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Diffstat (limited to 'engines/mohawk/graphics.cpp')
-rw-r--r--engines/mohawk/graphics.cpp104
1 files changed, 59 insertions, 45 deletions
diff --git a/engines/mohawk/graphics.cpp b/engines/mohawk/graphics.cpp
index 64968723bd..46f2d3c0d7 100644
--- a/engines/mohawk/graphics.cpp
+++ b/engines/mohawk/graphics.cpp
@@ -235,8 +235,8 @@ MystGraphics::MystGraphics(MohawkEngine_Myst* vm) : GraphicsManager(), _vm(vm) {
_pictureFile.entries = NULL;
// Initialize our buffer
- _mainScreen = new Graphics::Surface();
- _mainScreen->create(_vm->_system->getWidth(), _vm->_system->getHeight(), _pixelFormat.bytesPerPixel);
+ _backBuffer = new Graphics::Surface();
+ _backBuffer->create(_vm->_system->getWidth(), _vm->_system->getHeight(), _pixelFormat.bytesPerPixel);
}
MystGraphics::~MystGraphics() {
@@ -245,8 +245,8 @@ MystGraphics::~MystGraphics() {
delete _pictDecoder;
delete[] _pictureFile.entries;
- _mainScreen->free();
- delete _mainScreen;
+ _backBuffer->free();
+ delete _backBuffer;
}
static const char* picFileNames[] = {
@@ -371,36 +371,50 @@ void MystGraphics::copyImageSectionToScreen(uint16 image, Common::Rect src, Comm
// Convert from bitmap coordinates to surface coordinates
uint16 top = surface->h - src.top - height;
- for (uint16 i = 0; i < height; i++)
- memcpy(_mainScreen->getBasePtr(dest.left, i + dest.top), surface->getBasePtr(src.left, top + i), width * surface->bytesPerPixel);
+ _vm->_system->copyRectToScreen((byte *)surface->getBasePtr(src.left, top), surface->pitch, dest.left, dest.top, width, height);
+}
+
+void MystGraphics::copyImageSectionToBackBuffer(uint16 image, Common::Rect src, Common::Rect dest) {
+ // Clip the destination rect to the screen
+ if (dest.right > _vm->_system->getWidth() || dest.bottom > _vm->_system->getHeight())
+ dest.debugPrint(4, "Clipping destination rect to the screen:");
+
+ dest.right = CLIP<int>(dest.right, 0, _vm->_system->getWidth());
+ dest.bottom = CLIP<int>(dest.bottom, 0, _vm->_system->getHeight());
+
+ Graphics::Surface *surface = findImage(image)->getSurface();
+
+ debug(3, "Image Blit:");
+ debug(3, "src.x: %d", src.left);
+ debug(3, "src.y: %d", src.top);
+ debug(3, "dest.x: %d", dest.left);
+ debug(3, "dest.y: %d", dest.top);
+ debug(3, "width: %d", src.width());
+ debug(3, "height: %d", src.height());
+
+ uint16 width = MIN<int>(surface->w, dest.width());
+ uint16 height = MIN<int>(surface->h, dest.height());
+
+ // Convert from bitmap coordinates to surface coordinates
+ uint16 top = surface->h - src.top - height;
- // Add to the list of dirty rects
- _dirtyRects.push_back(dest);
+ for (uint16 i = 0; i < height; i++)
+ memcpy(_backBuffer->getBasePtr(dest.left, i + dest.top), surface->getBasePtr(src.left, top + i), width * surface->bytesPerPixel);
}
void MystGraphics::copyImageToScreen(uint16 image, Common::Rect dest) {
copyImageSectionToScreen(image, Common::Rect(0, 0, 544, 333), dest);
}
-void MystGraphics::updateScreen() {
- // Only update the screen if there have been changes since last frame
- if (!_dirtyRects.empty()) {
-
- // Copy any modified area
- for (uint i = 0; i < _dirtyRects.size(); i++) {
- Common::Rect &r = _dirtyRects[i];
- _vm->_system->copyRectToScreen((byte *)_mainScreen->getBasePtr(r.left, r.top), _mainScreen->pitch, r.left, r.top, r.width(), r.height());
