r128_dd.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_dd.c,v 1.15 2002/10/30 12:51:38 alanh Exp $ */
/**************************************************************************

Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, Inc.,
                                               Cedar Park, Texas.
All Rights Reserved.

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/*
 * Authors:
 *   Gareth Hughes <[e-mail]>
 *   Kevin E. Martin <[e-mail]>
 *
 */

#include "r128_context.h"
#include "r128_ioctl.h"
#include "r128_state.h"
#include "r128_dd.h"
#include "swrast/swrast.h"

#include "context.h"
#include "framebuffer.h"

#include "utils.h"

#define DRIVER_DATE	"20051027"


/* Return the width and height of the current color buffer.
 */
static void r128GetBufferSize( GLframebuffer *buffer,
				 GLuint *width, GLuint *height )
{
   GET_CURRENT_CONTEXT(ctx);
   r128ContextPtr rmesa = R128_CONTEXT(ctx);

   LOCK_HARDWARE( rmesa );
   *width  = rmesa->driDrawable->w;
   *height = rmesa->driDrawable->h;
   UNLOCK_HARDWARE( rmesa );
}

/* Return various strings for glGetString().
 */
static const GLubyte *r128GetString( GLcontext *ctx, GLenum name )
{
   r128ContextPtr rmesa = R128_CONTEXT(ctx);
   static char buffer[128];
   unsigned   offset;
   const char * card_name = "Rage 128";
   GLuint agp_mode = rmesa->r128Screen->IsPCI ? 0 :
      rmesa->r128Screen->AGPMode;

   switch ( name ) {
   case GL_VENDOR:
      return (GLubyte *)"VA Linux Systems, Inc.";

   case GL_RENDERER:
      /* Select the spefic chipset.
       */
      if ( R128_IS_PRO( rmesa ) ) {
	 card_name = "Rage 128 Pro";
      }
      else if ( R128_IS_MOBILITY( rmesa ) ) {
	 card_name = "Rage 128 Mobility";
      }

      offset = driGetRendererString( buffer, card_name, DRIVER_DATE,
				     agp_mode );

      return (GLubyte *)buffer;

   default:
      return NULL;
   }
}

/* Send all commands to the hardware.  If vertex buffers or indirect
 * buffers are in use, then we need to make sure they are sent to the
 * hardware.  All commands that are normally sent to the ring are
 * already considered `flushed'.
 */
static void r128Flush( GLcontext *ctx )
{
   r128ContextPtr rmesa = R128_CONTEXT(ctx);

   FLUSH_BATCH( rmesa );

#if ENABLE_PERF_BOXES
   if ( rmesa->boxes ) {
      LOCK_HARDWARE( rmesa );
      r128PerformanceBoxesLocked( rmesa );
      UNLOCK_HARDWARE( rmesa );
   }

   /* Log the performance counters if necessary */
   r128PerformanceCounters( rmesa );
#endif
}

/* Make sure all commands have been sent to the hardware and have
 * completed processing.
 */
static void r128Finish( GLcontext *ctx )
{
   r128ContextPtr rmesa = R128_CONTEXT(ctx);

#if ENABLE_PERF_BOXES
   /* Bump the performance counter */
   rmesa->c_drawWaits++;
#endif

   r128Flush( ctx );
   r128WaitForIdle( rmesa );
}


/* Initialize the driver's misc functions.
 */
void r128InitDriverFuncs( struct dd_function_table *functions )
{
   functions->GetBufferSize	= r128GetBufferSize;
   functions->GetString		= r128GetString;
   functions->Finish		= r128Finish;
   functions->Flush		= r128Flush;
}