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99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/* Routines for setting up structures for the Super VMW graphics library */
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#include "svmwgraph.h"
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#include "sdl_svmwgraph.h" /* Make this dynamic somehow? */
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#include <stdio.h> /* For printf */
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#include <stdlib.h> /* For Memory Allocation */
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void *(*vmwSetupGraphics)(int *xsize,int *ysize, int *bpp,
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int fullscreen,int verbose);
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void (*vmwBlitMemToDisplay)(vmwSVMWGraphState *display, vmwVisual *source);
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void (*vmwWritePaletteColor)(vmwSVMWGraphState *state,
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unsigned char r,unsigned char g,unsigned char b,int color);
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void (*vmwClearKeyboardBuffer)(void);
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int (*vmwGetInput)(void);
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vmwSVMWGraphState *vmwSetupSVMWGraph(int display_type,int xsize,int ysize,
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int bpp,int scale,int fullscreen,
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int verbose) {
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vmwSVMWGraphState *temp_state;
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if ( (temp_state=calloc(1,sizeof(vmwSVMWGraphState)) )==NULL) {
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printf("Error allocating memory!\n");
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return NULL;
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}
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/* Setup Setup routines */
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switch (display_type) {
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case VMW_SDLTARGET: vmwSetupGraphics=SDL_setupGraphics;
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break;
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default: printf("ERROR! Unknown Display Target %i.\n",display_type);
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return NULL;
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}
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temp_state->bpp=bpp;
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temp_state->xsize=xsize;
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temp_state->ysize=ysize;
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temp_state->scale=scale;
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temp_state->default_font=NULL;
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temp_state->palette_size=256;
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if ( (temp_state->palette=calloc(temp_state->palette_size,sizeof(int)) )==NULL) {
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printf("Error allocating palette of size %i!\n",temp_state->palette_size);
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return NULL;
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}
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/* Attempt to get desired graphics state */
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temp_state->output_screen=vmwSetupGraphics(&temp_state->xsize,
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&temp_state->ysize,
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&temp_state->bpp,
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fullscreen,verbose);
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/* Setup proper blitter and others*/
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switch (display_type) {
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case VMW_SDLTARGET:
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if (temp_state->bpp==8) {
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vmwBlitMemToDisplay=SDL_NoScale8bpp_BlitMem;
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}
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if (temp_state->bpp>=16) {
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if (scale==1) {
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vmwBlitMemToDisplay=SDL_NoScale16bpp_BlitMem;
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} else {
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vmwBlitMemToDisplay=SDL_Double16bpp_BlitMem;
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}
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}
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vmwWritePaletteColor=SDL_WritePaletteColor;
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vmwClearKeyboardBuffer=SDL_clearKeyboardBuffer;
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vmwGetInput=SDL_getInput;
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break;
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default: printf("ERROR! Unknown Display Target %i.\n",display_type);
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return NULL;
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}
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return temp_state;
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}
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vmwVisual *vmwSetupVisual(int xsize,int ysize) {
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vmwVisual *temp_visual;
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if ( (temp_visual=calloc(1,sizeof(vmwVisual)) )==NULL) {
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printf("Error allocating memory for visual!\n");
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return NULL;
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}
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temp_visual->xsize=xsize;
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temp_visual->ysize=ysize;
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if ( (temp_visual->memory=
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calloc(xsize*ysize,sizeof(unsigned char)) )==NULL) {
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printf("Error allocating %i x %i visual memory!\n",xsize,ysize);
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return NULL;
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}
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return temp_visual;
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}
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