1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
29 * Command construction utility for the SVGA3D protocol used by
30 * the VMware SVGA device, based on the svgautil library.
33 #include "svga_winsys.h"
34 #include "svga_resource_buffer.h"
35 #include "svga_resource_texture.h"
36 #include "svga_surface.h"
40 *----------------------------------------------------------------------
42 * surface_to_surfaceid --
44 * Utility function for surface ids.
45 * Can handle null surface. Does a surface_reallocation so you need
46 * to have allocated the fifo space before converting.
49 * param flags mask of SVGA_RELOC_READ / _WRITE
55 * One surface relocation is performed for texture handle.
57 *----------------------------------------------------------------------
61 surface_to_surfaceid(struct svga_winsys_context
*swc
, // IN
62 struct pipe_surface
*surface
, // IN
63 SVGA3dSurfaceImageId
*id
, // OUT
67 struct svga_surface
*s
= svga_surface(surface
);
68 swc
->surface_relocation(swc
, &id
->sid
, NULL
, s
->handle
, flags
);
69 id
->face
= s
->real_layer
; /* faces have the same order */
70 id
->mipmap
= s
->real_level
;
73 swc
->surface_relocation(swc
, &id
->sid
, NULL
, NULL
, flags
);
81 *----------------------------------------------------------------------
83 * SVGA3D_FIFOReserve --
85 * Reserve space for an SVGA3D FIFO command.
87 * The 2D SVGA commands have been around for a while, so they
88 * have a rather asymmetric structure. The SVGA3D protocol is
89 * more uniform: each command begins with a header containing the
90 * command number and the full size.
92 * This is a convenience wrapper around SVGA_FIFOReserve. We
93 * reserve space for the whole command, and write the header.
95 * This function must be paired with SVGA_FIFOCommitAll().
98 * Returns a pointer to the space reserved for command-specific
99 * data. It must be 'cmdSize' bytes long.
102 * Begins a FIFO reservation.
104 *----------------------------------------------------------------------
108 SVGA3D_FIFOReserve(struct svga_winsys_context
*swc
,
110 uint32 cmdSize
, // IN
111 uint32 nr_relocs
) // IN
113 SVGA3dCmdHeader
*header
;
115 header
= swc
->reserve(swc
, sizeof *header
+ cmdSize
, nr_relocs
);
120 header
->size
= cmdSize
;
127 SVGA_FIFOCommitAll(struct svga_winsys_context
*swc
)
134 *----------------------------------------------------------------------
136 * SVGA3D_DefineContext --
138 * Create a new context, to be referred to with the provided ID.
140 * Context objects encapsulate all render state, and shader
141 * objects are per-context.
143 * Surfaces are not per-context. The same surface can be shared
144 * between multiple contexts, and surface operations can occur
147 * If the provided context ID already existed, it is redefined.
149 * Context IDs are arbitrary small non-negative integers,
150 * global to the entire SVGA device.
158 *----------------------------------------------------------------------
162 SVGA3D_DefineContext(struct svga_winsys_context
*swc
) // IN
164 SVGA3dCmdDefineContext
*cmd
;
166 cmd
= SVGA3D_FIFOReserve(swc
,
167 SVGA_3D_CMD_CONTEXT_DEFINE
, sizeof *cmd
, 0);
169 return PIPE_ERROR_OUT_OF_MEMORY
;
180 *----------------------------------------------------------------------
182 * SVGA3D_DestroyContext --
184 * Delete a context created with SVGA3D_DefineContext.
192 *----------------------------------------------------------------------
196 SVGA3D_DestroyContext(struct svga_winsys_context
*swc
) // IN
198 SVGA3dCmdDestroyContext
*cmd
;
200 cmd
= SVGA3D_FIFOReserve(swc
,
201 SVGA_3D_CMD_CONTEXT_DESTROY
, sizeof *cmd
, 0);
203 return PIPE_ERROR_OUT_OF_MEMORY
;
214 *----------------------------------------------------------------------
216 * SVGA3D_BeginDefineSurface --
218 * Begin a SURFACE_DEFINE command. This reserves space for it in
219 * the FIFO, and returns pointers to the command's faces and
222 * This function must be paired with SVGA_FIFOCommitAll().
223 * The faces and mipSizes arrays are initialized to zero.
225 * This creates a "surface" object in the SVGA3D device,
226 * with the provided surface ID (sid). Surfaces are generic
227 * containers for host VRAM objects like textures, vertex
228 * buffers, and depth/stencil buffers.
230 * Surfaces are hierarchical:
232 * - Surface may have multiple faces (for cube maps)
234 * - Each face has a list of mipmap levels
236 * - Each mipmap image may have multiple volume
237 * slices, if the image is three dimensional.
239 * - Each slice is a 2D array of 'blocks'
241 * - Each block may be one or more pixels.
242 * (Usually 1, more for DXT or YUV formats.)
244 * Surfaces are generic host VRAM objects. The SVGA3D device
245 * may optimize surfaces according to the format they were
246 * created with, but this format does not limit the ways in
247 * which the surface may be used. For example, a depth surface
248 * can be used as a texture, or a floating point image may
249 * be used as a vertex buffer. Some surface usages may be
250 * lower performance, due to software emulation, but any
251 * usage should work with any surface.
253 * If 'sid' is already defined, the old surface is deleted
254 * and this new surface replaces it.
256 * Surface IDs are arbitrary small non-negative integers,
257 * global to the entire SVGA device.
260 * Returns pointers to arrays allocated in the FIFO for 'faces'
264 * Begins a FIFO reservation.
