GUAC-240: Remove need for forward declarations of static functions.
This commit is contained in:
Michael Jumper
parent
379c4462ca
commit
254a0dded0
@ -117,17 +117,149 @@
|
||||
*/
|
||||
#define GUAC_COMMON_SURFACE_NON_LOSSY_REFRESH_THRESHOLD 3000
|
||||
|
||||
/*
|
||||
* Forward declarations.
|
||||
/**
|
||||
* Updates the coordinates of the given rectangle to be within the bounds of
|
||||
* the given surface.
|
||||
*
|
||||
* @param surface The surface to use for clipping.
|
||||
* @param rect The rectangle to clip.
|
||||
* @param sx The X coordinate of the source rectangle, if any.
|
||||
* @param sy The Y coordinate of the source rectangle, if any.
|
||||
*/
|
||||
static void __guac_common_bound_rect(guac_common_surface* surface,
|
||||
guac_common_rect* rect, int* sx, int* sy) {
|
||||
|
||||
guac_common_rect bounds_rect = {
|
||||
.x = 0,
|
||||
.y = 0,
|
||||
.width = surface->width,
|
||||
.height = surface->height
|
||||
};
|
||||
|
||||
int orig_x = rect->x;
|
||||
int orig_y = rect->y;
|
||||
|
||||
guac_common_rect_constrain(rect, &bounds_rect);
|
||||
|
||||
/* Update source X/Y if given */
|
||||
if (sx != NULL) *sx += rect->x - orig_x;
|
||||
if (sy != NULL) *sy += rect->y - orig_y;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the coordinates of the given rectangle to be within the clipping
|
||||
* rectangle of the given surface, which must always be within the bounding
|
||||
* rectangle of the given surface.
|
||||
*
|
||||
* @param surface The surface to use for clipping.
|
||||
* @param rect The rectangle to clip.
|
||||
* @param sx The X coordinate of the source rectangle, if any.
|
||||
* @param sy The Y coordinate of the source rectangle, if any.
|
||||
*/
|
||||
static void __guac_common_clip_rect(guac_common_surface* surface,
|
||||
guac_common_rect* rect, int* sx, int* sy);
|
||||
static int __guac_common_should_combine(guac_common_surface* surface,
|
||||
const guac_common_rect* rect, int rect_only);
|
||||
static void __guac_common_mark_dirty(guac_common_surface* surface,
|
||||
const guac_common_rect* rect);
|
||||
static void __guac_common_surface_flush_rect_to_queue(guac_common_surface* surface,
|
||||
const guac_common_rect* rect);
|
||||
guac_common_rect* rect, int* sx, int* sy) {
|
||||
|
||||
int orig_x = rect->x;
|
||||
int orig_y = rect->y;
|
||||
|
||||
/* Just bound within surface if no clipping rectangle applied */
|
||||
if (!surface->clipped) {
|
||||
__guac_common_bound_rect(surface, rect, sx, sy);
|
||||
return;
|
||||
}
|
||||
|
||||
guac_common_rect_constrain(rect, &surface->clip_rect);
|
||||
|
||||
/* Update source X/Y if given */
|
||||
if (sx != NULL) *sx += rect->x - orig_x;
|
||||
if (sy != NULL) *sy += rect->y - orig_y;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns whether the given rectangle should be combined into the existing
|
||||
* dirty rectangle, to be eventually flushed as a "png" instruction.
|
||||
*
|
||||
* @param surface The surface to be queried.
|
||||
* @param rect The update rectangle.
|
||||
* @param rect_only Non-zero if this update, by its nature, contains only
|
||||
* metainformation about the update's rectangle, zero if
|
||||
* the update also contains image data.
|
||||
* @return Non-zero if the update should be combined with any existing update,
|
||||
* zero otherwise.
|
||||
*/
|
||||
static int __guac_common_should_combine(guac_common_surface* surface, const guac_common_rect* rect, int rect_only) {
|
||||
|
||||
if (surface->dirty) {
|
||||
|
||||
int combined_cost, dirty_cost, update_cost;
|
||||
|
||||
/* Simulate combination */
|
||||
guac_common_rect combined = surface->dirty_rect;
|
||||
guac_common_rect_extend(&combined, rect);
|
||||
|
||||
/* Combine if result is still small */
|
||||
if (combined.width <= GUAC_SURFACE_NEGLIGIBLE_WIDTH && combined.height <= GUAC_SURFACE_NEGLIGIBLE_HEIGHT)
|
||||
return 1;
|
||||
|
||||
/* Estimate costs of the existing update, new update, and both combined */
|
||||
combined_cost = GUAC_SURFACE_BASE_COST + combined.width * combined.height;
|
||||
dirty_cost = GUAC_SURFACE_BASE_COST + surface->dirty_rect.width * surface->dirty_rect.height;
|
||||
update_cost = GUAC_SURFACE_BASE_COST + rect->width * rect->height;
|
||||
|
||||
/* Reduce cost if no image data */
|
||||
if (rect_only)
|
||||
update_cost /= GUAC_SURFACE_DATA_FACTOR;
|
||||
|
||||
/* Combine if cost estimate shows benefit */
|
||||
if (combined_cost <= update_cost + dirty_cost)
|
||||
return 1;
|
||||
|
||||
/* Combine if increase in cost is negligible */
|
||||
if (combined_cost - dirty_cost <= dirty_cost / GUAC_SURFACE_NEGLIGIBLE_INCREASE)
|
||||
return 1;
|
||||
|
||||
if (combined_cost - update_cost <= update_cost / GUAC_SURFACE_NEGLIGIBLE_INCREASE)
|
||||
return 1;
|
||||
|
||||
/* Combine if we anticipate further updates, as this update follows a common fill pattern */
|
||||
if (rect->x == surface->dirty_rect.x && rect->y == surface->dirty_rect.y + surface->dirty_rect.height) {
|
||||
if (combined_cost <= (dirty_cost + update_cost) * GUAC_SURFACE_FILL_PATTERN_FACTOR)
|
||||
return 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* Otherwise, do not combine */
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Expands the dirty rect of the given surface to contain the rect described by the given
|
||||
* coordinates.
