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      1 /*
      2 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
      3 
      4 The Weather Channel (TM) funded Tungsten Graphics to develop the
      5 initial release of the Radeon 8500 driver under the XFree86 license.
      6 This notice must be preserved.
      7 
      8 Permission is hereby granted, free of charge, to any person obtaining
      9 a copy of this software and associated documentation files (the
     10 "Software"), to deal in the Software without restriction, including
     11 without limitation the rights to use, copy, modify, merge, publish,
     12 distribute, sublicense, and/or sell copies of the Software, and to
     13 permit persons to whom the Software is furnished to do so, subject to
     14 the following conditions:
     15 
     16 The above copyright notice and this permission notice (including the
     17 next paragraph) shall be included in all copies or substantial
     18 portions of the Software.
     19 
     20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     27 
     28 **************************************************************************/
     29 
     30 /*
     31  * Authors:
     32  *   Keith Whitwell <keith (at) tungstengraphics.com>
     33  */
     34 
     35 #ifndef __R200_IOCTL_H__
     36 #define __R200_IOCTL_H__
     37 
     38 #include "main/simple_list.h"
     39 #include "radeon_dri.h"
     40 
     41 #include "radeon_bo_gem.h"
     42 #include "radeon_cs_gem.h"
     43 
     44 #include "xf86drm.h"
     45 #include "drm.h"
     46 #include "radeon_drm.h"
     47 
     48 extern void r200EmitMaxVtxIndex(r200ContextPtr rmesa, int count);
     49 extern void r200EmitVertexAOS( r200ContextPtr rmesa,
     50 			       GLuint vertex_size,
     51 			       struct radeon_bo *bo,
     52 			       GLuint offset );
     53 
     54 extern void r200EmitVbufPrim( r200ContextPtr rmesa,
     55 				GLuint primitive,
     56 				GLuint vertex_nr );
     57 
     58 extern void r200FlushElts(struct gl_context *ctx);
     59 
     60 extern GLushort *r200AllocEltsOpenEnded( r200ContextPtr rmesa,
     61 					   GLuint primitive,
     62 					   GLuint min_nr );
     63 
     64 extern void r200EmitAOS(r200ContextPtr rmesa, GLuint nr, GLuint offset);
     65 
     66 extern void r200InitIoctlFuncs( struct dd_function_table *functions );
     67 
     68 void r200SetUpAtomList( r200ContextPtr rmesa );
     69 
     70 /* ================================================================
     71  * Helper macros:
     72  */
     73 
     74 /* Close off the last primitive, if it exists.
     75  */
     76 #define R200_NEWPRIM( rmesa )			\
     77 do {						\
     78    if ( rmesa->radeon.dma.flush )			\
     79       rmesa->radeon.dma.flush( rmesa->radeon.glCtx );	\
     80 } while (0)
     81 
     82 /* Can accomodate several state changes and primitive changes without
     83  * actually firing the buffer.
     84  */
     85 #define R200_STATECHANGE( rmesa, ATOM )			\
     86 do {								\
     87    R200_NEWPRIM( rmesa );					\
     88    rmesa->hw.ATOM.dirty = GL_TRUE;				\
     89    rmesa->radeon.hw.is_dirty = GL_TRUE;				\
     90 } while (0)
     91 
     92 #define R200_SET_STATE( rmesa, ATOM, index, newvalue ) 	\
     93   do {	\
     94     uint32_t __index = (index); \
     95     uint32_t __dword = (newvalue); \
     96     if (__dword != (rmesa)->hw.ATOM.cmd[__index]) { \
     97       R200_STATECHANGE( (rmesa), ATOM ); \
     98       (rmesa)->hw.ATOM.cmd[__index] = __dword; \
     99     } \
    100   } while(0)
    101 
    102 #define R200_DB_STATE( ATOM )			        \
    103    memcpy( rmesa->hw.ATOM.lastcmd, rmesa->hw.ATOM.cmd,	\
    104 	   rmesa->hw.ATOM.cmd_size * 4)
    105 
    106 static INLINE int R200_DB_STATECHANGE(
    107    r200ContextPtr rmesa,
    108    struct radeon_state_atom *atom )
    109 {
    110    if (memcmp(atom->cmd, atom->lastcmd, atom->cmd_size*4)) {
    111       GLuint *tmp;
    112       R200_NEWPRIM( rmesa );
    113       atom->dirty = GL_TRUE;
    114       rmesa->radeon.hw.is_dirty = GL_TRUE;
    115       tmp = atom->cmd;
    116       atom->cmd = atom->lastcmd;
    117       atom->lastcmd = tmp;
    118       return 1;
    119    }
    120    else
    121       return 0;
    122 }
    123 
    124 
    125 /* Command lengths.  Note that any time you ensure ELTS_BUFSZ or VBUF_BUFSZ
    126  * are available, you will also be adding an rmesa->state.max_state_size because
    127  * r200EmitState is called from within r200EmitVbufPrim and r200FlushElts.
    128  */
    129 #define AOS_BUFSZ(nr)	((3 + ((nr / 2) * 3) + ((nr & 1) * 2) + nr*2))
    130 #define VERT_AOS_BUFSZ	(5)
    131 #define ELTS_BUFSZ(nr)	(12 + nr * 2)
    132 #define VBUF_BUFSZ	(3)
    133 #define SCISSOR_BUFSZ	(8)
    134 #define INDEX_BUFSZ	(8+2)
    135 
    136 static inline uint32_t cmdpacket3(int cmd_type)
    137 {
    138   drm_radeon_cmd_header_t cmd;
    139 
    140   cmd.i = 0;
    141   cmd.header.cmd_type = cmd_type;
    142 
    143   return (uint32_t)cmd.i;
    144 
    145 }
    146 
    147 #define OUT_BATCH_PACKET3(packet, num_extra) do {	      \
    148     OUT_BATCH(CP_PACKET2);				      \
    149     OUT_BATCH(CP_PACKET3((packet), (num_extra)));	      \
    150   } while(0)
    151 
    152 #define OUT_BATCH_PACKET3_CLIP(packet, num_extra) do {	      \
    153     OUT_BATCH(CP_PACKET2);				      \
    154     OUT_BATCH(CP_PACKET3((packet), (num_extra)));	      \
    155   } while(0)
    156 
    157 
    158 #endif /* __R200_IOCTL_H__ */
    159