This commit is contained in:
Vince Weaver 2004-10-27 00:31:00 -04:00
parent 44d2c4d961
commit ec2cc95918
6 changed files with 298 additions and 30 deletions

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@ -1,3 +1,10 @@
27 October 2004
+ Of course instead of finishing things up, used the library to display
pcx files so I can give presentations using an old 486 laptop.
(Convert pdf's which are slow to display to 8-bit 640x480 .pcx files
which render plenty fast on a 75MHz 486).
29 Septemer 2004
+ Backed out the half-baked "generalized level 2" changes. They made
things 10 times as complicated for no good reason. Pre-mature

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@ -74,3 +74,4 @@ tblib.o: tblib.c
clean:
rm -f tb1 *.o *~
cd svmwgraph && make clean
cd tools && make clean

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@ -132,6 +132,12 @@ void vmwUnFade(vmwSVMWGraphState *state,vmwVisual *source);
/* From vmw_pcx.c */
#define PCX_UNKNOWN 0
#define PCX_8BITPAL 1
#define PCX_24BIT 2
int vmwGetPCXInfo(char *FileName, int *xsize, int *ysize, int *type);
int vmwLoadPCX(int x1,int y1,vmwVisual *target,
int LoadPal,int LoadPic,char *FileName,
vmwSVMWGraphState *graph_state);

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@ -15,13 +15,89 @@
#include <sys/stat.h> /* for file modes */
int vmwGetPCXInfo(char *FileName, int *xsize, int *ysize, int *type) {
unsigned char pcx_header[128];
int xmin,ymin,xmax,ymax,version=PCX_UNKNOWN,bpp,debug=1,pcx_fd;
/* Open the file */
pcx_fd=open(FileName,O_RDONLY);
if (pcx_fd<0) {
printf("ERROR! File \"%s\" not found!\n",FileName);
return VMW_ERROR_FILE;
}
lseek(pcx_fd,0,SEEK_SET);
read(pcx_fd,&pcx_header,128);
xmin=(pcx_header[5]<<8)+pcx_header[4];
ymin=(pcx_header[7]<<8)+pcx_header[6];
xmax=(pcx_header[9]<<8)+pcx_header[8];
ymax=(pcx_header[11]<<8)+pcx_header[10];
version=pcx_header[1];
bpp=pcx_header[3];
if (debug) {
printf("Manufacturer: ");
if (pcx_header[0]==10) printf("Zsoft\n");
else printf("Unknown %i\n",pcx_header[0]);
printf("Version: ");
switch(version) {
case 0: printf("2.5\n"); break;
case 2: printf("2.8 w palette\n"); break;
case 3: printf("2.8 w/o palette\n"); break;
case 4: printf("Paintbrush for Windows\n"); break;
case 5: printf("3.0+\n"); break;
default: printf("Unknown %i\n",version);
}
printf("Encoding: ");
if (pcx_header[2]==1) printf("RLE\n");
else printf("Unknown %i\n",pcx_header[2]);
printf("BitsPerPixelPerPlane: %i\n",bpp);
printf("File goes from %i,%i to %i,%i\n",xmin,ymin,xmax,ymax);
printf("Horizontal DPI: %i\n",(pcx_header[13]<<8)+pcx_header[12]);
printf("Vertical DPI: %i\n",(pcx_header[15]<<8)+pcx_header[14]);
printf("Number of colored planes: %i\n",pcx_header[65]);
printf("Bytes per line: %i\n",(pcx_header[67]<<8)+pcx_header[66]);
printf("Palette Type: %i\n",(pcx_header[69]<<8)+pcx_header[68]);
printf("Hscreen Size: %i\n",(pcx_header[71]<<8)+pcx_header[70]);
printf("Vscreen Size: %i\n",(pcx_header[73]<<8)+pcx_header[72]);
}
// *xsize=(xmax-xmin+1);
// *ysize=(ymax-ymin+1);
*xsize=(xmax-xmin+1);
*ysize=(ymax-ymin+1);
if ((version==5) && (bpp==8) && (pcx_header[65]==3)) *type=PCX_24BIT;
else if (version==5) *type=PCX_8BITPAL;
else *type=PCX_UNKNOWN;
close(pcx_fd);
return 0;
}
int vmwLoadPCX(int x1,int y1,vmwVisual *target,
int LoadPal,int LoadPic,char *FileName,
vmwSVMWGraphState *graph_state)
{
int pcx_fd,x,y,i,r,g,b,numacross,xsize,ysize;
int pcx_fd,x,y,i,numacross,xsize,ysize,xmin,ymin;
unsigned int r,g,b;
int bpp,planes,bpl,xmax,ymax,version;
unsigned char pcx_header[128];
unsigned char temp_byte;
@ -33,51 +109,98 @@ int vmwLoadPCX(int x1,int y1,vmwVisual *target,
return VMW_ERROR_FILE;
}
read(pcx_fd,&pcx_header,128);
xsize=(pcx_header[9]<<8)+pcx_header[8];
ysize=(pcx_header[11]<<8)+pcx_header[10];
printf("Loading %ix%i pcx file\n",xsize,ysize);
/*************** DECODE THE HEADER *************************/
read(pcx_fd,&pcx_header,128);
xmin=(pcx_header[5]<<8)+pcx_header[4];
ymin=(pcx_header[7]<<8)+pcx_header[6];
xmax=(pcx_header[9]<<8)+pcx_header[8];
ymax=(pcx_header[11]<<8)+pcx_header[10];
version=pcx_header[1];
bpp=pcx_header[3];
planes=pcx_header[65];
bpl=(pcx_header[67]<<8)+pcx_header[66];
xsize=((xmax-xmin)+1);
ysize=((ymax-ymin)+1);
/* Possibly add some sanity checking in the header at some point... */
/* Or actually even get the proper VALUES from the header. Some day... */
if (LoadPic) {
unsigned char *pointer=target->memory;
x=0; y=0;
while (y<ysize) {
while (x<xsize*ysize) {
read(pcx_fd,&temp_byte,1);
if ((temp_byte>=192) && (temp_byte<=255)) {
numacross=temp_byte-192;
if (0xc0 == (temp_byte&0xc0)) {
numacross=temp_byte&0x3f;
read(pcx_fd,&temp_byte,1);
vmwDrawHLine(x,y,numacross,temp_byte,target);
x+=numacross;
// y++; if (y%2) temp_byte=0xff;
// temp_byte=0xff;
// printf("%i pixels of %i\n",numacross,temp_byte);
for(i=0;i<numacross;i++) {
*pointer=temp_byte;
pointer++;
x++;
}
//printf("Color=%i Across=%i\n",temp_byte,numacross);
//vmwDrawHLine(x,y,numacross,temp_byte,target);
//x+=numacross;
}
else {
vmwPutPixel(x,y,temp_byte,target);
//vmwPutPixel(x,y,temp_byte,target);
//printf("%i, %i Color=%i\n",x,y,temp_byte);
*pointer=temp_byte;
// if (temp_byte!=0) printf("COLOR=%i\n",temp_byte);
pointer++;
x++;
}
if (x>xsize) {
x=0;
y++;
}
/* why is this needed? */
if (x%xsize==0) {
pointer++;
}
//printf("WARNING! X=%i\n",x);
// x=0;
// y++;
// }
}
}
/*Load Palette*/
if (LoadPal) {
lseek(pcx_fd,-768,SEEK_END);
lseek(pcx_fd,-769,SEEK_END);
read(pcx_fd,&temp_byte,1);
if (temp_byte!=12) {
printf("Error! No palette found!\n");
}
else
for(i=0;i<255;i++) {
read(pcx_fd,&r,1);
read(pcx_fd,&g,1);
read(pcx_fd,&b,1);
read(pcx_fd,&temp_byte,1);
r=temp_byte;
read(pcx_fd,&temp_byte,1);
g=temp_byte;
read(pcx_fd,&temp_byte,1);
b=temp_byte;
vmwLoadPalette(graph_state,
r,
g,
b,i);
// printf("%i: 0x%x %x %x\n",i,r,g,b);
}
vmwFlushPalette(graph_state);
}

