sis_context.c

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

       * needed for sisDDDeleteTexture, since it needs to call the FB/AGP free
       * function.
       */
      /* smesa->glCtx->DriverCtx = NULL; */
      _mesa_destroy_context(smesa->glCtx);
   }

   FREE( smesa );
}

GLboolean
sisMakeCurrent( __DRIcontextPrivate *driContextPriv,
                __DRIdrawablePrivate *driDrawPriv,
                __DRIdrawablePrivate *driReadPriv )
{
   if ( driContextPriv ) {
      GET_CURRENT_CONTEXT(ctx);
      sisContextPtr oldSisCtx = ctx ? SIS_CONTEXT(ctx) : NULL;
      sisContextPtr newSisCtx = (sisContextPtr) driContextPriv->driverPrivate;
      struct gl_framebuffer *drawBuffer, *readBuffer;

      if ( newSisCtx != oldSisCtx) {
         newSisCtx->GlobalFlag = GFLAG_ALL;
      }

      newSisCtx->driDrawable = driDrawPriv;

      drawBuffer = (GLframebuffer *)driDrawPriv->driverPrivate;
      readBuffer = (GLframebuffer *)driReadPriv->driverPrivate;

      _mesa_make_current( newSisCtx->glCtx, drawBuffer, readBuffer );

      sisUpdateBufferSize( newSisCtx );
      sisUpdateClipping( newSisCtx->glCtx );
   } else {
      _mesa_make_current( NULL, NULL, NULL );
   }

   return GL_TRUE;
}

GLboolean
sisUnbindContext( __DRIcontextPrivate *driContextPriv )
{
   return GL_TRUE;
}

void
sis_update_render_state( sisContextPtr smesa )
{
   __GLSiSHardware *prev = &smesa->prev;

   mWait3DCmdQueue (45);

   if (smesa->GlobalFlag & GFLAG_ENABLESETTING) {
      if (!smesa->clearTexCache) {
	 MMIO(REG_3D_TEnable, prev->hwCapEnable);
      } else {
	 MMIO(REG_3D_TEnable, prev->hwCapEnable | MASK_TextureCacheClear);
	 MMIO(REG_3D_TEnable, prev->hwCapEnable);
	 smesa->clearTexCache = GL_FALSE;
      }
   }

   if (smesa->GlobalFlag & GFLAG_ENABLESETTING2)
      MMIO(REG_3D_TEnable2, prev->hwCapEnable2);

   /* Z Setting */
   if (smesa->GlobalFlag & GFLAG_ZSETTING)
   {
      MMIO(REG_3D_ZSet, prev->hwZ);
      MMIO(REG_3D_ZStWriteMask, prev->hwZMask);
      MMIO(REG_3D_ZAddress, prev->hwOffsetZ);
   }

   /* Alpha Setting */
   if (smesa->GlobalFlag & GFLAG_ALPHASETTING)
      MMIO(REG_3D_AlphaSet, prev->hwAlpha);

   if (smesa->GlobalFlag & GFLAG_DESTSETTING) {
      MMIO(REG_3D_DstSet, prev->hwDstSet);
      MMIO(REG_3D_DstAlphaWriteMask, prev->hwDstMask);
      MMIO(REG_3D_DstAddress, prev->hwOffsetDest);
   }

   /* Line Setting */
#if 0
   if (smesa->GlobalFlag & GFLAG_LINESETTING) 
      MMIO(REG_3D_LinePattern, prev->hwLinePattern);
#endif

   /* Fog Setting */
   if (smesa->GlobalFlag & GFLAG_FOGSETTING)
   {
      MMIO(REG_3D_FogSet, prev->hwFog);
      MMIO(REG_3D_FogInverseDistance, prev->hwFogInverse);
      MMIO(REG_3D_FogFarDistance, prev->hwFogFar);
      MMIO(REG_3D_FogFactorDensity, prev->hwFogDensity);
   }

   /* Stencil Setting */
   if (smesa->GlobalFlag & GFLAG_STENCILSETTING) {
      MMIO(REG_3D_StencilSet, prev->hwStSetting);
      MMIO(REG_3D_StencilSet2, prev->hwStSetting2);
   }

