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Club Amiga de Montreal - CAM
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505b.lha
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Ham_e_library
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BuffDemo.c
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C/C++ Source or Header
|
1991-05-05
|
6KB
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275 lines
#include <intuition/intuition.h>
#include <exec/types.h>
#include <exec/execbase.h>
#include <graphics/text.h>
#include <proto/exec.h>
#include <proto/graphics.h>
#include "hame_pragmas.h"
#include "HameStruct.h"
#include "HameProtos.h"
#include "HameRev.h"
#include <string.h>
#include <exec/memory.h>
#include <exec/tasks.h>
#include <graphics/view.h>
#include <graphics/gfx.h>
#include <graphics/rastport.h>
#include <proto/intuition.h>
struct Library *HameBase;
struct HamePort *HamePort;
extern struct Screen *OpenScreen();
extern struct Window *OpenWindow();
extern struct ExecBase *SysBase; /* These are all pointers to system */
struct IntuitionBase *IntuitionBase; /* These are all pointers to system */
struct GfxBase *GfxBase; /* data structures I need access to */
struct Screen *screen;
struct Window *window;
struct Clip *clip;
UBYTE *ptr1, *ptr2;
long ptsize;
#define WIDTH 640
#define HEIGHT 200
struct NewScreen my_screen =
{
0, 0, WIDTH, HEIGHT,
4,
0, 1,
HIRES,
CUSTOMSCREEN,
(struct TextAttr *) NULL,
NULL,
NULL, NULL
};
struct NewWindow my_window =
{
0, 0, WIDTH, HEIGHT,
(UBYTE) 0, (UBYTE) 1,
MOUSEBUTTONS
| INTUITICKS,
SMART_REFRESH
| BORDERLESS
| BACKDROP
| ACTIVATE
| NOCAREREFRESH
| REPORTMOUSE,
NULL, NULL,
NULL,
NULL, NULL,
0, 0, 0, 0,
CUSTOMSCREEN
};
/*
Clean up and exit
*/
void CloseStuff()
{
if (clip) HAME_DisposeClip(clip);
if (ptr1) FreeMem(ptr1, ptsize);
if (window) CloseWindow(window);
if (screen) CloseScreen(screen);
if (HamePort) HAME_Dispose(HamePort);
if (HameBase) CloseLibrary(HameBase);
if (GfxBase) CloseLibrary(GfxBase);
if (IntuitionBase) CloseLibrary(IntuitionBase);
exit(0);
}
/*
Draw a vertical column of pixels at the left margin to prevent hame from
turning off.
*/
void DrawLeftMargin()
{
int i;
HAME_SetAPen( HamePort, 1 );
for ( i = 0; i < 196; i++ )
{
HAME_WritePixel( HamePort, 0, i);
}
}
/*
Initialize the palette to a grey, a red, a green and a blue scale
Note that the four groups are intermingled, and not separate groups
*/
void palette1()
{
int i, j, r;
j = 1;
for ( i = 0; i < 64; i++ )
{
r = i << 2;
HAME_SetRGB8(HamePort, j++, r, r, r);
HAME_SetRGB8(HamePort, j++, r, 0, 0);
HAME_SetRGB8(HamePort, j++, 0, r, 0);
HAME_SetRGB8(HamePort, j++, 0, 0, r);
}
}
/*
Main routine
*/
int main(argc, argv)
int argc;
char *argv[];
{
ULONG msg_class;
USHORT msg_code;
int reg, i, j, finished=0;
struct IntuiMessage *message;
struct Gadget *gadget;
if ((IntuitionBase = (struct IntuitionBase *)
OpenLibrary("intuition.library",33L))==NULL)
{
CloseStuff();
}
if ((GfxBase = (struct GfxBase *)
OpenLibrary("graphics.library" , 0L))==NULL)
{
CloseStuff();
}
/* Open the hame library */
if ((HameBase = (struct Library *)
OpenLibrary("hame.library",HAMELIB_VERSION)) == NULL)
{
printf("No hame.library\n");
CloseStuff();
}
/* Get a screen to play with */
if ((screen = OpenScreen(&my_screen)) ==NULL)
{
CloseStuff();
}
my_window.Screen = screen;
/* Get a window to play with */
if ((window = OpenWindow(&my_window)) == NULL)
{
CloseStuff();
}
/* turn off the title bar */
ShowTitle(screen, 0L);
/* Tell the library where to put pixels */
if ((HamePort = HAME_Init(screen, 640, 400, 400, 0, 0, 4, 196)) == NULL)
{
CloseStuff();
}
/* Set the pallette */
palette1();
/* Keep hame from turning off because of screen wide color 0 */
DrawLeftMargin();
/* 8 bit buffer is 128 x 128 */
ptsize = 128*128;
/* Get fast memory */
ptr1 = AllocMem(ptsize, MEMF_PUBLIC|MEMF_CLEAR);
ptr2 = ptr1;
/* Create a strange pattern in the buffer */
for ( i = 0; i < 128; i++ )
{
for ( j = 0; j < 128 ; j++ )
{
*ptr2++ = ((i & ~7) << 1) + (j >> 3);
}
}
/* Render using increasingly wider and taller parameters */
for ( i = 1; i <= 128; i++ )
{
HAME_8BitRender(HamePort, ptr1, 0, 0, i, i);
}
/* Pick up the final result */
HAME_SetAPen(HamePort, 0);
clip = HAME_GetClip(HamePort, 0, 0, 128, 128);
if (!clip)
{
printf("No clip!\n");
CloseStuff();
}
/* Copy it accross and down the sreen */
for ( i = 0; i <= 3; i++ )
{
for ( j = 0; j < 2 ; j++ )
{
HAME_PutClip(HamePort, clip, (i << 7), (j << 7));
}
}
/* Wait for mouse press */
while( !finished )
{
message = (struct IntuiMessage *) GetMsg(window->UserPort);
if (message)
{
msg_class = message->Class;
msg_code = message->Code;
gadget = (struct Gadget *) message->IAddress;
ReplyMsg((struct Message *)message);
switch( msg_class )
{
case MOUSEBUTTONS:
finished = 1;
break;
case INTUITICKS:
for ( reg = 0; reg == 0; reg = rand() % 255 );
HAME_SetRGB8(HamePort, reg, rand() % 255,
rand() % 255, rand() % 255);
break;
case CLOSEWINDOW:
finished = 1;
break;
default:
printf("?");
}
}
}
while ((message = (struct IntuiMessage *)
GetMsg( window->UserPort )) != NULL)
{
ReplyMsg((struct Message *)message);
}
CloseStuff();
}