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netsurf/atari/plot/plot.c
Vincent Sanders 14e2829489 remove the die API from the core. 
The die() API for abnormal termination does not belong within the core
of netsurf and instead errors are propogated back to the callers.

This is the final part of this change and the API is now only used within
some parts of the frontends
2014-10-26 12:42:53 +00:00

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/*
* Copyright 2010 Ole Loots <ole@monochrom.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/>.
*/
#include <sys/types.h>
#include <stdint.h>
#include <string.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
#include <mt_gem.h>
#include "image/bitmap.h"
#include "utils/log.h"
#include "utils/utf8.h"
#include "utils/utils.h"
#include "desktop/plotters.h"
#include "desktop/mouse.h"
#include "atari/misc.h"
#include "atari/bitmap.h"
#include "utils/nsoption.h"
#include "atari/plot/plot.h"
void vq_scrninfo(VdiHdl handle, short *work_out);
struct s_view {
short x; /* drawing (screen) offset x */
short y; /* drawing (screen) offset y */
short w; /* width of buffer, not in sync with vis_w */
short h; /* height of buffer, not in sync with vis_w */
short vis_x; /* visible rectangle of the screen buffer */
short vis_y; /* coords are relative to plot location */
short vis_w; /* clipped to screen dimensions */
short vis_h; /* visible width */
struct rect abs_clipping; /* The toplevel clipping rectangle */
struct rect clipping; /* actual clipping rectangle */
float scale;
};
/*
* Capture the screen at x,y location
* param self instance
* param x absolute screen coords
* param y absolute screen coords
* param w width
* param h height
*
* This creates an snapshot in RGBA format (NetSurf's native format)
*
*/
static struct bitmap * snapshot_create(int x, int y, int w, int h);
/* Garbage collection of the snapshot routine */
/* this should be called after you are done with the data returned by snapshot_create */
/* don't access the screenshot after you called this function */
static void snapshot_suspend(void);
/* destroy memory used by screenshot */
static void snapshot_destroy(void);
#ifdef WITH_8BPP_SUPPORT
static unsigned short sys_pal[256][3]; /*RGB*/
static unsigned short pal[256][3]; /*RGB*/
static char rgb_lookup[256][4];
short web_std_colors[6] = {0, 51, 102, 153, 204, 255};
unsigned short vdi_web_pal[216][3] = {
{0x000,0x000,0x000}, {0x0c8,0x000,0x000}, {0x190,0x000,0x000}, {0x258,0x000,0x000}, {0x320,0x000,0x000}, {0x3e8,0x000,0x000},
{0x000,0x0c8,0x000}, {0x0c8,0x0c8,0x000}, {0x190,0x0c8,0x000}, {0x258,0x0c8,0x000}, {0x320,0x0c8,0x000}, {0x3e8,0x0c8,0x000},
{0x000,0x190,0x000}, {0x0c8,0x190,0x000}, {0x190,0x190,0x000}, {0x258,0x190,0x000}, {0x320,0x190,0x000}, {0x3e8,0x190,0x000},
{0x000,0x258,0x000}, {0x0c8,0x258,0x000}, {0x190,0x258,0x000}, {0x258,0x258,0x000}, {0x320,0x258,0x000}, {0x3e8,0x258,0x000},
{0x000,0x320,0x000}, {0x0c8,0x320,0x000}, {0x190,0x320,0x000}, {0x258,0x320,0x000}, {0x320,0x320,0x000}, {0x3e8,0x320,0x000},
{0x000,0x3e8,0x000}, {0x0c8,0x3e8,0x000}, {0x190,0x3e8,0x000}, {0x258,0x3e8,0x000}, {0x320,0x3e8,0x000}, {0x3e8,0x3e8,0x000},
{0x000,0x000,0x0c8}, {0x0c8,0x000,0x0c8}, {0x190,0x000,0x0c8}, {0x258,0x000,0x0c8}, {0x320,0x000,0x0c8}, {0x3e8,0x000,0x0c8},
{0x000,0x0c8,0x0c8}, {0x0c8,0x0c8,0x0c8}, {0x190,0x0c8,0x0c8}, {0x258,0x0c8,0x0c8}, {0x320,0x0c8,0x0c8}, {0x3e8,0x0c8,0x0c8},
{0x000,0x190,0x0c8}, {0x0c8,0x190,0x0c8}, {0x190,0x190,0x0c8}, {0x258,0x190,0x0c8}, {0x320,0x190,0x0c8}, {0x3e8,0x190,0x0c8},
{0x000,0x258,0x0c8}, {0x0c8,0x258,0x0c8}, {0x190,0x258,0x0c8}, {0x258,0x258,0x0c8}, {0x320,0x258,0x0c8}, {0x3e8,0x258,0x0c8},
{0x000,0x320,0x0c8}, {0x0c8,0x320,0x0c8}, {0x190,0x320,0x0c8}, {0x258,0x320,0x0c8}, {0x320,0x320,0x0c8}, {0x3e8,0x320,0x0c8},
{0x000,0x3e8,0x0c8}, {0x0c8,0x3e8,0x0c8}, {0x190,0x3e8,0x0c8}, {0x258,0x3e8,0x0c8}, {0x320,0x3e8,0x0c8}, {0x3e8,0x3e8,0x0c8},
{0x000,0x000,0x190}, {0x0c8,0x000,0x190}, {0x190,0x000,0x190}, {0x258,0x000,0x190}, {0x320,0x000,0x190}, {0x3e8,0x000,0x190},
{0x000,0x0c8,0x190}, {0x0c8,0x0c8,0x190}, {0x190,0x0c8,0x190}, {0x258,0x0c8,0x190}, {0x320,0x0c8,0x190}, {0x3e8,0x0c8,0x190},
{0x000,0x190,0x190}, {0x0c8,0x190,0x190}, {0x190,0x190,0x190}, {0x258,0x190,0x190}, {0x320,0x190,0x190}, {0x3e8,0x190,0x190},
{0x000,0x258,0x190}, {0x0c8,0x258,0x190}, {0x190,0x258,0x190}, {0x258,0x258,0x190}, {0x320,0x258,0x190}, {0x3e8,0x258,0x190},
{0x000,0x320,0x190}, {0x0c8,0x320,0x190}, {0x190,0x320,0x190}, {0x258,0x320,0x190}, {0x320,0x320,0x190}, {0x3e8,0x320,0x190},
{0x000,0x3e8,0x190}, {0x0c8,0x3e8,0x190}, {0x190,0x3e8,0x190}, {0x258,0x3e8,0x190}, {0x320,0x3e8,0x190}, {0x3e8,0x3e8,0x190},
{0x000,0x000,0x258}, {0x0c8,0x000,0x258}, {0x190,0x000,0x258}, {0x258,0x000,0x258}, {0x320,0x000,0x258}, {0x3e8,0x000,0x258},
{0x000,0x0c8,0x258}, {0x0c8,0x0c8,0x258}, {0x190,0x0c8,0x258}, {0x258,0x0c8,0x258}, {0x320,0x0c8,0x258}, {0x3e8,0x0c8,0x258},
{0x000,0x190,0x258}, {0x0c8,0x190,0x258}, {0x190,0x190,0x258}, {0x258,0x190,0x258}, {0x320,0x190,0x258}, {0x3e8,0x190,0x258},
{0x000,0x258,0x258}, {0x0c8,0x258,0x258}, {0x190,0x258,0x258}, {0x258,0x258,0x258}, {0x320,0x258,0x258}, {0x3e8,0x258,0x258},
{0x000,0x320,0x258}, {0x0c8,0x320,0x258}, {0x190,0x320,0x258}, {0x258,0x320,0x258}, {0x320,0x320,0x258}, {0x3e8,0x320,0x258},
{0x000,0x3e8,0x258}, {0x0c8,0x3e8,0x258}, {0x190,0x3e8,0x258}, {0x258,0x3e8,0x258}, {0x320,0x3e8,0x258}, {0x3e8,0x3e8,0x258},
{0x000,0x000,0x320}, {0x0c8,0x000,0x320}, {0x190,0x000,0x320}, {0x258,0x000,0x320}, {0x320,0x000,0x320}, {0x3e8,0x000,0x320},
{0x000,0x0c8,0x320}, {0x0c8,0x0c8,0x320}, {0x190,0x0c8,0x320}, {0x258,0x0c8,0x320}, {0x320,0x0c8,0x320}, {0x3e8,0x0c8,0x320},
{0x000,0x190,0x320}, {0x0c8,0x190,0x320}, {0x190,0x190,0x320}, {0x258,0x190,0x320}, {0x320,0x190,0x320}, {0x3e8,0x190,0x320},
{0x000,0x258,0x320}, {0x0c8,0x258,0x320}, {0x190,0x258,0x320}, {0x258,0x258,0x320}, {0x320,0x258,0x320}, {0x3e8,0x258,0x320},
{0x000,0x320,0x320}, {0x0c8,0x320,0x320}, {0x190,0x320,0x320}, {0x258,0x320,0x320}, {0x320,0x320,0x320}, {0x3e8,0x320,0x320},
{0x000,0x3e8,0x320}, {0x0c8,0x3e8,0x320}, {0x190,0x3e8,0x320}, {0x258,0x3e8,0x320}, {0x320,0x3e8,0x320}, {0x3e8,0x3e8,0x320},
{0x000,0x000,0x3e8}, {0x0c8,0x000,0x3e8}, {0x190,0x000,0x3e8}, {0x258,0x000,0x3e8}, {0x320,0x000,0x3e8}, {0x3e8,0x000,0x3e8},
{0x000,0x0c8,0x3e8}, {0x0c8,0x0c8,0x3e8}, {0x190,0x0c8,0x3e8}, {0x258,0x0c8,0x3e8}, {0x320,0x0c8,0x3e8}, {0x3e8,0x0c8,0x3e8},
