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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/primitives.h"
#include "sci/sci.h"
#include "sci/gfx/gfx_driver.h"
#include "sci/gfx/gfx_tools.h"
namespace Sci {
struct _scummvm_driver_state {
gfx_pixmap_t *priority[2];
byte *visual[2];
uint8 *pointer_data;
int xsize, ysize;
};
#define S ((struct _scummvm_driver_state *)(drv->state))
static int scummvm_init(gfx_driver_t *drv, int xfact, int yfact, int bytespp) {
int i;
if (!drv->state) // = S
drv->state = new _scummvm_driver_state;
if (!drv->state)
return GFX_FATAL;
S->xsize = xfact * 320;
S->ysize = yfact * 200;
S->pointer_data = NULL;
//S->buckystate = 0;
for (i = 0; i < 2; i++) {
S->priority[i] = gfx_pixmap_alloc_index_data(gfx_new_pixmap(S->xsize, S->ysize, GFX_RESID_NONE, -i, -777));
if (!S->priority[i]) {
printf("Out of memory: Could not allocate priority maps! (%dx%d)\n", S->xsize, S->ysize);
return GFX_FATAL;
}
}
// create the visual buffers
for (i = 0; i < 2; i++) {
S->visual[i] = NULL;
S->visual[i] = new byte[S->xsize * S->ysize];
if (!S->visual[i]) {
printf("Out of memory: Could not allocate visual buffers! (%dx%d)\n", S->xsize, S->ysize);
return GFX_FATAL;
}
memset(S->visual[i], 0, S->xsize * S->ysize);
}
Graphics::PixelFormat format = { bytespp, 0, 0, 0, 0, 0, 0, 0, 0 };
drv->mode = gfx_new_mode(xfact, yfact, format, new Palette(256), 0);
drv->mode->palette->name = "global";
return GFX_OK;
}
static void scummvm_exit(gfx_driver_t *drv) {
int i;
if (S) {
for (i = 0; i < 2; i++) {
gfx_free_pixmap(S->priority[i]);
S->priority[i] = NULL;
}
for (i = 0; i < 2; i++) {
delete[] S->visual[i];
S->visual[i] = NULL;
}
delete[] S->pointer_data;
S->pointer_data = NULL;
delete S;
}
}
// Drawing operations
static void drawProc(int x, int y, int c, void *data) {
gfx_driver_t *drv = (gfx_driver_t *)data;
uint8 *p = S->visual[0];
p[y * 320*drv->mode->xfact + x] = c;
}
static int scummvm_draw_line(gfx_driver_t *drv, 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: drv->mode->xfact;
int yfact = (line_mode == GFX_LINE_MODE_FINE)? 1: drv->mode->yfact;
int xsize = S->xsize;
int ysize = S->ysize;
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, drawProc, drv);
if (color.mask & GFX_MASK_PRIORITY) {
gfx_draw_line_pixmap_i(S->priority[0], nstart, nend, color.priority);
}
}
}
}
return GFX_OK;
}
static int scummvm_draw_filled_rect(gfx_driver_t *drv, 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(S->visual[0] + i * S->xsize + rect.x, color1.visual.parent_index, rect.width);
}
}
if (color1.mask & GFX_MASK_PRIORITY)
gfx_draw_box_pixmap_i(S->priority[0], rect, color1.priority);
return GFX_OK;
}
// Pixmap operations
static int scummvm_draw_pixmap(gfx_driver_t *drv, 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(drv->mode, pxm, priority, src, dest, S->visual[bufnr], S->xsize,
S->priority[bufnr]->index_data, S->priority[bufnr]->index_width, 1, 0);
return GFX_OK;
}
static int scummvm_grab_pixmap(gfx_driver_t *drv, 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, S->visual[0] + (i + src.y) * S->xsize + src.x, src.width);
}
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
static int scummvm_update(gfx_driver_t *drv, 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(S->visual[0] + (dest.y + i) * S->xsize + dest.x,
S->visual[1] + (src.y + i) * S->xsize + src.x, src.width);
}
if ((src.x == dest.x) && (src.y == dest.y))
gfx_copy_pixmap_box_i(S->priority[0], S->priority[1], src);
break;
case GFX_BUFFER_FRONT:
g_system->copyRectToScreen(S->visual[0] + src.x + src.y * S->xsize, S->xsize, 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;
}
static int scummvm_set_static_buffer(gfx_driver_t *drv, gfx_pixmap_t *pic, gfx_pixmap_t *priority) {
memcpy(S->visual[1], pic->data, S->xsize * S->ysize);
gfx_copy_pixmap_box_i(S->priority[1], priority, gfx_rect(0, 0, S->xsize, S->ysize));
return GFX_OK;
}
// Mouse pointer operations
// Scale cursor and map its colors to the global palette
static uint8 *create_cursor(gfx_driver_t *drv, gfx_pixmap_t *pointer, int mode)
{
int linewidth = pointer->width;
int lines = pointer->height;
uint8 *data = new uint8[linewidth*lines];
uint8 *linebase = data, *pos;
uint8 *src = pointer->index_data;
for (int yc = 0; yc < pointer->index_height; yc++) {
pos = linebase;
for (int xc = 0; xc < pointer->index_width; xc++) {
uint8 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 < drv->mode->xfact; scalectr++) {
*pos++ = color;
}
src++;
}
for (int scalectr = 1; scalectr < drv->mode->yfact; scalectr++)
memcpy(linebase + linewidth * scalectr, linebase, linewidth);
linebase += linewidth * drv->mode->yfact;
}
return data;
}
static int scummvm_set_pointer(gfx_driver_t *drv, gfx_pixmap_t *pointer, Common::Point *hotspot) {
if ((pointer == NULL) || (hotspot == NULL)) {
g_system->showMouse(false);
} else {
delete[] S->pointer_data;
S->pointer_data = create_cursor(drv, pointer, 1);
// 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
uint8 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 in SQ5 don't have a palette. The cursor palette seems to use 64 colors, so setting the color key to 63 works
// TODO: Is this correct?
if (!pointer->palette)
color_key = 63;
g_system->setMouseCursor(S->pointer_data, pointer->width, pointer->height, hotspot->x, hotspot->y, color_key);
g_system->showMouse(true);
}
return GFX_OK;
}
gfx_driver_t gfx_driver_scummvm = {
NULL,
0, 0,
0,
NULL,
scummvm_init,
scummvm_exit,
scummvm_draw_line,
scummvm_draw_filled_rect,
scummvm_draw_pixmap,
scummvm_grab_pixmap,
scummvm_update,
scummvm_set_static_buffer,
scummvm_set_pointer,
NULL
};
} // End of namespace Sci
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