/* Move locking out to get reasonable span performance.
*/
void i830SpanRenderStart( GLcontext *ctx )
{
i830ContextPtr imesa = I830_CONTEXT(ctx);
I830_FIREVERTICES(imesa);
LOCK_HARDWARE(imesa);
i830RegetLockQuiescent( imesa );
}
void i830Fallback( i830ContextPtr imesa, GLuint bit, GLboolean mode )
{
GLcontext *ctx = imesa->glCtx;
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLuint oldfallback = imesa->Fallback;
if (mode) {
imesa->Fallback |= bit;
if (oldfallback == 0) {
I830_FIREVERTICES(imesa);
if (I830_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "ENTER FALLBACK %s\n", getFallbackString( bit ));
_swsetup_Wakeup( ctx );
imesa->RenderIndex = ~0;
}
}
else {
imesa->Fallback &= ~bit;
if (oldfallback == bit) {
_swrast_flush( ctx );
if (I830_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString( bit ));
tnl->Driver.Render.Start = i830RenderStart;
tnl->Driver.Render.PrimitiveNotify = i830RenderPrimitive;
tnl->Driver.Render.Finish = i830RenderFinish;
tnl->Driver.Render.BuildVertices = i830BuildVertices;
imesa->NewGLState |= (_I830_NEW_RENDERSTATE|_I830_NEW_VERTEX);
}
}
}
/* Flip the front & back buffes
*/
void i830PageFlip( const __DRIdrawablePrivate *dPriv )
{
i830ContextPtr imesa;
int tmp, ret;
if (I830_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s\n", __FUNCTION__);
assert(dPriv);
assert(dPriv->driContextPriv);
assert(dPriv->driContextPriv->driverPrivate);
imesa = (i830ContextPtr) dPriv->driContextPriv->driverPrivate;
I830_FIREVERTICES( imesa );
LOCK_HARDWARE( imesa );
imesa->sarea->perf_boxes |= imesa->perf_boxes;
imesa->perf_boxes = 0;
if (dPriv->pClipRects) {
*(XF86DRIClipRectRec *)imesa->sarea->boxes = dPriv->pClipRects[0];
imesa->sarea->nbox = 1;
}
ret = drmCommandNone(imesa->driFd, DRM_I830_FLIP);
if (ret) {
fprintf(stderr, "%s: %d\n", __FUNCTION__, ret);
UNLOCK_HARDWARE( imesa );
exit(1);
}
tmp = GET_ENQUEUE_AGE(imesa);
UNLOCK_HARDWARE( imesa );
/* multiarb will suck the life out of the server without this throttle:
*/
if (GET_DISPATCH_AGE(imesa) < imesa->lastSwap) {
i830WaitAge(imesa, imesa->lastSwap);
}
i830SetDrawBuffer( imesa->glCtx, imesa->glCtx->Color.DriverDrawBuffer );
imesa->upload_cliprects = GL_TRUE;
imesa->lastSwap = tmp;
}
/*
* Copy the back buffer to the front buffer.
*/
void i830CopyBuffer( const __DRIdrawablePrivate *dPriv )
{
i830ContextPtr imesa;
XF86DRIClipRectPtr pbox;
int nbox, i, tmp;
assert(dPriv);
assert(dPriv->driContextPriv);
assert(dPriv->driContextPriv->driverPrivate);
imesa = (i830ContextPtr) dPriv->driContextPriv->driverPrivate;
I830_FIREVERTICES( imesa );
LOCK_HARDWARE( imesa );
imesa->sarea->perf_boxes |= imesa->perf_boxes;
imesa->perf_boxes = 0;
pbox = dPriv->pClipRects;
nbox = dPriv->numClipRects;
for (i = 0 ; i < nbox ; )
{
int nr = MIN2(i + I830_NR_SAREA_CLIPRECTS, dPriv->numClipRects);
XF86DRIClipRectRec *b = (XF86DRIClipRectRec *)imesa->sarea->boxes;
imesa->sarea->nbox = nr - i;
for ( ; i < nr ; i++)
*b++ = pbox[i];
drmCommandNone(imesa->driFd, DRM_I830_SWAP);
}
tmp = GET_ENQUEUE_AGE(imesa);
UNLOCK_HARDWARE( imesa );
/* multiarb will suck the life out of the server without this throttle:
*/
if (GET_DISPATCH_AGE(imesa) < imesa->lastSwap) {
i830WaitAge(imesa, imesa->lastSwap);
}
imesa->lastSwap = tmp;
imesa->upload_cliprects = GL_TRUE;
}
static void i830RunPipeline( GLcontext *ctx )
{
i830ContextPtr imesa = I830_CONTEXT(ctx);
if (imesa->NewGLState) {
if (imesa->NewGLState & _NEW_TEXTURE) {
I830_FIREVERTICES( imesa );
i830UpdateTextureState( ctx ); /* may modify imesa->NewGLState */
}
if (!imesa->Fallback) {
if (imesa->NewGLState & _I830_NEW_VERTEX)
i830ChooseVertexState( ctx );
if (imesa->NewGLState & _I830_NEW_RENDERSTATE)
i830ChooseRenderState( ctx );
}
imesa->NewGLState = 0;
}
_tnl_run_pipeline( ctx );
}
static void i830DDFlush( GLcontext *ctx )
{
i830ContextPtr imesa = I830_CONTEXT( ctx );
I830_FIREVERTICES( imesa );
}
/* This waits for *everybody* to finish rendering -- overkill.
