109 lines
5.0 KiB
C
109 lines
5.0 KiB
C
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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// This file defines a number of constants and structured which are used to build up a command
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// buffer to pass to ShaderAPI for state setting and other operations. Since the prupose of these
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// command buffers is to minimize and optimize calls into shaderapi, their structure is not
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// abstract - they are built out by the calling process.
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//
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//===========================================================================//
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#ifndef COMMANDBUFFER_H
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#define COMMANDBUFFER_H
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#ifdef _WIN32
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#pragma once
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#endif
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// all commands defined with their struct
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enum CommandBufferCommand_t
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{
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// flow control commands.
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CBCMD_END = 0, // end of stream
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CBCMD_JUMP = 1, // int cmd, void *adr. jump to another
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// stream. Can be used to implement
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// non-sequentially allocated storage
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CBCMD_JSR = 2, // int cmd, void *adr. subroutine call to another stream.
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// constant setting commands
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CBCMD_SET_PIXEL_SHADER_FLOAT_CONST = 256, // int cmd,int first_reg, int nregs, float values[nregs*4]
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CBCMD_SET_VERTEX_SHADER_FLOAT_CONST = 257, // int cmd,int first_reg, int nregs, float values[nregs*4]
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CBCMD_SET_VERTEX_SHADER_FLOAT_CONST_REF = 258, // int cmd,int first_reg, int nregs, &float values[nregs*4]
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CBCMD_SETPIXELSHADERFOGPARAMS = 259, // int cmd, int regdest
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CBCMD_STORE_EYE_POS_IN_PSCONST = 260, // int cmd, int regdest
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CBCMD_COMMITPIXELSHADERLIGHTING = 261, // int cmd, int regdest
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CBCMD_SETPIXELSHADERSTATEAMBIENTLIGHTCUBE = 262, // int cmd, int regdest
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CBCMD_SETAMBIENTCUBEDYNAMICSTATEVERTEXSHADER = 263, // int cmd
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CBCMD_SET_DEPTH_FEATHERING_CONST = 264, // int cmd, int constant register, float blend scale
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// texture binding
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CBCMD_BIND_STANDARD_TEXTURE = 512, // cmd, sampler, texture id
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CBCMD_BIND_SHADERAPI_TEXTURE_HANDLE = 513, // cmd, sampler, texture handle
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// shaders
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CBCMD_SET_PSHINDEX = 1024, // cmd, idx
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CBCMD_SET_VSHINDEX = 1025, // cmd, idx
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// commands from mainline. In mainline commands no longer have
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// command id's specified like this. So I make up numbers...
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CBCMD_SET_VERTEX_SHADER_FLASHLIGHT_STATE = 2000, // cmd, int first_reg (for worldToTexture matrix)
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CBCMD_SET_PIXEL_SHADER_FLASHLIGHT_STATE = 2001, // cmd, int color reg, int atten reg, int origin reg, sampler (for flashlight texture)
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CBCMD_SET_PIXEL_SHADER_UBERLIGHT_STATE = 2002, // cmd
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CBCMD_SET_VERTEX_SHADER_NEARZFARZ_STATE = 2003, // cmd
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};
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//-----------------------------------------------------------------------------
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// Commands used by the per-instance command buffer
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// NOTE: If you add commands, you probably want to change the size of
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// CInstanceStorageBuffer and/or the choice of making it a fixed-size allocation
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// see shaderlib/baseshader.*
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//
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// FIXME!! NOTE that this whole scheme here generates a dependency of the
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// shaders on internal guts of shaderapidx8, since it's responsible for
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// setting various pixel shader + vertex shader constants based on the
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// commands below. We need to remove this dependency as it's way too restrictive
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// and puts the smarts in the wrong place (see CBICMD_SETPIXELSHADERGLINTDAMPING
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// as an example). Not going to solve this for l4d though, as I don't anticipate
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// a large amount of new shader writing for that product.
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//-----------------------------------------------------------------------------
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enum CommandBufferInstanceCommand_t
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{
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CBICMD_END = 0, // end of stream
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CBICMD_JUMP, // int cmd, void *adr. jump to another
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// stream. Can be used to implement
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// non-sequentially allocated storage
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CBICMD_JSR, // int cmd, void *adr. subroutine call to another stream.
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CBICMD_SETSKINNINGMATRICES, // int cmd
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CBICMD_SETVERTEXSHADERLOCALLIGHTING, // int cmd
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CBICMD_SETPIXELSHADERLOCALLIGHTING, // int cmd, int regdest
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CBICMD_SETVERTEXSHADERAMBIENTLIGHTCUBE, // int cmd
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CBICMD_SETPIXELSHADERAMBIENTLIGHTCUBE, // int cmd, int regdest
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CBICMD_SETPIXELSHADERAMBIENTLIGHTCUBELUMINANCE, // int cmd, int regdest
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CBICMD_SETPIXELSHADERGLINTDAMPING, // int cmd, int regdest
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CBICMD_BIND_ENV_CUBEMAP_TEXTURE, // cmd, sampler
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CBICMD_SETMODULATIONPIXELSHADERDYNAMICSTATE,
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CBICMD_SETMODULATIONPIXELSHADERDYNAMICSTATE_LINEARCOLORSPACE_LINEARSCALE, // int cmd, int constant register, Vector color2
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CBICMD_SETMODULATIONPIXELSHADERDYNAMICSTATE_LINEARCOLORSPACE, // int cmd, int constant register, Vector color2
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CBICMD_SETMODULATIONPIXELSHADERDYNAMICSTATE_LINEARSCALE, // int cmd, int constant register, Vector color2, float scale
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CBICMD_SETMODULATIONVERTEXSHADERDYNAMICSTATE, // int cmd, int constant register, Vector color2
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CBICMD_SETMODULATIONPIXELSHADERDYNAMICSTATE_IDENTITY, // int cmd, int constant register
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CBICMD_SETMODULATIONVERTEXSHADERDYNAMICSTATE_LINEARSCALE, // int cmd, int constant register, Vector color2, float scale
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// This must be last
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CBICMD_COUNT,
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};
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#endif // commandbuffer_h
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