{0x000,0x190,0x3e8}, {0x0c8,0x190,0x3e8}, {0x190,0x190,0x3e8}, {0x258,0x190,0x3e8}, {0x320,0x190,0x3e8}, {0x3e8,0x190,0x3e8},
{0x000,0x258,0x3e8}, {0x0c8,0x258,0x3e8}, {0x190,0x258,0x3e8}, {0x258,0x258,0x3e8}, {0x320,0x258,0x3e8}, {0x3e8,0x258,0x3e8},
{0x000,0x320,0x3e8}, {0x0c8,0x320,0x3e8}, {0x190,0x320,0x3e8}, {0x258,0x320,0x3e8}, {0x320,0x320,0x3e8}, {0x3e8,0x320,0x3e8},
{0x000,0x3e8,0x3e8}, {0x0c8,0x3e8,0x3e8}, {0x190,0x3e8,0x3e8}, {0x258,0x3e8,0x3e8}, {0x320,0x3e8,0x3e8}, {0x3e8,0x3e8,0x3e8}
};
#endif
/* Error code translations: */
static const char * plot_error_codes[] = {
"None",
"ERR_BUFFERSIZE_EXCEEDS_SCREEN",
"ERR_NO_MEM",
"ERR_PLOTTER_NOT_AVAILABLE"
};
FONT_PLOTTER fplotter = NULL;
extern short vdih;
/* temp buffer for bitmap conversion: */
static void * buf_packed;
static int size_buf_packed;
/* temp buffer for bitmap conversion: */
void * buf_planar;
int size_buf_planar;
/* buffer for plot operations that require device format, */
/* currently used for transparent mfdb blits and snapshots: */
static MFDB buf_scr;
static int size_buf_scr;
/* buffer for std form, used during 8bpp snapshot */
MFDB buf_std;
int size_buf_std;
struct bitmap * buf_scr_compat;
/* intermediate bitmap format */
static HermesFormat vfmt;
/* no screen format here, hermes may not suitable for it */
/* netsurf source bitmap format */
static HermesFormat nsfmt;
struct s_vdi_sysinfo vdi_sysinfo;
/* bit depth of framebuffers: */
static int atari_plot_bpp_virt;
static struct s_view view;
static HermesHandle hermes_pal_h; /* hermes palette handle */
static HermesHandle hermes_cnv_h; /* hermes converter instance handle */
static HermesHandle hermes_res_h;
static short prev_vdi_clip[4];
static struct bitmap snapshot;
VdiHdl atari_plot_vdi_handle = -1;
unsigned long atari_plot_flags;
unsigned long atari_font_flags;
typedef bool (*bitmap_convert_fnc)( struct bitmap * img, int x, int y,
GRECT * clip, uint32_t bg, uint32_t flags, MFDB *out );
static bitmap_convert_fnc bitmap_convert;
const char* plot_err_str(int i)
{
return(plot_error_codes[abs(i)]);
}
/**
* Set line drawing color by passing netsurf XBGR "colour" type.
*
* \param vdih The vdi handle
* \param cin The netsurf colour value
*/
inline static void vsl_rgbcolor(short vdih, colour cin)
{
#ifdef WITH_8BPP_SUPPORT
if( vdi_sysinfo.scr_bpp > 8 ) {
#endif
//unsigned short c[4];
RGB1000 c;
rgb_to_vdi1000( (unsigned char*)&cin, &c);
vs_color(vdih, OFFSET_CUSTOM_COLOR, (unsigned short*)&c);
vsl_color(vdih, OFFSET_CUSTOM_COLOR);
#ifdef WITH_8BPP_SUPPORT
} else {
if( vdi_sysinfo.scr_bpp >= 4 ){
vsl_color(vdih, RGB_TO_VDI(cin));
}
else
vsl_color(vdih, BLACK);
}
#endif
}
/**
* Set fill color by passing netsurf XBGR "colour" type.
*
* \param vdih The vdi handle
* \param cin The netsurf colour value
*/
inline static void vsf_rgbcolor(short vdih, colour cin)
{
#ifdef WITH_8BPP_SUPPORT
if( vdi_sysinfo.scr_bpp > 8 ) {
#endif
RGB1000 c;
rgb_to_vdi1000( (unsigned char*)&cin, &c);
vs_color( vdih, OFFSET_CUSTOM_COLOR, (unsigned short*)&c);
vsf_color( vdih, OFFSET_CUSTOM_COLOR );
#ifdef WITH_8BPP_SUPPORT
} else {
if( vdi_sysinfo.scr_bpp >= 4 ){
vsf_color( vdih, RGB_TO_VDI(cin) );
}
else
vsf_color( vdih, WHITE );
}
#endif
}
/**
* Get current visible coords
*/
inline static void plot_get_visible_grect(GRECT * out)
{
out->g_x = view.vis_x;
out->g_y = view.vis_y;
out->g_w = view.vis_w;
out->g_h = view.vis_h;
}
/* calculate visible area of framebuffer in coords relative to framebuffer */
/* position */
/* result: */
/* this function should calculates an rectangle relative to the plot origin*/
/* and size. */
/* If the ploter coords do not fall within the screen region, */
/* all values of the region are set to zero. */
inline static void update_visible_rect(void)
{
GRECT screen; // dimensions of the screen
GRECT frame; // dimensions of the drawing area
GRECT common; // dimensions of intersection of both
screen.g_x = 0;
screen.g_y = 0;
screen.g_w = vdi_sysinfo.scr_w;
screen.g_h = vdi_sysinfo.scr_h;
common.g_x = frame.g_x = view.x;
common.g_y = frame.g_y = view.y;
common.g_w = frame.g_w = view.w;
common.g_h = frame.g_h = view.h;
if (rc_intersect(&screen, &common)) {
view.vis_w = common.g_w;
view.vis_h = common.g_h;
if (view.x < screen.g_x)
view.vis_x = frame.g_w - common.g_w;
else
view.vis_x = 0;
if (view.y <screen.g_y)
view.vis_y = frame.g_h - common.g_h;
else
view.vis_y = 0;
} else {
view.vis_w = view.vis_h = 0;
view.vis_x = view.vis_y = 0;
}
}
/* Returns the visible parts of the box (relative coords within framebuffer),*/
/* relative to screen coords (normally starting at 0,0 ) */
inline static bool fbrect_to_screen(GRECT box, GRECT * ret)
{
GRECT out, vis, screen;
screen.g_x = 0;
screen.g_y = 0;
screen.g_w = vdi_sysinfo.scr_w;
screen.g_h = vdi_sysinfo.scr_h;
/* get visible region: */
vis.g_x = view.x;
vis.g_y = view.y;
vis.g_w = view.w;
vis.g_h = view.h;
if ( !rc_intersect( &screen, &vis ) ) {
return( false );
}
vis.g_x = view.w - vis.g_w;
vis.g_y = view.h - vis.g_h;
/* clip box to visible region: */
if( !rc_intersect(&vis, &box) ) {
return( false );
}
out.g_x = box.g_x + view.x;
out.g_y = box.g_y + view.y;
out.g_w = box.g_w;
out.g_h = box.g_h;
*ret = out;
return ( true );
}
/* copy an rectangle from the plot buffer to screen */
/* because this is an on-screen plotter, this is an screen to screen copy. */
bool plot_copy_rect(GRECT src, GRECT dst)
{
MFDB devmf;
MFDB scrmf;
short pxy[8];
GRECT vis;
/* clip to visible rect, only needed for onscreen renderer: */
plot_get_visible_grect(&vis );
if( !rc_intersect(&vis, &src) )
return(true);
if( !rc_intersect(&vis, &dst) )
return(true);
src.g_x = view.x + src.g_x;
src.g_y = view.y + src.g_y;
dst.g_x = view.x + dst.g_x;
dst.g_y = view.y + dst.g_y;
devmf.fd_addr = NULL;
devmf.fd_w = src.g_w;
devmf.fd_h = src.g_h;
devmf.fd_wdwidth = 0;
devmf.fd_stand = 0;
devmf.fd_nplanes = 0;
devmf.fd_r1 = devmf.fd_r2 = devmf.fd_r3 = 0;
scrmf.fd_addr = NULL;
scrmf.fd_w = dst.g_w;
scrmf.fd_h = dst.g_h;
scrmf.fd_wdwidth = 0 ;
scrmf.fd_stand = 0;
scrmf.fd_nplanes = 0;
scrmf.fd_r1 = scrmf.fd_r2 = scrmf.fd_r3 = 0;
pxy[0] = src.g_x;
pxy[1] = src.g_y;
pxy[2] = pxy[0] + src.g_w-1;
pxy[3] = pxy[1] + src.g_h-1;
pxy[4] = dst.g_x;
pxy[5] = dst.g_y;
pxy[6] = pxy[4] + dst.g_w-1;
pxy[7] = pxy[5] + dst.g_h-1;
plot_lock();
vro_cpyfm( atari_plot_vdi_handle, S_ONLY, (short*)&pxy, &devmf, &scrmf);
plot_unlock();
return(true);
}
/**
* Fill the screen info structure.
