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/*
* Copyright 2001 by Alan Hourihane.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Alan Hourihane, <alanh@tungstengraphics.com>
*
*/
#include "gamma_context.h"
#include "gamma_vb.h"
#include "glint_dri.h"
#include "imports.h"
gammaScreenPtr gammaCreateScreen( __DRIscreenPrivate *sPriv )
{
gammaScreenPtr gammaScreen;
GLINTDRIPtr gDRIPriv = (GLINTDRIPtr)sPriv->pDevPriv;
int i;
if (sPriv->devPrivSize != sizeof(GLINTDRIRec)) {
fprintf(stderr,"\nERROR! sizeof(GLINTDRIRec) does not match passed size from device driver\n");
return GL_FALSE;
}
#if 0
/* Check the DRI externsion version */
if ( sPriv->driMajor != 3 || sPriv->driMinor != 1 ) {
__driUtilMessage( "Gamma DRI driver expected DRI version 4.0.x "
"but got version %d.%d.%d",
sPriv->driMajor, sPriv->driMinor, sPriv->driPatch );
return NULL;
}
/* Check that the DDX driver version is compatible */
if ( sPriv->ddxMajor != 4 ||
sPriv->ddxMinor != 0 ||
sPriv->ddxPatch < 0 ) {
__driUtilMessage( "r128 DRI driver expected DDX driver version 4.0.x but got version %d.%d.%d", sPriv->ddxMajor, sPriv->ddxMinor, sPriv->ddxPatch );
return GL_FALSE;
}
/* Check that the DRM driver version is compatible */
if ( sPriv->drmMajor != 2 ||
sPriv->drmMinor != 1 ||
sPriv->drmPatch < 0 ) {
__driUtilMessage( "r128 DRI driver expected DRM driver version 2.1.x but got version %d.%d.%d", sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch );
return GL_FALSE;
}
#endif
/* Allocate the private area */
gammaScreen = (gammaScreenPtr) CALLOC( sizeof(*gammaScreen) );
if ( !gammaScreen ) return NULL;
gammaScreen->regionCount = 4; /* Magic number. Can we fix this? */
gammaScreen->regions = CALLOC(gammaScreen->regionCount *
sizeof(gammaRegion));
gammaScreen->regions[0].handle = gDRIPriv->registers0.handle;
gammaScreen->regions[0].size = gDRIPriv->registers0.size;
gammaScreen->regions[1].handle = gDRIPriv->registers1.handle;
gammaScreen->regions[1].size = gDRIPriv->registers1.size;
gammaScreen->regions[2].handle = gDRIPriv->registers2.handle;
gammaScreen->regions[2].size = gDRIPriv->registers2.size;
gammaScreen->regions[3].handle = gDRIPriv->registers3.handle;
gammaScreen->regions[3].size = gDRIPriv->registers3.size;
/* Next, map all the regions */
for (i = 0; i < gammaScreen->regionCount; i++) {
if (drmMap(sPriv->fd,
gammaScreen->regions[i].handle,
gammaScreen->regions[i].size,
&gammaScreen->regions[i].map)) {
while (--i > 0) {
(void)drmUnmap(gammaScreen->regions[i].map,
gammaScreen->regions[i].size);
}
return GL_FALSE;
}
}
/* Get the list of dma buffers */
gammaScreen->bufs = drmMapBufs(sPriv->fd);
if (!gammaScreen->bufs) {
while (gammaScreen->regionCount > 0) {
(void)drmUnmap(gammaScreen->regions[gammaScreen->regionCount].map,
gammaScreen->regions[gammaScreen->regionCount].size);
gammaScreen->regionCount--;
}
return GL_FALSE;
}
gammaScreen->textureSize = gDRIPriv->textureSize;
gammaScreen->logTextureGranularity = gDRIPriv->logTextureGranularity;
gammaScreen->cpp = gDRIPriv->cpp;
gammaScreen->frontOffset = gDRIPriv->frontOffset;
gammaScreen->frontPitch = gDRIPriv->frontPitch;
gammaScreen->backOffset = gDRIPriv->backOffset;
gammaScreen->backPitch = gDRIPriv->backPitch;
gammaScreen->backX = gDRIPriv->backX;
gammaScreen->backY = gDRIPriv->backY;
gammaScreen->depthOffset = gDRIPriv->depthOffset;
gammaScreen->depthPitch = gDRIPriv->depthPitch;
gammaScreen->driScreen = sPriv;
return gammaScreen;
}
/* Destroy the device specific screen private data struct.
*/
void gammaDestroyScreen( __DRIscreenPrivate *sPriv )
{
gammaScreenPtr gammaScreen = (gammaScreenPtr)sPriv->private;
/* First, unmap the dma buffers */
drmUnmapBufs( gammaScreen->bufs );
/* Next, unmap all the regions */
while (gammaScreen->regionCount > 0) {
(void)drmUnmap(gammaScreen->regions[gammaScreen->regionCount].map,
gammaScreen->regions[gammaScreen->regionCount].size);
gammaScreen->regionCount--;
}
FREE(gammaScreen->regions);
FREE(gammaScreen);
}
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