266 *----------------------------------------------------------------------
270 SVGA3D_BeginDefineSurface(struct svga_winsys_context
*swc
,
271 struct svga_winsys_surface
*sid
, // IN
272 SVGA3dSurfaceFlags flags
, // IN
273 SVGA3dSurfaceFormat format
, // IN
274 SVGA3dSurfaceFace
**faces
, // OUT
275 SVGA3dSize
**mipSizes
, // OUT
276 uint32 numMipSizes
) // IN
278 SVGA3dCmdDefineSurface
*cmd
;
280 cmd
= SVGA3D_FIFOReserve(swc
,
281 SVGA_3D_CMD_SURFACE_DEFINE
, sizeof *cmd
+
282 sizeof **mipSizes
* numMipSizes
, 1);
284 return PIPE_ERROR_OUT_OF_MEMORY
;
286 swc
->surface_relocation(swc
, &cmd
->sid
, NULL
, sid
,
287 SVGA_RELOC_WRITE
| SVGA_RELOC_INTERNAL
);
288 cmd
->surfaceFlags
= flags
;
289 cmd
->format
= format
;
291 *faces
= &cmd
->face
[0];
292 *mipSizes
= (SVGA3dSize
*) &cmd
[1];
294 memset(*faces
, 0, sizeof **faces
* SVGA3D_MAX_SURFACE_FACES
);
295 memset(*mipSizes
, 0, sizeof **mipSizes
* numMipSizes
);
302 *----------------------------------------------------------------------
304 * SVGA3D_DefineSurface2D --
306 * This is a simplified version of SVGA3D_BeginDefineSurface(),
307 * which does not support cube maps, mipmaps, or volume textures.
315 *----------------------------------------------------------------------
319 SVGA3D_DefineSurface2D(struct svga_winsys_context
*swc
, // IN
320 struct svga_winsys_surface
*sid
, // IN
323 SVGA3dSurfaceFormat format
) // IN
325 SVGA3dSize
*mipSizes
;
326 SVGA3dSurfaceFace
*faces
;
329 ret
= SVGA3D_BeginDefineSurface(swc
,
330 sid
, 0, format
, &faces
, &mipSizes
, 1);
334 faces
[0].numMipLevels
= 1;
336 mipSizes
[0].width
= width
;
337 mipSizes
[0].height
= height
;
338 mipSizes
[0].depth
= 1;
347 *----------------------------------------------------------------------
349 * SVGA3D_DestroySurface --
351 * Release the host VRAM encapsulated by a particular surface ID.
359 *----------------------------------------------------------------------
363 SVGA3D_DestroySurface(struct svga_winsys_context
*swc
,
364 struct svga_winsys_surface
*sid
) // IN
366 SVGA3dCmdDestroySurface
*cmd
;
368 cmd
= SVGA3D_FIFOReserve(swc
,
369 SVGA_3D_CMD_SURFACE_DESTROY
, sizeof *cmd
, 1);
371 return PIPE_ERROR_OUT_OF_MEMORY
;
373 swc
->surface_relocation(swc
, &cmd
->sid
, NULL
, sid
,
374 SVGA_RELOC_WRITE
| SVGA_RELOC_INTERNAL
);
382 *----------------------------------------------------------------------
384 * SVGA3D_SurfaceDMA--
386 * Emit a SURFACE_DMA command.
388 * When the SVGA3D device asynchronously processes this FIFO
389 * command, a DMA operation is performed between host VRAM and
390 * a generic SVGAGuestPtr. The guest pointer may refer to guest
391 * VRAM (provided by the SVGA PCI device) or to guest system
392 * memory that has been set up as a Guest Memory Region (GMR)
393 * by the SVGA device.
395 * The guest's DMA buffer must remain valid (not freed, paged out,
396 * or overwritten) until the host has finished processing this
397 * command. The guest can determine that the host has finished
398 * by using the SVGA device's FIFO Fence mechanism.
400 * The guest's image buffer can be an arbitrary size and shape.
401 * Guest image data is interpreted according to the SVGA3D surface
402 * format specified when the surface was defined.
404 * The caller may optionally define the guest image's pitch.
405 * guestImage->pitch can either be zero (assume image is tightly
406 * packed) or it must be the number of bytes between vertically
407 * adjacent image blocks.
409 * The provided copybox list specifies which regions of the source
410 * image are to be copied, and where they appear on the destination.
412 * NOTE: srcx/srcy are always on the guest image and x/y are
413 * always on the host image, regardless of the actual transfer
416 * For efficiency, the SVGA3D device is free to copy more data
417 * than specified. For example, it may round copy boxes outwards
418 * such that they lie on particular alignment boundaries.
420 *----------------------------------------------------------------------
424 SVGA3D_SurfaceDMA(struct svga_winsys_context
*swc
,
425 struct svga_transfer
*st
, // IN
426 SVGA3dTransferType transfer
, // IN
427 const SVGA3dCopyBox
*boxes
, // IN
428 uint32 numBoxes
, // IN
429 SVGA3dSurfaceDMAFlags flags
) // IN
431 struct svga_texture
*texture
= svga_texture(st
->base
.resource
);
432 SVGA3dCmdSurfaceDMA
*cmd
;
433 SVGA3dCmdSurfaceDMASuffix
*pSuffix
;
434 uint32 boxesSize
= sizeof *boxes
* numBoxes
;
435 unsigned region_flags
;
436 unsigned surface_flags
;
438 if (transfer
== SVGA3D_WRITE_HOST_VRAM
) {
439 region_flags
= SVGA_RELOC_READ
;
440 surface_flags
= SVGA_RELOC_WRITE
;
442 else if (transfer
== SVGA3D_READ_HOST_VRAM
) {
443 region_flags
= SVGA_RELOC_WRITE
;
444 surface_flags
= SVGA_RELOC_READ
;
448 return PIPE_ERROR_BAD_INPUT
;
451 cmd
= SVGA3D_FIFOReserve(swc
,
452 SVGA_3D_CMD_SURFACE_DMA
,
453 sizeof *cmd
+ boxesSize
+ sizeof *pSuffix
,
456 return PIPE_ERROR_OUT_OF_MEMORY
;
458 swc
->region_relocation(swc
, &cmd
->guest
.ptr
, st
->hwbuf
, 0, region_flags
);
459 cmd
->guest
.pitch
= st
->base
.stride
;
461 swc
->surface_relocation(swc
, &cmd
->host
.sid
, NULL
,
462 texture
->handle
, surface_flags
);
463 cmd