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@ -3,34 +3,40 @@ include ../Makefile.inc
INCLUDE= $(INCLUDE_GLOBAL) -I../svmwgraph
LIBS= $(LIBS_GLOBAL)
all: ppro_view pcx2ppp level2_editor
all: ppro_view pcx2ppp level2_editor pcx_slideshow
level2_editor: level2_editor.o ../svmwgraph/libsvmwgraph.a
gcc -o level2_editor level2_editor.o ../svmwgraph/libsvmwgraph.a $(LIBS)
$(CC) -o level2_editor level2_editor.o ../svmwgraph/libsvmwgraph.a $(LIBS)
benchmark: benchmark.o ../svmwgraph/libsvmwgraph.a
gcc -o benchmark benchmark.o ../svmwgraph/libsvmwgraph.a $(LIBS)
$(CC) -o benchmark benchmark.o ../svmwgraph/libsvmwgraph.a $(LIBS)
ppro_view: ppro_view.o ../svmwgraph/libsvmwgraph.a
gcc -o ppro_view ppro_view.o ../svmwgraph/libsvmwgraph.a $(LIBS)
$(CC) -o ppro_view ppro_view.o ../svmwgraph/libsvmwgraph.a $(LIBS)
pcx_slideshow: pcx_slideshow.o ../svmwgraph/libsvmwgraph.a
$(CC) -o pcx_slideshow pcx_slideshow.o ../svmwgraph/libsvmwgraph.a $(LIBS)
pcx2ppp: pcx2ppp.o ../svmwgraph/libsvmwgraph.a
gcc -o pcx2ppp pcx2ppp.o ../svmwgraph/libsvmwgraph.a $(LIBS)
$(CC) -o pcx2ppp pcx2ppp.o ../svmwgraph/libsvmwgraph.a $(LIBS)
../svmwgraph/libsvmwgraph.a:
cd ../svmwgraph && make
level2_editor.o: level2_editor.c
gcc -c level2_editor.c $(INCLUDE)
$(CC) -c level2_editor.c $(INCLUDE)
benchmark.o: benchmark.c
gcc -c benchmark.c $(INCLUDE)
$(CC) -c benchmark.c $(INCLUDE)
pcx2ppp.o: pcx2ppp.c
gcc -c pcx2ppp.c $(INCLUDE)
$(CC) -c pcx2ppp.c $(INCLUDE)
ppro_view.o: ppro_view.c
gcc -c ppro_view.c $(INCLUDE)
$(CC) -c ppro_view.c $(INCLUDE)
pcx_slideshow.o: pcx_slideshow.c
$(CC) -c pcx_slideshow.c $(INCLUDE)
clean:
rm -f ppro_view pcx2ppp benchmark level2_editor *.o *~
rm -f pcx_slideshow ppro_view pcx2ppp benchmark level2_editor *.o *~

