void intelFlushBatch( intelContextPtr intel, GLboolean refill )
{
if (intel->locked) {
intelFlushBatchLocked( intel, GL_FALSE, refill, GL_FALSE );
}
else {
LOCK_HARDWARE(intel);
intelFlushBatchLocked( intel, GL_FALSE, refill, GL_TRUE );
UNLOCK_HARDWARE(intel);
}
}
void intelInitBatchBuffer( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (!intel->intelScreen->allow_batchbuffer || getenv("INTEL_NO_BATCH")) {
intel->alloc.size = 8 * 1024;
intel->alloc.ptr = malloc( intel->alloc.size );
intel->alloc.offset = 0;
}
else {
switch (intel->intelScreen->deviceID) {
case PCI_CHIP_I865_G:
/* HW bug? Seems to crash if batchbuffer crosses 4k boundary.
*/
intel->alloc.size = 8 * 1024;
break;
default:
/* This is the smallest amount of memory the kernel deals with.
* We'd ideally like to make this smaller.
*/
intel->alloc.size = 1 << intel->intelScreen->logTextureGranularity;
break;
}
intel->alloc.ptr = intelAllocateAGP( intel, intel->alloc.size );
if (intel->alloc.ptr)
intel->alloc.offset =
intelAgpOffsetFromVirtual( intel, intel->alloc.ptr );
}
if (!intel->alloc.ptr) {
FALLBACK(intel, INTEL_FALLBACK_NO_BATCHBUFFER, 1);
}
else {
intel->prim.flush = 0;
intel->vtbl.emit_invarient_state( intel );
/* Make sure this gets to the hardware, even if we have no cliprects:
*/
LOCK_HARDWARE( intel );
intelFlushBatchLocked( intel, GL_TRUE, GL_FALSE, GL_TRUE );
UNLOCK_HARDWARE( intel );
}
}
/**
* Copy the window contents named by dPriv to the rotated (or reflected)
* color buffer.
* srcBuf is BUFFER_BIT_FRONT_LEFT or BUFFER_BIT_BACK_LEFT to indicate the source.
*/
void
i830RotateWindow(intelContextPtr intel, __DRIdrawablePrivate *dPriv,
GLuint srcBuf)
{
i830ContextPtr i830 = I830_CONTEXT( intel );
intelScreenPrivate *screen = intel->intelScreen;
const GLuint cpp = screen->cpp;
drm_clip_rect_t fullRect;
GLuint textureFormat, srcOffset, srcPitch;
const drm_clip_rect_t *clipRects;
int numClipRects;
int i;
int xOrig, yOrig;
int origNumClipRects;
drm_clip_rect_t *origRects;
/*
* set up hardware state
*/
intelFlush( &intel->ctx );
SET_STATE( i830, meta );
set_initial_state( i830 );
set_no_texture( i830 );
set_vertex_format( i830 );
set_no_depth_stencil_write( i830 );
set_color_mask( i830, GL_FALSE );
LOCK_HARDWARE(intel);
/* save current drawing origin and cliprects (restored at end) */
xOrig = intel->drawX;
yOrig = intel->drawY;
origNumClipRects = intel->numClipRects;
origRects = intel->pClipRects;
if (!intel->numClipRects)
goto done;
/*
* set drawing origin, cliprects for full-screen access to rotated screen
*/
fullRect.x1 = 0;
fullRect.y1 = 0;
fullRect.x2 = screen->rotatedWidth;
fullRect.y2 = screen->rotatedHeight;
intel->drawX = 0;
intel->drawY = 0;
intel->numClipRects = 1;
intel->pClipRects = &fullRect;
set_draw_region( i830, &screen->rotated );
if (cpp == 4)
textureFormat = MAPSURF_32BIT | MT_32BIT_ARGB8888;
else
textureFormat = MAPSURF_16BIT | MT_16BIT_RGB565;
if (srcBuf == BUFFER_BIT_FRONT_LEFT) {
srcPitch = screen->front.pitch; /* in bytes */
srcOffset = screen->front.offset; /* bytes */
