src/mesa/drivers/dri/unichrome/via_ioctl.h

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #ifndef _VIAIOCTL_H
  26 #define _VIAIOCTL_H
  27
  28 #include "via_context.h"
  29
  30
  31 void viaEmitPrim(viaContextPtr vmesa);
  32 void viaFlushPrims(viaContextPtr vmesa);
  33 void viaFlushPrimsLocked(viaContextPtr vmesa);
  34
  35 void viaDmaFinish(viaContextPtr vmesa);
  36 void viaRegetLockQuiescent(viaContextPtr vmesa);
  37 void viaInitIoctlFuncs(GLcontext *ctx);
  38 void viaCopyBuffer(const __DRIdrawablePrivate *dpriv);
  39 void viaPageFlip(const __DRIdrawablePrivate *dpriv);
  40 int via_check_copy(int fd);
  41 void viaFillFrontBuffer(viaContextPtr vmesa);
  42 void viaFillFrontBufferSaam(viaContextPtr vmesa);
  43 void viaFillFrontPBuffer(viaContextPtr vmesa);
  44 void viaFillBackBuffer(viaContextPtr vmesa);
  45 void viaFillDepthBuffer(viaContextPtr vmesa, GLuint pixel);
  46 void viaFillStencilBuffer(viaContextPtr vmesa, GLuint pixel);
  47 void viaFillStencilDepthBuffer(viaContextPtr vmesa, GLuint pixel);
  48 void viaDoSwapBuffers(viaContextPtr vmesa);
  49 void viaDoSwapBuffersSaam(viaContextPtr vmesa);
  50 void viaDoSwapPBuffers(viaContextPtr vmesa);
  51
  52 int flush_agp(viaContextPtr vmesa, drm_via_flush_agp_t* agpCmd);
  53 int flush_agp_saam(viaContextPtr vmesa, drm_via_flush_agp_t* agpCmd);
  54 int flush_sys(viaContextPtr vmesa, drm_via_flush_sys_t* buf);
  55
  56 #define VIA_STATECHANGE(vmesa, flag)                            \
  57     do {                                                        \
  58         if (vmesa->dmaLow != vmesa->dmaLastPrim)                \
  59             viaFlushPrims(vmesa);                               \
  60         vmesa->dirty |= flag;                                   \
  61     } while (0)                                                 \
  62
  63
  64 #define VIA_FIREVERTICES(vmesa)                                 \
  65     do {                                                        \
  66         if (vmesa->dmaLow) {                                    \
  67             viaFlushPrims(vmesa);                               \
  68         }                                                       \
  69     } while (0)
  70
  71
  72 static __inline GLuint *viaCheckDma(viaContextPtr vmesa, int bytes)
  73 {
  74     if (vmesa->dmaLow + bytes > vmesa->dmaHigh) {
  75 #ifdef DEBUG
  76         if (VIA_DEBUG) fprintf(stderr, "buffer overflow in check dma = %d + %d = %d\n", vmesa->dmaLow, bytes, vmesa->dmaLow + bytes);
  77 #endif
  78         viaFlushPrims(vmesa);
  79     }
  80
  81     {
  82         GLuint *start = (GLuint *)(vmesa->dmaAddr + vmesa->dmaLow);
  83         return start;
  84     }
  85 }
  86 #endif