125
tools/pcx_slideshow.c Normal file
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@ -0,0 +1,125 @@
/* Views paintpro files */
/* Also will re-save them */
#include <stdio.h>
#include <string.h> /* for strdup */
#include <unistd.h> /* for usleep() */
#include <stdlib.h> /* for exit() */
#include "svmwgraph.h"
int main(int argc,char **argv)
{
int grapherror;
int scale=1,fullscreen=0;
vmwVisual *virtual_1;
vmwPaintProHeader *ppro_header;
char *filename;
char ch=0;
char save_string[BUFSIZ];
char *extension,*temp_string1,*temp_string2;
int xsize,ysize,type;
int is_pcx=0,target=VMW_SDLTARGET;
int whichfile;
vmwSVMWGraphState *graph_state;
if (argc<2) {
printf("\nUsage: %s filename ...\n\n",argv[0]);
return -1;
}
whichfile=1;
while(whichfile<argc) {
/* Hacky way to grab the extension. I am sure this is a cleaner way */
temp_string1=strdup(argv[whichfile]);
temp_string2=strtok(temp_string1,".");
extension=temp_string2;
while( ( temp_string2=strtok(NULL,"."))!=NULL)
extension=temp_string2;
if (!strncmp(extension,"pcx",4)) {
vmwGetPCXInfo(argv[whichfile],&xsize,&ysize,&type);
if (type!=PCX_8BITPAL) {
printf("Unsupported PCX type! Must be 256 colors!\n");
exit(1);
}
printf("\nAttempting to load %s as a %ix%ix8bpp PCX file\n",
argv[whichfile],xsize,ysize);
is_pcx=1;
}
else { /* We assume paintpro file */
ppro_header=vmwGetPaintProHeader(argv[whichfile]);
printf("\nLoading file: %s\n",argv[whichfile]);
if (strncmp(ppro_header->ppro_string,"PAINTPRO",8)) {
printf("ERROR! Not in paintpro format!\n");
return 0;
}
if (strncmp(ppro_header->version,"V6.",3)) {
printf("ERROR! Not a version 6.x file!\n");
return 0;
}
printf(" + Verified PaintPro v%c.%c file.\n",ppro_header->version[1],
ppro_header->version[3]);
printf(" + Picture is %ix%i with %i colors.\n",
ppro_header->xsize,ppro_header->ysize,ppro_header->num_colors);
if (ppro_header->version[3]=='0') {
/* broken ppro 6.0 files sometimes were saved as 319x199 */
ppro_header->xsize=320;
ppro_header->ysize=205;
}
xsize=ppro_header->xsize;
ysize=ppro_header->ysize;
}
/* Setup Graphics */
if ( (graph_state=vmwSetupSVMWGraph(target,
xsize,
ysize,
0,scale,fullscreen,1))==NULL) {
fprintf(stderr,"ERROR: Couldn't get display set up properly.\n");
return VMW_ERROR_DISPLAY;
}
/* Allocate Virtual screen */
if ((virtual_1=vmwSetupVisual(xsize,ysize))==NULL) {
fprintf(stderr,"ERROR: Couldn't get RAM for virtual screen 1!\n");
return VMW_ERROR_MEM;
}
if (is_pcx) {
grapherror=vmwLoadPCX(0,0,virtual_1,1,1,argv[whichfile],graph_state);
}
else { /* Paintpro */
grapherror=vmwLoadPicPacked(0,0,virtual_1,1,1,
argv[whichfile],
graph_state);
}
vmwBlitMemToDisplay(graph_state,virtual_1);
while ( (ch=vmwGetInput())==0) usleep(100);
if ((ch=='Q') || (ch=='q') || (ch==VMW_ESCAPE)) break;
whichfile++;
if (whichfile>=argc) whichfile=1;
}
vmwCloseGraphics();
return 0;
}