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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.
*
* $URL$
* $Id$
*
*/
#include "common/scummsys.h"
#include "common/system.h"
#include "graphics/cursorman.h"
#include "graphics/primitives.h"
#include "graphics/surface.h"
#include "sci/sci.h"
#include "sci/gfx/gfx_driver.h"
#include "sci/gfx/gfx_tools.h"
namespace Sci {
GfxDriver::GfxDriver(int xfact, int yfact, Graphics::PixelFormat format) {
int i;
_mode = gfx_new_mode(xfact, yfact, format, format.bytesPerPixel == 1 ? new Palette(256) : 0, 0);
_mode->xsize = xfact * 320;
_mode->ysize = yfact * 200;
for (i = 0; i < 2; i++) {
_priority[i] = gfx_pixmap_alloc_index_data(gfx_new_pixmap(_mode->xsize, _mode->ysize, GFX_RESID_NONE, -i, -777));
if (!_priority[i]) {
error("Out of memory: Could not allocate priority maps! (%dx%d)\n", _mode->xsize, _mode->ysize);
}
}
// create the visual buffers
for (i = 0; i < 2; i++) {
_visual[i] = NULL;
_visual[i] = new byte[_mode->xsize * _mode->ysize * _mode->bytespp];
if (!_visual[i]) {
error("Out of memory: Could not allocate visual buffers! (%dx%d)\n", _mode->xsize, _mode->ysize);
}
memset(_visual[i], 0, _mode->xsize * _mode->ysize * _mode->bytespp);
}
if (_mode->palette)
_mode->palette->name = "global";
}
GfxDriver::~GfxDriver() {
int i;
for (i = 0; i < 2; i++) {
gfx_free_pixmap(_priority[i]);
_priority[i] = NULL;
}
for (i = 0; i < 2; i++) {
delete[] _visual[i];
_visual[i] = NULL;
}
}
// Drawing operations
template<int COPY_BYTES, typename SIZETYPE, int EXTRA_BYTE_OFFSET>
static void drawProc(int x, int y, int c, void *data) {
GfxDriver *drv = (GfxDriver *)data;
byte *p = drv->getVisual0();
SIZETYPE col = c << (EXTRA_BYTE_OFFSET * 8);
memcpy(p + (y * 320* drv->getMode()->xfact + x) * COPY_BYTES, &col, COPY_BYTES);
}
int GfxDriver::drawLine(Common::Point start, Common::Point end, gfx_color_t color,
gfx_line_mode_t line_mode, gfx_line_style_t line_style) {
uint32 scolor = color.visual.parent_index;
int xfact = (line_mode == GFX_LINE_MODE_FINE)? 1: _mode->xfact;
int yfact = (line_mode == GFX_LINE_MODE_FINE)? 1: _mode->yfact;
int xsize = _mode->xsize;
int ysize = _mode->ysize;
void (*modeDrawProc)(int,int,int,void*);
switch (_mode->bytespp) {
case 1:
modeDrawProc = drawProc<1, uint8, 0>;
break;
case 2:
modeDrawProc = drawProc<2, uint16, 0>;
break;
case 3:
#ifdef SCUMM_BIG_ENDIAN
modeDrawProc = drawProc<3, uint32, 1>;
#else
modeDrawProc = drawProc<3, uint32, 0>;
#endif
break;
case 4:
modeDrawProc = drawProc<4, uint32, 0>;
break;
default:
GFXERROR("Invalid mode->bytespp=%d\n", _mode->bytespp);
}
if (color.mask & GFX_MASK_VISUAL) {
Common::Point nstart, nend;
for (int xc = 0; xc < xfact; xc++) {
for (int yc = 0; yc < yfact; yc++) {
nstart.x = CLIP<int16>(start.x + xc, 0, xsize);
nstart.y = CLIP<int16>(start.y + yc, 0, ysize);
nend.x = CLIP<int16>(end.x + xc, 0, xsize - 1);
nend.y = CLIP<int16>(end.y + yc, 0, ysize - 1);
Graphics::drawLine(nstart.x, nstart.y, nend.x, nend.y, scolor, modeDrawProc, this);
if (color.mask & GFX_MASK_PRIORITY) {
gfx_draw_line_pixmap_i(_priority[0], nstart, nend, color.priority);
}
}
}
}
return GFX_OK;
}
int GfxDriver::drawFilledRect(rect_t rect, gfx_color_t color1, gfx_color_t color2,
gfx_rectangle_fill_t shade_mode) {
if (color1.mask & GFX_MASK_VISUAL) {
for (int i = rect.y; i < rect.y + rect.height; i++) {
memset(_visual[0] + (i * _mode->xsize + rect.x) * _mode->bytespp,
color1.visual.parent_index, rect.width * _mode->bytespp);
}
}
if (color1.mask & GFX_MASK_PRIORITY)
gfx_draw_box_pixmap_i(_priority[0], rect, color1.priority);
return GFX_OK;
}
// Pixmap operations
int GfxDriver::drawPixmap(gfx_pixmap_t *pxm, int priority, rect_t src, rect_t dest, gfx_buffer_t buffer) {
int bufnr = (buffer == GFX_BUFFER_STATIC) ? 1 : 0;
if (dest.width != src.width || dest.height != src.height) {
printf("Attempt to scale pixmap (%dx%d)->(%dx%d): Not supported\n", src.width, src.height, dest.width, dest.height);
return GFX_ERROR;
}
gfx_crossblit_pixmap(_mode, pxm, priority, src, dest, _visual[bufnr],
_mode->xsize * _mode->bytespp,
_priority[bufnr]->index_data,
_priority[bufnr]->index_width, 1, 0);
return GFX_OK;
}
