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-rw-r--r--engines/dm/dm.cpp5
-rw-r--r--engines/dm/gfx.cpp98
-rw-r--r--engines/dm/gfx.h20
3 files changed, 103 insertions, 20 deletions
diff --git a/engines/dm/dm.cpp b/engines/dm/dm.cpp
index 53ed3de574..e30aaced2c 100644
--- a/engines/dm/dm.cpp
+++ b/engines/dm/dm.cpp
@@ -57,6 +57,7 @@ Common::Error DMEngine::run() {
_displayMan->loadGraphics();
_dungeonMan->loadDungeonFile();
+ /*
_displayMan->loadPalette(palCredits);
uint16 width = _displayMan->getImageWidth(1);
@@ -64,14 +65,16 @@ Common::Error DMEngine::run() {
byte *cleanByteImg0Data = new byte[width * height];
_displayMan->loadIntoBitmap(1, cleanByteImg0Data);
_displayMan->blitToScreen(cleanByteImg0Data, width, height, 0, 0);
+ delete[] cleanByteImg0Data;
+ */
while (true) {
+ _displayMan->drawDungeon();
_displayMan->updateScreen();
_system->delayMillis(10);
}
- delete[] cleanByteImg0Data;
return Common::kNoError;
}
diff --git a/engines/dm/gfx.cpp b/engines/dm/gfx.cpp
index 846f4bc931..52cc787596 100644
--- a/engines/dm/gfx.cpp
+++ b/engines/dm/gfx.cpp
@@ -5,7 +5,8 @@
#include "graphics/palette.h"
#include "common/endian.h"
-using namespace DM;
+
+namespace DM {
// this is for the Amiga version, later when we add support for more versions, this will have to be renamed
uint16 dmPalettes[10][16] = {
@@ -21,15 +22,36 @@ uint16 dmPalettes[10][16] = {
{0x000, 0x000, 0x000, 0x000, 0x0CC, 0x000, 0x000, 0x020, 0x400, 0x000, 0x000, 0x640, 0x000, 0x000, 0x004, 0x444}
};
+enum GraphicIndice {
+ FloorGraphIndice = 75,
+ CeilingGraphIndice = 76
+};
+
+struct Frame {
+ /* this might have to be removed, depends on if the game uses frames with multiple bitmaps
+ If so, then GraphIndice enum will have to be moved to be available from outside gfx.cpp*/
+ GraphicIndice graphIndice;
+ // srcWidth and srcHeight (present in the original sources) is redundant here, can be deduced from gaphicsIndice
+ uint16 srcFromX, srcToX, srcFromY, srcToY;
+ uint16 destX, destY;
+};
+
+Frame ceilingFrame = {CeilingGraphIndice, 0, 223, 0, 28, 0, 0};
+
+}
+
+using namespace DM;
DisplayMan::DisplayMan(DMEngine *dmEngine) :
_vm(dmEngine), _currPalette(palSwoosh), _screenWidth(0), _screenHeight(0),
- _vgaBuffer(0), _itemCount(0), _indexBytePos(NULL), _compressedData(NULL) {}
+ _vgaBuffer(NULL), _itemCount(0), _packedItemPos(NULL), _packedBitmaps(NULL),
+ _unpackedBitmaps(NULL) {}
DisplayMan::~DisplayMan() {
- delete[] _compressedData;
- delete[] _indexBytePos;
+ delete[] _packedBitmaps;
+ delete[] _packedItemPos;
delete[] _vgaBuffer;
+ delete[] _unpackedBitmaps;
}
void DisplayMan::setUpScreens(uint16 width, uint16 height) {
@@ -45,21 +67,47 @@ void DisplayMan::loadGraphics() {
f.open("graphics.dat");
_itemCount = f.readUint16BE();
- _indexBytePos = new uint32[_itemCount + 1];
- _indexBytePos[0] = 0;
+ _packedItemPos = new uint32[_itemCount + 1];
+ _packedItemPos[0] = 0;
for (uint16 i = 1; i < _itemCount + 1; ++i)
