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DEMO3.C
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DEMO3.C
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#include <stdio.h>
#include <string.h>
#include "vbe.h"
#include "gfx.h"
#include "pcx.h"
/*
* Demo runs for 8/15/16/24/32-BPP as follows
*
* A = 8-BPP PCX
* B = 24-BPP PCX
*
* --------------
* |AA BB| <-- Non-Clipped
* |AA BB|
* | |
* | A B | <-- Clipped
* | |
* --------------
*
* Waits for a keypress
*/
char demo3_WaitKey( void );
#pragma aux demo3_WaitKey=\
" xor ax, ax"\
" int 0x16"\
value[al];
void demo3_Run8( uint32_t p_width, uint32_t p_height )
{
vbectx_t* l_ctx;
image_t* l_img8;
image_t* l_img24;
pal4_t l_pal;
uint32_t l_mode;
int32_t l_clipX1;
int32_t l_clipY1;
int32_t l_clipX2;
int32_t l_clipY2;
int32_t l_x;
int32_t l_y;
int l_i;
l_mode = vbe_FindMode(p_width, p_height, 8);
l_ctx = vbe_SetMode( l_mode );
if( l_ctx )
{
// Load 8-BPP and 24-BPP PCX for comparison
l_img8 = pcx_LoadImage(l_ctx, "FMP8.PCX", l_pal);
l_img24 = pcx_LoadImage(l_ctx, "FMP24.PCX", NULL);
// Set VBE palette to PCX palette
vbe_SetPal( l_ctx, l_pal );
// Draw 8-BPP PCX to upper left corner
l_x = 0;
l_y = 0;
gfx_PutImage8( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to upper right corner
l_x = l_ctx->width - l_img24->width;
l_y = 0;
gfx_PutImage8( l_ctx, l_x, l_y, l_img24 );
// Set clip boundaries for next two images,
// based on 8-BPP PCX bounds
l_clipX1 = 0 + (l_img8->width / 2);
l_clipY1 = 0 + (l_img8->height / 2);
l_clipX2 = l_ctx->width - (l_img8->width / 2);
l_clipY2 = l_ctx->height - (l_img8->height / 2);
vbe_SetClip( l_ctx,
l_clipX1, l_clipY1, l_clipX2, l_clipY2 );
// Draw 8-BPP PCX to lower left corner
l_x = 0;
l_y = l_ctx->height - l_img8->height;
gfx_PutImage8( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to lower right corner
l_x = l_ctx->width - l_img24->width;
l_y = l_ctx->height - l_img24->height;
gfx_PutImage8( l_ctx, l_x, l_y, l_img24 );
demo3_WaitKey();
gfx_FreeImage( &l_img8 );
gfx_FreeImage( &l_img24 );
vbe_CloseMode( &l_ctx );
}
else
{
printf( "VBE mode %#.4x not supported\n", l_mode );
printf( "\n" );
}
}
void demo3_Run15( uint32_t p_width, uint32_t p_height )
{
vbectx_t* l_ctx;
image_t* l_img8;
image_t* l_img24;
uint32_t l_mode;
int32_t l_clipX1;
int32_t l_clipY1;
int32_t l_clipX2;
int32_t l_clipY2;
int32_t l_x;
int32_t l_y;
int l_i;
l_mode = vbe_FindMode(p_width, p_height, 15);
l_ctx = vbe_SetMode( l_mode );
if( l_ctx )
{
l_img8 = pcx_LoadImage(l_ctx, "FMP8.PCX", NULL);
l_img24 = pcx_LoadImage(l_ctx, "FMP24.PCX", NULL);
// Draw 8-BPP PCX to upper left corner
l_x = 0;
l_y = 0;
gfx_PutImage16( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to upper right corner
l_x = l_ctx->width - l_img24->width;
l_y = 0;
gfx_PutImage16( l_ctx, l_x, l_y, l_img24 );
