netsurf/riscos/image.c
Vincent Sanders c105738fa3 Change LOG() macro to be varadic
This changes the LOG macro to be varadic removing the need for all
callsites to have double bracketing and allows for future improvement
on how we use the logging macros.

The callsites were changed with coccinelle and the changes checked by
hand. Compile tested for several frontends but not all.

A formatting annotation has also been added which allows the compiler
to check the parameters and types passed to the logging.
2015-05-28 16:08:46 +01:00

220 lines
6.6 KiB
C

/*
* Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
#include <swis.h>
#include <oslib/colourtrans.h>
#include <oslib/osspriteop.h>
#include "utils/nsoption.h"
#include "utils/log.h"
#include "utils/utils.h"
#include "riscos/image.h"
#include "riscos/gui.h"
#include "riscos/tinct.h"
static bool image_redraw_tinct(osspriteop_id header, int x, int y,
int req_width, int req_height, int width, int height,
colour background_colour, bool repeatx, bool repeaty,
bool alpha, unsigned int tinct_options);
static bool image_redraw_os(osspriteop_id header, int x, int y,
int req_width, int req_height, int width, int height);
/**
* Plot an image at the given coordinates using the method specified
*
* \param area The sprite area containing the sprite
* \param x Left edge of sprite
* \param y Top edge of sprite
* \param req_width The requested width of the sprite
* \param req_height The requested height of the sprite
* \param width The actual width of the sprite
* \param height The actual height of the sprite
* \param background_colour The background colour to blend to
* \param repeatx Repeat the image in the x direction
* \param repeaty Repeat the image in the y direction
* \param background Use background image settings (otherwise foreground)
* \param type The plot method to use
* \return true on success, false otherwise
*/
bool image_redraw(osspriteop_area *area, int x, int y, int req_width,
int req_height, int width, int height,
colour background_colour,
bool repeatx, bool repeaty, bool background, image_type type)
{
unsigned int tinct_options;
/* failed decompression/loading can result in no image being present */
if (!area)
return false;
osspriteop_id header = (osspriteop_id)
((char*) area + area->first);
req_width *= 2;
req_height *= 2;
width *= 2;
height *= 2;
tinct_options = background ? nsoption_int(plot_bg_quality) :
nsoption_int(plot_fg_quality);
switch (type) {
case IMAGE_PLOT_TINCT_ALPHA:
return image_redraw_tinct(header, x, y,
req_width, req_height,
width, height,
background_colour,
repeatx, repeaty, true,
tinct_options);
case IMAGE_PLOT_TINCT_OPAQUE:
return image_redraw_tinct(header, x, y,
req_width, req_height,
width, height,
background_colour,
repeatx, repeaty, false,
tinct_options);
case IMAGE_PLOT_OS:
return image_redraw_os(header, x, y, req_width,
req_height, width, height);
default:
break;
}
return false;
}
/**
* Plot an image at the given coordinates using tinct
*
* \param header The sprite header
* \param x Left edge of sprite
* \param y Top edge of sprite
* \param req_width The requested width of the sprite
* \param req_height The requested height of the sprite
* \param width The actual width of the sprite
* \param height The actual height of the sprite
* \param background_colour The background colour to blend to
* \param repeatx Repeat the image in the x direction
* \param repeaty Repeat the image in the y direction
* \param alpha Use the alpha channel
* \param tinct_options The base option set to use
* \return true on success, false otherwise
*/
bool image_redraw_tinct(osspriteop_id header, int x, int y,
int req_width, int req_height, int width, int height,
colour background_colour, bool repeatx, bool repeaty,
bool alpha, unsigned int tinct_options)
{
_kernel_oserror *error;
/* Set up our flagword
*/
tinct_options |= background_colour << tinct_BACKGROUND_SHIFT;
if (print_active)
tinct_options |= tinct_USE_OS_SPRITE_OP;
if (repeatx)
tinct_options |= tinct_FILL_HORIZONTALLY;
if (repeaty)
tinct_options |= tinct_FILL_VERTICALLY;
if (alpha) {
error = _swix(Tinct_PlotScaledAlpha, _INR(2,7),
header, x, y - req_height,
req_width, req_height, tinct_options);
} else {
error = _swix(Tinct_PlotScaled, _INR(2,7),
header, x, y - req_height,
req_width, req_height, tinct_options);
}
if (error) {
LOG("xtinct_plotscaled%s: 0x%x: %s", (alpha ? "alpha" : ""), error->errnum, error->errmess);
return false;
}
return true;
}
/**
* Plot an image at the given coordinates using os_spriteop
*
* \param header The sprite header
* \param x Left edge of sprite
* \param y Top edge of sprite
* \param req_width The requested width of the sprite
* \param req_height The requested height of the sprite
* \param width The actual width of the sprite
* \param height The actual height of the sprite
* \return true on success, false otherwise
*/
bool image_redraw_os(osspriteop_id header, int x, int y, int req_width,
int req_height, int width, int height)
{
int size;
os_factors f;
osspriteop_trans_tab *table;
os_error *error;
error = xcolourtrans_generate_table_for_sprite(
(osspriteop_area *)0x100, header,
os_CURRENT_MODE,
colourtrans_CURRENT_PALETTE,
0, colourtrans_GIVEN_SPRITE, 0, 0, &size);
if (error) {
LOG("xcolourtrans_generate_table_for_sprite: 0x%x: %s", error->errnum, error->errmess);
return false;
}
table = calloc(size, sizeof(char));
if (!table) {
LOG("malloc failed");
warn_user("NoMemory", 0);
return false;
}
error = xcolourtrans_generate_table_for_sprite(
(osspriteop_area *)0x100, header,
os_CURRENT_MODE,
colourtrans_CURRENT_PALETTE,
table, colourtrans_GIVEN_SPRITE, 0, 0, 0);
if (error) {
LOG("xcolourtrans_generate_table_for_sprite: 0x%x: %s", error->errnum, error->errmess);
free(table);
return false;
}
f.xmul = req_width;
f.ymul = req_height;
f.xdiv = width;
f.ydiv = height;
error = xosspriteop_put_sprite_scaled(osspriteop_PTR,
(osspriteop_area *)0x100, header,
x, (int)(y - req_height),
8, &f, table);
if (error) {
LOG("xosspriteop_put_sprite_scaled: 0x%x: %s", error->errnum, error->errmess);
free(table);
return false;
}
free(table);
return true;
}