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netsurf/riscos/save_draw.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

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/*
* Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
* Copyright 2004-2008 John Tytgat <joty@netsurf-browser.org>
* Copyright 2007 James Bursa <bursa@users.sourceforge.net>
*
* 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/>.
*/
/** \file
* Export a content as a DrawFile (implementation).
*/
#ifdef WITH_DRAW_EXPORT
#include <assert.h>
#include <limits.h>
#include <oslib/draw.h>
#include <oslib/osfile.h>
#include <pencil.h>
#include "utils/log.h"
#include "utils/utils.h"
#include "content/content.h"
#include "content/hlcache.h"
#include "desktop/plotters.h"
#include "riscos/bitmap.h"
#include "riscos/gui.h"
#include "riscos/save_draw.h"
#include "riscos/font.h"
static bool ro_save_draw_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style);
static bool ro_save_draw_line(int x0, int y0, int x1, int y1, const plot_style_t *style);
static bool ro_save_draw_polygon(const int *p, unsigned int n, const plot_style_t *style);
static bool ro_save_draw_path(const float *p, unsigned int n, colour fill,
float width, colour c, const float transform[6]);
static bool ro_save_draw_clip(const struct rect *clip);
static bool ro_save_draw_text(int x, int y, const char *text, size_t length,
const plot_font_style_t *fstyle);
static bool ro_save_draw_disc(int x, int y, int radius, const plot_style_t *style);
static bool ro_save_draw_arc(int x, int y, int radius, int angle1, int angle2,
const plot_style_t *style);
static bool ro_save_draw_bitmap(int x, int y, int width, int height,
struct bitmap *bitmap, colour bg, bitmap_flags_t flags);
static bool ro_save_draw_group_start(const char *name);
static bool ro_save_draw_group_end(void);
static bool ro_save_draw_error(pencil_code code);
static const struct plotter_table ro_save_draw_plotters = {
.rectangle = ro_save_draw_rectangle,
.line = ro_save_draw_line,
.polygon = ro_save_draw_polygon,
.clip = ro_save_draw_clip,
.text = ro_save_draw_text,
.disc = ro_save_draw_disc,
.arc = ro_save_draw_arc,
.bitmap = ro_save_draw_bitmap,
.group_start = ro_save_draw_group_start,
.group_end = ro_save_draw_group_end,
.path = ro_save_draw_path,
.option_knockout = false,
};
static struct pencil_diagram *ro_save_draw_diagram;
static int ro_save_draw_width;
static int ro_save_draw_height;
/**
* Export a content as a DrawFile.
*
* \param h content to export
* \param path path to save DrawFile as
* \return true on success, false on error and error reported
*/
bool save_as_draw(hlcache_handle *h, const char *path)
{
pencil_code code;
char *drawfile_buffer;
struct rect clip;
struct content_redraw_data data;
size_t drawfile_size;
os_error *error;
struct redraw_context ctx = {
.interactive = false,
.background_images = true,
.plot = &ro_save_draw_plotters
};
ro_save_draw_diagram = pencil_create();
if (!ro_save_draw_diagram) {
warn_user("NoMemory", 0);
return false;
}
ro_save_draw_width = content_get_width(h);
ro_save_draw_height = content_get_height(h);
clip.x0 = clip.y0 = INT_MIN;
clip.x1 = clip.y1 = INT_MAX;
data.x = 0;
data.y = -ro_save_draw_height;
data.width = ro_save_draw_width;
data.height = ro_save_draw_height;
data.background_colour = 0xFFFFFF;
data.scale = 1;
data.repeat_x = false;
data.repeat_y = false;
if (!content_redraw(h, &data, &clip, &ctx)) {