->host
.face
= st
->slice
; /* PIPE_TEX_FACE_* and SVGA3D_CUBEFACE_* match */
464 cmd
->host
.mipmap
= st
->base
.level
;
466 cmd
->transfer
= transfer
;
468 memcpy(&cmd
[1], boxes
, boxesSize
);
470 pSuffix
= (SVGA3dCmdSurfaceDMASuffix
*)((uint8_t*)cmd
+ sizeof *cmd
+ boxesSize
);
471 pSuffix
->suffixSize
= sizeof *pSuffix
;
472 pSuffix
->maximumOffset
= st
->hw_nblocksy
*st
->base
.stride
;
473 pSuffix
->flags
= flags
;
476 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
483 SVGA3D_BufferDMA(struct svga_winsys_context
*swc
,
484 struct svga_winsys_buffer
*guest
,
485 struct svga_winsys_surface
*host
,
486 SVGA3dTransferType transfer
, // IN
488 uint32 guest_offset
, // IN
489 uint32 host_offset
, // IN
490 SVGA3dSurfaceDMAFlags flags
) // IN
492 SVGA3dCmdSurfaceDMA
*cmd
;
494 SVGA3dCmdSurfaceDMASuffix
*pSuffix
;
495 unsigned region_flags
;
496 unsigned surface_flags
;
498 assert(!swc
->have_gb_objects
);
500 if (transfer
== SVGA3D_WRITE_HOST_VRAM
) {
501 region_flags
= SVGA_RELOC_READ
;
502 surface_flags
= SVGA_RELOC_WRITE
;
504 else if (transfer
== SVGA3D_READ_HOST_VRAM
) {
505 region_flags
= SVGA_RELOC_WRITE
;
506 surface_flags
= SVGA_RELOC_READ
;
510 return PIPE_ERROR_BAD_INPUT
;
513 cmd
= SVGA3D_FIFOReserve(swc
,
514 SVGA_3D_CMD_SURFACE_DMA
,
515 sizeof *cmd
+ sizeof *box
+ sizeof *pSuffix
,
518 return PIPE_ERROR_OUT_OF_MEMORY
;
520 swc
->region_relocation(swc
, &cmd
->guest
.ptr
, guest
, 0, region_flags
);
521 cmd
->guest
.pitch
= 0;
523 swc
->surface_relocation(swc
, &cmd
->host
.sid
,
524 NULL
, host
, surface_flags
);
526 cmd
->host
.mipmap
= 0;
528 cmd
->transfer
= transfer
;
530 box
= (SVGA3dCopyBox
*)&cmd
[1];
531 box
->x
= host_offset
;
537 box
->srcx
= guest_offset
;
541 pSuffix
= (SVGA3dCmdSurfaceDMASuffix
*)((uint8_t*)cmd
+ sizeof *cmd
+ sizeof *box
);
542 pSuffix
->suffixSize
= sizeof *pSuffix
;
543 pSuffix
->maximumOffset
= guest_offset
+ size
;
544 pSuffix
->flags
= flags
;
547 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
554 *----------------------------------------------------------------------
556 * SVGA3D_SetRenderTarget --
558 * Bind a surface object to a particular render target attachment
559 * point on the current context. Render target attachment points
560 * exist for color buffers, a depth buffer, and a stencil buffer.
562 * The SVGA3D device is quite lenient about the types of surfaces
563 * that may be used as render targets. The color buffers must
564 * all be the same size, but the depth and stencil buffers do not
565 * have to be the same size as the color buffer. All attachments
568 * Some combinations of render target formats may require software
569 * emulation, depending on the capabilities of the host graphics
570 * API and graphics hardware.
578 *----------------------------------------------------------------------
582 SVGA3D_SetRenderTarget(struct svga_winsys_context
*swc
,
583 SVGA3dRenderTargetType type
, // IN
584 struct pipe_surface
*surface
) // IN
586 SVGA3dCmdSetRenderTarget
*cmd
;
588 cmd
= SVGA3D_FIFOReserve(swc
,
589 SVGA_3D_CMD_SETRENDERTARGET
, sizeof *cmd
, 1);
591 return PIPE_ERROR_OUT_OF_MEMORY
;
595 surface_to_surfaceid(swc
, surface
, &cmd
->target
, SVGA_RELOC_WRITE
);
603 *----------------------------------------------------------------------
605 * SVGA3D_DefineShader --
607 * Upload the bytecode for a new shader. The bytecode is "SVGA3D
608 * format", which is theoretically a binary-compatible superset
609 * of Microsoft's DirectX shader bytecode. In practice, the
610 * SVGA3D bytecode doesn't yet have any extensions to DirectX's
613 * The SVGA3D device supports shader models 1.1 through 2.0.
615 * The caller chooses a shader ID (small positive integer) by
616 * which this shader will be identified in future commands. This
617 * ID is in a namespace which is per-context and per-shader-type.
619 * 'bytecodeLen' is specified in bytes. It must be a multiple of 4.
627 *----------------------------------------------------------------------
631 SVGA3D_DefineShader(struct svga_winsys_context
*swc
,
633 SVGA3dShaderType type
, // IN
634 const uint32
*bytecode
, // IN
635 uint32 bytecodeLen
) // IN
637 SVGA3dCmdDefineShader
*cmd
;
639 assert(bytecodeLen
% 4 == 0);
641 cmd
= SVGA3D_FIFOReserve(swc
,
642 SVGA_3D_CMD_SHADER_DEFINE
, sizeof *cmd
+ bytecodeLen
,
645 return PIPE_ERROR_OUT_OF_MEMORY
;
650 memcpy(&cmd
[1], bytecode
, bytecodeLen
);
658 *----------------------------------------------------------------------
660 * SVGA3D_DestroyShader --
662 * Delete a shader that was created by SVGA3D_DefineShader. If
663 * the shader was the current vertex or pixel shader for its
664 * context, rendering results are undefined until a new shader is
673 *----------------------------------------------------------------------
677 SVGA3D_DestroyShader(struct svga_winsys_context
*swc
,
679 SVGA3dShaderType type
) // IN
681 SVGA3dCmdDestroyShader
*cmd
;
683 cmd
= SVGA3D_FIFOReserve(swc
,
684 SVGA_3D_CMD_SHADER_DESTROY
, sizeof *cmd
,
687 return PIPE_ERROR_OUT_OF_MEMORY
;
699 *----------------------------------------------------------------------
701 * SVGA3D_SetShaderConst --
703 * Set the value of a shader constant.