   /* Miscellaneous Setting */
   if (smesa->GlobalFlag & GFLAG_DSTBLEND)
      MMIO(REG_3D_DstBlendMode, prev->hwDstSrcBlend);
   if (smesa->GlobalFlag & GFLAG_CLIPPING) {
      MMIO(REG_3D_ClipTopBottom, prev->clipTopBottom);
      MMIO(REG_3D_ClipLeftRight, prev->clipLeftRight);
   }

  smesa->GlobalFlag &= ~GFLAG_RENDER_STATES;
}

void
sis_update_texture_state (sisContextPtr smesa)
{
   __GLSiSHardware *prev = &smesa->prev;

   mWait3DCmdQueue (55);
   if (smesa->clearTexCache || (smesa->GlobalFlag & GFLAG_TEXTUREADDRESS)) {
      MMIO(REG_3D_TEnable, prev->hwCapEnable | MASK_TextureCacheClear);
      MMIO(REG_3D_TEnable, prev->hwCapEnable);
      smesa->clearTexCache = GL_FALSE;
   }

   /* Texture Setting */
   if (smesa->GlobalFlag & CFLAG_TEXTURERESET)
      MMIO(REG_3D_TextureSet, prev->texture[0].hwTextureSet);

   if (smesa->GlobalFlag & GFLAG_TEXTUREMIPMAP)
      MMIO(REG_3D_TextureMip, prev->texture[0].hwTextureMip);

  /*
  MMIO(REG_3D_TextureTransparencyColorHigh, prev->texture[0].hwTextureClrHigh);
  MMIO(REG_3D_TextureTransparencyColorLow, prev->texture[0].hwTextureClrLow);
  */

   if (smesa->GlobalFlag & GFLAG_TEXBORDERCOLOR)
      MMIO(REG_3D_TextureBorderColor, prev->texture[0].hwTextureBorderColor);

   if (smesa->GlobalFlag & GFLAG_TEXTUREADDRESS) {
      switch ((prev->texture[0].hwTextureSet & MASK_TextureLevel) >> 8)
      {
      case 11:
         MMIO(REG_3D_TextureAddress11, prev->texture[0].texOffset11);
      case 10:
         MMIO(REG_3D_TextureAddress10, prev->texture[0].texOffset10);
         MMIO(REG_3D_TexturePitch10, prev->texture[0].texPitch10);
      case 9:
         MMIO(REG_3D_TextureAddress9, prev->texture[0].texOffset9);
      case 8:
         MMIO(REG_3D_TextureAddress8, prev->texture[0].texOffset8);
         MMIO(REG_3D_TexturePitch8, prev->texture[0].texPitch89);
      case 7:
         MMIO(REG_3D_TextureAddress7, prev->texture[0].texOffset7);
      case 6:
         MMIO(REG_3D_TextureAddress6, prev->texture[0].texOffset6);
         MMIO(REG_3D_TexturePitch6, prev->texture[0].texPitch67);
      case 5:
         MMIO(REG_3D_TextureAddress5, prev->texture[0].texOffset5);
      case 4:
         MMIO(REG_3D_TextureAddress4, prev->texture[0].texOffset4);
         MMIO(REG_3D_TexturePitch4, prev->texture[0].texPitch45);
      case 3:
         MMIO(REG_3D_TextureAddress3, prev->texture[0].texOffset3);
      case 2:
         MMIO(REG_3D_TextureAddress2, prev->texture[0].texOffset2);
         MMIO(REG_3D_TexturePitch2, prev->texture[0].texPitch23);
      case 1:
         MMIO(REG_3D_TextureAddress1, prev->texture[0].texOffset1);
      case 0:
	  MMIO(REG_3D_TextureAddress0, prev->texture[0].texOffset0);
	  MMIO(REG_3D_TexturePitch0, prev->texture[0].texPitch01);
      }
   }
   if (smesa->GlobalFlag & CFLAG_TEXTURERESET_1)
      MMIO(REG_3D_Texture1Set, prev->texture[1].hwTextureSet);
   if (smesa->GlobalFlag & GFLAG_TEXTUREMIPMAP_1)
      MMIO(REG_3D_Texture1Mip, prev->texture[1].hwTextureMip);

