src/mesa/drivers/dri/nouveau/nouveau_driver.c

   1 /**************************************************************************
   2
   3 Copyright 2006 Stephane Marchesin
   4 All Rights Reserved.
   5
   6 Permission is hereby granted, free of charge, to any person obtaining a
   7 copy of this software and associated documentation files (the "Software"),
   8 to deal in the Software without restriction, including without limitation
   9 on the rights to use, copy, modify, merge, publish, distribute, sub
  10 license, and/or sell copies of the Software, and to permit persons to whom
  11 the Software is furnished to do so, subject to the following conditions:
  12
  13 The above copyright notice and this permission notice (including the next
  14 paragraph) shall be included in all copies or substantial portions of the
  15 Software.
  16
  17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  20 ERIC ANHOLT OR SILICON INTEGRATED SYSTEMS CORP BE LIABLE FOR ANY CLAIM,
  21 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  22 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  23 USE OR OTHER DEALINGS IN THE SOFTWARE.
  24
  25 **************************************************************************/
  26
  27 #include "nouveau_context.h"
  28 //#include "nouveau_state.h"
  29 #include "nouveau_lock.h"
  30 #include "nouveau_fifo.h"
  31 #include "nouveau_driver.h"
  32 #include "swrast/swrast.h"
  33
  34 #include "context.h"
  35 #include "framebuffer.h"
  36
  37 #include "utils.h"
  38
  39 /* Wrapper for DRM_NOUVEAU_GETPARAM ioctl */
  40 GLboolean nouveauDRMGetParam(nouveauContextPtr nmesa,
  41                              unsigned int      param,
  42                              uint64_t*         value)
  43 {
  44         drm_nouveau_getparam_t getp;
  45
  46         getp.param = param;
  47         if (!value || drmCommandWriteRead(nmesa->driFd, DRM_NOUVEAU_GETPARAM,
  48                                           &getp, sizeof(getp)))
  49                 return GL_FALSE;
  50         *value = getp.value;
  51         return GL_TRUE;
  52 }
  53
  54 /* Wrapper for DRM_NOUVEAU_GETPARAM ioctl */
  55 GLboolean nouveauDRMSetParam(nouveauContextPtr nmesa,
  56                              unsigned int      param,
  57                              uint64_t          value)
  58 {
  59         drm_nouveau_setparam_t setp;
  60
  61         setp.param = param;
  62         setp.value = value;
  63         if (drmCommandWrite(nmesa->driFd, DRM_NOUVEAU_SETPARAM, &setp,
  64                                 sizeof(setp)))
  65                 return GL_FALSE;
  66         return GL_TRUE;
  67 }
  68
  69 /* Return the width and height of the current color buffer */
  70 static void nouveauGetBufferSize( GLframebuffer *buffer,
  71                 GLuint *width, GLuint *height )
  72 {
  73         GET_CURRENT_CONTEXT(ctx);
  74         nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
  75
  76         LOCK_HARDWARE( nmesa );
  77         *width  = nmesa->driDrawable->w;
  78         *height = nmesa->driDrawable->h;
  79         UNLOCK_HARDWARE( nmesa );
  80 }
  81
  82 /* glGetString */
  83 static const GLubyte *nouveauGetString( GLcontext *ctx, GLenum name )
  84 {
  85         nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
  86         static char buffer[128];
  87         const char * card_name = "Unknown";
  88         GLuint agp_mode = 0;
  89
  90         switch ( name ) {
  91                 case GL_VENDOR:
  92                         return (GLubyte *)DRIVER_AUTHOR;
  93
  94                 case GL_RENDERER:
  95                         card_name=nmesa->screen->card->name;
  96
  97                         switch(nmesa->screen->bus_type)
  98                         {
  99                                 case NV_PCI:
 100                                 case NV_PCIE:
 101                                 default:
 102                                         agp_mode=0;
 103                                         break;
 104                                 case NV_AGP:
 105                                         agp_mode=nmesa->screen->agp_mode;
 106                                         break;
 107                         }
 108                         driGetRendererString( buffer, card_name, DRIVER_DATE,
 109                                         agp_mode );
 110                         return (GLubyte *)buffer;
 111                 default:
 112                         return NULL;
 113         }
 114 }
 115
 116 /* glFlush */
 117 static void nouveauFlush( GLcontext *ctx )
 118 {
 119         nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
 120         FIRE_RING();
 121 }
 122
 123 /* glFinish */
 124 static void nouveauFinish( GLcontext *ctx )
 125 {
 126         nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
 127         nouveauFlush( ctx );
 128         nouveauWaitForIdle( nmesa );
 129 }
 130
 131 /* glClear */
 132 static void nouveauClear( GLcontext *ctx, GLbitfield mask )
 133 {
 134         // XXX we really should do something here...
 135 }
 136
 137 void nouveauDriverInitFunctions( struct dd_function_table *functions )
 138 {
 139         functions->GetBufferSize        = nouveauGetBufferSize;
 140         functions->ResizeBuffers        = _mesa_resize_framebuffer;
 141         functions->GetString            = nouveauGetString;
 142         functions->Flush                = nouveauFlush;
 143         functions->Finish               = nouveauFinish;
 144         functions->Clear                = nouveauClear;
 145 }
 146