
|
|
|
|
LA (L,L,L,A) (L,L,L,A) (L,L,L,A)
|
|
|
|
I (I,I,I,I) (I,I,I,I) n/a
|
|
|
|
UV tbd (0,0,0,1)* (U,V,1,1)
|
|
|
|
Z tbd (Z,Z,Z,Z) or (0,Z,0,1)
|
|
|
|
(Z,Z,Z,1) or
|
|
|
|
(0,0,0,Z)**
|
|
|
|
|
|
|
|
Footnotes:
|
|
|
|
* per http://www.opengl.org/registry/specs/ATI/envmap_bumpmap.txt
|
|
|
|
** depends on GL_DEPTH_TEXTURE_MODE state
|
|
|
|
|