*
*/
static struct s_vdi_sysinfo * read_vdi_sysinfo(short vdih, struct s_vdi_sysinfo * info) {
unsigned long cookie_EdDI=0;
short out[300];
memset( info, 0, sizeof(struct s_vdi_sysinfo) );
info->vdi_handle = vdih;
if ( tos_getcookie(C_EdDI, &cookie_EdDI) == C_NOTFOUND ) {
info->EdDiVersion = 0;
} else {
info->EdDiVersion = EdDI_version( (void *)cookie_EdDI );
}
memset( &out, 0, sizeof(short)*300 );
vq_extnd( vdih, 0, (short*)&out );
info->scr_w = out[0]+1;
info->scr_h = out[1]+1;
if( out[39] == 2 ) {
info->scr_bpp = 1;
info->colors = out[39];
} else {
info->colors = out[39];
}
memset( &out, 0, sizeof(short)*300 );
vq_extnd( vdih, 1, (short*)&out );
info->scr_bpp = out[4];
info->maxpolycoords = out[14];
info->maxintin = out[15];
if( out[30] & 1 ) {
info->rasterscale = true;
} else {
info->rasterscale = false;
}
switch( info->scr_bpp ) {
case 8:
info->pixelsize=1;
break;
case 15:
case 16:
info->pixelsize=2;
break;
case 24:
info->pixelsize=3;
break;
case 32:
info->pixelsize=4;
break;
case 64:
info->pixelsize=8;
break;
default:
info->pixelsize=1;
break;
}
info->pitch = info->scr_w * info->pixelsize;
info->vdiformat = ( (info->scr_bpp <= 8) ? VDI_FORMAT_INTER : VDI_FORMAT_PACK);
info->screensize = ( info->scr_w * info->pixelsize ) * info->scr_h;
if( info->EdDiVersion >= EDDI_10 ) {
memset( &out, 0, sizeof(short)*300 );
vq_scrninfo(vdih, (short*)&out);
info->vdiformat = out[0];
info->clut = out[1];
info->scr_bpp = out[2];
info->hicolors = *((unsigned long*) &out[3]);
if( info->EdDiVersion >= EDDI_11 ) {
info->pitch = out[5];
info->screen = (void *) *((unsigned long *) &out[6]);
}
switch( info->clut ) {
case VDI_CLUT_HARDWARE: {
}
break;
case VDI_CLUT_SOFTWARE: {
int component; /* red, green, blue, alpha, overlay */
int num_bit;
unsigned short *tmp_p;
/* We can build masks with info here */
tmp_p = (unsigned short *) &out[16];
for (component=0; component<5; component++) {
for (num_bit=0; num_bit<16; num_bit++) {
unsigned short val;
val = *tmp_p++;
if (val == 0xffff) {
continue;
}
switch(component) {
case 0:
info->mask_r |= 1<< val;
break;
case 1:
info->mask_g |= 1<< val;
break;
case 2:
info->mask_b |= 1<< val;
break;
case 3:
info->mask_a |= 1<< val;
break;
}
}
}
}
/* Remove lower green bits for Intel endian screen */
if ((info->mask_g == ((7<<13)|3)) || (info->mask_g == ((7<<13)|7))) {
info->mask_g &= ~(7<<13);
}
break;
case VDI_CLUT_NONE:
break;
}
}
}
/*
Convert an RGB color to an VDI Color
*/
inline void rgb_to_vdi1000(unsigned char * in, RGB1000 *out)
{
double r = ((double)in[3]/255); /* prozentsatz red */
double g = ((double)in[2]/255); /* prozentsatz green */
double b = ((double)in[1]/255); /* prozentsatz blue */
out->red = 1000 * r + 0.5;
out->green = 1000 * g + 0.5;
out->blue = 1000 * b + 0.5;
return;
}
inline void vdi1000_to_rgb(unsigned short * in, unsigned char * out)
{
double r = ((double)in[0]/1000); /* prozentsatz red */
double g = ((double)in[1]/1000); /* prozentsatz green */
double b = ((double)in[2]/1000); /* prozentsatz blue */
out[2] = 255 * r + 0.5;
out[1] = 255 * g + 0.5;
out[0] = 255 * b + 0.5;
return;
}
#ifdef WITH_8BPP_SUPPORT
/**
* Set pixel within an 8 bit VDI standard bitmap.
*/
inline static void set_stdpx( MFDB * dst, int wdplanesz, int x, int y, unsigned char val )
{
short * buf;
short whichbit = (1<<(15-(x%16)));
buf = dst->fd_addr;
buf += ((dst->fd_wdwidth*(y))+(x>>4));
*buf = (val&1) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<1)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<2)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<3)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<4)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<5)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<6)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
buf += wdplanesz;
*buf = (val&(1<<7)) ? ((*buf)|(whichbit)) : ((*buf)&~(whichbit));
}
/**
* Read pixel from an 8 bit VDI standard bitmap.
*/
inline static unsigned char get_stdpx(MFDB * dst, int wdplanesz, int x, int y)
{
unsigned char ret=0;
short * buf;
short whichbit = (1<<(15-(x%16)));
buf = dst->fd_addr;
buf += ((dst->fd_wdwidth*(y))+(x>>4));
if( *buf & whichbit )
ret |= 1;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 2;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 4;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 8;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 16;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 32;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 64;
buf += wdplanesz;
if( *buf & whichbit )
ret |= 128;
return( ret );
}
/*
Convert an RGB color into an index into the 216 colors web pallette
*/
inline short rgb_to_666_index(unsigned char r, unsigned char g, unsigned char b)
{
short i;
unsigned char rgb[3] = {r,g,b};
unsigned char tval[3];
int diff_a, diff_b, diff_c;
diff_a = abs(r-g);
diff_b = abs(r-b);
diff_c = abs(r-b);
if( diff_a < 2 && diff_b < 2 && diff_c < 2 ) {
if( (r!=0XFF) && (g!=0XFF) && (b!=0XFF) ) {
if( ((r&0xF0)>>4) != 0 )
//printf("conv gray: %x -> %d\n", ((r&0xF0)>>4) , (OFFSET_CUST_PAL) + ((r&0xF0)>>4) );
return( (OFFSET_CUST_PAL - OFFSET_WEB_PAL) + ((r&0xF0)>>4) );
}
}
/* convert each 8bit color to 6bit web color: */
for( i=0; i<3; i++) {
if(0 == rgb[i] % web_std_colors[1] ) {
tval[i] = rgb[i] / web_std_colors[1];
} else {
int pos = ((short)rgb[i] / web_std_colors[1]);
if( abs(rgb[i] - web_std_colors[pos]) > abs(rgb[i] - web_std_colors[pos+1]) )
tval[i] = pos+1;
else
tval[i] = pos;
}
}
return(tval[2]*36+tval[1]*6+tval[0]);
}
#endif
static void dump_vdi_info(short vdih)
{
struct s_vdi_sysinfo temp;
read_vdi_sysinfo( vdih, &temp );
printf("struct s_vdi_sysinfo {\n");
printf(" short vdi_handle: %d\n", temp.vdi_handle);
printf(" short scr_w: %d \n", temp.scr_w);
printf(" short scr_h: %d\n", temp.scr_h);
printf(" short scr_bpp: %d\n", temp.scr_bpp);
printf(" int colors: %d\n", temp.colors);
printf(" ulong hicolors: %d\n", temp.hicolors);
printf(" short pixelsize: %d\n", temp.pixelsize);
printf(" unsigned short pitch: %d\n", temp.pitch);
printf(" unsigned short vdiformat: %d\n", temp.vdiformat);
printf(" unsigned short clut: %d\n", temp.clut);
printf(" void * screen: 0x0%p\n", temp.screen);
printf(" unsigned long screensize: %d\n", temp.screensize);
printf(" unsigned long mask_r: 0x0%08x\n", temp.mask_r);
printf(" unsigned long mask_g: 0x0%08x\n", temp.mask_g);
printf(" unsigned long mask_b: 0x0%08x\n", temp.mask_b);
printf(" unsigned long mask_a: 0x0%08x\n", temp.mask_a);
printf(" short maxintin: %d\n", temp.maxintin);
printf(" short maxpolycoords: %d\n", temp.maxpolycoords);
printf(" unsigned long EdDiVersion: 0x0%03x\n", temp.EdDiVersion);
printf(" unsigned short rasterscale: 0x%2x\n", temp.rasterscale);
printf("};\n");
}
/**
* Create an snapshot of the screen image in device format.
*/
static MFDB * snapshot_create_native_mfdb(int x, int y, int w, int h)
{
MFDB scr;
short pxy[8];
/* allocate memory for the snapshot */
{
int scr_stride = MFDB_STRIDE( w );
int scr_size = ( ((scr_stride >> 3) * h) * vdi_sysinfo.scr_bpp );
if(size_buf_scr == 0 ){
/* init screen mfdb */
buf_scr.fd_addr = malloc( scr_size );
size_buf_scr = scr_size;
} else {
if( scr_size >size_buf_scr ) {
buf_scr.fd_addr = realloc(
buf_scr.fd_addr, scr_size
);
size_buf_scr = scr_size;
}
}
if(buf_scr.fd_addr == NULL ) {
size_buf_scr = 0;
return( NULL );
}
buf_scr.fd_nplanes = vdi_sysinfo.scr_bpp;
buf_scr.fd_w = scr_stride;
buf_scr.fd_h = h;
buf_scr.fd_wdwidth = scr_stride >> 4;
assert(buf_scr.fd_addr != NULL );
}
init_mfdb( 0, w, h, 0, &scr );
pxy[0] = x;
pxy[1] = y;
pxy[2] = pxy[0] + w-1;
pxy[3] = pxy[1] + h-1;
pxy[4] = 0;
pxy[5] = 0;
pxy[6] = w-1;
pxy[7] = h-1;
vro_cpyfm(
atari_plot_vdi_handle, S_ONLY, (short*)&pxy,
&scr, &buf_scr
);
return( &buf_scr );
}
/**
* Create an snapshot of the screen image in VDI standard format (8 bit).