- _indexBytePos[i] = f.readUint16BE() + _indexBytePos[i - 1];
+ _packedItemPos[i] = f.readUint16BE() + _packedItemPos[i - 1];
- _compressedData = new uint8[_indexBytePos[_itemCount]];
+ _packedBitmaps = new uint8[_packedItemPos[_itemCount]];
f.seek(2 + _itemCount * 4);
- for (uint32 i = 0; i < _indexBytePos[_itemCount]; ++i)
- _compressedData[i] = f.readByte();
+ for (uint32 i = 0; i < _packedItemPos[_itemCount]; ++i)
+ _packedBitmaps[i] = f.readByte();
f.close();
+
+ unpackGraphics();
+}
+
+void DisplayMan::unpackGraphics() {
+ uint32 unpackedBitmapsSize = 0;
+ for (uint16 i = 0; i <= 20; ++i)
+ unpackedBitmapsSize += getImageWidth(i) * getImageHeight(i);
+ for (uint16 i = 22; i <= 532; ++i)
+ unpackedBitmapsSize += getImageWidth(i) * getImageHeight(i);
+ _unpackedBitmaps = new byte*[533];
+ // graphics items go from 0-20 and 22-532 inclusive, _unpackedItemPos 21 and 22 are there for indexing convenience
+ _unpackedBitmaps[0] = new byte[unpackedBitmapsSize];
+ loadIntoBitmap(0, _unpackedBitmaps[0]);
+ for (uint16 i = 1; i <= 20; ++i) {
+ _unpackedBitmaps[i] = _unpackedBitmaps[i - 1] + getImageWidth(i - 1) * getImageHeight(i - 1);
+ loadIntoBitmap(i, _unpackedBitmaps[i]);
+ }
+ _unpackedBitmaps[22] = _unpackedBitmaps[20] + getImageWidth(20) * getImageHeight(20);
+ for (uint16 i = 23; i < 533; ++i) {
+ _unpackedBitmaps[i] = _unpackedBitmaps[i - 1] + getImageWidth(i - 1) * getImageHeight(i - 1);
+ loadIntoBitmap(i, _unpackedBitmaps[i]);
+ }
}
void DisplayMan::loadPalette(dmPaletteEnum palette) {
+ if (_currPalette == palette)
+ return;
+
byte colorPalette[16 * 3];
for (int i = 0; i < 16; ++i) {
colorPalette[i * 3] = (dmPalettes[palette][i] >> 8) * (256 / 16);
@@ -67,12 +115,13 @@ void DisplayMan::loadPalette(dmPaletteEnum palette) {
colorPalette[i * 3 + 2] = dmPalettes[palette][i] * (256 / 16);
}
_vm->_system->getPaletteManager()->setPalette(colorPalette, 0, 16);
+ _currPalette = palette;
}
#define TOBE2(byte1, byte2) ((((uint16)(byte1)) << 8) | (uint16)(byte2))
void DisplayMan::loadIntoBitmap(uint16 index, byte *destBitmap) {
- uint8 *data = _compressedData + _indexBytePos[index];
+ uint8 *data = _packedBitmaps + _packedItemPos[index];
uint16 width = TOBE2(data[0], data[1]);
uint16 height = TOBE2(data[2], data[3]);
uint16 nextByteIndex = 4;
@@ -119,9 +168,18 @@ void DisplayMan::loadIntoBitmap(uint16 index, byte *destBitmap) {
}
}
-void DisplayMan::blitToScreen(byte *srcBitmap, uint16 srcWidth, uint16 srcHeight, uint16 destX, uint16 destY) {
- for (uint16 y = 0; y < srcHeight; ++y)
- memcpy(getCurrentVgaBuffer() + ((y + destY) * _screenWidth + destX), srcBitmap + y * srcWidth, srcWidth * sizeof(byte));
+void DisplayMan::blitToBitmap(byte *srcBitmap, uint16 srcFromX, uint16 srcToX, uint16 srcFromY, uint16 srcToY,
+ int16 srcWidth, uint16 destX, uint16 destY,
+ byte *destBitmap, uint16 destWidth) {
+ for (uint16 y = 0; y < srcToY - srcFromY; ++y)
+ memcpy(destBitmap + destWidth * (y + destY) + destX,
