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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.
*
* $URL$
* $Id$
*
*/
// Resource manager core part
// 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/sci.h"
#include "sci/gfx/gfx_resource.h"
#include "sci/gfx/gfx_tools.h"
#include "sci/gfx/gfx_driver.h"
#include "sci/gfx/gfx_resmgr.h"
#include "sci/gfx/gfx_state_internal.h"
#include "sci/gfx/font.h"
#include "common/system.h"
namespace Sci {
// Invalid hash mode: Used to invalidate modified pics
#define MODE_INVALID -1
struct param_struct {
int args[4];
GfxDriver *driver;
};
GfxResManager::GfxResManager(gfx_options_t *options, GfxDriver *driver, ResourceManager *resManager) :
_options(options), _driver(driver), _resManager(resManager),
_lockCounter(0), _tagLockCounter(0), _staticPalette(0) {
gfxr_init_static_palette();
_portBounds = Common::Rect(0, 10, 320, 200); // default value, with a titlebar of 10px
_version = resManager->sciVersion();
// Workaround for QFG1 VGA (has SCI 1.1 view data with SCI 1 compression)
if (_version == SCI_VERSION_1 && !strcmp(((SciEngine*)g_engine)->getGameID(), "qfg1")) {
_version = SCI_VERSION_1_1;
}
if (!_resManager->isVGA()) {
_staticPalette = gfx_sci0_pic_colors->getref();
} else if (_version == SCI_VERSION_1_1) {
debugC(2, kDebugLevelGraphics, "Palettes are not yet supported in this SCI version\n");
#ifdef ENABLE_SCI32
} else if (_version == SCI_VERSION_32) {
debugC(2, kDebugLevelGraphics, "Palettes are not yet supported in this SCI version\n");
#endif
} else {
Resource *res = resManager->findResource(ResourceId(kResourceTypePalette, 999), 0);
if (res && res->data)
_staticPalette = gfxr_read_pal1(res->id.number, res->data, res->size);
}
}
GfxResManager::~GfxResManager() {
_staticPalette->free();
_staticPalette = 0;
}
int GfxResManager::calculatePic(gfxr_pic_t *scaled_pic, gfxr_pic_t *unscaled_pic, int flags, int default_palette, int nr) {
Resource *res = _resManager->findResource(ResourceId(kResourceTypePic, nr), 0);
int need_unscaled = unscaled_pic != NULL;
gfxr_pic0_params_t style, basic_style;
basic_style.line_mode = GFX_LINE_MODE_CORRECT;
basic_style.brush_mode = GFX_BRUSH_MODE_SCALED;
#ifdef CUSTOM_GRAPHICS_OPTIONS
style.line_mode = _options->pic0_line_mode;
style.brush_mode = _options->pic0_brush_mode;
#else
style.line_mode = GFX_LINE_MODE_CORRECT;
style.brush_mode = GFX_BRUSH_MODE_RANDOM_ELLIPSES;
#endif
if (!res || !res->data)
return GFX_ERROR;
if (need_unscaled) {
if (_version == SCI_VERSION_1_1)
gfxr_draw_pic11(unscaled_pic, flags, default_palette, res->size, res->data, &basic_style, res->id.number, _staticPalette, _portBounds);
else
gfxr_draw_pic01(unscaled_pic, flags, default_palette, res->size, res->data, &basic_style, res->id.number, _resManager->isVGA(), _staticPalette, _portBounds);
}
if (scaled_pic && scaled_pic->undithered_buffer)
memcpy(scaled_pic->visual_map->index_data, scaled_pic->undithered_buffer, scaled_pic->undithered_buffer_size);
if (_version == SCI_VERSION_1_1)
gfxr_draw_pic11(scaled_pic, flags, default_palette, res->size, res->data, &style, res->id.number, _staticPalette, _portBounds);
else
gfxr_draw_pic01(scaled_pic, flags, default_palette, res->size, res->data, &style, res->id.number, _resManager->isVGA(), _staticPalette, _portBounds);
if (!_resManager->isVGA()) {
if (need_unscaled)
