netsurf/amiga/dt_picture.c

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/*
* Copyright 2011 - 2012 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 "image/image_cache.h"
#include "utils/log.h"
#include "utils/messages.h"
#include <proto/datatypes.h>
#include <proto/dos.h>
#include <proto/intuition.h>
#include <datatypes/pictureclass.h>
#include <intuition/classusr.h>
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 nserror amiga_dt_picture_clone(const struct content *old, struct content **newc);
static void amiga_dt_picture_destroy(struct content *c);
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 = image_cache_redraw,
.clone = amiga_dt_picture_clone,
.get_internal = image_cache_get_internal,
.type = image_cache_content_type,
.no_share = false,
};
struct amiga_dt_picture_content {
struct content c;
Object *dto;
};
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(
lwc_string_data(type),
&amiga_dt_picture_content_handler);
if (error != NSERROR_OK)
return error;
}
}while (node != NULL);
}
ReleaseDataType(prevdt);
return NSERROR_OK;
}
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)
{
struct amiga_dt_picture_content *adt;
nserror error;
adt = calloc(1, sizeof(struct amiga_dt_picture_content));
if (adt == NULL)
return NSERROR_NOMEM;
error = content__init((struct content *)adt, handler, imime_type, params,
llcache, fallback_charset, quirks);
if (error != NSERROR_OK) {
free(adt);
return error;
}
*c = (struct content *)adt;
return NSERROR_OK;
}
Object *amiga_dt_picture_newdtobject(struct amiga_dt_picture_content *adt)
{
const uint8 *data;
ULONG size;
if(adt->dto == NULL) {
data = (uint8 *)content__get_source_data((struct content *)adt, &size);
adt->dto = NewDTObject(NULL,
DTA_SourceType, DTST_MEMORY,
DTA_SourceAddress, data,
DTA_SourceSize, size,
DTA_GroupID, GID_PICTURE,
PDTA_DestMode, PMODE_V43,
TAG_DONE);
}
return adt->dto;
}
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char *amiga_dt_picture_datatype(struct content *c)
{
const uint8 *data;
ULONG size;
struct DataType *dt;
char *filetype = NULL;
data = (uint8 *)content__get_source_data(c, &size);
if(dt = ObtainDataType(DTST_MEMORY, NULL,
DTA_SourceAddress, data,
DTA_SourceSize, size,
DTA_GroupID, GID_PICTURE,
TAG_DONE)) {
filetype = strdup(dt->dtn_Header->dth_Name);
ReleaseDataType(dt);
}
if(filetype == NULL) filetype = strdup("DataTypes");
return filetype;
}
static struct bitmap *amiga_dt_picture_cache_convert(struct content *c)
{
LOG(("amiga_dt_picture_cache_convert"));
union content_msg_data msg_data;
UBYTE *bm_buffer;
Object *dto;
struct bitmap *bitmap;
unsigned int bm_flags = BITMAP_NEW;
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#ifdef __amigaos4__
int bm_format = PBPAFMT_RGBA;
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#else
int bm_format = PBPAFMT_ARGB;
#endif
struct amiga_dt_picture_content *adt = (struct amiga_dt_picture_content *)c;
if(dto = amiga_dt_picture_newdtobject(adt))
{
bitmap = bitmap_create(c->width, c->height, bm_flags);
if (!bitmap) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return NULL;
}
bm_buffer = bitmap_get_buffer(bitmap);
IDoMethod(dto, PDTM_READPIXELARRAY,
bm_buffer, bm_format, bitmap_get_rowstride(bitmap),
0, 0, c->width, c->height);
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#ifndef __amigaos4__
ami_bitmap_argb_to_rgba(bitmap);
#endif
bitmap_set_opaque(bitmap, bitmap_test_opaque(bitmap));
DisposeDTObject(dto);
adt->dto = NULL;
}
else return NULL;
return bitmap;
}
bool amiga_dt_picture_convert(struct content *c)
{
LOG(("amiga_dt_picture_convert"));
union content_msg_data msg_data;
int width, height;
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char *title;
UBYTE *bm_buffer;
Object *dto;
struct BitMapHeader *bmh;
unsigned int bm_flags = BITMAP_NEW;
int bm_format = PBPAFMT_RGBA;
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char *filetype;
if(dto = amiga_dt_picture_newdtobject((struct amiga_dt_picture_content *)c))
{
if(GetDTAttrs(dto, PDTA_BitMapHeader, &bmh, TAG_DONE))
{
width = (int)bmh->bmh_Width;
height = (int)bmh->bmh_Height;
}
else return false;
}
else return false;
c->width = width;
c->height = height;
c->size = width * height * 4;
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/* set title text */
if(filetype = amiga_dt_picture_datatype(c)) {
title = messages_get_buff("DataTypesTitle",
nsurl_access_leaf(llcache_handle_get_url(c->llcache)),
filetype, c->width, c->height);
if (title != NULL) {
content__set_title(c, title);
free(title);
}
free(filetype);
}
image_cache_add(c, NULL, amiga_dt_picture_cache_convert);
content_set_ready(c);
content_set_done(c);
content_set_status(c, "");
return true;
}
nserror amiga_dt_picture_clone(const struct content *old, struct content **newc)
{
struct content *adt;
nserror error;
LOG(("amiga_dt_picture_clone"));
adt = calloc(1, sizeof(struct content));
if (adt == NULL)
return NSERROR_NOMEM;
error = content__clone(old, adt);
if (error != NSERROR_OK) {
content_destroy(adt);
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(adt) == false) {
content_destroy(adt);
return NSERROR_CLONE_FAILED;
}
}
*newc = adt;
return NSERROR_OK;
}
static void amiga_dt_picture_destroy(struct content *c)
{
struct amiga_dt_picture_content *adt = (struct amiga_dt_picture_content *)c;
DisposeDTObject(adt->dto);
adt->dto = NULL;
image_cache_destroy(c);
}
#endif