*/
static MFDB * snapshot_create_std_mfdb(int x, int y, int w, int h)
{
/* allocate memory for the snapshot */
{
int scr_stride = MFDB_STRIDE( w );
int scr_size = ( ((scr_stride >> 3) * h) * vdi_sysinfo.scr_bpp );
if(size_buf_std == 0 ){
/* init screen mfdb */
buf_std.fd_addr = malloc( scr_size );
size_buf_std = scr_size;
} else {
if( scr_size >size_buf_std ) {
buf_std.fd_addr = realloc(
buf_std.fd_addr, scr_size
);
size_buf_std = scr_size;
}
}
if(buf_std.fd_addr == NULL ) {
size_buf_std = 0;
return( NULL );
}
buf_std.fd_nplanes = 8;
buf_std.fd_w = scr_stride;
buf_std.fd_h = h;
buf_std.fd_stand = 1;
buf_std.fd_wdwidth = scr_stride >> 4;
assert(buf_std.fd_addr != NULL );
}
MFDB * native = snapshot_create_native_mfdb(x,y,w,h );
assert( native );
vr_trnfm(atari_plot_vdi_handle, native, &buf_std);
return( &buf_std );
}
/*
* Create an snapshot of the screen in netsurf ABGR format
*/
static struct bitmap * snapshot_create(int x, int y, int w, int h)
{
int err;
MFDB * native;
// uint32_t start = clock();
// FIXME: This can be optimized a lot.
// 1. do not copy the snapshot to the bitmap buffer
// when the format of screen and bitmap equals.
// just point the bitmap to the native mfdb.
// 2. if we have eddi 1.1, we could optimize that further
// make snapshot_create_native_mfdb just returning a pointer
// to the screen.
native = snapshot_create_native_mfdb(x, y, w, h );
if(vfmt.bits == 32 )
goto no_copy;
/* allocate buffer for result bitmap: */
if(buf_scr_compat == NULL ) {
buf_scr_compat = bitmap_create(w, h, 0);
} else {
buf_scr_compat = bitmap_realloc( w, h,
buf_scr_compat->bpp,
w *buf_scr_compat->bpp,
BITMAP_GROW,
buf_scr_compat );
}
/* convert screen buffer to ns format: */
err = Hermes_ConverterRequest( hermes_cnv_h,
&vfmt,
&nsfmt
);
assert( err != 0 );
err = Hermes_ConverterCopy( hermes_cnv_h,
native->fd_addr,
0, /* x src coord of top left in pixel coords */
0, /* y src coord of top left in pixel coords */
w, h,
native->fd_w * vdi_sysinfo.pixelsize, /* stride as bytes */
buf_scr_compat->pixdata,
0, /* x dst coord of top left in pixel coords */
0, /* y dst coord of top left in pixel coords */
w, h,
bitmap_get_rowstride(buf_scr_compat) /* stride as bytes */
);
assert( err != 0 );
return( (struct bitmap * )buf_scr_compat );
no_copy:
snapshot.width = w;
snapshot.height = h;
snapshot.pixdata = native->fd_addr;
snapshot.native = *native;
snapshot.rowstride = MFDB_STRIDE( w )*4;
uint32_t row, col;
for (row = 0; row<(uint32_t)h; row++) {
// fd_w matches stride!
uint32_t *rowptr = ((uint32_t*)native->fd_addr + ((row*native->fd_w)));
for (col=0; col<(uint32_t)w; col++) {
*(rowptr+col) = (*(rowptr+col)<<8);
}
}
return( &snapshot );
}
/**
* Notify the snapshot interface that the last snapshot is no longer in use.
*/
static void snapshot_suspend(void)
{
if(size_buf_scr > CONV_KEEP_LIMIT ) {
buf_scr.fd_addr = realloc(
buf_scr.fd_addr, CONV_KEEP_LIMIT
);
if(buf_scr.fd_addr != NULL ) {
size_buf_scr = CONV_KEEP_LIMIT;
} else {
size_buf_scr = 0;
}
}
#ifdef WITH_8BPP_SUPPORT
if(size_buf_std > CONV_KEEP_LIMIT ) {
buf_std.fd_addr = realloc(
buf_std.fd_addr, CONV_KEEP_LIMIT
);
if(buf_std.fd_addr != NULL ) {
size_buf_std = CONV_KEEP_LIMIT;
} else {
size_buf_std = 0;
}
}
#endif
if(buf_scr_compat != NULL ) {
size_t bs = bitmap_buffer_size(buf_scr_compat );
if( bs > CONV_KEEP_LIMIT ) {
int w = 0;
int h = 1;
w = (CONV_KEEP_LIMIT /buf_scr_compat->bpp);
assert( CONV_KEEP_LIMIT == w*buf_scr_compat->bpp );
buf_scr_compat = bitmap_realloc( w, h,
buf_scr_compat->bpp,
CONV_KEEP_LIMIT, BITMAP_SHRINK,buf_scr_compat
);
}
}
}
/**
* Shut down the snapshot interface.
*/
static void snapshot_destroy(void)
{
free(buf_scr.fd_addr);
if( buf_scr_compat != NULL) {
bitmap_destroy(buf_scr_compat);
}
buf_scr.fd_addr = NULL;
buf_scr_compat = NULL;
#ifdef WITH_8BPP_SUPPORT
free(buf_std.fd_addr);
buf_std.fd_addr = NULL;
#endif
}
inline static uint32_t ablend(uint32_t pixel, uint32_t scrpixel)
{
int opacity = pixel & 0xFF;
int transp = 0x100 - opacity;
uint32_t rb, g;
pixel >>= 8;
scrpixel >>= 8;
rb = ((pixel & 0xFF00FF) * opacity +
(scrpixel & 0xFF00FF) * transp) >> 8;
g = ((pixel & 0x00FF00) * opacity +
(scrpixel & 0x00FF00) * transp) >> 8;
return ((rb & 0xFF00FF) | (g & 0xFF00)) << 8;
}
/*
Alpha blends an image, using one pixel as the background.
The bitmap receives the result.
*/
inline static bool ablend_pixel(struct bitmap * img, uint32_t bg, GRECT * clip)
{
uint32_t * imgrow;
int img_x, img_y, img_stride;
img_stride= bitmap_get_rowstride(img);
for( img_y = 0; img_y < clip->g_h; img_y++) {
imgrow = (uint32_t *)(img->pixdata + (img_stride * img_y));
for( img_x = 0; img_x < clip->g_w; img_x++ ) {
imgrow[img_x] = ablend( imgrow[img_x], bg );
}
}
return(true);
}
/*
Aplha blends the foreground image (img) onto the
background images (bg). The background receives the blended
image pixels.
*/
inline static bool ablend_bitmap( struct bitmap * img, struct bitmap * bg,
GRECT * img_clip, GRECT * bg_clip )
{
uint32_t * imgrow;
uint32_t * screenrow;
int img_x, img_y, bg_x, bg_y, img_stride, bg_stride;
bg_clip = bg_clip;
img_stride= bitmap_get_rowstride(img);
bg_stride = bitmap_get_rowstride(bg);
for( img_y = img_clip->g_y, bg_y = 0; bg_y < img_clip->g_h; bg_y++, img_y++) {
imgrow = (uint32_t *)(img->pixdata + (img_stride * img_y));
screenrow = (uint32_t *)(bg->pixdata + (bg_stride * bg_y));
for( img_x = img_clip->g_x, bg_x = 0; bg_x < img_clip->g_w; bg_x++, img_x++ ) {
// when the pixel isn't fully transparent,...:
if( (imgrow[img_x] & 0x0FF) != 0 ){
screenrow[bg_x] = ablend( imgrow[img_x], screenrow[bg_x]);
}
// FIXME, maybe this loop would be faster??:
// ---
//if( (imgrow[img_x] & 0x0FF) != 0xFF ){
// imgrow[bg_x] = ablend( imgrow[img_x], screenrow[bg_x]);
//}
// or maybe even this???
// ---
//if( (imgrow[img_x] & 0x0FF) == 0xFF ){
// screenrow[bg_x] = imgrow[img_x];
//} else if( (imgrow[img_x] & 0x0FF) != 0x00 ) {
// screenrow[bg_x] = ablend( imgrow[img_x], screenrow[bg_x]);
//}
}
}
return(false);
}
#ifdef WITH_8BPP_SUPPORT
/**
* Convert an bitmap to an 8 bit device dependant MFDB
* \param img the bitmap (only tested with 32bit bitmaps)
* \param x screen coord of the background
* \param y screen coord of the background
* \param clip the region of the image that get's converted
* \param bg the background used for cheap transparency
* \param flags
* \param out receives the converted bitmap (still owned by the plot API)
*
*/
static bool bitmap_convert_8(struct bitmap * img, int x,
int y, GRECT * clip, uint32_t bg, uint32_t flags,
MFDB *out )
{
MFDB native;
MFDB stdform;
int dststride; /* stride of dest. image */
int dstsize; /* size of dest. in byte */
int bw, bh;
struct bitmap * scrbuf = NULL;
bool cache = ( flags & BITMAPF_BUFFER_NATIVE );
bool opaque = bitmap_get_opaque( img );
if( opaque == false ){
if( ( (atari_plot_flags & PLOT_FLAG_TRANS) == 0)
&&
((flags & (BITMAPF_MONOGLYPH|BITMAPF_BUFFER_NATIVE))==0) ){
opaque = true;
}
}
assert( clip->g_h > 0 );
assert( clip->g_w > 0 );
bw = bitmap_get_width( img );
bh = bitmap_get_height( img );
// The converted bitmap can be saved for subsequent blits, when
// the bitmap is fully opaque
if( (opaque == true) || (flags & BITMAPF_BUFFER_NATIVE ) ){
if( img->converted == true ){
*out = img->native;
return( 0 );
}
if( ( flags & BITMAPF_MONOGLYPH ) == 0 ){
cache = true;
}
}
if( ( flags & BITMAPF_MONOGLYPH ) != 0 ){
assert(cache == false);
}
/* (re)allocate buffer for out image: */
/* altough the buffer is named "buf_packed" on 8bit systems */
/* it's not... */
if( cache == false ){
// the size of the output will match the size of the clipping:
dststride = MFDB_STRIDE( clip->g_w );
dstsize = ( ((dststride >> 3) * clip->g_h) * atari_plot_bpp_virt);
if( dstsize > size_buf_packed) {
int blocks = (dstsize / (CONV_BLOCK_SIZE-1))+1;
if( buf_packed == NULL )
buf_packed =(void*)malloc( blocks * CONV_BLOCK_SIZE);
else
buf_packed =(void*)realloc(buf_packed,blocks * CONV_BLOCK_SIZE);
assert( buf_packed );
if( buf_packed == NULL ) {
return( 0-ERR_NO_MEM );
}
size_buf_packed = blocks * CONV_BLOCK_SIZE;
}
native.fd_addr = buf_packed;
}
else {
// the output image will be completly saved, so size of the output
// image will match the input image size.