pencil_free(ro_save_draw_diagram);
return false;
}
/*pencil_dump(ro_save_draw_diagram);*/
code = pencil_save_drawfile(ro_save_draw_diagram, "NetSurf",
&drawfile_buffer, &drawfile_size);
if (code != pencil_OK) {
warn_user("SaveError", 0);
pencil_free(ro_save_draw_diagram);
return false;
}
assert(drawfile_buffer);
error = xosfile_save_stamped(path, osfile_TYPE_DRAW,
(byte *) drawfile_buffer,
(byte *) drawfile_buffer + drawfile_size);
if (error) {
LOG("xosfile_save_stamped failed: 0x%x: %s", error->errnum, error->errmess);
warn_user("SaveError", error->errmess);
pencil_free(ro_save_draw_diagram);
return false;
}
pencil_free(ro_save_draw_diagram);
return true;
}
bool ro_save_draw_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style)
{
pencil_code code;
const int path[] = { draw_MOVE_TO, x0 * 2, -y0 * 2 - 1,
draw_LINE_TO, x1 * 2, -y0 * 2 - 1,
draw_LINE_TO, x1 * 2, -y1 * 2 - 1,
draw_LINE_TO, x0 * 2, -y1 * 2 - 1,
draw_CLOSE_LINE,
draw_END_PATH };
if (style->fill_type != PLOT_OP_TYPE_NONE) {
code = pencil_path(ro_save_draw_diagram,
path,
sizeof path / sizeof path[0],
style->fill_colour << 8,
pencil_TRANSPARENT,
0,
pencil_JOIN_MITRED,
pencil_CAP_BUTT,
pencil_CAP_BUTT,
0,
0,
false,
pencil_SOLID);
if (code != pencil_OK)
return ro_save_draw_error(code);
}
if (style->stroke_type != PLOT_OP_TYPE_NONE) {
code = pencil_path(ro_save_draw_diagram,
path,
sizeof path / sizeof path[0],
pencil_TRANSPARENT,
style->stroke_colour << 8,
style->stroke_width,
pencil_JOIN_MITRED,
pencil_CAP_BUTT,
pencil_CAP_BUTT,
0,
0,
false,
pencil_SOLID);
if (code != pencil_OK)
return ro_save_draw_error(code);
}
return true;
}
bool ro_save_draw_line(int x0, int y0, int x1, int y1, const plot_style_t *style)
{
pencil_code code;
const int path[] = { draw_MOVE_TO, x0 * 2, -y0 * 2 - 1,
draw_LINE_TO, x1 * 2, -y1 * 2 - 1,
draw_END_PATH };
code = pencil_path(ro_save_draw_diagram,
path,
sizeof path / sizeof path[0],
pencil_TRANSPARENT,
style->stroke_colour << 8,
style->stroke_width,
pencil_JOIN_MITRED,
pencil_CAP_BUTT,
pencil_CAP_BUTT,
0, 0, false,
pencil_SOLID);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
bool ro_save_draw_polygon(const int *p, unsigned int n, const plot_style_t *style)
{
pencil_code code;
int path[n * 3 + 1];
unsigned int i;
for (i = 0; i != n; i++) {
path[i * 3 + 0] = draw_LINE_TO;
path[i * 3 + 1] = p[i * 2 + 0] * 2;
path[i * 3 + 2] = -p[i * 2 + 1] * 2;
}
path[0] = draw_MOVE_TO;
path[n * 3] = draw_END_PATH;
code = pencil_path(ro_save_draw_diagram,
path, n * 3 + 1,
style->fill_colour << 8,
pencil_TRANSPARENT,
0,
pencil_JOIN_MITRED,
pencil_CAP_BUTT,
pencil_CAP_BUTT,
0,
0,
false,
pencil_SOLID);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
bool ro_save_draw_path(const float *p, unsigned int n, colour fill,
float width, colour c, const float transform[6])
{
if (n == 0)
return true;
if (p[0] != PLOTTER_PATH_MOVE) {
LOG("path doesn't start with a move");
return false;
}
int *path = malloc(sizeof *path * (n + 10));
if (!path) {
LOG("out of memory");
return false;
}
unsigned int i;
bool empty_path = true;
for (i = 0; i < n; ) {
if (p[i] == PLOTTER_PATH_MOVE) {
path[i] = draw_MOVE_TO;
path[i + 1] = (transform[0] * p[i + 1] +
transform[2] * -p[i + 2] +
transform[4]) * 2;
path[i + 2] = (transform[1] * p[i + 1] +
transform[3] * -p[i + 2] +
-transform[5]) * 2;
i += 3;
} else if (p[i] == PLOTTER_PATH_CLOSE) {
path[i] = draw_CLOSE_LINE;
i++;
} else if (p[i] == PLOTTER_PATH_LINE) {
