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vmwgfx: Do better culling of presents

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Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jakob Bornecrantz 2011-11-28 13:19:13 +01:00 committed by Dave Airlie
parent e7ac9211f2
commit 203dc22013
1 changed files with 25 additions and 12 deletions
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37
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -1098,6 +1098,7 @@ int vmw_kms_present(struct vmw_private *dev_priv,
size_t fifo_size;
int i, k, num_units;
int ret = 0; /* silence warning */
int left, right, top, bottom;
struct {
SVGA3dCmdHeader header;
@ -1122,30 +1123,42 @@ int vmw_kms_present(struct vmw_private *dev_priv,
return -ENOMEM;
}
left = clips->x;
right = clips->x + clips->w;
top = clips->y;
bottom = clips->y + clips->h;
for (i = 1; i < num_clips; i++) {
left = min_t(int, left, (int)clips[i].x);
right = max_t(int, right, (int)clips[i].x + clips[i].w);
top = min_t(int, top, (int)clips[i].y);
bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
}
/* only need to do this once */
memset(cmd, 0, fifo_size);
cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
cmd->body.srcRect.left = 0;
cmd->body.srcRect.right = surface->sizes[0].width;
cmd->body.srcRect.top = 0;
cmd->body.srcRect.bottom = surface->sizes[0].height;
cmd->body.srcRect.left = left;
cmd->body.srcRect.right = right;
cmd->body.srcRect.top = top;
cmd->body.srcRect.bottom = bottom;
blits = (SVGASignedRect *)&cmd[1];
for (i = 0; i < num_clips; i++) {
blits[i].left = clips[i].x;
blits[i].right = clips[i].x + clips[i].w;
blits[i].top = clips[i].y;
blits[i].bottom = clips[i].y + clips[i].h;
blits[i].left = clips[i].x - left;
blits[i].right = clips[i].x + clips[i].w - left;
blits[i].top = clips[i].y - top;
blits[i].bottom = clips[i].y + clips[i].h - top;
}
for (k = 0; k < num_units; k++) {
struct vmw_display_unit *unit = units[k];
int clip_x1 = destX - unit->crtc.x;
int clip_y1 = destY - unit->crtc.y;
int clip_x2 = clip_x1 + surface->sizes[0].width;
int clip_y2 = clip_y1 + surface->sizes[0].height;
int clip_x1 = left + destX - unit->crtc.x;
int clip_y1 = top + destY - unit->crtc.y;
int clip_x2 = right + destX - unit->crtc.x;
int clip_y2 = bottom + destY - unit->crtc.y;
/* skip any crtcs that misses the clip region */
if (clip_x1 >= unit->crtc.mode.hdisplay ||