- }
+void MystGraphics::copyImageToBackBuffer(uint16 image, Common::Rect dest) {
+ copyImageSectionToBackBuffer(image, Common::Rect(0, 0, 544, 333), dest);
+}
- _vm->_system->updateScreen();
- _dirtyRects.clear();
- }
+void MystGraphics::copyBackBufferToScreen(const Common::Rect &r) {
+ _vm->_system->copyRectToScreen((byte *)_backBuffer->getBasePtr(r.left, r.top), _backBuffer->pitch, r.left, r.top, r.width(), r.height());
}
void MystGraphics::runTransition(uint16 type, Common::Rect rect, uint16 steps, uint16 delay) {
- // Bypass dirty rects for animated updates
- _dirtyRects.clear();
-
switch (type) {
case 0: {
debugC(kDebugScript, "Left to Right");
@@ -413,15 +427,15 @@ void MystGraphics::runTransition(uint16 type, Common::Rect rect, uint16 steps, u
_vm->_system->delayMillis(delay);
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
if (area.right < rect.right) {
area.left = area.right;
area.right = rect.right;
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
}
break;
@@ -436,15 +450,15 @@ void MystGraphics::runTransition(uint16 type, Common::Rect rect, uint16 steps, u
_vm->_system->delayMillis(delay);
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
if (area.left > rect.left) {
area.right = area.left;
area.left = rect.left;
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
}
break;
@@ -459,15 +473,15 @@ void MystGraphics::runTransition(uint16 type, Common::Rect rect, uint16 steps, u
_vm->_system->delayMillis(delay);
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
if (area.bottom < rect.bottom) {
area.top = area.bottom;
area.bottom = rect.bottom;
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
}
break;
@@ -482,15 +496,15 @@ void MystGraphics::runTransition(uint16 type, Common::Rect rect, uint16 steps, u
_vm->_system->delayMillis(delay);
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
if (area.top > rect.top) {
area.bottom = area.top;
area.top = rect.top;
- _dirtyRects.push_back(area);
- updateScreen();
+ copyBackBufferToScreen(area);
+ _vm->_system->updateScreen();
}
}
break;
@@ -498,8 +512,8 @@ void MystGraphics::runTransition(uint16 type, Common::Rect rect, uint16 steps, u
warning("Unknown Update Direction");
//TODO: Replace minimal implementation
- _dirtyRects.push_back(rect);
- updateScreen();
+ copyBackBufferToScreen(rect);
+ _vm->_system->updateScreen();
break;
}
}
@@ -510,15 +524,15 @@ void MystGraphics::drawRect(Common::Rect rect, RectState state) {
return;
if (state == kRectEnabled)
- _mainScreen->frameRect(rect, _pixelFormat.RGBToColor(0, 255, 0));
+ _backBuffer->frameRect(rect, _pixelFormat.RGBToColor(0, 255, 0));
else if (state == kRectUnreachable)
- _mainScreen->frameRect(rect, _pixelFormat.RGBToColor(0, 0, 255));
+ _backBuffer->frameRect(rect, _pixelFormat.RGBToColor(0, 0, 255));
else
- _mainScreen->frameRect(rect, _pixelFormat.RGBToColor(255, 0, 0));
+ _backBuffer->frameRect(rect, _pixelFormat.RGBToColor(255, 0, 0));
}
void MystGraphics::drawLine(const Common::Point &p1, const Common::Point &p2, uint32 color) {
- _mainScreen->drawLine(p1.x, p1.y, p2.x, p2.y, color);
+ _backBuffer->drawLine(p1.x, p1.y, p2.x, p2.y, color);
}
RivenGraphics::RivenGraphics(MohawkEngine_Riven* vm) : GraphicsManager(), _vm(vm) {
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-19 01:29:14 +0000