705 * Shader constants are analogous to uniform variables in GLSL,
706 * except that they belong to the render context rather than to
707 * an individual shader.
709 * Constants may have one of three types: A 4-vector of floats,
710 * a 4-vector of integers, or a single boolean flag.
718 *----------------------------------------------------------------------
722 SVGA3D_SetShaderConst(struct svga_winsys_context
*swc
,
724 SVGA3dShaderType type
, // IN
725 SVGA3dShaderConstType ctype
, // IN
726 const void *value
) // IN
728 SVGA3dCmdSetShaderConst
*cmd
;
730 cmd
= SVGA3D_FIFOReserve(swc
,
731 SVGA_3D_CMD_SET_SHADER_CONST
, sizeof *cmd
,
734 return PIPE_ERROR_OUT_OF_MEMORY
;
743 case SVGA3D_CONST_TYPE_FLOAT
:
744 case SVGA3D_CONST_TYPE_INT
:
745 memcpy(&cmd
->values
, value
, sizeof cmd
->values
);
748 case SVGA3D_CONST_TYPE_BOOL
:
749 memset(&cmd
->values
, 0, sizeof cmd
->values
);
750 cmd
->values
[0] = *(uint32
*)value
;
765 *----------------------------------------------------------------------
767 * SVGA3D_SetShaderConsts --
769 * Set the value of successive shader constants.
771 * Shader constants are analogous to uniform variables in GLSL,
772 * except that they belong to the render context rather than to
773 * an individual shader.
775 * Constants may have one of three types: A 4-vector of floats,
776 * a 4-vector of integers, or a single boolean flag.
784 *----------------------------------------------------------------------
788 SVGA3D_SetShaderConsts(struct svga_winsys_context
*swc
,
790 uint32 numRegs
, // IN
791 SVGA3dShaderType type
, // IN
792 SVGA3dShaderConstType ctype
, // IN
793 const void *values
) // IN
795 SVGA3dCmdSetShaderConst
*cmd
;
797 cmd
= SVGA3D_FIFOReserve(swc
,
798 SVGA_3D_CMD_SET_SHADER_CONST
,
799 sizeof *cmd
+ (numRegs
- 1) * sizeof cmd
->values
,
802 return PIPE_ERROR_OUT_OF_MEMORY
;
809 memcpy(&cmd
->values
, values
, numRegs
* sizeof cmd
->values
);
821 *----------------------------------------------------------------------
823 * SVGA3D_SetShader --
825 * Switch active shaders. This binds a new vertex or pixel shader
826 * to the specified context.
828 * A shader ID of SVGA3D_INVALID_ID unbinds any shader, switching
829 * back to the fixed function vertex or pixel pipeline.
837 *----------------------------------------------------------------------
841 SVGA3D_SetShader(struct svga_winsys_context
*swc
,
842 SVGA3dShaderType type
, // IN
845 SVGA3dCmdSetShader
*cmd
;
847 assert(type
== SVGA3D_SHADERTYPE_VS
|| type
== SVGA3D_SHADERTYPE_PS
);
849 cmd
= SVGA3D_FIFOReserve(swc
,
850 SVGA_3D_CMD_SET_SHADER
, sizeof *cmd
,
853 return PIPE_ERROR_OUT_OF_MEMORY
;
865 *----------------------------------------------------------------------
867 * SVGA3D_BeginClear --
869 * Begin a CLEAR command. This reserves space for it in the FIFO,
870 * and returns a pointer to the command's rectangle array. This
871 * function must be paired with SVGA_FIFOCommitAll().
873 * Clear is a rendering operation which fills a list of
874 * rectangles with constant values on all render target types
875 * indicated by 'flags'.
877 * Clear is not affected by clipping, depth test, or other
878 * render state which affects the fragment pipeline.
884 * May write to attached render target surfaces.
886 *----------------------------------------------------------------------
890 SVGA3D_BeginClear(struct svga_winsys_context
*swc
,
891 SVGA3dClearFlag flags
, // IN
894 uint32 stencil
, // IN
895 SVGA3dRect
**rects
, // OUT
896 uint32 numRects
) // IN
900 cmd
= SVGA3D_FIFOReserve(swc
,
902 sizeof *cmd
+ sizeof **rects
* numRects
,
905 return PIPE_ERROR_OUT_OF_MEMORY
;
908 cmd
->clearFlag
= flags
;
911 cmd
->stencil
= stencil
;
912 *rects
= (SVGA3dRect
*) &cmd
[1];
919 *----------------------------------------------------------------------
921 * SVGA3D_ClearRect --
923 * This is a simplified version of SVGA3D_BeginClear().
931 *----------------------------------------------------------------------
935 SVGA3D_ClearRect(struct svga_winsys_context
*swc
,
936 SVGA3dClearFlag flags
, // IN
939 uint32 stencil
, // IN
948 ret
= SVGA3D_BeginClear(swc
, flags
, color
, depth
, stencil
, &rect
, 1);
950 return PIPE_ERROR_OUT_OF_MEMORY
;
952 memset(rect
, 0, sizeof *rect
);
964 *----------------------------------------------------------------------
966 * SVGA3D_BeginDrawPrimitives --
968 * Begin a DRAW_PRIMITIVES command. This reserves space for it in
969 * the FIFO, and returns a pointer to the command's arrays.
970 * This function must be paired with SVGA_FIFOCommitAll().
972 * Drawing commands consist of two variable-length arrays:
973 * SVGA3dVertexDecl elements declare a set of vertex buffers to
974 * use while rendering, and SVGA3dPrimitiveRange elements specify
975 * groups of primitives each with an optional index buffer.
977 * The decls and ranges arrays are initialized to zero.
983 * May write to attached render target surfaces.