dststride = MFDB_STRIDE( bw );
dstsize = ( ((dststride >> 3) * bh) * atari_plot_bpp_virt);
assert( out->fd_addr == NULL );
native.fd_addr = (void*)malloc( dstsize );
if (native.fd_addr == NULL){
if (scrbuf != NULL)
bitmap_destroy(scrbuf);
return( 0-ERR_NO_MEM );
}
}
/*
on 8 bit systems we must convert the TC (ABGR) image
to vdi standard format. ( only tested for 256 colors )
and then convert it to native format with v_trnfm()
*/
// realloc mem for stdform
if( opaque == false ){
// point image to snapshot buffer, otherwise allocate mem
MFDB * bg = snapshot_create_std_mfdb(x, y, clip->g_w, clip->g_h);
stdform.fd_addr = bg->fd_addr;
bh = clip->g_h;
} else {
if( dstsize > size_buf_planar) {
int blocks = (dstsize / (CONV_BLOCK_SIZE-1))+1;
if( buf_planar == NULL )
buf_planar =(void*)malloc( blocks * CONV_BLOCK_SIZE );
else
buf_planar =(void*)realloc(buf_planar, blocks * CONV_BLOCK_SIZE);
assert(buf_planar);
if( buf_planar == NULL ) {
return( 0-ERR_NO_MEM );
}
size_buf_planar = blocks * CONV_BLOCK_SIZE;
}
stdform.fd_addr = buf_planar;
}
stdform.fd_w = dststride;
stdform.fd_h = bh;
stdform.fd_wdwidth = dststride >> 4;
stdform.fd_stand = 1;
stdform.fd_nplanes = (short)atari_plot_bpp_virt;
stdform.fd_r1 = stdform.fd_r2 = stdform.fd_r3 = 0;
int img_stride = bitmap_get_rowstride(img);
uint32_t prev_pixel = 0x12345678; //TODO: check for collision in first pixel
unsigned long col = 0;
unsigned char val = 0;
uint32_t * row;
uint32_t pixel;
int wdplanesize = stdform.fd_wdwidth*stdform.fd_h;
if( opaque == false ){
// apply transparency and convert to vdi std format
unsigned long bgcol = 0;
unsigned char prev_col = 0;
for( y=0; y<clip->g_h; y++ ){
row = (uint32_t *)(img->pixdata + (img_stride * (y+clip->g_y)));
for( x=0; x<clip->g_w; x++ ){
pixel = row[x+clip->g_x];
if( (pixel&0xFF) == 0 ){
continue;
}
if( (pixel&0xFF) < 0xF0 ){
col = get_stdpx( &stdform, wdplanesize,x,y );
if( (col != prev_col) || (y == 0) )
bgcol = (((rgb_lookup[col][2] << 16) | (rgb_lookup[col][1] << 8) | (rgb_lookup[col][0]))<<8);
if( prev_col != col || prev_pixel != pixel ){
prev_col = col;
pixel = ablend( pixel, bgcol );
prev_pixel = pixel;
pixel = pixel >> 8;
/* convert pixel value to vdi color index: */
col = ( ((pixel&0xFF)<<16)
| (pixel&0xFF00)
| ((pixel&0xFF0000)>>16) );
val = RGB_TO_VDI( col );
}
set_stdpx( &stdform, wdplanesize, x, y, val );
} else {
if( pixel != prev_pixel ){
/* convert pixel value to vdi color index: */
pixel = pixel >> 8;
col = ( ((pixel&0xFF)<<16)
| (pixel&0xFF00)
| ((pixel&0xFF0000)>>16) );
val = RGB_TO_VDI( col );
prev_pixel = pixel;
}
set_stdpx( &stdform, wdplanesize, x, y, val );
}
}
}
// adjust output position:
clip->g_x = 0;
clip->g_y = 0;
} else {
// convert the whole image data to vdi std format.
for( y=0; y < bh; y++ ){
row = (uint32_t *)(img->pixdata + (img_stride * y));
for( x=0; x < bw; x++ ){
pixel = row[x];
if( pixel != prev_pixel ){
/* convert pixel value to vdi color index: */
pixel = pixel >> 8;
col = ( ((pixel&0xFF)<<16)
| (pixel&0xFF00)
| ((pixel&0xFF0000)>>16) );
val = RGB_TO_VDI( col );
prev_pixel = pixel;
}
set_stdpx( &stdform, wdplanesize, x, y, val );
}
}
}
// convert into native format:
native.fd_w = stdform.fd_w;
native.fd_h = stdform.fd_h;
native.fd_wdwidth = stdform.fd_wdwidth;
native.fd_stand = 0;
native.fd_nplanes = (short)atari_plot_bpp_virt;
native.fd_r1 = native.fd_r2 = native.fd_r3 = 0;
vr_trnfm(atari_plot_vdi_handle, &stdform, &native );
*out = native;
if( cache == true ){
img->native = native;
img->converted = true;
}
return(0);
}
#endif
/*
*
* Convert bitmap to the native screen format
* img: the bitmap
* x: coordinate where the bitmap REGION (described in clip)
* shall be drawn (screen coords)
* y: coordinate where the bitmap REGION (described in clip)
* shall be drawn (screen coords)
* clip: which area of the bitmap shall be drawn
* bg: background color
* flags: blit flags
* out: the result MFDB
*/
static bool bitmap_convert_tc(struct bitmap * img, int x, int y,
GRECT * clip, uint32_t bg, uint32_t flags, MFDB *out )
{
int dststride; /* stride of dest. image */
int dstsize; /* size of dest. in byte */
int err;
int bw, bh;
struct bitmap * scrbuf = NULL;
struct bitmap * source = NULL;
bool cache = ( flags & BITMAPF_BUFFER_NATIVE );
bool opaque = bitmap_get_opaque( img );
if( opaque == false ){
if( ( (atari_plot_flags & PLOT_FLAG_TRANS) == 0)
&&
((flags & (BITMAPF_MONOGLYPH|BITMAPF_BUFFER_NATIVE))==0) ){
opaque = true;
}
}
assert( clip->g_h > 0 );
assert( clip->g_w > 0 );
bw = bitmap_get_width( img );
bh = bitmap_get_height( img );
// The converted bitmap can be saved for subsequent blits, WHEN:
// A.) the bitmap is fully opaque OR
// B.) the bitmap is completly inside the window
// the latter one is important for alpha blits,
// because we must get the window background to apply transparency
// If the image is not completly within the window,
// we can't get the whole background for the image.
// this only works if the image isn't used at several different places.
// In fact in case of alpha bitmap caching it is only used for the
// toolbar buttons right now.
if( (opaque == true) || (flags & BITMAPF_BUFFER_NATIVE ) ){
if( img->converted == true ){
*out = img->native;
return( 0 );
}
if( ( flags & BITMAPF_MONOGLYPH ) == 0 ){
cache = true;
}
}
/* rem. if eddi xy is installed, we could directly access the screen! */
/* apply transparency to the image: */
if (( opaque == false )) {
/* copy the screen to an temp buffer: */
if ((flags & BITMAPF_BUFFER_NATIVE) == 0) {
scrbuf = snapshot_create(x, y, clip->g_w, clip->g_h);
if( scrbuf != NULL ) {
assert( clip->g_w <= bw );
assert( clip->g_h <= bh );
// copy blended pixels to the screen buffer:
ablend_bitmap( img, scrbuf, clip, NULL );
/* adjust size which gets converted: */
bw = clip->g_w;
bh = clip->g_h;
/* adjust output position: */
clip->g_x = 0;
clip->g_y = 0;
/* set the source of conversion: */
source = scrbuf;
}
} else {
/*
The whole bitmap can be transformed to an mfdb
(and get's cached)
*/
GRECT region = { 0, 0, bw, bh };
ablend_pixel( img, bg, &region );
source = img;
}
} else {
source = img;
}
/* (re)allocate buffer for converted image: */
dststride = MFDB_STRIDE(bw);
dstsize = ( ((dststride >> 3) * bh) * atari_plot_bpp_virt );
if (cache == false) {
if (dstsize > size_buf_packed) {
int blocks = (dstsize / (CONV_BLOCK_SIZE-1))+1;
if( buf_packed == NULL )
buf_packed =(void*)malloc( blocks * CONV_BLOCK_SIZE );
else
buf_packed =(void*)realloc(buf_packed,
blocks * CONV_BLOCK_SIZE);
assert( buf_packed );
if( buf_packed == NULL ) {
if( scrbuf != NULL )
bitmap_destroy( scrbuf );
return( 0-ERR_NO_MEM );
}
size_buf_packed = blocks * CONV_BLOCK_SIZE;
}
out->fd_addr = buf_packed;
} else {
assert( out->fd_addr == NULL );
out->fd_addr = (void*)malloc( dstsize );
if( out->fd_addr == NULL ){
if( scrbuf != NULL )
bitmap_destroy( scrbuf );
return( 0-ERR_NO_MEM );
}
}
out->fd_w = dststride;
out->fd_h = bh;
out->fd_wdwidth = dststride >> 4;
out->fd_stand = 0;
out->fd_nplanes = (short)atari_plot_bpp_virt;
out->fd_r1 = out->fd_r2 = out->fd_r3 = 0;
err = Hermes_ConverterRequest(
hermes_cnv_h,
&nsfmt,
&vfmt
);
assert( err != 0 );
// FIXME: here we can use the same optimization which is used for
// the snapshot creation.
