diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 03f27cda80e..706383a0c73 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -26,9 +26,11 @@ each of the components of *dst*. When this happens, the result is said to be Instruction Set --------------- -From GL_NV_vertex_program +Core ISA ^^^^^^^^^^^^^^^^^^^^^^^^^ +These opcodes are guaranteed to be available regardless of the driver being +used. .. opcode:: ARL - Address Register Load @@ -637,10 +639,6 @@ This instruction replicates its result. Considered for removal. -From GL_NV_vertex_program2 -^^^^^^^^^^^^^^^^^^^^^^^^^^ - - .. opcode:: ARA - Address Register Add TBD @@ -827,11 +825,14 @@ This instruction replicates its result. Considered for removal. -From GL_NV_gpu_program4 +Compute ISA ^^^^^^^^^^^^^^^^^^^^^^^^ +These opcodes are primarily provided for special-use computational shaders. Support for these opcodes indicated by a special pipe capability bit (TBD). +XXX so let's discuss it, yeah? + .. opcode:: CEIL - Ceiling .. math:: @@ -989,10 +990,17 @@ Support for these opcodes indicated by a special pipe capability bit (TBD). TBD +.. note:: + + Support for CONT is determined by a special capability bit, + ``TGSI_CONT_SUPPORTED``. See :ref:`Screen` for more information. + -From GL_NV_geometry_program4 +Geometry ISA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +These opcodes are only supported in geometry shaders; they have no meaning +in any other type of shader. .. opcode:: EMIT - Emit @@ -1004,9 +1012,11 @@ From GL_NV_geometry_program4 TBD -From GLSL +GLSL ISA ^^^^^^^^^^ +These opcodes are part of :term:`GLSL`'s opcode set. Support for these +opcodes is determined by a special capability bit, ``GLSL``. .. opcode:: BGNLOOP - Begin a Loop @@ -1045,6 +1055,7 @@ This instruction replicates its result. ps_2_x ^^^^^^^^^^^^ +XXX wait what .. opcode:: CALLNZ - Subroutine Call If Not Zero @@ -1062,7 +1073,7 @@ ps_2_x .. _doubleopcodes: -Double Opcodes +Double ISA ^^^^^^^^^^^^^^^ .. opcode:: DADD - Add Double |