985 *----------------------------------------------------------------------
989 SVGA3D_BeginDrawPrimitives(struct svga_winsys_context
*swc
,
990 SVGA3dVertexDecl
**decls
, // OUT
991 uint32 numVertexDecls
, // IN
992 SVGA3dPrimitiveRange
**ranges
, // OUT
993 uint32 numRanges
) // IN
995 SVGA3dCmdDrawPrimitives
*cmd
;
996 SVGA3dVertexDecl
*declArray
;
997 SVGA3dPrimitiveRange
*rangeArray
;
998 uint32 declSize
= sizeof **decls
* numVertexDecls
;
999 uint32 rangeSize
= sizeof **ranges
* numRanges
;
1001 cmd
= SVGA3D_FIFOReserve(swc
,
1002 SVGA_3D_CMD_DRAW_PRIMITIVES
,
1003 sizeof *cmd
+ declSize
+ rangeSize
,
1004 numVertexDecls
+ numRanges
);
1006 return PIPE_ERROR_OUT_OF_MEMORY
;
1008 cmd
->cid
= swc
->cid
;
1009 cmd
->numVertexDecls
= numVertexDecls
;
1010 cmd
->numRanges
= numRanges
;
1012 declArray
= (SVGA3dVertexDecl
*) &cmd
[1];
1013 rangeArray
= (SVGA3dPrimitiveRange
*) &declArray
[numVertexDecls
];
1015 memset(declArray
, 0, declSize
);
1016 memset(rangeArray
, 0, rangeSize
);
1019 *ranges
= rangeArray
;
1021 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
1028 *----------------------------------------------------------------------
1030 * SVGA3D_BeginSurfaceCopy --
1032 * Begin a SURFACE_COPY command. This reserves space for it in
1033 * the FIFO, and returns a pointer to the command's arrays. This
1034 * function must be paired with SVGA_FIFOCommitAll().
1036 * The box array is initialized with zeroes.
1042 * Asynchronously copies a list of boxes from surface to surface.
1044 *----------------------------------------------------------------------
1048 SVGA3D_BeginSurfaceCopy(struct svga_winsys_context
*swc
,
1049 struct pipe_surface
*src
, // IN
1050 struct pipe_surface
*dest
, // IN
1051 SVGA3dCopyBox
**boxes
, // OUT
1052 uint32 numBoxes
) // IN
1054 SVGA3dCmdSurfaceCopy
*cmd
;
1055 uint32 boxesSize
= sizeof **boxes
* numBoxes
;
1057 cmd
= SVGA3D_FIFOReserve(swc
,
1058 SVGA_3D_CMD_SURFACE_COPY
, sizeof *cmd
+ boxesSize
,
1061 return PIPE_ERROR_OUT_OF_MEMORY
;
1063 surface_to_surfaceid(swc
, src
, &cmd
->src
, SVGA_RELOC_READ
);
1064 surface_to_surfaceid(swc
, dest
, &cmd
->dest
, SVGA_RELOC_WRITE
);
1065 *boxes
= (SVGA3dCopyBox
*) &cmd
[1];
1067 memset(*boxes
, 0, boxesSize
);
1074 *----------------------------------------------------------------------
1076 * SVGA3D_SurfaceStretchBlt --
1078 * Issue a SURFACE_STRETCHBLT command: an asynchronous
1079 * surface-to-surface blit, with scaling.
1085 * Asynchronously copies one box from surface to surface.
1087 *----------------------------------------------------------------------
1091 SVGA3D_SurfaceStretchBlt(struct svga_winsys_context
*swc
,
1092 struct pipe_surface
*src
, // IN
1093 struct pipe_surface
*dest
, // IN
1094 SVGA3dBox
*boxSrc
, // IN
1095 SVGA3dBox
*boxDest
, // IN
1096 SVGA3dStretchBltMode mode
) // IN
1098 SVGA3dCmdSurfaceStretchBlt
*cmd
;
1100 cmd
= SVGA3D_FIFOReserve(swc
,
1101 SVGA_3D_CMD_SURFACE_STRETCHBLT
, sizeof *cmd
,
1104 return PIPE_ERROR_OUT_OF_MEMORY
;
1106 surface_to_surfaceid(swc
, src
, &cmd
->src
, SVGA_RELOC_READ
);
1107 surface_to_surfaceid(swc
, dest
, &cmd
->dest
, SVGA_RELOC_WRITE
);
1108 cmd
->boxSrc
= *boxSrc
;
1109 cmd
->boxDest
= *boxDest
;
1118 *----------------------------------------------------------------------
1120 * SVGA3D_SetViewport --
1122 * Set the current context's viewport rectangle. The viewport
1123 * is clipped to the dimensions of the current render target,
1124 * then all rendering is clipped to the viewport.
1132 *----------------------------------------------------------------------
1136 SVGA3D_SetViewport(struct svga_winsys_context
*swc
,
1137 SVGA3dRect
*rect
) // IN
1139 SVGA3dCmdSetViewport
*cmd
;
1141 cmd
= SVGA3D_FIFOReserve(swc
,
1142 SVGA_3D_CMD_SETVIEWPORT
, sizeof *cmd
,
1145 return PIPE_ERROR_OUT_OF_MEMORY
;
1147 cmd
->cid
= swc
->cid
;
1158 *----------------------------------------------------------------------
1160 * SVGA3D_SetScissorRect --
1162 * Set the current context's scissor rectangle. If scissoring
1163 * is enabled then all rendering is clipped to the scissor bounds.
1171 *----------------------------------------------------------------------
1175 SVGA3D_SetScissorRect(struct svga_winsys_context
*swc
,
1176 SVGA3dRect
*rect
) // IN
1178 SVGA3dCmdSetScissorRect
*cmd
;
1180 cmd
= SVGA3D_FIFOReserve(swc
,
1181 SVGA_3D_CMD_SETSCISSORRECT
, sizeof *cmd
,
1184 return PIPE_ERROR_OUT_OF_MEMORY
;
1186 cmd
->cid
= swc
->cid
;
1194 *----------------------------------------------------------------------
1196 * SVGA3D_SetClipPlane --
1198 * Set one of the current context's clip planes. If the clip
1199 * plane is enabled then all 3d rendering is clipped against
1208 *----------------------------------------------------------------------
1212 SVGA3D_SetClipPlane(struct svga_winsys_context
*swc
,
1213 uint32 index
, const float *plane
)
1215 SVGA3dCmdSetClipPlane
*cmd
;
1217 cmd
= SVGA3D_FIFOReserve(swc
,
1218 SVGA_3D_CMD_SETCLIPPLANE
, sizeof *cmd
,
1221 return PIPE_ERROR_OUT_OF_MEMORY
;
1223 cmd
->cid
= swc
->cid
;
1225 cmd
->plane
[0] = plane
[0];
1226 cmd
->plane
[1] = plane
[1];
1227 cmd
->plane
[2] = plane
[2];
1228 cmd
->plane
[3] = plane
[3];
1235 *----------------------------------------------------------------------
1237 * SVGA3D_SetZRange --
1239 * Set the range of the depth buffer to use. 'min' and 'max'
1240 * are values between 0.0 and 1.0.