gfxr_remove_artifacts_pic0(scaled_pic, unscaled_pic);
if (!scaled_pic->undithered_buffer)
scaled_pic->undithered_buffer = malloc(scaled_pic->undithered_buffer_size);
memcpy(scaled_pic->undithered_buffer, scaled_pic->visual_map->index_data, scaled_pic->undithered_buffer_size);
#ifdef CUSTOM_GRAPHICS_OPTIONS
gfxr_dither_pic0(scaled_pic, _options->pic0_dither_mode, _options->pic0_dither_pattern);
#else
gfxr_dither_pic0(scaled_pic, GFXR_DITHER_MODE_D256, GFXR_DITHER_PATTERN_SCALED);
#endif
}
// Mark default palettes
if (scaled_pic)
scaled_pic->visual_map->loop = default_palette;
if (unscaled_pic)
unscaled_pic->visual_map->loop = default_palette;
return GFX_OK;
}
int GfxResManager::getOptionsHash(gfx_resource_type_t type) {
switch (type) {
case GFX_RESOURCE_TYPE_VIEW:
// This should never happen
error("getOptionsHash called on a VIEW resource");
case GFX_RESOURCE_TYPE_PIC:
#ifdef CUSTOM_GRAPHICS_OPTIONS
if (_resManager->isVGA())
// NOTE: here, it is assumed that the upper port bound is always 10, but this doesn't seem to matter for the
// generated options hash anyway
return 10;
else
return (_options->pic0_unscaled) ? 0x10000 : (_options->pic0_dither_mode << 12)
| (_options->pic0_dither_pattern << 8) | (_options->pic0_brush_mode << 4)
| (_options->pic0_line_mode);
#else
if (_resManager->isVGA())
return 10;
else
return 0x10000 | (GFXR_DITHER_PATTERN_SCALED << 8) | (GFX_BRUSH_MODE_RANDOM_ELLIPSES << 4) | GFX_LINE_MODE_CORRECT;
#endif
case GFX_RESOURCE_TYPE_FONT:
case GFX_RESOURCE_TYPE_CURSOR:
return 0;
case GFX_RESOURCE_TYPES_NR:
default:
error("Invalid resource type: %d", type);
return -1;
}
}
#define FREEALL(freecmd, type) \
if (resource->scaled_data.type) \
freecmd(resource->scaled_data.type); \
resource->scaled_data.type = NULL; \
if (resource->unscaled_data.type) \
freecmd(resource->unscaled_data.type); \
resource->unscaled_data.type = NULL;
void gfxr_free_resource(gfx_resource_t *resource, int type) {
if (!resource)
return;
switch (type) {
case GFX_RESOURCE_TYPE_VIEW:
FREEALL(gfxr_free_view, view);
break;
case GFX_RESOURCE_TYPE_PIC:
FREEALL(gfxr_free_pic, pic);
break;
case GFX_RESOURCE_TYPE_FONT:
FREEALL(gfxr_free_font, font);
break;
case GFX_RESOURCE_TYPE_CURSOR:
FREEALL(gfx_free_pixmap, pointer);
break;
default:
warning("[GFX] Attempt to free invalid resource type %d", type);
}
free(resource);
}
void GfxResManager::freeAllResources() {
for (int type = 0; type < GFX_RESOURCE_TYPES_NR; ++type) {
for (IntResMap::iterator iter = _resourceMaps[type].begin(); iter != _resourceMaps[type].end(); ++iter) {
gfxr_free_resource(iter->_value, type);
iter->_value = 0;
}
}
}
void GfxResManager::freeResManager() {
freeAllResources();
_lockCounter = _tagLockCounter = 0;
}
void GfxResManager::freeTaggedResources() {
// Current heuristics: free tagged views and old pics
IntResMap::iterator iter;
int type;
const int tmp = _tagLockCounter;
type = GFX_RESOURCE_TYPE_VIEW;
for (iter = _resourceMaps[type].begin(); iter != _resourceMaps[type].end(); ++iter) {
gfx_resource_t *resource = iter->_value;
if (resource) {
if (resource->lock_sequence_nr < tmp) {
gfxr_free_resource(resource, type);
iter->_value = 0;
} else {
resource->lock_sequence_nr = 0;
}
}
}
type = GFX_RESOURCE_TYPE_PIC;
for (iter = _resourceMaps[type].begin(); iter != _resourceMaps[type].end(); ++iter) {
gfx_resource_t *resource = iter->_value;
if (resource) {
