netsurf/amiga/dt_picture.c

276 lines
6.6 KiB
C
Raw Normal View History

/*
* Copyright 2011 Chris Young <chris@unsatisfactorysoftware.co.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/>.
*/
/** \file
* DataTypes picture handler (implementation)
*/
#ifdef WITH_AMIGA_DATATYPES
#include "amiga/filetype.h"
#include "amiga/datatypes.h"
#include "content/content_protected.h"
#include "desktop/plotters.h"
#include "image/bitmap.h"
#include "render/box.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/talloc.h"
#include <proto/datatypes.h>
#include <proto/dos.h>
#include <proto/intuition.h>
#include <datatypes/pictureclass.h>
#include <intuition/classusr.h>
typedef struct amiga_dt_picture_content {
struct content base;
Object *dto;
int x;
int y;
int w;
int h;
} amiga_dt_picture_content;
static nserror amiga_dt_picture_create(const content_handler *handler,
lwc_string *imime_type, const http_parameter *params,
llcache_handle *llcache, const char *fallback_charset,
bool quirks, struct content **c);
static bool amiga_dt_picture_convert(struct content *c);
static void amiga_dt_picture_destroy(struct content *c);
static bool amiga_dt_picture_redraw(struct content *c,
struct content_redraw_data *data, const struct rect *clip,
const struct redraw_context *ctx);
static nserror amiga_dt_picture_clone(const struct content *old, struct content **newc);
static content_type amiga_dt_picture_content_type(lwc_string *mime_type);
static const content_handler amiga_dt_picture_content_handler = {
.create = amiga_dt_picture_create,
.data_complete = amiga_dt_picture_convert,
.destroy = amiga_dt_picture_destroy,
.redraw = amiga_dt_picture_redraw,
.clone = amiga_dt_picture_clone,
.type = amiga_dt_picture_content_type,
.no_share = false,
};
nserror amiga_dt_picture_init(void)
{
char dt_mime[50];
struct DataType *dt, *prevdt = NULL;
lwc_string *type;
lwc_error lerror;
nserror error;
BPTR fh = 0;
struct Node *node = NULL;
while((dt = ObtainDataType(DTST_RAM, NULL,
DTA_DataType, prevdt,
DTA_GroupID, GID_PICTURE, // we only support images for now
TAG_DONE)) != NULL)
{
ReleaseDataType(prevdt);
prevdt = dt;
do {
node = ami_mime_from_datatype(dt, &type, node);
if(node)
{
error = content_factory_register_handler(type,
&amiga_dt_picture_content_handler);
if (error != NSERROR_OK)
return error;
}
}while (node != NULL);
}
ReleaseDataType(prevdt);
return NSERROR_OK;
}
void amiga_dt_picture_fini(void)
{
/* Nothing to do */
}
nserror amiga_dt_picture_create(const content_handler *handler,
lwc_string *imime_type, const http_parameter *params,
llcache_handle *llcache, const char *fallback_charset,
bool quirks, struct content **c)
{
amiga_dt_picture_content *plugin;
nserror error;
plugin = talloc_zero(0, amiga_dt_picture_content);
if (plugin == NULL)
return NSERROR_NOMEM;
error = content__init(&plugin->base, handler, imime_type, params,
llcache, fallback_charset, quirks);
if (error != NSERROR_OK) {
talloc_free(plugin);
return error;
}
*c = (struct content *) plugin;
return NSERROR_OK;
}
bool amiga_dt_picture_convert(struct content *c)
{
LOG(("amiga_dt_picture_convert"));
amiga_dt_picture_content *plugin = (amiga_dt_picture_content *) c;
union content_msg_data msg_data;
int width, height;
char title[100];
const uint8 *data;
UBYTE *bm_buffer;
ULONG size;
Object *dto;
struct BitMapHeader *bmh;
unsigned int bm_flags = BITMAP_NEW;
int bm_format = PBPAFMT_RGBA;
/* This is only relevant for picture datatypes... */
data = (uint8 *)content__get_source_data(c, &size);
if(plugin->dto = NewDTObject(NULL,
DTA_SourceType, DTST_MEMORY,
DTA_SourceAddress, data,
DTA_SourceSize, size,
DTA_GroupID, GID_PICTURE,
PDTA_DestMode, PMODE_V43,
TAG_DONE))
{
if(GetDTAttrs(plugin->dto, PDTA_BitMapHeader, &bmh, TAG_DONE))
{
width = (int)bmh->bmh_Width;
height = (int)bmh->bmh_Height;
c->bitmap = bitmap_create(width, height, bm_flags);
if (!c->bitmap) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
bm_buffer = bitmap_get_buffer(c->bitmap);
IDoMethod(plugin->dto, PDTM_READPIXELARRAY,
bm_buffer, bm_format, bitmap_get_rowstride(c->bitmap),
0, 0, width, height);
}
else return false;
}
else return false;
c->width = width;
c->height = height;
/*
snprintf(title, sizeof(title), "image (%lux%lu, %lu bytes)",
width, height, size);
content__set_title(c, title);
*/
bitmap_modified(c->bitmap);
content_set_ready(c);
content_set_done(c);
content_set_status(c, "");
return true;
}
void amiga_dt_picture_destroy(struct content *c)
{
amiga_dt_picture_content *plugin = (amiga_dt_picture_content *) c;
LOG(("amiga_dt_picture_destroy"));
if (c->bitmap != NULL)
bitmap_destroy(c->bitmap);
DisposeDTObject(plugin->dto);
return;
}
bool amiga_dt_picture_redraw(struct content *c,
struct content_redraw_data *data, const struct rect *clip,
const struct redraw_context *ctx)
{
LOG(("amiga_dt_picture_redraw"));
bitmap_flags_t flags = BITMAPF_NONE;
if (data->repeat_x)
flags |= BITMAPF_REPEAT_X;
if (data->repeat_y)
flags |= BITMAPF_REPEAT_Y;
return ctx->plot->bitmap(data->x, data->y, data->width, data->height,
c->bitmap, data->background_colour, flags);
}
nserror amiga_dt_picture_clone(const struct content *old, struct content **newc)
{
amiga_dt_picture_content *plugin;
nserror error;
LOG(("amiga_dt_picture_clone"));
plugin = talloc_zero(0, amiga_dt_picture_content);
if (plugin == NULL)
return NSERROR_NOMEM;
error = content__clone(old, &plugin->base);
if (error != NSERROR_OK) {
content_destroy(&plugin->base);
return error;
}
/* We "clone" the old content by replaying conversion */
if (old->status == CONTENT_STATUS_READY ||
old->status == CONTENT_STATUS_DONE) {
if (amiga_dt_picture_convert(&plugin->base) == false) {
content_destroy(&plugin->base);
return NSERROR_CLONE_FAILED;
}
}
*newc = (struct content *) plugin;
return NSERROR_OK;
}
content_type amiga_dt_picture_content_type(lwc_string *mime_type)
{
return CONTENT_IMAGE;
}
#endif