1248 *----------------------------------------------------------------------
1252 SVGA3D_SetZRange(struct svga_winsys_context
*swc
,
1256 SVGA3dCmdSetZRange
*cmd
;
1258 cmd
= SVGA3D_FIFOReserve(swc
,
1259 SVGA_3D_CMD_SETZRANGE
, sizeof *cmd
,
1262 return PIPE_ERROR_OUT_OF_MEMORY
;
1264 cmd
->cid
= swc
->cid
;
1265 cmd
->zRange
.min
= zMin
;
1266 cmd
->zRange
.max
= zMax
;
1274 *----------------------------------------------------------------------
1276 * SVGA3D_BeginSetTextureState --
1278 * Begin a SETTEXTURESTATE command. This reserves space for it in
1279 * the FIFO, and returns a pointer to the command's texture state
1280 * array. This function must be paired with SVGA_FIFOCommitAll().
1282 * This command sets rendering state which is per-texture-unit.
1284 * XXX: Individual texture states need documentation. However,
1285 * they are very similar to the texture states defined by
1286 * Direct3D. The D3D documentation is a good starting point
1287 * for understanding SVGA3D texture states.
1295 *----------------------------------------------------------------------
1299 SVGA3D_BeginSetTextureState(struct svga_winsys_context
*swc
,
1300 SVGA3dTextureState
**states
, // OUT
1301 uint32 numStates
) // IN
1303 SVGA3dCmdSetTextureState
*cmd
;
1305 cmd
= SVGA3D_FIFOReserve(swc
,
1306 SVGA_3D_CMD_SETTEXTURESTATE
,
1307 sizeof *cmd
+ sizeof **states
* numStates
,
1310 return PIPE_ERROR_OUT_OF_MEMORY
;
1312 cmd
->cid
= swc
->cid
;
1313 *states
= (SVGA3dTextureState
*) &cmd
[1];
1320 *----------------------------------------------------------------------
1322 * SVGA3D_BeginSetRenderState --
1324 * Begin a SETRENDERSTATE command. This reserves space for it in
1325 * the FIFO, and returns a pointer to the command's texture state
1326 * array. This function must be paired with SVGA_FIFOCommitAll().
1328 * This command sets rendering state which is global to the context.
1330 * XXX: Individual render states need documentation. However,
1331 * they are very similar to the render states defined by
1332 * Direct3D. The D3D documentation is a good starting point
1333 * for understanding SVGA3D render states.
1341 *----------------------------------------------------------------------
1345 SVGA3D_BeginSetRenderState(struct svga_winsys_context
*swc
,
1346 SVGA3dRenderState
**states
, // OUT
1347 uint32 numStates
) // IN
1349 SVGA3dCmdSetRenderState
*cmd
;
1351 cmd
= SVGA3D_FIFOReserve(swc
,
1352 SVGA_3D_CMD_SETRENDERSTATE
,
1353 sizeof *cmd
+ sizeof **states
* numStates
,
1356 return PIPE_ERROR_OUT_OF_MEMORY
;
1358 cmd
->cid
= swc
->cid
;
1359 *states
= (SVGA3dRenderState
*) &cmd
[1];
1366 *----------------------------------------------------------------------
1368 * SVGA3D_BeginGBQuery--
1370 * GB resource version of SVGA3D_BeginQuery.
1376 * Commits space in the FIFO memory.
1378 *----------------------------------------------------------------------
1381 static enum pipe_error
1382 SVGA3D_BeginGBQuery(struct svga_winsys_context
*swc
,
1383 SVGA3dQueryType type
) // IN
1385 SVGA3dCmdBeginGBQuery
*cmd
;
1387 cmd
= SVGA3D_FIFOReserve(swc
,
1388 SVGA_3D_CMD_BEGIN_GB_QUERY
,
1392 return PIPE_ERROR_OUT_OF_MEMORY
;
1394 cmd
->cid
= swc
->cid
;
1404 *----------------------------------------------------------------------
1406 * SVGA3D_BeginQuery--
1408 * Issues a SVGA_3D_CMD_BEGIN_QUERY command.
1414 * Commits space in the FIFO memory.
1416 *----------------------------------------------------------------------
1420 SVGA3D_BeginQuery(struct svga_winsys_context
*swc
,
1421 SVGA3dQueryType type
) // IN
1423 SVGA3dCmdBeginQuery
*cmd
;
1425 if (swc
->have_gb_objects
)
1426 return SVGA3D_BeginGBQuery(swc
, type
);
1428 cmd
= SVGA3D_FIFOReserve(swc
,
1429 SVGA_3D_CMD_BEGIN_QUERY
,
1433 return PIPE_ERROR_OUT_OF_MEMORY
;
1435 cmd
->cid
= swc
->cid
;
1445 *----------------------------------------------------------------------
1447 * SVGA3D_EndGBQuery--
1449 * GB resource version of SVGA3D_EndQuery.
1455 * Commits space in the FIFO memory.
1457 *----------------------------------------------------------------------
1460 static enum pipe_error
1461 SVGA3D_EndGBQuery(struct svga_winsys_context
*swc
,
1462 SVGA3dQueryType type
, // IN
1463 struct svga_winsys_buffer
*buffer
) // IN/OUT
1465 SVGA3dCmdEndGBQuery
*cmd
;
1467 cmd
= SVGA3D_FIFOReserve(swc
,
1468 SVGA_3D_CMD_END_GB_QUERY
,
1472 return PIPE_ERROR_OUT_OF_MEMORY
;
1474 cmd
->cid
= swc
->cid
;
1477 swc
->mob_relocation(swc
, &cmd
->mobid
, &cmd
->offset
, buffer
,
1478 0, SVGA_RELOC_READ
| SVGA_RELOC_WRITE
);
1487 *----------------------------------------------------------------------
1491 * Issues a SVGA_3D_CMD_END_QUERY command.