|
||||
*
|
||||
* @param surface The surface to mark as dirty.
|
||||
* @param rect The rectangle of the update which is dirtying the surface.
|
||||
*/
|
||||
static void __guac_common_mark_dirty(guac_common_surface* surface, const guac_common_rect* rect) {
|
||||
|
||||
/* Ignore empty rects */
|
||||
if (rect->width <= 0 || rect->height <= 0)
|
||||
return;
|
||||
|
||||
/* If already dirty, update existing rect */
|
||||
if (surface->dirty)
|
||||
guac_common_rect_extend(&surface->dirty_rect, rect);
|
||||
|
||||
/* Otherwise init dirty rect */
|
||||
else {
|
||||
surface->dirty_rect = *rect;
|
||||
surface->dirty = 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Flush a surface's lossy area to the dirty rectangle. This will make the
|
||||
@ -249,6 +381,23 @@ static void __guac_common_surface_flush_to_bitmap_impl(guac_common_surface* surf
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Flushes the rectangle to the given surface's bitmap queue. There MUST be
|
||||
* space within the queue.
|
||||
*
|
||||
* @param surface The surface queue to flush to.
|
||||
* @param rect The rectangle to flush.
|
||||
*/
|
||||
static void __guac_common_surface_flush_rect_to_queue(guac_common_surface* surface,
|
||||
const guac_common_rect* rect) {
|
||||
guac_common_surface_bitmap_rect* bitmap_rect;
|
||||
|
||||
/* Add new rect to queue */
|
||||
bitmap_rect = &(surface->bitmap_queue[surface->bitmap_queue_length++]);
|
||||
bitmap_rect->rect = *rect;
|
||||
bitmap_rect->flushed = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Flushes the bitmap update currently described by a lossy rectangle within the
|
||||
* given surface.
|
||||
@ -499,150 +648,6 @@ static void __guac_common_surface_touch_rect(guac_common_surface* surface,
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the coordinates of the given rectangle to be within the bounds of
|
||||
* the given surface.
|
||||
*
|
||||
* @param surface The surface to use for clipping.
|
||||
* @param rect The rectangle to clip.
|
||||
* @param sx The X coordinate of the source rectangle, if any.
|
||||
* @param sy The Y coordinate of the source rectangle, if any.
|
||||
*/
|
||||
static void __guac_common_bound_rect(guac_common_surface* surface,
|
||||
guac_common_rect* rect, int* sx, int* sy) {
|
||||
|
||||
guac_common_rect bounds_rect = {
|
||||
.x = 0,
|
||||
.y = 0,
|
||||
.width = surface->width,
|
||||
.height = surface->height
|
||||
};
|
||||
|
||||
int orig_x = rect->x;
|
||||
int orig_y = rect->y;
|
||||
|
||||
guac_common_rect_constrain(rect, &bounds_rect);
|
||||
|
||||
/* Update source X/Y if given */
|
||||
if (sx != NULL) *sx += rect->x - orig_x;
|
||||
if (sy != NULL) *sy += rect->y - orig_y;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the coordinates of the given rectangle to be within the clipping
|
||||
* rectangle of the given surface, which must always be within the bounding
|
||||
* rectangle of the given surface.
|
||||
*
|
||||
* @param surface The surface to use for clipping.
|
||||
* @param rect The rectangle to clip.
|
||||
* @param sx The X coordinate of the source rectangle, if any.
|
||||
* @param sy The Y coordinate of the source rectangle, if any.
|
||||
*/
|
||||
static void __guac_common_clip_rect(guac_common_surface* surface,
|
||||
guac_common_rect* rect, int* sx, int* sy) {
|
||||
|
||||
int orig_x = rect->x;
|
||||
int orig_y = rect->y;
|
||||
|
||||
/* Just bound within surface if no clipping rectangle applied */
|
||||
if (!surface->clipped) {
|
||||
__guac_common_bound_rect(surface, rect, sx, sy);
|
||||
return;
|
||||
}
|
||||
|
||||
guac_common_rect_constrain(rect, &surface->clip_rect);
|
||||
|
||||
/* Update source X/Y if given */
|
||||
if (sx != NULL) *sx += rect->x - orig_x;
|
||||
if (sy != NULL) *sy += rect->y - orig_y;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns whether the given rectangle should be combined into the existing
|
||||
* dirty rectangle, to be eventually flushed as a "png" instruction.