/* convert image to virtual format: */
err = Hermes_ConverterCopy( hermes_cnv_h,
source->pixdata,
0, /* x src coord of top left in pixel coords */
0, /* y src coord of top left in pixel coords */
bw, bh,
source->rowstride, /* stride as bytes */
out->fd_addr,
0, /* x dst coord of top left in pixel coords */
0, /* y dst coord of top left in pixel coords */
bw, bh,
(dststride >> 3) * atari_plot_bpp_virt /* stride as bytes */
);
assert( err != 0 );
if( cache == true ){
img->native = *out;
img->converted = true;
}
return( 0 );
}
inline static void convert_bitmap_done(void)
{
if (size_buf_packed > CONV_KEEP_LIMIT) {
/* free the mem if it was an large allocation ... */
buf_packed = realloc(buf_packed, CONV_KEEP_LIMIT);
size_buf_packed = CONV_KEEP_LIMIT;
}
}
bool plot_blit_bitmap(struct bitmap * bmp, int x, int y,
unsigned long bg, unsigned long flags )
{
MFDB src_mf;
MFDB scrmf;
short pxy[8];
GRECT off, clip, vis;
int screen_x, screen_y;
src_mf.fd_addr = NULL;
scrmf.fd_addr = NULL;
off.g_x = x;
off.g_y = y;
off.g_h = bmp->height;
off.g_w = bmp->width;
// clip plotter clip rectangle:
clip.g_x = view.clipping.x0;
clip.g_y = view.clipping.y0;
clip.g_w = view.clipping.x1 - view.clipping.x0;
clip.g_h = view.clipping.y1 - view.clipping.y0;
if( !rc_intersect( &clip, &off) ) {
return(true);
}
// clip the visible rectangle of the plot area
// this is the area of the plotter which falls into
// screen region:
plot_get_visible_grect(&vis);
if( !rc_intersect( &vis, &off) ) {
return(true);
}
screen_x = view.x + off.g_x;
screen_y = view.y + off.g_y;
// convert the clipping relative to bitmap:
off.g_x = off.g_x - x;
off.g_y = off.g_y - y;
assert( (off.g_x >= 0) && (off.g_y >= 0) );
/* Convert the Bitmap to native screen format - ready for output. */
/* This includes blending transparent pixels: */
if (bitmap_convert(bmp, screen_x, screen_y, &off, bg, flags, &src_mf)
!= 0 ) {
return(true);
}
// setup the src region:
pxy[0] = off.g_x;
pxy[1] = off.g_y;
pxy[2] = off.g_x + off.g_w-1;
pxy[3] = off.g_y + off.g_h-1;
// setup the target region:
pxy[4] = screen_x;
pxy[5] = screen_y;
pxy[6] = screen_x + off.g_w-1;
pxy[7] = screen_y + off.g_h-1;
vro_cpyfm(atari_plot_vdi_handle, S_ONLY, (short*)&pxy, &src_mf, &scrmf);
convert_bitmap_done();
snapshot_suspend();
return(true);
}
bool plot_blit_mfdb(GRECT * loc, MFDB * insrc, short fgcolor,
uint32_t flags)
{
MFDB screen, tran;
MFDB * src;
short pxy[8];
short c[2] = {fgcolor, 0};
GRECT off;
plot_get_clip_grect(&off);
if( rc_intersect(loc, &off) == 0 ){
return( 1 );
}
init_mfdb( 0, loc->g_w, loc->g_h, 0, &screen );
//
// if( insrc->fd_stand){
// printf("st\n");
// int size = init_mfdb( insrc->fd_nplanes, loc->g_w, loc->g_h,
// MFDB_FLAG_NOALLOC,
// &tran
// );
// if( size_buf_scr == 0 ){
// buf_scr.fd_addr = malloc( size );
// size_buf_scr = size;
// } else {
// if( size > size_buf_scr ) {
// buf_scr.fd_addr = realloc(
// buf_scr.fd_addr, size
// );
// size_buf_scr = size;
// }
// }
// tran.fd_addr = buf_scr.fd_addr;
// vr_trnfm(atari_plot_vdi_handle, insrc, &tran );
// src = &tran;
// } else {
src = insrc;
// }
pxy[0] = off.g_x - loc->g_x;
pxy[1] = off.g_y - loc->g_y;
pxy[2] = pxy[0] + off.g_w - 1;
pxy[3] = pxy[1] + off.g_h - 1;
pxy[4] = view.x + off.g_x;
pxy[5] = view.y + off.g_y;
pxy[6] = pxy[4] + off.g_w-1;
pxy[7] = pxy[5] + off.g_h-1;
if( flags & PLOT_FLAG_TRANS && src->fd_nplanes == 1){
vrt_cpyfm(atari_plot_vdi_handle, MD_REPLACE/*MD_TRANS*/, (short*)pxy, src, &screen, (short*)&c);
} else {
/* this method only plots transparent bitmaps, right now... */
}
return( 1 );
}
/*
Init screen and font driver objects.
Returns non-zero value > -1 when the objects could be succesfully created.
Returns value < 0 to indicate an error
*/
int plot_init(char * fdrvrname)
{
GRECT loc_pos= {0,0,360,400};
int err=0;
if( nsoption_int(atari_dither) == 1)
atari_plot_flags |= PLOT_FLAG_DITHER;
if( nsoption_int(atari_transparency) == 1 )
atari_plot_flags |= PLOT_FLAG_TRANS;
if( nsoption_int(atari_font_monochrom) == 1 )
atari_font_flags |= FONTPLOT_FLAG_MONOGLYPH;
if(atari_plot_vdi_handle == -1) {
short dummy;
short work_in[12] = {Getrez()+2,1,1,1,1,1,1,1,1,1,2,1};
short work_out[57];
atari_plot_vdi_handle=graf_handle(&dummy, &dummy, &dummy, &dummy);
v_opnvwk(work_in, &atari_plot_vdi_handle, work_out);
LOG(("Plot VDI handle: %d", atari_plot_vdi_handle));
}
read_vdi_sysinfo(atari_plot_vdi_handle, &vdi_sysinfo);
if(verbose_log) {
dump_vdi_info(atari_plot_vdi_handle) ;
dump_font_drivers();
}
fplotter = new_font_plotter(atari_plot_vdi_handle, fdrvrname,
atari_font_flags, &err);
if(err) {
const char * desc = plot_err_str(err);
die(("Unable to load font plotter %s -> %s", fdrvrname, desc ));
}
memset(&view, 0, sizeof(struct s_view));
atari_plot_bpp_virt = vdi_sysinfo.scr_bpp;
view.x = loc_pos.g_x;
view.y = loc_pos.g_y;
view.w = loc_pos.g_w;
view.h = loc_pos.g_h;
size_buf_packed = 0;
size_buf_planar = 0;
buf_packed = NULL;
buf_planar = NULL;
if( vdi_sysinfo.vdiformat == VDI_FORMAT_PACK ) {
atari_plot_bpp_virt = vdi_sysinfo.scr_bpp;
} else {
atari_plot_bpp_virt = 8;
}
plot_set_scale(1.0);
update_visible_rect();
struct rect clip;
clip.x0 = 0;
clip.y0 = 0;
clip.x1 = view.w;
clip.y1 = view.h;
plot_clip(&clip);
assert(Hermes_Init());
#ifdef WITH_8BPP_SUPPORT
bitmap_convert = (vdi_sysinfo.scr_bpp > 8) ? bitmap_convert_tc : bitmap_convert_8;
/* Setup color lookup tables and palette */
unsigned char rgbcol[4];
if( vdi_sysinfo.scr_bpp <= 8 ){
unsigned char graytone=0;
int i;
for( i=0; i<=255; i++ ) {
// get the current color and save it for restore:
vq_color(atari_plot_vdi_handle, i, 1, (unsigned short*)&sys_pal[i][0] );
if( i<OFFSET_WEB_PAL ) {
pal[i][0] = sys_pal[i][0];
pal[i][1] = sys_pal[i][1];
pal[i][2] = sys_pal[i][2];
} else if( vdi_sysinfo.scr_bpp >= 8 ) {
if ( i < OFFSET_CUST_PAL ){
pal[i][0] = vdi_web_pal[i-OFFSET_WEB_PAL][0];
pal[i][1] = vdi_web_pal[i-OFFSET_WEB_PAL][1];
pal[i][2] = vdi_web_pal[i-OFFSET_WEB_PAL][2];
//set the new palette color to websafe value:
vs_color(atari_plot_vdi_handle, i, &pal[i][0]);
}
if( i >= OFFSET_CUST_PAL && i<OFFSET_CUST_PAL+16 ) {
/* here we define 20 additional gray colors... */
rgbcol[1] = rgbcol[2] = rgbcol[3] = ((graytone&0x0F) << 4);
rgb_to_vdi1000( &rgbcol[0], &pal[i][0] );
vs_color(atari_plot_vdi_handle, i, &pal[i][0]);
graytone++;
}
}
vdi1000_to_rgb( &pal[i][0], &rgb_lookup[i][0] );
}
} else {
/* no need to change the palette - its application specific */
}
#else
bitmap_convert = bitmap_convert_tc;
#endif
/* Setup Hermes conversion handles */
unsigned long hermesflags = (atari_plot_flags & PLOT_FLAG_DITHER) ? HERMES_CONVERT_DITHER : 0;
hermes_cnv_h = Hermes_ConverterInstance(hermesflags);
