void i830FlushPrimsLocked( i830ContextPtr imesa )
{
XF86DRIClipRectPtr pbox = (XF86DRIClipRectPtr)imesa->pClipRects;
int nbox = imesa->numClipRects;
drmBufPtr buffer = imesa->vertex_buffer;
I830SAREAPtr sarea = imesa->sarea;
drmI830Vertex vertex;
int i, nr;
if (I830_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s dirty: %08x\n", __FUNCTION__, imesa->dirty);
vertex.idx = buffer->idx;
vertex.used = imesa->vertex_low;
vertex.discard = 0;
sarea->vertex_prim = imesa->hw_primitive;
/* Reset imesa vars:
*/
imesa->vertex_buffer = 0;
imesa->vertex_addr = 0;
imesa->vertex_low = 0;
imesa->vertex_high = 0;
imesa->vertex_last_prim = 0;
if (imesa->dirty) {
if (I830_DEBUG & DEBUG_SANITY)
i830EmitHwStateLockedDebug(imesa);
else
i830EmitHwStateLocked(imesa);
}
if (I830_DEBUG & DEBUG_IOCTL)
fprintf(stderr,"%s: Vertex idx %d used %d discard %d\n",
__FUNCTION__, vertex.idx, vertex.used, vertex.discard);
if (!nbox) {
vertex.used = 0;
vertex.discard = 1;
if (drmCommandWrite (imesa->driFd, DRM_I830_VERTEX,
&vertex, sizeof(drmI830Vertex))) {
fprintf(stderr, "DRM_I830_VERTEX: %d\n", -errno);
UNLOCK_HARDWARE(imesa);
exit(1);
}
return;
}
for (i = 0 ; i < nbox ; i = nr ) {
XF86DRIClipRectPtr b = sarea->boxes;
int j;
nr = MIN2(i + I830_NR_SAREA_CLIPRECTS, nbox);
sarea->nbox = nr - i;
for ( j = i ; j < nr ; j++) {
b[j-i] = pbox[j];
}
/* Finished with the buffer?
*/
if (nr == nbox)
vertex.discard = 1;
/* Do a bunch of sanity checks on the vertices sent to the hardware */
if (I830_DEBUG & DEBUG_SANITY) {
i830VertexSanity(imesa, vertex);
for ( j = 0 ; j < sarea->nbox ; j++) {
fprintf(stderr, "box %d/%d %d,%d %d,%d\n",
j, sarea->nbox, b[j].x1, b[j].y1, b[j].x2, b[j].y2);
}
}
drmCommandWrite (imesa->driFd, DRM_I830_VERTEX,
&vertex, sizeof(drmI830Vertex));
age_imesa(imesa, imesa->sarea->last_enqueue);
}
imesa->dirty = 0;
imesa->upload_cliprects = GL_FALSE;
}
void i810FlushPrimsLocked( i810ContextPtr imesa )
{
drm_clip_rect_t *pbox = imesa->pClipRects;
int nbox = imesa->numClipRects;
drmBufPtr buffer = imesa->vertex_buffer;
I810SAREAPtr sarea = imesa->sarea;
drmI810Vertex vertex;
int i;
if (I810_DEBUG & DEBUG_STATE)
i810PrintDirty( __FUNCTION__, imesa->dirty );
if (imesa->dirty)
emit_state( imesa );
vertex.idx = buffer->idx;
vertex.used = imesa->vertex_low;
vertex.discard = 0;
sarea->vertex_prim = imesa->hw_primitive;
if (!nbox) {
vertex.used = 0;
}
else if (nbox > I810_NR_SAREA_CLIPRECTS) {
imesa->upload_cliprects = GL_TRUE;
}
if (!nbox || !imesa->upload_cliprects)
{
if (nbox == 1)
sarea->nbox = 0;
else
sarea->nbox = nbox;
vertex.discard = 1;
drmCommandWrite(imesa->driFd, DRM_I810_VERTEX,
&vertex, sizeof(drmI810Vertex));
age_imesa(imesa, sarea->last_enqueue);
}
else
{
for (i = 0 ; i < nbox ; )
{
int nr = MIN2(i + I810_NR_SAREA_CLIPRECTS, nbox);
drm_clip_rect_t *b = (drm_clip_rect_t *)sarea->boxes;
if (imesa->scissor) {
sarea->nbox = 0;
for ( ; i < nr ; i++) {
b->x1 = pbox[i].x1 - imesa->drawX;
b->y1 = pbox[i].y1 - imesa->drawY;
b->x2 = pbox[i].x2 - imesa->drawX;
b->y2 = pbox[i].y2 - imesa->drawY;
if (intersect_rect(b, b, &imesa->scissor_rect)) {
sarea->nbox++;
b++;
}
}
/* Culled?
*/
if (!sarea->nbox) {
if (nr < nbox) continue;
vertex.used = 0;
}
} else {
sarea->nbox = nr - i;
for ( ; i < nr ; i++, b++) {
b->x1 = pbox[i].x1 - imesa->drawX;
b->y1 = pbox[i].y1 - imesa->drawY;
b->x2 = pbox[i].x2 - imesa->drawX;
b->y2 = pbox[i].y2 - imesa->drawY;
}
}
/* Finished with the buffer?
*/
if (nr == nbox)
vertex.discard = 1;
drmCommandWrite(imesa->driFd, DRM_I810_VERTEX,
&vertex, sizeof(drmI810Vertex));
age_imesa(imesa, imesa->sarea->last_enqueue);
}
}
/* Reset imesa vars:
*/
imesa->vertex_buffer = 0;
imesa->vertex_addr = 0;
imesa->vertex_low = 0;
imesa->vertex_high = 0;
imesa->vertex_last_prim = 0;
imesa->dirty = 0;
imesa->upload_cliprects = GL_FALSE;
}