// Set clip boundaries for next two images,
// based on 8-BPP PCX bounds
l_clipX1 = 0 + (l_img8->width / 2);
l_clipY1 = 0 + (l_img8->height / 2);
l_clipX2 = l_ctx->width - (l_img8->width / 2);
l_clipY2 = l_ctx->height - (l_img8->height / 2);
vbe_SetClip( l_ctx,
l_clipX1, l_clipY1, l_clipX2, l_clipY2 );
// Draw 8-BPP PCX to lower left corner
l_x = 0;
l_y = l_ctx->height - l_img8->height;
gfx_PutImage16( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to lower right corner
l_x = l_ctx->width - l_img24->width;
l_y = l_ctx->height - l_img24->height;
gfx_PutImage16( l_ctx, l_x, l_y, l_img24 );
demo3_WaitKey();
gfx_FreeImage( &l_img8 );
gfx_FreeImage( &l_img24 );
vbe_CloseMode( &l_ctx );
}
else
{
printf( "VBE mode %#.4x not supported\n", l_mode );
printf( "\n" );
}
}
void demo3_Run16( uint32_t p_width, uint32_t p_height )
{
vbectx_t* l_ctx;
image_t* l_img8;
image_t* l_img24;
uint32_t l_mode;
int32_t l_clipX1;
int32_t l_clipY1;
int32_t l_clipX2;
int32_t l_clipY2;
int32_t l_x;
int32_t l_y;
int l_i;
l_mode = vbe_FindMode(p_width, p_height, 16);
l_ctx = vbe_SetMode( l_mode );
if( l_ctx )
{
l_img8 = pcx_LoadImage(l_ctx, "FMP8.PCX", NULL);
l_img24 = pcx_LoadImage(l_ctx, "FMP24.PCX", NULL);
// Draw 8-BPP PCX to upper left corner
l_x = 0;
l_y = 0;
gfx_PutImage16( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to upper right corner
l_x = l_ctx->width - l_img24->width;
l_y = 0;
gfx_PutImage16( l_ctx, l_x, l_y, l_img24 );
// Set clip boundaries for next two images,
// based on 8-BPP PCX bounds
l_clipX1 = 0 + (l_img8->width / 2);
l_clipY1 = 0 + (l_img8->height / 2);
l_clipX2 = l_ctx->width - (l_img8->width / 2);
l_clipY2 = l_ctx->height - (l_img8->height / 2);
vbe_SetClip( l_ctx,
l_clipX1, l_clipY1, l_clipX2, l_clipY2 );
// Draw 8-BPP PCX to lower left corner
l_x = 0;
l_y = l_ctx->height - l_img8->height;
gfx_PutImage16( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to lower right corner
l_x = l_ctx->width - l_img24->width;
l_y = l_ctx->height - l_img24->height;
gfx_PutImage16( l_ctx, l_x, l_y, l_img24 );
demo3_WaitKey();
gfx_FreeImage( &l_img8 );
gfx_FreeImage( &l_img24 );
vbe_CloseMode( &l_ctx );
}
else
{
printf( "VBE mode %#.4x not supported\n", l_mode );
printf( "\n" );
}
}
void demo3_Run24( uint32_t p_width, uint32_t p_height )
{
vbectx_t* l_ctx;
image_t* l_img8;
image_t* l_img24;
uint32_t l_mode;
int32_t l_clipX1;
int32_t l_clipY1;
int32_t l_clipX2;
int32_t l_clipY2;
int32_t l_x;
int32_t l_y;
int l_i;
l_mode = vbe_FindMode(p_width, p_height, 24);
l_ctx = vbe_SetMode( l_mode );
if( l_ctx )
{
l_img8 = pcx_LoadImage(l_ctx, "FMP8.PCX", NULL);
l_img24 = pcx_LoadImage(l_ctx, "FMP24.PCX", NULL);
// Draw 8-BPP PCX to upper left corner
l_x = 0;
l_y = 0;
gfx_PutImage24( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to upper right corner