   if (smesa->GlobalFlag & GFLAG_TEXBORDERCOLOR_1) {
      MMIO(REG_3D_Texture1BorderColor,
	    prev->texture[1].hwTextureBorderColor);
   }
   if (smesa->GlobalFlag & GFLAG_TEXTUREADDRESS_1) {
      switch ((prev->texture[1].hwTextureSet & MASK_TextureLevel) >> 8)
      {
      case 11:
         MMIO(REG_3D_Texture1Address11, prev->texture[1].texOffset11);
      case 10:
         MMIO(REG_3D_Texture1Address10, prev->texture[1].texOffset10);
         MMIO(REG_3D_Texture1Pitch10, prev->texture[1].texPitch10);
      case 9:
         MMIO(REG_3D_Texture1Address9, prev->texture[1].texOffset9);
      case 8:
         MMIO(REG_3D_Texture1Address8, prev->texture[1].texOffset8);
         MMIO(REG_3D_Texture1Pitch8, prev->texture[1].texPitch89);
      case 7:
         MMIO(REG_3D_Texture1Address7, prev->texture[1].texOffset7);
      case 6:
         MMIO(REG_3D_Texture1Address6, prev->texture[1].texOffset6);
         MMIO(REG_3D_Texture1Pitch6, prev->texture[1].texPitch67);
      case 5:
         MMIO(REG_3D_Texture1Address5, prev->texture[1].texOffset5);
      case 4:
         MMIO(REG_3D_Texture1Address4, prev->texture[1].texOffset4);
         MMIO(REG_3D_Texture1Pitch4, prev->texture[1].texPitch45);
      case 3:
         MMIO(REG_3D_Texture1Address3, prev->texture[1].texOffset3);
      case 2:
         MMIO(REG_3D_Texture1Address2, prev->texture[1].texOffset2);
         MMIO(REG_3D_Texture1Pitch2, prev->texture[1].texPitch23);
      case 1:
         MMIO(REG_3D_Texture1Address1, prev->texture[1].texOffset1);
      case 0:
         MMIO(REG_3D_Texture1Address0, prev->texture[1].texOffset0);
         MMIO(REG_3D_Texture1Pitch0, prev->texture[1].texPitch01);
      }
   }

   /* texture environment */
   if (smesa->GlobalFlag & GFLAG_TEXTUREENV) {
      MMIO(REG_3D_TextureBlendFactor, prev->hwTexEnvColor);
      MMIO(REG_3D_TextureColorBlendSet0, prev->hwTexBlendColor0);
      MMIO(REG_3D_TextureAlphaBlendSet0, prev->hwTexBlendAlpha0);
   }
   if (smesa->GlobalFlag & GFLAG_TEXTUREENV_1) {
      MMIO(REG_3D_TextureBlendFactor, prev->hwTexEnvColor);
      MMIO(REG_3D_TextureColorBlendSet1, prev->hwTexBlendColor1);
      MMIO(REG_3D_TextureAlphaBlendSet1, prev->hwTexBlendAlpha1);
   }

   smesa->GlobalFlag &= ~GFLAG_TEXTURE_STATES;
}

void
sis6326_update_render_state( sisContextPtr smesa )
{
   __GLSiSHardware *prev = &smesa->prev;

   mWait3DCmdQueue (45);

   if (smesa->GlobalFlag & GFLAG_ENABLESETTING) {
      if (!smesa->clearTexCache) {
	 MMIO(REG_6326_3D_TEnable, prev->hwCapEnable);
      } else {
	 MMIO(REG_6326_3D_TEnable, prev->hwCapEnable & ~S_ENABLE_TextureCache);
	 MMIO(REG_6326_3D_TEnable, prev->hwCapEnable);
	 smesa->clearTexCache = GL_FALSE;
      }
   }

   /* Z Setting */
   if (smesa->GlobalFlag & GFLAG_ZSETTING) {
      MMIO(REG_6326_3D_ZSet, prev->hwZ);
      MMIO(REG_6326_3D_ZAddress, prev->hwOffsetZ);
   }

   /* Alpha Setting */
   if (smesa->GlobalFlag & GFLAG_ALPHASETTING)
      MMIO(REG_6326_3D_AlphaSet, prev->hwAlpha);

   if (smesa->GlobalFlag & GFLAG_DESTSETTING) {
      MMIO(REG_6326_3D_DstSet, prev->hwDstSet);
      MMIO(REG_6326_3D_DstAddress, prev->hwOffsetDest);
   }

   /* Fog Setting */
   if (smesa->GlobalFlag & GFLAG_FOGSETTING) {
      MMIO(REG_6326_3D_FogSet, prev->hwFog);
   }

