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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef SCI_GFX_GFX_RESMGR_H
#define SCI_GFX_GFX_RESMGR_H
// FIXME/TODO: The name "(Graphics) resource manager", and the associated
// filenames, are misleading. This should be renamed to "Graphics manager"
// or something like that.
#include "sci/gfx/gfx_resource.h"
#include "sci/scicore/resource.h"
#include "common/hashmap.h"
namespace Sci {
struct gfx_bitmap_font_t;
class ResourceManager;
enum gfx_resource_type_t {
GFX_RESOURCE_TYPE_VIEW = 0,
GFX_RESOURCE_TYPE_PIC,
GFX_RESOURCE_TYPE_FONT,
GFX_RESOURCE_TYPE_CURSOR,
GFX_RESOURCE_TYPE_PALETTE,
/* FIXME: Add PAL resource */
GFX_RESOURCE_TYPES_NR /* Number of resource types that are to be supported */
};
#define GFX_RESOURCE_TYPE_0 GFX_RESOURCE_TYPE_VIEW
#define GFXR_RES_ID(type, index) ((type) << 16 | (index))
#define GFXR_RES_TYPE(id) (id >> 16)
#define GFXR_RES_NR(id) (id & 0xffff)
struct gfx_resource_t {
int ID; /* Resource ID */
int lock_sequence_nr; /* See description of lock_counter in GfxResManager */
int mode; /* A mode type hash */
union {
gfx_pixmap_t *pointer;
gfxr_view_t *view;
gfx_bitmap_font_t *font;
gfxr_pic_t *pic;
} scaled_data;
union {
gfx_pixmap_t *pointer;
gfxr_view_t *view;
gfx_bitmap_font_t *font;
gfxr_pic_t *pic;
} unscaled_data;
};
struct gfx_options_t;
typedef Common::HashMap<int, gfx_resource_t *> IntResMap;
class GfxResManager {
public:
GfxResManager(int version, gfx_options_t *options, gfx_driver_t *driver, ResourceManager *resManager);
~GfxResManager();
/* Calculates a unique hash value for the specified options/type setup
** Parameters: (gfx_resource_type_t) type: The type the hash is to be generated for
** Returns : (int) A hash over the values of the options entries, covering entries iff
** they are relevant for the specified type
** Covering more entries than relevant may slow down the system when options are changed,
** while covering less may result in invalid cached data being used.
** Only positive values may be returned, as negative values are used internally by the generic
** resource manager code.
** Also, only the lower 20 bits are available to the interpreter.
** (Yes, this isn't really a "hash" in the traditional sense...)
*/
int getOptionsHash(gfx_resource_type_t type);
/* 'Tags' all resources for deletion
** Paramters: (void)
** Returns : (void)
** Tagged resources are untagged if they are referenced.
*/
void tagResources() { _tagLockCounter++; }
/* Retrieves an SCI0/SCI01 mouse cursor
** Parameters: (int) num: The cursor number
** Returns : (gfx_font_t *) The approprate cursor as a pixmap, or NULL on error
*/
gfx_pixmap_t *getCursor(int num);
/* Retrieves the static palette from the interpreter-specific code
** Parameters: (int *) colors_nr: Number of colors to use
** (int) nr: The palette to read
** Returns : (Palette *) static palette
** if a static palette must be used, NULL otherwise
*/
Palette *getPalette(int *colors_nr, int num = 999);
/* Retrieves a font
** Parameters: (int) nr: The font number
** (int) scaled: Whether the font should be font-scaled
** Returns : (gfx_font_t *) The appropriate font, or NULL on error
*/
gfx_bitmap_font_t *getFont(int num, bool scaled = false);
/* Retrieves a translated view cel
** Parameters:
** (int) nr: The view number
** (int *) loop: Pointer to a variable containing the loop number
** (int *) cel: Pointer to a variable containing the cel number
** (int) palette: The palette to use
** Returns : (gfx_view_t *) The relevant view, or NULL if nr was invalid
** loop and cel are given as pointers in order to allow the underlying variables to be
** modified if they are invalid (this is relevant for SCI version 0, where invalid
** loop and cel numbers have to be interpreted as 'maximum' or 'minimum' by the interpreter)
*/
gfxr_view_t *getView(int nr, int *loop, int *cel, int palette);