if (resource->lock_sequence_nr < 0) {
gfxr_free_resource(resource, type);
iter->_value = 0;
} else {
resource->lock_sequence_nr--;
}
}
}
_tagLockCounter = 0;
}
void GfxResManager::setStaticPalette(Palette *newPalette)
{
if (_staticPalette)
_staticPalette->free();
_staticPalette = newPalette;
_staticPalette->name = "static palette";
_staticPalette->mergeInto(_driver->getMode()->palette);
}
#if 0
// FIXME: the options for GFX_MASK_VISUAL are actually unused
#define XLATE_AS_APPROPRIATE(key, entry) \
if (maps & key) { \
if (res->unscaled_data.pic&& (force || !res->unscaled_data.pic->entry->data)) { \
if (key == GFX_MASK_VISUAL) \
gfx_get_res_config(options, res->unscaled_data.pic->entry); \
gfx_xlate_pixmap(res->unscaled_data.pic->entry, mode, filter); \
} if (scaled && res->scaled_data.pic && (force || !res->scaled_data.pic->entry->data)) { \
if (key == GFX_MASK_VISUAL) \
gfx_get_res_config(options, res->scaled_data.pic->entry); \
gfx_xlate_pixmap(res->scaled_data.pic->entry, mode, filter); \
} \
}
#endif
#define XLATE_AS_APPROPRIATE(key, entry) \
if (maps & key) { \
if (res->unscaled_data.pic&& (force || !res->unscaled_data.pic->entry->data)) { \
gfx_xlate_pixmap(res->unscaled_data.pic->entry, mode, filter); \
} if (scaled && res->scaled_data.pic && (force || !res->scaled_data.pic->entry->data)) { \
gfx_xlate_pixmap(res->scaled_data.pic->entry, mode, filter); \
} \
}
static gfxr_pic_t *gfxr_pic_xlate_common(gfx_resource_t *res, int maps, int scaled, int force, gfx_mode_t *mode,
gfx_xlate_filter_t filter, gfx_options_t *options) {
XLATE_AS_APPROPRIATE(GFX_MASK_VISUAL, visual_map);
XLATE_AS_APPROPRIATE(GFX_MASK_PRIORITY, priority_map);
XLATE_AS_APPROPRIATE(GFX_MASK_CONTROL, control_map);
return scaled ? res->scaled_data.pic : res->unscaled_data.pic;
}
#undef XLATE_AS_APPROPRIATE
/* unscaled color index mode: Used in addition to a scaled mode
** to render the pic resource twice.
*/
// FIXME: this is an ugly hack. Perhaps we could do it some other way?
gfx_mode_t mode_1x1_color_index = { /* Fake 1x1 mode */
/* xfact */ 1, /* yfact */ 1,
/* xsize */ 1, /* ysize */ 1,
/* bytespp */ 1,
/* flags */ 0,
/* palette */ NULL,
/* color masks */ 0, 0, 0, 0,
/* color shifts */ 0, 0, 0, 0
};
gfxr_pic_t *GfxResManager::getPic(int num, int maps, int flags, int default_palette, bool scaled) {
gfxr_pic_t *npic = NULL;
IntResMap &resMap = _resourceMaps[GFX_RESOURCE_TYPE_PIC];
gfx_resource_t *res = NULL;
int hash = getOptionsHash(GFX_RESOURCE_TYPE_PIC);
int need_unscaled = (_driver->getMode()->xfact != 1 || _driver->getMode()->yfact != 1);
hash |= (flags << 20) | ((default_palette & 0x7) << 28);
res = resMap.contains(num) ? resMap[num] : NULL;
if (!res || res->mode != hash) {
gfxr_pic_t *pic = NULL;
gfxr_pic_t *unscaled_pic = NULL;
#ifdef CUSTOM_GRAPHICS_OPTIONS
if (_options->pic0_unscaled) {
need_unscaled = 0;
pic = gfxr_init_pic(&mode_1x1_color_index, GFXR_RES_ID(GFX_RESOURCE_TYPE_PIC, num), _resManager->isVGA());
} else
pic = gfxr_init_pic(_driver->getMode(), GFXR_RES_ID(GFX_RESOURCE_TYPE_PIC, num), _resManager->isVGA());
#else
need_unscaled = 0;
pic = gfxr_init_pic(_driver->getMode(), GFXR_RES_ID(GFX_RESOURCE_TYPE_PIC, num), _resManager->isVGA());
#endif
if (!pic) {
error("Failed to allocate scaled pic");
return NULL;
}
gfxr_clear_pic0(pic, SCI_TITLEBAR_SIZE);
if (need_unscaled) {