1497 * Commits space in the FIFO memory.
1499 *----------------------------------------------------------------------
1503 SVGA3D_EndQuery(struct svga_winsys_context
*swc
,
1504 SVGA3dQueryType type
, // IN
1505 struct svga_winsys_buffer
*buffer
) // IN/OUT
1507 SVGA3dCmdEndQuery
*cmd
;
1509 if (swc
->have_gb_objects
)
1510 return SVGA3D_EndGBQuery(swc
, type
, buffer
);
1512 cmd
= SVGA3D_FIFOReserve(swc
,
1513 SVGA_3D_CMD_END_QUERY
,
1517 return PIPE_ERROR_OUT_OF_MEMORY
;
1519 cmd
->cid
= swc
->cid
;
1522 swc
->region_relocation(swc
, &cmd
->guestResult
, buffer
, 0,
1523 SVGA_RELOC_READ
| SVGA_RELOC_WRITE
);
1532 *----------------------------------------------------------------------
1534 * SVGA3D_WaitForGBQuery--
1536 * GB resource version of SVGA3D_WaitForQuery.
1542 * Commits space in the FIFO memory.
1544 *----------------------------------------------------------------------
1547 static enum pipe_error
1548 SVGA3D_WaitForGBQuery(struct svga_winsys_context
*swc
,
1549 SVGA3dQueryType type
, // IN
1550 struct svga_winsys_buffer
*buffer
) // IN/OUT
1552 SVGA3dCmdWaitForGBQuery
*cmd
;
1554 cmd
= SVGA3D_FIFOReserve(swc
,
1555 SVGA_3D_CMD_WAIT_FOR_GB_QUERY
,
1559 return PIPE_ERROR_OUT_OF_MEMORY
;
1561 cmd
->cid
= swc
->cid
;
1564 swc
->mob_relocation(swc
, &cmd
->mobid
, &cmd
->offset
, buffer
,
1565 0, SVGA_RELOC_READ
| SVGA_RELOC_WRITE
);
1574 *----------------------------------------------------------------------
1576 * SVGA3D_WaitForQuery--
1578 * Issues a SVGA_3D_CMD_WAIT_FOR_QUERY command. This reserves space
1579 * for it in the FIFO. This doesn't actually wait for the query to
1580 * finish but instead tells the host to start a wait at the driver
1581 * level. The caller can wait on the status variable in the
1582 * guestPtr memory or send an insert fence instruction after this
1583 * command and wait on the fence.
1589 * Commits space in the FIFO memory.
1591 *----------------------------------------------------------------------
1595 SVGA3D_WaitForQuery(struct svga_winsys_context
*swc
,
1596 SVGA3dQueryType type
, // IN
1597 struct svga_winsys_buffer
*buffer
) // IN/OUT
1599 SVGA3dCmdWaitForQuery
*cmd
;
1601 if (swc
->have_gb_objects
)
1602 return SVGA3D_WaitForGBQuery(swc
, type
, buffer
);
1604 cmd
= SVGA3D_FIFOReserve(swc
,
1605 SVGA_3D_CMD_WAIT_FOR_QUERY
,
1609 return PIPE_ERROR_OUT_OF_MEMORY
;
1611 cmd
->cid
= swc
->cid
;
1614 swc
->region_relocation(swc
, &cmd
->guestResult
, buffer
, 0,
1615 SVGA_RELOC_READ
| SVGA_RELOC_WRITE
);
1624 SVGA3D_BindGBShader(struct svga_winsys_context
*swc
,
1625 struct svga_winsys_gb_shader
*gbshader
)
1627 SVGA3dCmdBindGBShader
*cmd
=
1628 SVGA3D_FIFOReserve(swc
,
1629 SVGA_3D_CMD_BIND_GB_SHADER
,
1631 2); /* two relocations */
1634 return PIPE_ERROR_OUT_OF_MEMORY
;
1636 swc
->shader_relocation(swc
, &cmd
->shid
, &cmd
->mobid
,
1637 &cmd
->offsetInBytes
, gbshader
, 0);
1646 SVGA3D_SetGBShader(struct svga_winsys_context
*swc
,
1647 SVGA3dShaderType type
, // IN
1648 struct svga_winsys_gb_shader
*gbshader
)
1650 SVGA3dCmdSetShader
*cmd
;
1652 assert(type
== SVGA3D_SHADERTYPE_VS
|| type
== SVGA3D_SHADERTYPE_PS
);
1654 cmd
= SVGA3D_FIFOReserve(swc
,
1655 SVGA_3D_CMD_SET_SHADER
,
1657 2); /* two relocations */
1659 return PIPE_ERROR_OUT_OF_MEMORY
;
1661 cmd
->cid
= swc
->cid
;
1664 swc
->shader_relocation(swc
, &cmd
->shid
, NULL
, NULL
, gbshader
, 0);
1666 cmd
->shid
= SVGA_ID_INVALID
;
1674 * \param flags mask of SVGA_RELOC_READ / _WRITE
1677 SVGA3D_BindGBSurface(struct svga_winsys_context
*swc
,
1678 struct svga_winsys_surface
*surface
)
1680 SVGA3dCmdBindGBSurface
*cmd
=
1681 SVGA3D_FIFOReserve(swc
,
1682 SVGA_3D_CMD_BIND_GB_SURFACE
,
1684 2); /* two relocations */
1687 return PIPE_ERROR_OUT_OF_MEMORY
;
1689 swc
->surface_relocation(swc
, &cmd
->sid
, &cmd
->mobid
, surface
,
1690 SVGA_RELOC_READ
| SVGA_RELOC_INTERNAL
);
1699 * Update an image in a guest-backed surface.
1700 * (Inform the device that the guest-contents have been updated.)
