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fix OpenGL image cache behavior for big images; add DrawBuf.invalidate() to update chaches with changed image; fix #222

This commit is contained in:
Vadim Lopatin 2016-03-29 09:36:27 +03:00
parent 1564237c45
commit 59c6df1c06
2 changed files with 34 additions and 10 deletions
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12
src/dlangui/graphics/drawbuf.d
View File

@ -98,6 +98,18 @@ class DrawBuf : RefCountedObject {
@property void onDestroyCallback(void function(uint) callback) { _onDestroyCallback = callback; }
@property void function(uint) onDestroyCallback() { return _onDestroyCallback; }
/// Call to remove this image from OpenGL cache when image is updated.
void invalidate() {
static if (ENABLE_OPENGL) {
if (_onDestroyCallback) {
// remove from cache
_onDestroyCallback(_id);
// assign new ID
_id = drawBufIdGenerator++;
}
}
}
// ===================================================
// 9-patch functions (image scaling using 9-patch markup - unscaled frame and scaled middle parts).
// See Android documentation for details.

32
src/dlangui/graphics/gldrawbuf.d
View File

@ -360,28 +360,30 @@ private abstract class GLCache
if (_closed)
return null;
int spacer = (width == _tdx || height == _tdy) ? 0 : 1;
// next line if necessary
if (_x + width + 2 > _tdx) {
if (_x + width + spacer * 2 > _tdx) {
// move to next line
_currentLine = _nextLine;
_x = 0;
}
// check if no room left for glyph height
if (_currentLine + height + 2 > _tdy) {
if (_currentLine + height + spacer * 2 > _tdy) {
_closed = true;
return null;
}
cacheItem._rc = Rect(_x + 1, _currentLine + 1, _x + width + 1, _currentLine + height + 1);
cacheItem._rc = Rect(_x + spacer, _currentLine + spacer, _x + width + spacer, _currentLine + height + spacer);
if (height && width) {
if (_nextLine < _currentLine + height + 2)
_nextLine = _currentLine + height + 2;
if (_nextLine < _currentLine + height + 2 * spacer)
_nextLine = _currentLine + height + 2 * spacer;
if (!_drawbuf) {
_drawbuf = new ColorDrawBuf(_tdx, _tdy);
//_drawbuf.SetBackgroundColor(0x000000);
//_drawbuf.SetTextColor(0xFFFFFF);
_drawbuf.fill(0xFF000000);
}
_x += width + 1;
_x += width + spacer;
_needUpdateTexture = true;
}
_itemCount++;
@ -487,9 +489,17 @@ private class GLImageCache : GLCache
void convertPixelFormat(GLCacheItem item) {
Rect rc = item._rc;
for (int y = rc.top - 1; y <= rc.bottom; y++) {
if (rc.top > 0)
rc.top--;
if (rc.left > 0)
rc.left--;
if (rc.right < _tdx)
rc.right++;
if (rc.bottom < _tdy)
rc.bottom++;
for (int y = rc.top; y < rc.bottom; y++) {
uint * row = _drawbuf.scanLine(y);
for (int x = rc.left - 1; x <= rc.right; x++) {
for (int x = rc.left; x < rc.right; x++) {
uint cl = row[x];
// invert A
cl ^= 0xFF000000;
@ -586,8 +596,10 @@ private class GLImageCache : GLCache
/// draw cached item
void drawItem(uint objectId, Rect dstrc, Rect srcrc, uint color, int options, Rect * clip, int rotationAngle) {
GLCacheItem* item = objectId in _map;
if (item)
(cast(GLImageCachePage)item.page).drawItem(*item, dstrc, srcrc, color, options, clip, rotationAngle);
if (item) {
auto page = (cast(GLImageCachePage)item.page);
page.drawItem(*item, dstrc, srcrc, color, options, clip, rotationAngle);
}
}
}