int GfxDriver::grabPixmap(rect_t src, gfx_pixmap_t *pxm, gfx_map_mask_t map) {
if (src.x < 0 || src.y < 0) {
printf("Attempt to grab pixmap from invalid coordinates (%d,%d)\n", src.x, src.y);
return GFX_ERROR;
}
if (!pxm->data) {
printf("Attempt to grab pixmap to unallocated memory\n");
return GFX_ERROR;
}
switch (map) {
case GFX_MASK_VISUAL:
pxm->width = src.width;
pxm->height = src.height;
for (int i = 0; i < src.height; i++) {
memcpy(pxm->data + i * src.width * _mode->bytespp,
_visual[0] + _mode->bytespp * ((i + src.y) * _mode->xsize + src.x),
src.width * _mode->bytespp);
}
break;
case GFX_MASK_PRIORITY:
printf("FIXME: priority map grab not implemented yet!\n");
break;
default:
printf("Attempt to grab pixmap from invalid map 0x%02x\n", map);
return GFX_ERROR;
}
return GFX_OK;
}
// Buffer operations
int GfxDriver::update(rect_t src, Common::Point dest, gfx_buffer_t buffer) {
//TODO
/*
if (src.x != dest.x || src.y != dest.y) {
printf("Updating %d (%d,%d)(%dx%d) to (%d,%d) on %d\n", buffer, src.x, src.y, src.width, src.height, dest.x, dest.y, data_dest);
} else {
printf("Updating %d (%d,%d)(%dx%d) to %d\n", buffer, src.x, src.y, src.width, src.height, data_dest);
}
*/
switch (buffer) {
case GFX_BUFFER_BACK:
for (int i = 0; i < src.height; i++) {
memcpy(_visual[0] + _mode->bytespp * ( (dest.y + i) * _mode->xsize + dest.x),
_visual[1] + _mode->bytespp * ( (src.y + i) * _mode->xsize + src.x), src.width * _mode->bytespp );
}
if ((src.x == dest.x) && (src.y == dest.y))
gfx_copy_pixmap_box_i(_priority[0], _priority[1], src);
break;
case GFX_BUFFER_FRONT: {
g_system->copyRectToScreen(_visual[0] + _mode->bytespp * (src.x + src.y * _mode->xsize), _mode->xsize * _mode->bytespp, dest.x, dest.y, src.width, src.height);
g_system->updateScreen();
break;
}
default:
GFXERROR("Invalid buffer %d in update!\n", buffer);
return GFX_ERROR;
}
return GFX_OK;
}
int GfxDriver::setStaticBuffer(gfx_pixmap_t *pic, gfx_pixmap_t *priority) {
memcpy(_visual[1], pic->data, _mode->xsize * _mode->ysize * _mode->bytespp);
gfx_copy_pixmap_box_i(_priority[1], priority, gfx_rect(0, 0, _mode->xsize, _mode->ysize));
return GFX_OK;
}
// Mouse pointer operations
// Scale cursor and map its colors to the global palette
byte *GfxDriver::createCursor(gfx_pixmap_t *pointer) {
int linewidth = pointer->width;
int lines = pointer->height;
byte *data = new byte[linewidth*lines];
byte *linebase = data, *pos;
byte *src = pointer->index_data;
for (int yc = 0; yc < pointer->index_height; yc++) {
pos = linebase;
for (int xc = 0; xc < pointer->index_width; xc++) {
byte color = *src;
// FIXME: The palette size check is a workaround for cursors using non-palette colour GFX_CURSOR_TRANSPARENT
// Note that some cursors don't have a palette in SQ5
if (pointer->palette && color < pointer->palette->size())
color = pointer->palette->getColor(color).parent_index;
for (int scalectr = 0; scalectr < _mode->xfact; scalectr++) {
*pos++ = color;
}
src++;
}
for (int scalectr = 1; scalectr < _mode->yfact; scalectr++)
memcpy(linebase + linewidth * scalectr, linebase, linewidth);
linebase += linewidth * _mode->yfact;
}
return data;
}
int GfxDriver::setPointer(gfx_pixmap_t *pointer, Common::Point *hotspot) {
if ((pointer == NULL) || (hotspot == NULL)) {
CursorMan.showMouse(false);
} else {
byte *cursorData = createCursor(pointer);
// FIXME: The palette size check is a workaround for cursors using non-palette color GFX_CURSOR_TRANSPARENT
// Note that some cursors don't have a palette (e.g. in SQ5 and QFG3)
byte color_key = GFX_CURSOR_TRANSPARENT;
if ((pointer->color_key != GFX_PIXMAP_COLOR_KEY_NONE) && (pointer->palette && (unsigned int)pointer->color_key < pointer->palette->size()))
color_key = pointer->palette->getColor(pointer->color_key).parent_index;
// Some cursors don't have a palette, so we set the color key directly
if (!pointer->palette)
color_key = pointer->color_key;
CursorMan.replaceCursor(cursorData, pointer->width, pointer->height, hotspot->x, hotspot->y, color_key);
CursorMan.showMouse(true);
delete[] cursorData;
cursorData = 0;
}
return GFX_OK;
}
} // End of namespace Sci
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