|
||||
*
|
||||
* @param surface The surface to be queried.
|
||||
* @param rect The update rectangle.
|
||||
* @param rect_only Non-zero if this update, by its nature, contains only
|
||||
* metainformation about the update's rectangle, zero if
|
||||
* the update also contains image data.
|
||||
* @return Non-zero if the update should be combined with any existing update,
|
||||
* zero otherwise.
|
||||
*/
|
||||
static int __guac_common_should_combine(guac_common_surface* surface, const guac_common_rect* rect, int rect_only) {
|
||||
|
||||
if (surface->dirty) {
|
||||
|
||||
int combined_cost, dirty_cost, update_cost;
|
||||
|
||||
/* Simulate combination */
|
||||
guac_common_rect combined = surface->dirty_rect;
|
||||
guac_common_rect_extend(&combined, rect);
|
||||
|
||||
/* Combine if result is still small */
|
||||
if (combined.width <= GUAC_SURFACE_NEGLIGIBLE_WIDTH && combined.height <= GUAC_SURFACE_NEGLIGIBLE_HEIGHT)
|
||||
return 1;
|
||||
|
||||
/* Estimate costs of the existing update, new update, and both combined */
|
||||
combined_cost = GUAC_SURFACE_BASE_COST + combined.width * combined.height;
|
||||
dirty_cost = GUAC_SURFACE_BASE_COST + surface->dirty_rect.width * surface->dirty_rect.height;
|
||||
update_cost = GUAC_SURFACE_BASE_COST + rect->width * rect->height;
|
||||
|
||||
/* Reduce cost if no image data */
|
||||
if (rect_only)
|
||||
update_cost /= GUAC_SURFACE_DATA_FACTOR;
|
||||
|
||||
/* Combine if cost estimate shows benefit */
|
||||
if (combined_cost <= update_cost + dirty_cost)
|
||||
return 1;
|
||||
|
||||
/* Combine if increase in cost is negligible */
|
||||
if (combined_cost - dirty_cost <= dirty_cost / GUAC_SURFACE_NEGLIGIBLE_INCREASE)
|
||||
return 1;
|
||||
|
||||
if (combined_cost - update_cost <= update_cost / GUAC_SURFACE_NEGLIGIBLE_INCREASE)
|
||||
return 1;
|
||||
|
||||
/* Combine if we anticipate further updates, as this update follows a common fill pattern */
|
||||
if (rect->x == surface->dirty_rect.x && rect->y == surface->dirty_rect.y + surface->dirty_rect.height) {
|
||||
if (combined_cost <= (dirty_cost + update_cost) * GUAC_SURFACE_FILL_PATTERN_FACTOR)
|
||||
return 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* Otherwise, do not combine */
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Expands the dirty rect of the given surface to contain the rect described by the given
|
||||
* coordinates.
|
||||
*
|
||||
* @param surface The surface to mark as dirty.
|
||||
* @param rect The rectangle of the update which is dirtying the surface.
|
||||
*/
|
||||
static void __guac_common_mark_dirty(guac_common_surface* surface, const guac_common_rect* rect) {
|
||||
|
||||
/* Ignore empty rects */
|
||||
if (rect->width <= 0 || rect->height <= 0)
|
||||
return;
|
||||
|
||||
/* If already dirty, update existing rect */
|
||||
if (surface->dirty)
|
||||
guac_common_rect_extend(&surface->dirty_rect, rect);
|
||||
|
||||
/* Otherwise init dirty rect */
|
||||
else {
|
||||
surface->dirty_rect = *rect;
|
||||
surface->dirty = 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Expands the lossy dirty rectangle of the given surface to contain the
|
||||
* rectangle described by the given coordinates.
|
||||
@ -672,23 +677,6 @@ static void __guac_common_mark_lossy_dirty(guac_common_surface* surface,
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Flushes the rectangle to the given surface's bitmap queue. There MUST be
|
||||
* space within the queue.
|
||||
*
|
||||
* @param surface The surface queue to flush to.
|
||||
* @param rect The rectangle to flush.
|
||||
*/
|
||||
static void __guac_common_surface_flush_rect_to_queue(guac_common_surface* surface,
|
||||
const guac_common_rect* rect) {
|
||||
guac_common_surface_bitmap_rect* bitmap_rect;
|
||||
|
||||
/* Add new rect to queue */
|
||||
bitmap_rect = &(surface->bitmap_queue[surface->bitmap_queue_length++]);
|
||||
bitmap_rect->rect = *rect;
|
||||
bitmap_rect->flushed = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Flushes the bitmap update currently described by the dirty rectangle within the
|
||||
* given surface to that surface's bitmap queue. There MUST be space within the
|
||||
|
||||
Loading…
Reference in New Issue
Block a user