   /* Miscellaneous Setting */
   if (smesa->GlobalFlag & GFLAG_DSTBLEND)
      MMIO(REG_6326_3D_DstSrcBlendMode, prev->hwDstSrcBlend);

   if (smesa->GlobalFlag & GFLAG_CLIPPING) {
      MMIO(REG_6326_3D_ClipTopBottom, prev->clipTopBottom);
      MMIO(REG_6326_3D_ClipLeftRight, prev->clipLeftRight);
   }

  smesa->GlobalFlag &= ~GFLAG_RENDER_STATES;
}

void
sis6326_update_texture_state (sisContextPtr smesa)
{
   __GLSiSHardware *prev = &smesa->prev;

   mWait3DCmdQueue (55);
   if (smesa->clearTexCache || (smesa->GlobalFlag & GFLAG_TEXTUREADDRESS)) {
      MMIO(REG_6326_3D_TEnable, prev->hwCapEnable & ~S_ENABLE_TextureCache);
      MMIO(REG_6326_3D_TEnable, prev->hwCapEnable);
      smesa->clearTexCache = GL_FALSE;
   }

   /* Texture Setting */
   if (smesa->GlobalFlag & CFLAG_TEXTURERESET)
      MMIO(REG_6326_3D_TextureSet, prev->texture[0].hwTextureSet);

   if (smesa->GlobalFlag & GFLAG_TEXTUREMIPMAP)
      MMIO(REG_6326_3D_TextureWidthHeight, prev->texture[0].hwTexWidthHeight);

  /*
  MMIO(REG_3D_TextureTransparencyColorHigh, prev->texture[0].hwTextureClrHigh);
  MMIO(REG_3D_TextureTransparencyColorLow, prev->texture[0].hwTextureClrLow);
  */

   if (smesa->GlobalFlag & GFLAG_TEXBORDERCOLOR)
      MMIO(REG_6326_3D_TextureBorderColor, prev->texture[0].hwTextureBorderColor);

   if (smesa->GlobalFlag & GFLAG_TEXTUREADDRESS) {
      switch ((prev->texture[0].hwTextureSet & MASK_6326_TextureLevel) >> 8)
      {
      case 9:
         MMIO(REG_6326_3D_TextureAddress9, prev->texture[0].texOffset9);
         /* FALLTHROUGH */
      case 8:
         MMIO(REG_6326_3D_TextureAddress8, prev->texture[0].texOffset8);
         MMIO(REG_6326_3D_TexturePitch89, prev->texture[0].texPitch89);
         /* FALLTHROUGH */
      case 7:
         MMIO(REG_6326_3D_TextureAddress7, prev->texture[0].texOffset7);
         /* FALLTHROUGH */
      case 6:
         MMIO(REG_6326_3D_TextureAddress6, prev->texture[0].texOffset6);
         MMIO(REG_6326_3D_TexturePitch67, prev->texture[0].texPitch67);
         /* FALLTHROUGH */
      case 5:
         MMIO(REG_6326_3D_TextureAddress5, prev->texture[0].texOffset5);
         /* FALLTHROUGH */
      case 4:
         MMIO(REG_6326_3D_TextureAddress4, prev->texture[0].texOffset4);
         MMIO(REG_6326_3D_TexturePitch45, prev->texture[0].texPitch45);
         /* FALLTHROUGH */
      case 3:
         MMIO(REG_6326_3D_TextureAddress3, prev->texture[0].texOffset3);
         /* FALLTHROUGH */
      case 2:
         MMIO(REG_6326_3D_TextureAddress2, prev->texture[0].texOffset2);
         MMIO(REG_6326_3D_TexturePitch23, prev->texture[0].texPitch23);
         /* FALLTHROUGH */
      case 1:
         MMIO(REG_6326_3D_TextureAddress1, prev->texture[0].texOffset1);
         /* FALLTHROUGH */
      case 0:
	 MMIO(REG_6326_3D_TextureAddress0, prev->texture[0].texOffset0);
	 MMIO(REG_6326_3D_TexturePitch01, prev->texture[0].texPitch01);
	 break;
      }
   }

   /* texture environment */
   if (smesa->GlobalFlag & GFLAG_TEXTUREENV) {
      MMIO(REG_6326_3D_TextureBlendSet, prev->hwTexBlendSet);
   }

   smesa->GlobalFlag &= ~GFLAG_TEXTURE_STATES;
}