unscaled_pic = gfxr_init_pic(&mode_1x1_color_index, GFXR_RES_ID(GFX_RESOURCE_TYPE_PIC, num), _resManager->isVGA());
if (!unscaled_pic) {
error("Failed to allocate unscaled pic");
return NULL;
}
gfxr_clear_pic0(pic, SCI_TITLEBAR_SIZE);
}
if (calculatePic(pic, unscaled_pic, flags, default_palette, num)) {
gfxr_free_pic(pic);
if (unscaled_pic)
gfxr_free_pic(unscaled_pic);
return NULL;
}
if (!res) {
res = (gfx_resource_t *)malloc(sizeof(gfx_resource_t));
res->ID = GFXR_RES_ID(GFX_RESOURCE_TYPE_PIC, num);
#ifdef CUSTOM_GRAPHICS_OPTIONS
res->lock_sequence_nr = _options->buffer_pics_nr;
#else
res->lock_sequence_nr = 0;
#endif
resMap[num] = res;
} else {
gfxr_free_pic(res->scaled_data.pic);
if (res->unscaled_data.pic)
gfxr_free_pic(res->unscaled_data.pic);
}
res->mode = hash;
res->scaled_data.pic = pic;
res->unscaled_data.pic = unscaled_pic;
} else {
#ifdef CUSTOM_GRAPHICS_OPTIONS
res->lock_sequence_nr = _options->buffer_pics_nr; // Update lock counter
#else
res->lock_sequence_nr = 0;
#endif
}
#ifdef CUSTOM_GRAPHICS_OPTIONS
npic = gfxr_pic_xlate_common(res, maps, scaled || _options->pic0_unscaled, 0, _driver->getMode(),
_options->pic_xlate_filter, _options);
#else
npic = gfxr_pic_xlate_common(res, maps, 1, 0, _driver->getMode(),
GFX_XLATE_FILTER_NONE, _options);
#endif
return npic;
}
static void set_pic_id(gfx_resource_t *res, int id) {
if (res->scaled_data.pic) {
gfxr_pic_t *pic = res->scaled_data.pic;
pic->control_map->ID = id;
pic->priority_map->ID = id;
pic->visual_map->ID = id;
}
if (res->unscaled_data.pic) {
gfxr_pic_t *pic = res->unscaled_data.pic;
pic->control_map->ID = id;
pic->priority_map->ID = id;
pic->visual_map->ID = id;
}
}
static int get_pic_id(gfx_resource_t *res) {
if (res->scaled_data.pic)
return res->scaled_data.pic->visual_map->ID;
else
return res->unscaled_data.pic->visual_map->ID;
}
static void _gfxr_unscale_pixmap_index_data(gfx_pixmap_t *pxm, gfx_mode_t *mode) {
int xmod = mode->xfact; // Step size horizontally
int ymod = pxm->index_width * mode->yfact; // Vertical step size
int maxpos = pxm->index_width * pxm->index_height;
int pos;
byte *dest = pxm->index_data;
if (!(pxm->flags & GFX_PIXMAP_FLAG_SCALED_INDEX))
return; // It's not scaled!
for (pos = 0; pos < maxpos; pos += ymod) {
int c;
for (c = 0; c < pxm->index_width; c += xmod)
*dest++ = pxm->index_data[pos + c];
// No overwrite since line and offset readers move much faster (proof by in-duction, trivial
// and left to the reader)
}
pxm->index_width /= mode->xfact;
pxm->index_height /= mode->yfact;
pxm->flags &= ~GFX_PIXMAP_FLAG_SCALED_INDEX;
}
gfxr_pic_t *GfxResManager::addToPic(int old_nr, int new_nr, int flags, int old_default_palette, int default_palette) {
IntResMap &resMap = _resourceMaps[GFX_RESOURCE_TYPE_PIC];
gfxr_pic_t *pic = NULL;
gfx_resource_t *res = NULL;
int hash = getOptionsHash(GFX_RESOURCE_TYPE_PIC);
#ifdef CUSTOM_GRAPHICS_OPTIONS
int need_unscaled = !(_options->pic0_unscaled) && (_driver->getMode()->xfact != 1 || _driver->getMode()->yfact != 1);
#else
int need_unscaled = 1;
#endif
res = resMap.contains(old_nr) ? resMap[old_nr] : NULL;
if (!res || (res->mode != MODE_INVALID && res->mode != hash)) {
getPic(old_nr, 0, flags, old_default_palette, 1);
res = resMap.contains(old_nr) ? resMap[old_nr] : NULL;
if (!res) {
warning("[GFX] Attempt to add pic %d to non-existing pic %d", new_nr, old_nr);
return NULL;