l_x = l_ctx->width - l_img24->width;
l_y = 0;
gfx_PutImage24( l_ctx, l_x, l_y, l_img24 );
// Set clip boundaries for next two images,
// based on 8-BPP PCX bounds
l_clipX1 = 0 + (l_img8->width / 2);
l_clipY1 = 0 + (l_img8->height / 2);
l_clipX2 = l_ctx->width - (l_img8->width / 2);
l_clipY2 = l_ctx->height - (l_img8->height / 2);
vbe_SetClip( l_ctx,
l_clipX1, l_clipY1, l_clipX2, l_clipY2 );
// Draw 8-BPP PCX to lower left corner
l_x = 0;
l_y = l_ctx->height - l_img8->height;
gfx_PutImage24( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to lower right corner
l_x = l_ctx->width - l_img24->width;
l_y = l_ctx->height - l_img24->height;
gfx_PutImage24( l_ctx, l_x, l_y, l_img24 );
demo3_WaitKey();
gfx_FreeImage( &l_img8 );
gfx_FreeImage( &l_img24 );
vbe_CloseMode( &l_ctx );
}
else
{
printf( "VBE mode %#.4x not supported\n", l_mode );
printf( "\n" );
}
}
void demo3_Run32( uint32_t p_width, uint32_t p_height )
{
vbectx_t* l_ctx;
image_t* l_img8;
image_t* l_img24;
uint32_t l_mode;
int32_t l_clipX1;
int32_t l_clipY1;
int32_t l_clipX2;
int32_t l_clipY2;
int32_t l_x;
int32_t l_y;
int l_i;
l_mode = vbe_FindMode(p_width, p_height, 32);
l_ctx = vbe_SetMode( l_mode );
if( l_ctx )
{
l_img8 = pcx_LoadImage(l_ctx, "FMP8.PCX", NULL);
l_img24 = pcx_LoadImage(l_ctx, "FMP24.PCX", NULL);
// Draw 8-BPP PCX to upper left corner
l_x = 0;
l_y = 0;
gfx_PutImage32( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to upper right corner
l_x = l_ctx->width - l_img24->width;
l_y = 0;
gfx_PutImage32( l_ctx, l_x, l_y, l_img24 );
// Set clip boundaries for next two images,
// based on 8-BPP PCX bounds
l_clipX1 = 0 + (l_img8->width / 2);
l_clipY1 = 0 + (l_img8->height / 2);
l_clipX2 = l_ctx->width - (l_img8->width / 2);
l_clipY2 = l_ctx->height - (l_img8->height / 2);
vbe_SetClip( l_ctx,
l_clipX1, l_clipY1, l_clipX2, l_clipY2 );
// Draw 8-BPP PCX to lower left corner
l_x = 0;
l_y = l_ctx->height - l_img8->height;
gfx_PutImage32( l_ctx, l_x, l_y, l_img8 );
// Draw 24-BPP PCX to lower right corner
l_x = l_ctx->width - l_img24->width;
l_y = l_ctx->height - l_img24->height;
gfx_PutImage32( l_ctx, l_x, l_y, l_img24 );
demo3_WaitKey();
gfx_FreeImage( &l_img8 );
gfx_FreeImage( &l_img24 );
vbe_CloseMode( &l_ctx );
}
else
{
printf( "VBE mode %#.4x not supported\n", l_mode );
printf( "\n" );
}
}
int main( int argc, char* argv[] )
{
uint32_t l_demoWidth;
uint32_t l_demoHeight;
if( vbe_Init() == 0 )
{
printf( "ERROR: VBE driver not supported.\n" );
return 0;
}
l_demoWidth = 640;
l_demoHeight = 480;
demo3_Run8( l_demoWidth, l_demoHeight );
demo3_Run15( l_demoWidth, l_demoHeight );
demo3_Run16( l_demoWidth, l_demoHeight );
demo3_Run24( l_demoWidth, l_demoHeight );
demo3_Run32( l_demoWidth, l_demoHeight );
vbe_Done( NULL );
return 0;
}