assert( hermes_cnv_h );
hermes_res_h = Hermes_ConverterInstance(hermesflags);
assert( hermes_res_h );
/* set up the src & dst format: */
/* netsurf uses RGBA ... */
nsfmt.a = 0xFFUL;
nsfmt.b = 0x0FF00UL;
nsfmt.g = 0x0FF0000UL;
nsfmt.r = 0x0FF000000UL;
nsfmt.bits = 32;
nsfmt.indexed = false;
nsfmt.has_colorkey = false;
vfmt.r = vdi_sysinfo.mask_r;
vfmt.g = vdi_sysinfo.mask_g;
vfmt.b = vdi_sysinfo.mask_b;
vfmt.a = vdi_sysinfo.mask_a;
vfmt.bits = atari_plot_bpp_virt;
vfmt.indexed = (atari_plot_bpp_virt <= 8) ? 1 : 0;
vfmt.has_colorkey = 0;
return( err );
}
int plot_finalise( void )
{
delete_font_plotter(fplotter);
#ifdef WITH_8BPP_SUPPORT
if (vfmt.indexed) {
int i;
for (i=OFFSET_WEB_PAL; i<OFFSET_CUST_PAL+16; i++) {
vs_color(atari_plot_vdi_handle, i, &sys_pal[i][0]);
}
}
#endif
/* close Hermes stuff: */
Hermes_ConverterReturn(hermes_cnv_h);
Hermes_Done();
/* free up temporary buffers */
free(buf_packed );
free(buf_planar);
snapshot_destroy();
}
bool plot_lock(void)
{
if ((atari_plot_flags & PLOT_FLAG_LOCKED) != 0)
return(true);
if( !wind_update(BEG_UPDATE|0x100) )
return(false);
if( !wind_update(BEG_MCTRL|0x100) ){
wind_update(END_UPDATE);
return(false);
}
atari_plot_flags |= PLOT_FLAG_LOCKED;
graf_mouse(M_OFF, NULL);
return(true);
}
bool plot_unlock(void)
{
if( (atari_plot_flags & PLOT_FLAG_LOCKED) == 0 )
return(true);
wind_update(END_MCTRL);
wind_update(END_UPDATE);
graf_mouse(M_ON, NULL);
vs_clip_off(atari_plot_vdi_handle);
atari_plot_flags &= ~PLOT_FLAG_LOCKED;
return(false);
}
bool plot_rectangle(int x0, int y0, int x1, int y1,
const plot_style_t *pstyle )
{
short pxy[4];
GRECT r, rclip, sclip;
int sw = pstyle->stroke_width;
uint32_t lt;
/* current canvas clip: */
rclip.g_x = view.clipping.x0;
rclip.g_y = view.clipping.y0;
rclip.g_w = view.clipping.x1 - view.clipping.x0;
rclip.g_h = view.clipping.y1 - view.clipping.y0;
/* physical clipping: */
sclip.g_x = rclip.g_x;
sclip.g_y = rclip.g_y;
sclip.g_w = view.vis_w;
sclip.g_h = view.vis_h;
rc_intersect(&sclip, &rclip);
r.g_x = x0;
r.g_y = y0;
r.g_w = x1 - x0;
r.g_h = y1 - y0;
if (!rc_intersect( &rclip, &r )) {
return(true);
}
if (pstyle->stroke_type != PLOT_OP_TYPE_NONE) {
/*
manually draw the line, because we do not need vdi clipping
for vertical / horizontal line draws.
*/
if( sw == 0)
sw = 1;
NSLT2VDI(lt, pstyle);
vsl_type(atari_plot_vdi_handle, (lt&0x0F));
/*
if the line style is not available within VDI system,
define own style:
*/
if( (lt&0x0F) == 7 ){
vsl_udsty(atari_plot_vdi_handle, ((lt&0xFFFF00) >> 8));
}
vsl_width(atari_plot_vdi_handle, (short)sw );
vsl_rgbcolor(atari_plot_vdi_handle, pstyle->stroke_colour);
/* top border: */
if( r.g_y == y0){
pxy[0] = view.x + r.g_x;
pxy[1] = view.y + r.g_y ;
pxy[2] = view.x + r.g_x + r.g_w;
pxy[3] = view.y + r.g_y;
v_pline(atari_plot_vdi_handle, 2, (short *)&pxy);
}
/* right border: */
if( r.g_x + r.g_w == x1 ){
pxy[0] = view.x + r.g_x + r.g_w;
pxy[1] = view.y + r.g_y;
pxy[2] = view.x + r.g_x + r.g_w;
pxy[3] = view.y + r.g_y + r.g_h;
v_pline(atari_plot_vdi_handle, 2, (short *)&pxy);
}
/* bottom border: */
if( r.g_y+r.g_h == y1 ){
pxy[0] = view.x + r.g_x;
pxy[1] = view.y + r.g_y+r.g_h;
pxy[2] = view.x + r.g_x+r.g_w;
pxy[3] = view.y + r.g_y+r.g_h;
v_pline(atari_plot_vdi_handle, 2, (short *)&pxy);
}
/* left border: */
if( r.g_x == x0 ){
pxy[0] = view.x + r.g_x;
pxy[1] = view.y + r.g_y;
pxy[2] = view.x + r.g_x;
pxy[3] = view.y + r.g_y + r.g_h;
v_pline(atari_plot_vdi_handle, 2, (short *)&pxy);
}
}
if( pstyle->fill_type != PLOT_OP_TYPE_NONE ){
short stroke_width = (short)(pstyle->stroke_type != PLOT_OP_TYPE_NONE) ?
pstyle->stroke_width : 0;
vsf_rgbcolor(atari_plot_vdi_handle, pstyle->fill_colour);
vsf_perimeter(atari_plot_vdi_handle, 0);
vsf_interior(atari_plot_vdi_handle, FIS_SOLID);
pxy[0] = view.x + r.g_x + stroke_width;
pxy[1] = view.y + r.g_y + stroke_width;
pxy[2] = view.x + r.g_x + r.g_w -1 - stroke_width;
pxy[3] = view.y + r.g_y + r.g_h -1 - stroke_width;
vsf_style(atari_plot_vdi_handle, 1);
v_bar(atari_plot_vdi_handle, (short*)&pxy);
}
return (true);
}
bool plot_line(int x0, int y0, int x1, int y1,
const plot_style_t *pstyle )
{
short pxy[4];
uint32_t lt;
int sw = pstyle->stroke_width;
if((x0 < 0 && x1 < 0) || (y0 < 0 && y1 < 0)){
return(true);
}
pxy[0] = view.x + MAX(0,x0);
pxy[1] = view.y + MAX(0,y0);
pxy[2] = view.x + MAX(0,x1);
pxy[3] = view.y + MAX(0,y1);
if((y0 > view.h-1) && (y1 > view.h-1))
return(true);
//printf("view: %d,%d,%d,%d\n", view.x, view.y, view.w, view.h);
//printf("line: %d,%d,%d,%d\n", x0, y0, x1, y1);
//plot_vdi_clip(true);
if( sw == 0)
sw = 1;
NSLT2VDI(lt, pstyle)
vsl_type(atari_plot_vdi_handle, (lt&0x0F));
/* if the line style is not available within VDI system,define own style: */
if( (lt&0x0F) == 7 ){
vsl_udsty(atari_plot_vdi_handle, ((lt&0xFFFF00) >> 8));
}
vsl_width(atari_plot_vdi_handle, (short)sw);
vsl_rgbcolor(atari_plot_vdi_handle, pstyle->stroke_colour);
v_pline(atari_plot_vdi_handle, 2, (short *)&pxy );
//plot_vdi_clip(false);
return (true);
}
static bool plot_polygon(const int *p, unsigned int n,
const plot_style_t *pstyle)
{
short pxy[n*2];
unsigned int i=0;
if (vdi_sysinfo.maxpolycoords > 0)
assert( (signed int)n < vdi_sysinfo.maxpolycoords);
vsf_interior(atari_plot_vdi_handle, FIS_SOLID);
vsf_style(atari_plot_vdi_handle, 1);
for (i = 0; i<n*2; i=i+2) {
pxy[i] = (short)view.x+p[i];
pxy[i+1] = (short)view.y+p[i+1];
}
if (pstyle->fill_type == PLOT_OP_TYPE_SOLID) {
vsf_rgbcolor(atari_plot_vdi_handle, pstyle->fill_colour);
v_fillarea(atari_plot_vdi_handle, n, (short*)&pxy);
} else {
pxy[n*2]=pxy[0];
pxy[n*2+1]=pxy[1];
vsl_rgbcolor(atari_plot_vdi_handle, pstyle->stroke_colour);
v_pline(atari_plot_vdi_handle, n+1, (short *)&pxy);
}
return ( true );
}
/***
* Set plot origin and canvas size
* \param x the x origin
* \param y the y origin
* \param w the width of the plot area
* \param h the height of the plot area
*/
bool plot_set_dimensions(int x, int y, int w, int h)
{
bool doupdate = false;
struct rect newclip = {0, 0, w, h};
GRECT absclip = {x, y, w, h};
if (!(w == view.w && h == view.h)) {
view.w = (short)w;
view.h = (short)h;
doupdate = true;
}
if (!(x == view.x && y == view.y)) {
view.x = (short)x;
view.y = (short)y;
doupdate = true;
}
if (doupdate==true)
update_visible_rect();
//dbg_rect("plot_set_dimensions", &newclip);
plot_set_abs_clipping(&absclip);
plot_clip(&newclip);
return(true);
}
/***
* Get current canvas size
* \param dst the GRECT * which receives the canvas size
*
*/
bool plot_get_dimensions(GRECT *dst)
{
dst->g_x = view.x;
dst->g_y = view.y;
dst->g_w = view.w;
dst->g_h = view.h;
return(true);
}
/**
* set scale of plotter.