}
}
#ifdef CUSTOM_GRAPHICS_OPTIONS
if (_options->pic0_unscaled) // Unscale priority map, if we scaled it earlier
#endif
_gfxr_unscale_pixmap_index_data(res->scaled_data.pic->priority_map, _driver->getMode());
// The following two operations are needed when returning scaled maps (which is always the case here)
#ifdef CUSTOM_GRAPHICS_OPTIONS
res->lock_sequence_nr = _options->buffer_pics_nr;
#else
res->lock_sequence_nr = 0;
#endif
calculatePic(res->scaled_data.pic, need_unscaled ? res->unscaled_data.pic : NULL,
flags | DRAWPIC01_FLAG_OVERLAID_PIC, default_palette, new_nr);
res->mode = MODE_INVALID; // Invalidate
#ifdef CUSTOM_GRAPHICS_OPTIONS
if (_options->pic0_unscaled) // Scale priority map again, if needed
#endif
res->scaled_data.pic->priority_map = gfx_pixmap_scale_index_data(res->scaled_data.pic->priority_map, _driver->getMode());
{
int old_ID = get_pic_id(res);
set_pic_id(res, GFXR_RES_ID(GFX_RESOURCE_TYPE_PIC, new_nr)); // To ensure that our graphical translation options work properly
#ifdef CUSTOM_GRAPHICS_OPTIONS
pic = gfxr_pic_xlate_common(res, GFX_MASK_VISUAL, 1, 1, _driver->getMode(), _options->pic_xlate_filter, _options);
#else
pic = gfxr_pic_xlate_common(res, GFX_MASK_VISUAL, 1, 1, _driver->getMode(), GFX_XLATE_FILTER_NONE, _options);
#endif
set_pic_id(res, old_ID);
}
return pic;
}
gfxr_view_t *GfxResManager::getView(int nr, int *loop, int *cel, int palette) {
IntResMap &resMap = _resourceMaps[GFX_RESOURCE_TYPE_VIEW];
gfx_resource_t *res = NULL;
int hash = palette;
gfxr_view_t *view = NULL;
gfxr_loop_t *loop_data = NULL;
gfx_pixmap_t *cel_data = NULL;
res = resMap.contains(nr) ? resMap[nr] : NULL;
if (!res || res->mode != hash) {
Resource *viewRes = _resManager->findResource(ResourceId(kResourceTypeView, nr), 0);
if (!viewRes || !viewRes->data)
return NULL;
int resid = GFXR_RES_ID(GFX_RESOURCE_TYPE_VIEW, nr);
if (!_resManager->isVGA()) {
int pal = (_version == SCI_VERSION_0) ? -1 : palette;
view = getEGAView(resid, viewRes->data, viewRes->size, pal);
} else {
if (_version < SCI_VERSION_1_1)
view = getVGAView(resid, viewRes->data, viewRes->size, _staticPalette, false);
else
view = getVGAView(resid, viewRes->data, viewRes->size, 0, true);
if (!view->palette) {
view->palette = new Palette(_staticPalette->size());
view->palette->name = "interpreter_get_view";
}
// Palettize view
for (unsigned i = 0; i < MIN(view->palette->size(), _staticPalette->size()); i++) {
const PaletteEntry& vc = view->palette->getColor(i);
if (vc.r == 0 && vc.g == 0 && vc.b == 0) {
const PaletteEntry& sc = _staticPalette->getColor(i);
view->palette->setColor(i, sc.r, sc.g, sc.b);
}
}
}
if (!res) {
res = (gfx_resource_t *)malloc(sizeof(gfx_resource_t));
res->scaled_data.view = NULL;
res->ID = GFXR_RES_ID(GFX_RESOURCE_TYPE_VIEW, nr);
res->lock_sequence_nr = _tagLockCounter;
res->mode = hash;
resMap[nr] = res;
} else {
gfxr_free_view(res->unscaled_data.view);
}
res->mode = hash;
res->unscaled_data.view = view;
} else {
res->lock_sequence_nr = _tagLockCounter; // Update lock counter
view = res->unscaled_data.view;
}
*loop = CLIP<int>(*loop, 0, view->loops_nr - 1);
if (*loop < 0) {
warning("[GFX] View %d has no loops", nr);
return NULL;
}
loop_data = view->loops + (*loop);
if (loop_data == NULL) {
warning("[GFX] Trying to load invalid loop %d of view %d", *loop, nr);
return NULL;
}