1703 SVGA3D_UpdateGBImage(struct svga_winsys_context
*swc
,
1704 struct svga_winsys_surface
*surface
,
1705 const SVGA3dBox
*box
,
1706 unsigned face
, unsigned mipLevel
)
1709 SVGA3dCmdUpdateGBImage
*cmd
=
1710 SVGA3D_FIFOReserve(swc
,
1711 SVGA_3D_CMD_UPDATE_GB_IMAGE
,
1713 1); /* one relocation */
1716 return PIPE_ERROR_OUT_OF_MEMORY
;
1718 swc
->surface_relocation(swc
, &cmd
->image
.sid
, NULL
, surface
,
1719 SVGA_RELOC_WRITE
| SVGA_RELOC_INTERNAL
);
1720 cmd
->image
.face
= face
;
1721 cmd
->image
.mipmap
= mipLevel
;
1725 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
1732 * Update an entire guest-backed surface.
1733 * (Inform the device that the guest-contents have been updated.)
1736 SVGA3D_UpdateGBSurface(struct svga_winsys_context
*swc
,
1737 struct svga_winsys_surface
*surface
)
1739 SVGA3dCmdUpdateGBSurface
*cmd
=
1740 SVGA3D_FIFOReserve(swc
,
1741 SVGA_3D_CMD_UPDATE_GB_SURFACE
,
1743 1); /* one relocation */
1746 return PIPE_ERROR_OUT_OF_MEMORY
;
1748 swc
->surface_relocation(swc
, &cmd
->sid
, NULL
, surface
,
1749 SVGA_RELOC_WRITE
| SVGA_RELOC_INTERNAL
);
1752 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
1759 * Readback an image in a guest-backed surface.
1760 * (Request the device to flush the dirty contents into the guest.)
1763 SVGA3D_ReadbackGBImage(struct svga_winsys_context
*swc
,
1764 struct svga_winsys_surface
*surface
,
1765 unsigned face
, unsigned mipLevel
)
1767 SVGA3dCmdReadbackGBImage
*cmd
=
1768 SVGA3D_FIFOReserve(swc
,
1769 SVGA_3D_CMD_READBACK_GB_IMAGE
,
1771 1); /* one relocation */
1774 return PIPE_ERROR_OUT_OF_MEMORY
;
1776 swc
->surface_relocation(swc
, &cmd
->image
.sid
, NULL
, surface
,
1777 SVGA_RELOC_READ
| SVGA_RELOC_INTERNAL
);
1778 cmd
->image
.face
= face
;
1779 cmd
->image
.mipmap
= mipLevel
;
1782 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
1789 * Readback an entire guest-backed surface.
1790 * (Request the device to flush the dirty contents into the guest.)
1793 SVGA3D_ReadbackGBSurface(struct svga_winsys_context
*swc
,
1794 struct svga_winsys_surface
*surface
)
1796 SVGA3dCmdReadbackGBSurface
*cmd
=
1797 SVGA3D_FIFOReserve(swc
,
1798 SVGA_3D_CMD_READBACK_GB_SURFACE
,
1800 1); /* one relocation */
1803 return PIPE_ERROR_OUT_OF_MEMORY
;
1805 swc
->surface_relocation(swc
, &cmd
->sid
, NULL
, surface
,
1806 SVGA_RELOC_READ
| SVGA_RELOC_INTERNAL
);
1809 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
1816 SVGA3D_ReadbackGBImagePartial(struct svga_winsys_context
*swc
,
1817 struct svga_winsys_surface
*surface
,
1818 unsigned face
, unsigned mipLevel
,
1819 const SVGA3dBox
*box
,
1822 SVGA3dCmdReadbackGBImagePartial
*cmd
=
1823 SVGA3D_FIFOReserve(swc
,
1824 SVGA_3D_CMD_READBACK_GB_IMAGE_PARTIAL
,
1826 1); /* one relocation */
1828 return PIPE_ERROR_OUT_OF_MEMORY
;
1830 swc
->surface_relocation(swc
, &cmd
->image
.sid
, NULL
, surface
,
1831 SVGA_RELOC_READ
| SVGA_RELOC_INTERNAL
);
1832 cmd
->image
.face
= face
;
1833 cmd
->image
.mipmap
= mipLevel
;
1835 cmd
->invertBox
= invertBox
;
1838 swc
->hints
|= SVGA_HINT_FLAG_CAN_PRE_FLUSH
;
1845 SVGA3D_InvalidateGBImagePartial(struct svga_winsys_context
*swc
,
1846 struct svga_winsys_surface
*surface
,
1847 unsigned face
, unsigned mipLevel
,
1848 const SVGA3dBox
*box
,
1851 SVGA3dCmdInvalidateGBImagePartial
*cmd
=
1852 SVGA3D_FIFOReserve(swc
,
1853 SVGA_3D_CMD_INVALIDATE_GB_IMAGE_PARTIAL
,
1855 1); /* one relocation */
1857 return PIPE_ERROR_OUT_OF_MEMORY
;
1859 swc
->surface_relocation(swc
, &cmd
->image
.sid
, NULL
, surface
,
1860 SVGA_RELOC_READ
| SVGA_RELOC_INTERNAL
);
1861 cmd
->image
.face
= face
;
1862 cmd
->image
.mipmap
= mipLevel
;
1864 cmd
->invertBox
= invertBox
;
1873 SVGA3D_SetGBShaderConstsInline(struct svga_winsys_context
*swc
,
1876 SVGA3dShaderType shaderType
,
1877 SVGA3dShaderConstType constType
,
1880 SVGA3dCmdSetGBShaderConstInline
*cmd
;
1882 assert(numRegs
> 0);
1884 cmd
= SVGA3D_FIFOReserve(swc
,
1885 SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE
,
1886 sizeof *cmd
+ numRegs
* sizeof(float[4]),
1887 0); /* no relocations */
1889 return PIPE_ERROR_OUT_OF_MEMORY
;
1891 cmd
->cid
= swc
->cid
;
1892 cmd
->regStart
= regStart
;
1893 cmd
->shaderType
= shaderType
;
1894 cmd
->constType
= constType
;
1896 memcpy(&cmd
[1], values
, numRegs
* sizeof(float[4]));