*/
void i830DmaFinish( i830ContextPtr imesa )
{
I830_FIREVERTICES( imesa );
LOCK_HARDWARE_QUIESCENT( imesa );
UNLOCK_HARDWARE( imesa );
}
static void i830Clear(GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint cx1, GLint cy1, GLint cw, GLint ch)
{
i830ContextPtr imesa = I830_CONTEXT( ctx );
__DRIdrawablePrivate *dPriv = imesa->driDrawable;
const GLuint colorMask = *((GLuint *) &ctx->Color.ColorMask);
drmI830Clear clear;
GLbitfield tri_mask = 0;
int i;
GLint cx, cy;
/* flip top to bottom */
cy = dPriv->h-cy1-ch;
cx = cx1 + imesa->drawX;
cy += imesa->drawY;
if(0) fprintf(stderr, "\nClearColor : 0x%08x\n", imesa->ClearColor);
clear.flags = 0;
clear.clear_color = imesa->ClearColor;
clear.clear_depth = 0;
clear.clear_colormask = 0;
clear.clear_depthmask = 0;
I830_FIREVERTICES( imesa );
if (mask & DD_FRONT_LEFT_BIT) {
if(colorMask == ~0) {
clear.flags |= I830_FRONT;
} else {
tri_mask |= DD_FRONT_LEFT_BIT;
}
mask &= ~DD_FRONT_LEFT_BIT;
}
if (mask & DD_BACK_LEFT_BIT) {
if(colorMask == ~0) {
clear.flags |= I830_BACK;
} else {
tri_mask |= DD_BACK_LEFT_BIT;
}
mask &= ~DD_BACK_LEFT_BIT;
}
if (mask & DD_DEPTH_BIT) {
clear.flags |= I830_DEPTH;
clear.clear_depthmask = imesa->depth_clear_mask;
clear.clear_depth = (GLuint)(ctx->Depth.Clear * imesa->ClearDepth);
mask &= ~DD_DEPTH_BIT;
}
if((mask & DD_STENCIL_BIT) && imesa->hw_stencil) {
if (ctx->Stencil.WriteMask != 0xff) {
tri_mask |= DD_STENCIL_BIT;
} else {
clear.flags |= I830_DEPTH;
clear.clear_depthmask |= imesa->stencil_clear_mask;
clear.clear_depth |= imesa->stencil_clear_mask;
}
mask &= ~DD_STENCIL_BIT;
}
/* First check for clears that need to happen with triangles */
if(tri_mask) {
i830ClearWithTris(ctx, tri_mask, all, cx, cy, cw, ch);
} else {
mask |= tri_mask;
}
if (clear.flags) {
LOCK_HARDWARE( imesa );
for (i = 0 ; i < imesa->numClipRects ; )
{
int nr = MIN2(i + I830_NR_SAREA_CLIPRECTS, imesa->numClipRects);
XF86DRIClipRectRec *box = imesa->pClipRects;
drm_clip_rect_t *b = (drm_clip_rect_t *)imesa->sarea->boxes;
int n = 0;
if (!all) {
for ( ; i < nr ; i++) {
GLint x = box[i].x1;
GLint y = box[i].y1;
GLint w = box[i].x2 - x;
GLint h = box[i].y2 - y;
if (x < cx) w -= cx - x, x = cx;
if (y < cy) h -= cy - y, y = cy;
if (x + w > cx + cw) w = cx + cw - x;
if (y + h > cy + ch) h = cy + ch - y;
if (w <= 0) continue;
if (h <= 0) continue;
b->x1 = x;
b->y1 = y;
b->x2 = x + w;
b->y2 = y + h;
b++;
n++;
}
} else {
for ( ; i < nr ; i++) {
*b++ = *(drm_clip_rect_t *)&box[i];
n++;
}
}
imesa->sarea->nbox = n;
drmCommandWrite(imesa->driFd, DRM_I830_CLEAR,
&clear, sizeof(drmI830Clear));
}
UNLOCK_HARDWARE( imesa );
imesa->upload_cliprects = GL_TRUE;
}
if (mask)
_swrast_Clear( ctx, mask, all, cx1, cy1, cw, ch );
}