*cel = CLIP<int>(*cel, 0, loop_data->cels_nr - 1);
if (*cel < 0) {
warning("[GFX] View %d loop %d has no cels", nr, *loop);
return NULL;
}
cel_data = loop_data->cels[*cel];
if (loop_data == NULL) {
warning("[GFX] Trying to load invalid view/loop/cel %d/%d/%d", nr, *loop, *cel);
return NULL;
}
if (!cel_data->data) {
if (!cel_data->palette)
cel_data->palette = view->palette->getref();
#ifdef CUSTOM_GRAPHICS_OPTIONS
gfx_get_res_config(_options, cel_data);
gfx_xlate_pixmap(cel_data, _driver->getMode(), _options->view_xlate_filter);
#else
gfx_xlate_pixmap(cel_data, _driver->getMode(), GFX_XLATE_FILTER_NONE);
#endif
}
return view;
}
gfx_bitmap_font_t *GfxResManager::getFont(int num, bool scaled) {
IntResMap &resMap = _resourceMaps[GFX_RESOURCE_TYPE_FONT];
gfx_resource_t *res = NULL;
int hash = getOptionsHash(GFX_RESOURCE_TYPE_FONT);
// Workaround: LSL1VGA mixes its own internal fonts with the global
// SCI ones, so we translate them here, by removing their extra bits
if (!resMap.contains(num) && !_resManager->testResource(ResourceId(kResourceTypeFont, num)))
num = num & 0x7ff;
res = resMap.contains(num) ? resMap[num] : NULL;
if (!res || res->mode != hash) {
Resource *fontRes = _resManager->findResource(ResourceId(kResourceTypeFont, num), 0);
if (!fontRes || !fontRes->data)
return NULL;
gfx_bitmap_font_t *font = gfxr_read_font(fontRes->id.number, fontRes->data, fontRes->size);
if (!res) {
res = (gfx_resource_t *)malloc(sizeof(gfx_resource_t));
res->scaled_data.font = NULL;
res->ID = GFXR_RES_ID(GFX_RESOURCE_TYPE_FONT, num);
res->lock_sequence_nr = _tagLockCounter;
res->mode = hash;
resMap[num] = res;
} else {
gfxr_free_font(res->unscaled_data.font);
}
res->unscaled_data.font = font;
return font;
} else {
res->lock_sequence_nr = _tagLockCounter; // Update lock counter
if (res->unscaled_data.pointer)
return res->unscaled_data.font;
else
return res->scaled_data.font;
}
}
gfx_pixmap_t *GfxResManager::getCursor(int num) {
IntResMap &resMap = _resourceMaps[GFX_RESOURCE_TYPE_CURSOR];
gfx_resource_t *res = NULL;
int hash = getOptionsHash(GFX_RESOURCE_TYPE_CURSOR);
res = resMap.contains(num) ? resMap[num] : NULL;
if (!res || res->mode != hash) {
Resource *cursorRes = _resManager->findResource(ResourceId(kResourceTypeCursor, num), 0);
if (!cursorRes || !cursorRes->data)
return NULL;
if (_version >= SCI_VERSION_1_1) {
warning("[GFX] Attempt to retrieve cursor in SCI1.1 or later");
return NULL;
}
gfx_pixmap_t *cursor = gfxr_draw_cursor(GFXR_RES_ID(GFX_RESOURCE_TYPE_CURSOR, num),
cursorRes->data, cursorRes->size, _version != SCI_VERSION_0);
if (!cursor)
return NULL;
if (!res) {
res = (gfx_resource_t *)malloc(sizeof(gfx_resource_t));
res->scaled_data.pointer = NULL;
res->ID = GFXR_RES_ID(GFX_RESOURCE_TYPE_CURSOR, num);
res->lock_sequence_nr = _tagLockCounter;
res->mode = hash;
resMap[num] = res;
} else {
gfx_free_pixmap(res->unscaled_data.pointer);
}
#ifdef CUSTOM_GRAPHICS_OPTIONS
gfx_get_res_config(_options, cursor);
gfx_xlate_pixmap(cursor, _driver->getMode(), _options->cursor_xlate_filter);
#else
gfx_xlate_pixmap(cursor, _driver->getMode(), GFX_XLATE_FILTER_NONE);
#endif
res->unscaled_data.pointer = cursor;
return cursor;
} else {
res->lock_sequence_nr = _tagLockCounter; // Update lock counter
return res->unscaled_data.pointer;
}
}
} // End of namespace Sci
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