clipRects = dPriv->pClipRects;
numClipRects = dPriv->numClipRects;
}
else {
srcPitch = screen->back.pitch; /* in bytes */
srcOffset = screen->back.offset; /* bytes */
clipRects = dPriv->pBackClipRects;
numClipRects = dPriv->numBackClipRects;
}
/* set the whole screen up as a texture to avoid alignment issues */
set_tex_rect_source(i830,
srcOffset,
screen->width,
screen->height,
srcPitch,
textureFormat);
enable_texture_blend_replace(i830);
/*
* loop over the source window's cliprects
*/
for (i = 0; i < numClipRects; i++) {
int srcX0 = clipRects[i].x1;
int srcY0 = clipRects[i].y1;
int srcX1 = clipRects[i].x2;
int srcY1 = clipRects[i].y2;
GLfloat verts[4][2], tex[4][2];
int j;
/* build vertices for four corners of clip rect */
verts[0][0] = srcX0; verts[0][1] = srcY0;
verts[1][0] = srcX1; verts[1][1] = srcY0;
verts[2][0] = srcX1; verts[2][1] = srcY1;
verts[3][0] = srcX0; verts[3][1] = srcY1;
/* .. and texcoords */
tex[0][0] = srcX0; tex[0][1] = srcY0;
tex[1][0] = srcX1; tex[1][1] = srcY0;
tex[2][0] = srcX1; tex[2][1] = srcY1;
tex[3][0] = srcX0; tex[3][1] = srcY1;
/* transform coords to rotated screen coords */
for (j = 0; j < 4; j++) {
matrix23TransformCoordf(&screen->rotMatrix,
&verts[j][0], &verts[j][1]);
}
/* draw polygon to map source image to dest region */
draw_poly(i830, 255, 255, 255, 255, 4, verts, tex);
} /* cliprect loop */
assert(!intel->prim.flush);
intelFlushBatchLocked( intel, GL_FALSE, GL_FALSE, GL_FALSE );
done:
/* restore original drawing origin and cliprects */
intel->drawX = xOrig;
intel->drawY = yOrig;
intel->numClipRects = origNumClipRects;
intel->pClipRects = origRects;
UNLOCK_HARDWARE(intel);
SET_STATE( i830, state );
}
void intelClearWithBlit(GLcontext *ctx, GLbitfield flags, GLboolean all,
GLint cx1, GLint cy1, GLint cw, GLint ch)
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
intelScreenPrivate *intelScreen = intel->intelScreen;
GLuint clear_depth, clear_color;
GLint cx, cy;
GLint pitch = intelScreen->frontPitch;
GLint cpp = intelScreen->cpp;
GLint i;
GLuint BR13, CMD, D_CMD;
BATCH_LOCALS;
clear_color = intel->ClearColor;
clear_depth = 0;
if (flags & BUFFER_BIT_DEPTH) {
clear_depth = (GLuint)(ctx->Depth.Clear * intel->ClearDepth);
}
if (flags & BUFFER_BIT_STENCIL) {
clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
}
switch(cpp) {
case 2:
BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
D_CMD = CMD = XY_COLOR_BLT_CMD;
break;
case 4:
BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24) | (1<<25);
CMD = (XY_COLOR_BLT_CMD |
XY_COLOR_BLT_WRITE_ALPHA |
XY_COLOR_BLT_WRITE_RGB);
D_CMD = XY_COLOR_BLT_CMD;
if (flags & BUFFER_BIT_DEPTH) D_CMD |= XY_COLOR_BLT_WRITE_RGB;
if (flags & BUFFER_BIT_STENCIL) D_CMD |= XY_COLOR_BLT_WRITE_ALPHA;
break;
default:
BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
D_CMD = CMD = XY_COLOR_BLT_CMD;
break;
}
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
/* flip top to bottom */
cy = intel->driDrawable->h-cy1-ch;
cx = cx1 + intel->drawX;
cy += intel->drawY;
