static void do_draw_pix( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint pitch,
const void *pixels,
GLuint dest )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = intel->driDrawable;
drm_clip_rect_t *box = dPriv->pClipRects;
int nbox = dPriv->numClipRects;
int i;
int src_offset = intelAgpOffsetFromVirtual( intel, pixels);
int src_pitch = pitch;
assert(src_offset != ~0); /* should be caught earlier */
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
if (ctx->DrawBuffer)
{
y -= height; /* cope with pixel zoom */
if (!clip_pixelrect(ctx, ctx->DrawBuffer,
&x, &y, &width, &height)) {
UNLOCK_HARDWARE( intel );
return;
}
y = dPriv->h - y - height; /* convert from gl to hardware coords */
x += dPriv->x;
y += dPriv->y;
for (i = 0 ; i < nbox ; i++ )
{
GLint bx, by, bw, bh;
if (intersect_region(box + i, x, y, width, height,
&bx, &by, &bw, &bh)) {
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
intel->intelScreen->front.pitch,
intel->drawRegion->offset,
bx - x, by - y,
bx, by,
bw, bh );
}
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
}
static void do_draw_pix( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint pitch,
const void *pixels,
GLuint dest )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = intel->driDrawable;
drm_clip_rect_t *box = dPriv->pClipRects;
int nbox = dPriv->numClipRects;
int i;
int size;
int src_offset = intelAgpOffsetFromVirtual( intel, pixels);
int src_pitch = pitch;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
if (ctx->DrawBuffer)
{
y -= height; /* cope with pixel zoom */
if (!clip_pixelrect(ctx, ctx->DrawBuffer,
&x, &y, &width, &height,
&size)) {
UNLOCK_HARDWARE( intel );
return;
}
y = dPriv->h - y - height; /* convert from gl to hardware coords */
x += dPriv->x;
y += dPriv->y;
for (i = 0 ; i < nbox ; i++ )
{
GLint bx = box[i].x1;
GLint by = box[i].y1;
GLint bw = box[i].x2 - bx;
GLint bh = box[i].y2 - by;
if (bx < x) bw -= x - bx, bx = x;
if (by < y) bh -= y - by, by = y;
if (bx + bw > x + width) bw = x + width - bx;
if (by + bh > y + height) bh = y + height - by;
if (bw <= 0) continue;
if (bh <= 0) continue;
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
intel->intelScreen->frontPitch,
intel->drawOffset,
bx - x, by - y,
bx, by,
bw, bh );
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
}
static GLboolean
intelTryReadPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack,
GLvoid *pixels )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLint size = 0; /* not really used */
GLint pitch = pack->RowLength ? pack->RowLength : width;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
/* Only accelerate reading to agp buffers.
*/
if ( !intelIsAgpMemory(intel, pixels,
pitch * height * intel->intelScreen->cpp ) ) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: dest not agp\n", __FUNCTION__);
return GL_FALSE;
}
/* Need GL_PACK_INVERT_MESA to cope with upsidedown results from
* blitter:
*/
if (!pack->Invert) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__);
return GL_FALSE;
}
if (!check_color(ctx, type, format, pack, pixels, size, pitch))
return GL_FALSE;
switch ( intel->intelScreen->cpp ) {
case 4:
break;
default:
return GL_FALSE;
}
/* Although the blits go on the command buffer, need to do this and
* fire with lock held to guarentee cliprects and drawing offset are
* correct.
*
* This is an unusual situation however, as the code which flushes
* a full command buffer expects to be called unlocked. As a
* workaround, immediately flush the buffer on aquiring the lock.
*/
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int nbox = dPriv->numClipRects;
int src_offset = intel->readRegion->offset;
int src_pitch = intel->intelScreen->front.pitch;
int dst_offset = intelAgpOffsetFromVirtual( intel, pixels);
drm_clip_rect_t *box = dPriv->pClipRects;
int i;
assert(dst_offset != ~0); /* should have been caught above */
if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height)) {
UNLOCK_HARDWARE( intel );
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s totally clipped -- nothing to do\n",
__FUNCTION__);
return GL_TRUE;
}
/* convert to screen coords (y=0=top) */
y = dPriv->h - y - height;
x += dPriv->x;
y += dPriv->y;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n",
src_pitch, pitch);
/* We don't really have to do window clipping for readpixels.
* The OpenGL spec says that pixels read from outside the
* visible window region (pixel ownership) have undefined value.
*/
for (i = 0 ; i < nbox ; i++)
{
GLint bx, by, bw, bh;
if (intersect_region(box+i, x, y, width, height,
&bx, &by, &bw, &bh)) {
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
pitch, dst_offset,
bx, by,
bx - x, by - y,
bw, bh );
}
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
return GL_TRUE;
}
static GLboolean
intelTryReadPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack,
GLvoid *pixels )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLint size = 0;
GLint pitch = pack->RowLength ? pack->RowLength : width;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
/* Only accelerate reading to agp buffers.
*/
if ( !intelIsAgpMemory(intel, pixels,
pitch * height * intel->intelScreen->cpp ) ) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: dest not agp\n", __FUNCTION__);
return GL_FALSE;
}
/* Need GL_PACK_INVERT_MESA to cope with upsidedown results from
* blitter:
*/
if (!pack->Invert) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__);
return GL_FALSE;
}
if (!check_color(ctx, type, format, pack, pixels, size, pitch))
return GL_FALSE;
switch ( intel->intelScreen->cpp ) {
case 4:
break;
default:
return GL_FALSE;
}
/* Although the blits go on the command buffer, need to do this and
* fire with lock held to guarentee cliprects and drawOffset are
* correct.
*
* This is an unusual situation however, as the code which flushes
* a full command buffer expects to be called unlocked. As a
* workaround, immediately flush the buffer on aquiring the lock.
*/
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int nbox = dPriv->numClipRects;
int src_offset = intel->drawOffset;
int src_pitch = intel->intelScreen->frontPitch;
int dst_offset = intelAgpOffsetFromVirtual( intel, pixels);
drm_clip_rect_t *box = dPriv->pClipRects;
int i;
if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height,
&size)) {
UNLOCK_HARDWARE( intel );
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s totally clipped -- nothing to do\n",
__FUNCTION__);
return GL_TRUE;
}
y = dPriv->h - y - height;
x += dPriv->x;
y += dPriv->y;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n",
src_pitch, pitch);
for (i = 0 ; i < nbox ; i++)
{
GLint bx = box[i].x1;
GLint by = box[i].y1;
GLint bw = box[i].x2 - bx;
GLint bh = box[i].y2 - by;
if (bx < x) bw -= x - bx, bx = x;
if (by < y) bh -= y - by, by = y;
if (bx + bw > x + width) bw = x + width - bx;
if (by + bh > y + height) bh = y + height - by;
if (bw <= 0) continue;
if (bh <= 0) continue;
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
pitch, dst_offset,
bx, by,
bx - x, by - y,
bw, bh );
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
return GL_TRUE;
}