+ srcBitmap + srcWidth * (y + srcFromY) + srcFromX,
+ sizeof(byte) * (srcToX - srcFromX));
+}
+
+void DisplayMan::blitToScreen(byte *srcBitmap, uint16 srcFromX, uint16 srcToX, uint16 srcFromY, uint16 srcToY,
+ int16 srcWidth, uint16 destX, uint16 destY) {
+ blitToBitmap(srcBitmap, srcFromX, srcToX, srcFromY, srcToY, srcWidth, destX, destY, getCurrentVgaBuffer(), _screenWidth);
}
void DisplayMan::updateScreen() {
@@ -134,12 +192,20 @@ byte *DisplayMan::getCurrentVgaBuffer() {
}
uint16 DisplayMan::getImageWidth(uint16 index) {
- uint8 *data = _compressedData + _indexBytePos[index];
+ byte *data = _packedBitmaps + _packedItemPos[index];
return TOBE2(data[0], data[1]);
}
uint16 DisplayMan::getImageHeight(uint16 index) {
- uint8 *data = _compressedData + _indexBytePos[index];
+ uint8 *data = _packedBitmaps + _packedItemPos[index];
return TOBE2(data[2], data[3]);
}
+void DisplayMan::drawFrame(Frame &f) {
+ blitToScreen(_unpackedBitmaps[f.graphIndice], f.srcFromX, f.srcToX, f.srcFromY, f.srcToY, getImageWidth(f.graphIndice), f.destX, f.destY);
+}
+
+void DisplayMan::drawDungeon() {
+ loadPalette(palDungeonView0);
+ drawFrame(ceilingFrame);
+} \ No newline at end of file
diff --git a/engines/dm/gfx.h b/engines/dm/gfx.h
index acdabfa77c..f52381e3a4 100644
--- a/engines/dm/gfx.h
+++ b/engines/dm/gfx.h
@@ -6,6 +6,8 @@
namespace DM {
+struct Frame;
+
enum dmPaletteEnum {
palSwoosh = 0,
palMousePointer = 1,
@@ -27,22 +29,34 @@ class DisplayMan {
uint16 _screenHeight;
byte *_vgaBuffer;
uint16 _itemCount;
- uint32 *_indexBytePos;
- uint8 *_compressedData;
+ // TODO: will probably be redundant
+ uint32 *_packedItemPos;
+ // TODO: will probably be reundant
+ byte *_packedBitmaps; // TODO: this doesn't not contaion graphics exclusively, will have to be moved
DisplayMan(const DisplayMan &other); // no implementation on purpose
void operator=(const DisplayMan &rhs); // no implementation on purpose
+
+
+ byte **_unpackedBitmaps;
+ void unpackGraphics();
+ void drawFrame(Frame &f);
public:
DisplayMan(DMEngine *dmEngine);
~DisplayMan();
void setUpScreens(uint16 width, uint16 height);
void loadGraphics();
void loadPalette(dmPaletteEnum palette);
+ // TODO: will probably be redundant with public visibility
void loadIntoBitmap(uint16 index, byte *destBitmap);
uint16 getImageWidth(uint16 index);
uint16 getImageHeight(uint16 index);
- void blitToScreen(byte *srcBitmap, uint16 srcWidth, uint16 srcHeight, uint16 destX, uint16 destY);
+ void DisplayMan::blitToBitmap(byte *srcBitmap, uint16 srcFromX, uint16 srcToX, uint16 srcFromY, uint16 srcToY,
+ int16 srcWidth, uint16 destX, uint16 destY, byte *destBitmap, uint16 destWidth);
+ inline void DisplayMan::blitToScreen(byte *srcBitmap, uint16 srcFromX, uint16 srcToX, uint16 srcFromY, uint16 srcToY,
+ int16 srcWidth, uint16 destX, uint16 destY);
byte *getCurrentVgaBuffer();
void updateScreen();
+ void drawDungeon();
};
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 09:44:51 +0000