* \param scale the new scale value
* \return the old scale value
*/
float plot_set_scale(float scale)
{
float ret = view.scale;
view.scale = scale;
return(ret);
}
float plot_get_scale(void)
{
return(view.scale);
}
/**
*
* Subsequent calls to plot_clip will be clipped by the absolute clip.
* \param area the maximum clipping rectangle (absolute screen coords)
*
*/
void plot_set_abs_clipping(const GRECT *area)
{
GRECT canvas;
plot_get_dimensions(&canvas);
if(!rc_intersect(area, &canvas)){
view.abs_clipping.x0 = 0;
view.abs_clipping.x1 = 0;
view.abs_clipping.y0 = 0;
view.abs_clipping.y1 = 0;
}
else {
view.abs_clipping.x0 = area->g_x;
view.abs_clipping.x1 = area->g_x + area->g_w;
view.abs_clipping.y0 = area->g_y;
view.abs_clipping.y1 = area->g_y + area->g_h;
}
}
/***
* Get the maximum clip extent, in absolute screen coords
* \param dst the structure that receives the absolute clipping
*/
void plot_get_abs_clipping(struct rect *dst)
{
*dst = view.abs_clipping;
}
/***
* Get the maximum clip extent, in absolute screen coords
* \param dst the structure that receives the absolute clipping
*/
void plot_get_abs_clipping_grect(GRECT *dst)
{
dst->g_x = view.abs_clipping.x0;
dst->g_w = view.abs_clipping.x1 - view.abs_clipping.x0;
dst->g_y = view.abs_clipping.y0;
dst->g_h = view.abs_clipping.y1 - view.abs_clipping.y0;
}
bool plot_clip(const struct rect *clip)
{
GRECT canvas, screen, gclip, maxclip;
short pxy[4];
screen.g_x = 0;
screen.g_y = 0;
screen.g_w = vdi_sysinfo.scr_w;
screen.g_h = vdi_sysinfo.scr_h;
plot_get_dimensions(&canvas);
view.clipping.y0 = clip->y0;
view.clipping.y1 = clip->y1;
view.clipping.x0 = clip->x0;
view.clipping.x1 = clip->x1;
plot_get_clip_grect(&gclip);
gclip.g_x += canvas.g_x;
gclip.g_y += canvas.g_y;
rc_intersect(&canvas, &gclip);
if(gclip.g_h < 0){
gclip.g_h = 0;
}
if (!rc_intersect(&screen, &gclip)) {
//dbg_rect("cliprect: ", &view.clipping);
//dbg_grect("screen: ", &canvas);
//dbg_grect("canvas clipped: ", &gclip);
//assert(1 == 0);
}
// When setting VDI clipping, obey to maximum cliping rectangle:
plot_get_abs_clipping_grect(&maxclip);
rc_intersect(&maxclip, &gclip);
//dbg_grect("canvas clipped to screen", &gclip);
pxy[0] = gclip.g_x;
pxy[1] = gclip.g_y;
pxy[2] = pxy[0] + gclip.g_w;
pxy[3] = pxy[1] + gclip.g_h;
vs_clip(atari_plot_vdi_handle, 1, (short*)&pxy);
return ( true );
}
VdiHdl plot_get_vdi_handle(void)
{
return(atari_plot_vdi_handle);
}
long plot_get_flags(void)
{
return(atari_plot_flags);
}
bool plot_get_clip(struct rect * out)
{
out->x0 = view.clipping.x0;
out->y0 = view.clipping.y0;
out->x1 = view.clipping.x1;
out->y1 = view.clipping.y1;
return( true );
}
void plot_get_clip_grect(GRECT * out)
{
struct rect clip={0,0,0,0};
plot_get_clip(&clip);
out->g_x = clip.x0;
out->g_y = clip.y0;
out->g_w = clip.x1 - clip.x0;
out->g_h = clip.y1 - clip.y0;
}
FONT_PLOTTER plot_get_text_plotter()
{
return(fplotter);
}
void plot_set_text_plotter(FONT_PLOTTER font_plotter)
{
fplotter = font_plotter;
}
static bool plot_text(int x, int y, const char *text, size_t length, const plot_font_style_t *fstyle )
{
if (view.scale != 1.0) {
plot_font_style_t newstyle = *fstyle;
newstyle.size = (int)((float)fstyle->size*view.scale);
fplotter->text(fplotter, x, y, text, length, &newstyle);
} else {
fplotter->text(fplotter, x, y, text, length, fstyle);
}
return ( true );
}
static bool plot_disc(int x, int y, int radius, const plot_style_t *pstyle)
{
if (pstyle->fill_type != PLOT_OP_TYPE_SOLID) {
vsf_rgbcolor(atari_plot_vdi_handle, pstyle->stroke_colour);
vsf_perimeter(atari_plot_vdi_handle, 1);
vsf_interior(atari_plot_vdi_handle, 0);
v_circle(atari_plot_vdi_handle, view.x + x, view.y + y, radius);
} else {
vsf_rgbcolor(atari_plot_vdi_handle, pstyle->fill_colour);
vsf_perimeter(atari_plot_vdi_handle, 0);
vsf_interior(atari_plot_vdi_handle, FIS_SOLID);
v_circle(atari_plot_vdi_handle, view.x + x, view.y + y, radius);
}
return(true);
}
static bool plot_arc(int x, int y, int radius, int angle1, int angle2,
const plot_style_t *pstyle)
{
vswr_mode(atari_plot_vdi_handle, MD_REPLACE );
if (pstyle->fill_type == PLOT_OP_TYPE_NONE)
return(true);
if ( pstyle->fill_type != PLOT_OP_TYPE_SOLID) {
vsl_rgbcolor(atari_plot_vdi_handle, pstyle->stroke_colour);
vsf_perimeter(atari_plot_vdi_handle, 1);
vsf_interior(atari_plot_vdi_handle, 1 );
v_arc(atari_plot_vdi_handle, view.x + x, view.y + y, radius, angle1*10, angle2*10);
} else {
vsf_rgbcolor(atari_plot_vdi_handle, pstyle->fill_colour);
vsl_width(atari_plot_vdi_handle, 1 );
vsf_perimeter(atari_plot_vdi_handle, 1);
v_arc(atari_plot_vdi_handle, view.x + x, view.y + y, radius, angle1*10, angle2*10);
}
return (true);
}
static bool plot_bitmap(int x, int y, int width, int height,
struct bitmap *bitmap, colour bg,
bitmap_flags_t flags)
{
struct bitmap * bm = NULL;
bool repeat_x = (flags & BITMAPF_REPEAT_X);
bool repeat_y = (flags & BITMAPF_REPEAT_Y);
int bmpw,bmph;
struct rect clip = {0,0,0,0};
bmpw = bitmap_get_width(bitmap);
bmph = bitmap_get_height(bitmap);
if(view.scale != 1.0){
width = (int)(((float)width)*view.scale);
height = (int)(((float)height)*view.scale);
}
if ( repeat_x || repeat_y ) {
plot_get_clip(&clip);
if( repeat_x && width == 1 && repeat_y && height == 1 ) {
width = MAX( width, clip.x1 - x );
height = MAX( height, clip.y1 - y );
} else if( repeat_x && width == 1 ) {
width = MAX( width, clip.x1 - x);
} else if( repeat_y && height == 1) {
height = MAX( height, clip.y1 - y );
}
}
if( width != bmpw || height != bmph ) {
bitmap_resize(bitmap, hermes_res_h, &nsfmt, width, height );
if( bitmap->resized )
bm = bitmap->resized;
else
bm = bitmap;
} else {
bm = bitmap;
}
/* out of memory? */
if( bm == NULL ) {
printf("plot: out of memory! bmp: %p, bmpres: %p\n", bitmap, bitmap->resized );
return( true );
}
if (!(repeat_x || repeat_y) ) {
plot_blit_bitmap(bm, x, y, bg, flags );
} else {
int xf,yf;
int xoff = x;
int yoff = y;
if (yoff > clip.y0 )
yoff = (clip.y0 - height) + ((yoff - clip.y0) % height);
if (xoff > clip.x0 )
xoff = (clip.x0 - width) + ((xoff - clip.x0) % width);
/* for now, repeating just works in the rigth / down direction */
/*
if( repeat_x == true )
xoff = clip.x0;
if(repeat_y == true )
yoff = clip.y0;
*/
for( xf = xoff; xf < clip.x1; xf += width ) {
for( yf = yoff; yf < clip.y1; yf += height ) {
plot_blit_bitmap(bm, xf, yf, bg, flags );
if (!repeat_y)
break;
}
if (!repeat_x)
break;
}
}
return ( true );
}
static bool plot_path(const float *p, unsigned int n, colour fill, float width,
colour c, const float transform[6])
{
return ( true );
}
const struct plotter_table atari_plotters = {
.rectangle = plot_rectangle,
.line = plot_line,
.polygon = plot_polygon,
.clip = plot_clip,
.text = plot_text,
.disc = plot_disc,
.arc = plot_arc,
.bitmap = plot_bitmap,
.path = plot_path,
.flush = NULL,
.group_start = NULL,
.group_end = NULL,
.option_knockout = true
};
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