path[i] = draw_LINE_TO;
path[i + 1] = (transform[0] * p[i + 1] +
transform[2] * -p[i + 2] +
transform[4]) * 2;
path[i + 2] = (transform[1] * p[i + 1] +
transform[3] * -p[i + 2] +
-transform[5]) * 2;
i += 3;
empty_path = false;
} else if (p[i] == PLOTTER_PATH_BEZIER) {
path[i] = draw_BEZIER_TO;
path[i + 1] = (transform[0] * p[i + 1] +
transform[2] * -p[i + 2] +
transform[4]) * 2;
path[i + 2] = (transform[1] * p[i + 1] +
transform[3] * -p[i + 2] +
-transform[5]) * 2;
path[i + 3] = (transform[0] * p[i + 3] +
transform[2] * -p[i + 4] +
transform[4]) * 2;
path[i + 4] = (transform[1] * p[i + 3] +
transform[3] * -p[i + 4] +
-transform[5]) * 2;
path[i + 5] = (transform[0] * p[i + 5] +
transform[2] * -p[i + 6] +
transform[4]) * 2;
path[i + 6] = (transform[1] * p[i + 5] +
transform[3] * -p[i + 6] +
-transform[5]) * 2;
i += 7;
empty_path = false;
} else {
LOG("bad path command %f", p[i]);
free(path);
return false;
}
}
path[i] = draw_END_PATH;
if (empty_path) {
free(path);
return true;
}
pencil_code code = pencil_path(ro_save_draw_diagram, path, i + 1,
fill == NS_TRANSPARENT ? pencil_TRANSPARENT : fill << 8,
c == NS_TRANSPARENT ? pencil_TRANSPARENT : c << 8,
width, pencil_JOIN_MITRED,
pencil_CAP_BUTT, pencil_CAP_BUTT, 0, 0, false,
pencil_SOLID);
free(path);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
bool ro_save_draw_clip(const struct rect *clip)
{
return true;
}
bool ro_save_draw_text(int x, int y, const char *text, size_t length,
const plot_font_style_t *fstyle)
{
pencil_code code;
const char *font_family;
unsigned int font_size;
rufl_style font_style;
nsfont_read_style(fstyle, &font_family, &font_size, &font_style);
code = pencil_text(ro_save_draw_diagram, x * 2, -y * 2, font_family,
font_style, font_size, text, length,
fstyle->foreground << 8);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
bool ro_save_draw_disc(int x, int y, int radius, const plot_style_t *style)
{
return true;
}
bool ro_save_draw_arc(int x, int y, int radius, int angle1, int angle2,
const plot_style_t *style)
{
return true;
}
bool ro_save_draw_bitmap(int x, int y, int width, int height,
struct bitmap *bitmap, colour bg, bitmap_flags_t flags)
{
pencil_code code;
const uint8_t *buffer;
buffer = riscos_bitmap_get_buffer(bitmap);
if (!buffer) {
warn_user("NoMemory", 0);
return false;
}
code = pencil_sprite(ro_save_draw_diagram, x * 2, (-y - height) * 2,
width * 2, height * 2,
((char *) bitmap->sprite_area) +
bitmap->sprite_area->first);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
bool ro_save_draw_group_start(const char *name)
{
pencil_code code;
code = pencil_group_start(ro_save_draw_diagram, name);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
bool ro_save_draw_group_end(void)
{
pencil_code code;
code = pencil_group_end(ro_save_draw_diagram);
if (code != pencil_OK)
return ro_save_draw_error(code);
return true;
}
/**
* Report an error from pencil.
*
* \param code error code
* \return false
*/
bool ro_save_draw_error(pencil_code code)
{
LOG("code %i", code);
switch (code) {
case pencil_OK:
assert(0);
break;
case pencil_OUT_OF_MEMORY:
warn_user("NoMemory", 0);
break;
case pencil_FONT_MANAGER_ERROR:
warn_user("SaveError", rufl_fm_error->errmess);
break;
case pencil_FONT_NOT_FOUND:
case pencil_IO_ERROR:
case pencil_IO_EOF:
warn_user("SaveError", "generating the DrawFile failed");
break;
}
return false;
}
#endif
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