/* adjust for page flipping */
if ( intel->sarea->pf_current_page == 1 ) {
GLuint tmp = flags;
flags &= ~(BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT);
if ( tmp & BUFFER_BIT_FRONT_LEFT ) flags |= BUFFER_BIT_BACK_LEFT;
if ( tmp & BUFFER_BIT_BACK_LEFT ) flags |= BUFFER_BIT_FRONT_LEFT;
}
for (i = 0 ; i < intel->numClipRects ; i++)
{
drm_clip_rect_t *box = &intel->pClipRects[i];
drm_clip_rect_t b;
if (!all) {
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;
} else {
b = *box;
}
if (b.x1 > b.x2 ||
b.y1 > b.y2 ||
b.x2 > intelScreen->width ||
b.y2 > intelScreen->height)
continue;
if ( flags & BUFFER_BIT_FRONT_LEFT ) {
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->frontOffset );
OUT_BATCH( clear_color );
ADVANCE_BATCH();
}
if ( flags & BUFFER_BIT_BACK_LEFT ) {
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->backOffset );
OUT_BATCH( clear_color );
ADVANCE_BATCH();
}
if ( flags & (BUFFER_BIT_STENCIL | BUFFER_BIT_DEPTH) ) {
BEGIN_BATCH( 6);
OUT_BATCH( D_CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->depthOffset );
OUT_BATCH( clear_depth );
ADVANCE_BATCH();
}
}
}
intelFlushBatchLocked( intel, GL_TRUE, GL_FALSE, GL_TRUE );
UNLOCK_HARDWARE( intel );
}
/*
* Copy the back buffer to the front buffer.
*/
void intelCopyBuffer( const __DRIdrawablePrivate *dPriv )
{
intelContextPtr intel;
if (0)
fprintf(stderr, "%s\n", __FUNCTION__);
assert(dPriv);
assert(dPriv->driContextPriv);
assert(dPriv->driContextPriv->driverPrivate);
intel = (intelContextPtr) dPriv->driContextPriv->driverPrivate;
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
intelScreenPrivate *intelScreen = intel->intelScreen;
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int nbox = dPriv->numClipRects;
drm_clip_rect_t *pbox = dPriv->pClipRects;
int pitch = intelScreen->frontPitch;
int cpp = intelScreen->cpp;
int i;
GLuint CMD, BR13;
BATCH_LOCALS;
switch(cpp) {
case 2:
BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24);
CMD = XY_SRC_COPY_BLT_CMD;
break;
case 4:
BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24) | (1<<25);
CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB);
break;
default:
BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24);
CMD = XY_SRC_COPY_BLT_CMD;
break;
}
if (0)
intel_draw_performance_boxes( intel );
for (i = 0 ; i < nbox; i++, pbox++)
{
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > intelScreen->width ||
pbox->y2 > intelScreen->height)
continue;
BEGIN_BATCH( 8);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (pbox->y1 << 16) | pbox->x1 );
OUT_BATCH( (pbox->y2 << 16) | pbox->x2 );
if (intel->sarea->pf_current_page == 0)
OUT_BATCH( intelScreen->frontOffset );
else
OUT_BATCH( intelScreen->backOffset );
OUT_BATCH( (pbox->y1 << 16) | pbox->x1 );
OUT_BATCH( BR13 & 0xffff );
if (intel->sarea->pf_current_page == 0)
OUT_BATCH( intelScreen->backOffset );
else
OUT_BATCH( intelScreen->frontOffset );
ADVANCE_BATCH();
}
}
intelFlushBatchLocked( intel, GL_TRUE, GL_TRUE, GL_TRUE );
UNLOCK_HARDWARE( intel );
}