/* Retrieves a displayable (translated) pic resource
** Parameters: (int) nr: Number of the pic resource
** (int) maps: The maps to translate (ORred GFX_MASK_*)
** (int) flags: Interpreter-dependant pic flags
** (int) default_palette: The default palette to use for drawing (if applicable)
** (bool) scaled: Whether to return the scaled maps, or the unscaled
** ones (which may be identical) for some special operations.
** Returns : (gfxr_pic_t *) The appropriate pic resource with all maps as index (but not
** neccessarily translated) data.
*/
gfxr_pic_t *getPic(int num, int maps, int flags, int default_palette, bool scaled = false);
/* Retrieves a displayable (translated) pic resource written ontop of an existing pic
** Parameters: (int) old_nr: Number of the pic resource to write on
** (int) new_nr: Number of the pic resource that is to be added
** (int) flags: Interpreter-dependant pic flags
** (int) default_palette: The default palette to use for drawing (if applicable)
** (int) scaled: Whether to return the scaled maps, or the unscaled
** ones (which may be identical) for some special operations.
** Returns : (gfxr_pic_t *) The appropriate pic resource with all maps as index (but not
** neccessarily translated) data.
** This function invalidates the cached pic pointed to by old_nr in the cache. While subsequent
** addToPic() writes will still modify the 'invalidated' pic, gfxr_get_pic() operations will
** cause it to be removed from the cache and to be replaced by a clean version.
*/
gfxr_pic_t *addToPic(int old_nr, int new_nr, int flags, int old_default_palette, int default_palette);
/* Calculate a picture
** Parameters: (gfxr_pic_t *) scaled_pic: The pic structure that is to be written to
** (gfxr_pic_t *) unscaled_pic: The pic structure the unscaled pic is to be written to,
** or NULL if it isn't needed.
** (int) flags: Pic drawing flags (interpreter dependant)
** (int) default_palette: The default palette to use for pic drawing (interpreter dependant)
** (int) nr: pic resource number
** Returns : (int) GFX_ERROR if the resource could not be found, GFX_OK otherwise
*/
int calculatePic(gfxr_pic_t *scaled_pic, gfxr_pic_t *unscaled_pic, int flags, int default_palette, int nr);
/* Determines whether support for pointers with more than two colors is required
** Returns : (bool) false if no support for multi-colored pointers is required, true
** otherwise
*/
bool multicoloredPointers() { return _version > SCI_VERSION_1; }
/* Frees all resources currently allocated
** Parameter: (void)
** Returns : (void)
** This function is intended to be used primarily for debugging.
*/
void freeAllResources();
/* Frees all tagged resources.
** Parameters: (void)
** Returns : (void)
** Resources are tagged by calling gfx_tag_resources(), and untagged by calling the
** approprate dereferenciation function.
** Note that this function currently only affects view resources, as pic resources are
** treated differently, while font and cursor resources are relatively rare.
*/
void freeTaggedResources();
/* Frees a previously allocated resource manager, and all allocated resources.
** Parameters: (void)
** Return : (void)
*/
void freeResManager();
const PaletteEntry &getColor(int color) { return _staticPalette->getColor(color); }
// Set static palette and merge it into the global palette
void setStaticPalette(Palette *newPalette);
#if 0
void setPaletteIntensity(int16 from, int16 to, int16 intensity) {
Palette *pal = _staticPalette->getref();
for (uint16 i = 0; i < _driver->mode->palette->size(); i++) {
byte r = pal->getColor(i).r * intensity / 100;
byte g = pal->getColor(i).g * intensity / 100;
byte b = pal->getColor(i).b * intensity / 100;
pal->makeSystemColor(i, PaletteEntry(r, g, b));
}
pal->mergeInto(_driver->mode->palette);
_driver->install_palette(_driver, pal);
pal->unmerge();
pal->free();
}
#endif
int getColorCount() { return _staticPalette ? _staticPalette->size() : 0; }
private:
int _version;
gfx_options_t *_options;
gfx_driver_t *_driver;
Palette *_staticPalette;
int _lockCounter; /* Global lock counter; increased for each new resource allocated.
** The newly allocated resource will then be assigned the new value
** of the lock_counter, as will any resources referenced afterwards.
*/
int _tagLockCounter; /* lock counter value at tag time */
IntResMap _resourceMaps[GFX_RESOURCE_TYPES_NR];
ResourceManager *_resManager;
};
} // End of namespace Sci
#endif // SCI_GFX_GFX_RSMGR_H
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