141 lines
2.7 KiB
C
141 lines
2.7 KiB
C
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/*
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** thinlib (c) 2001 Matthew Conte (matt@conte.com)
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**
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**
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** tl_video.h
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**
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** thinlib video routines
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**
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** $Id: $
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*/
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#include "tl_types.h"
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#include "tl_video.h"
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#include "tl_vesa.h"
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#include "tl_vga.h"
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#include "tl_log.h"
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typedef struct viddriver_s
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{
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const char *name;
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int (*init)(int width, int height, int bpp, int param);
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void (*shutdown)(void);
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int (*setmode)(int width, int height, int bpp);
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void (*setpalette)(rgb_t *palette, int index, int length);
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void (*waitvsync)(void);
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bitmap_t *(*lock)(void);
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void (*free)(int num_dirties, rect_t *dirty_rects);
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void (*blit)(bitmap_t *primary, int num_dirties, rect_t *dirty_rects);
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int caps;
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} viddriver_t;
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static viddriver_t vesa =
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{
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"VESA 3.0 LFB",
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thin_vesa_init,
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thin_vesa_shutdown,
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thin_vesa_setmode,
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thin_vga_setpalette,
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thin_vga_waitvsync,
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thin_vesa_lockwrite,
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thin_vesa_freewrite,
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NULL,
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0,
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};
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static viddriver_t vga =
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{
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"VGA",
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thin_vga_init,
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thin_vga_shutdown,
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thin_vga_setmode,
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thin_vga_setpalette,
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thin_vga_waitvsync,
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thin_vga_lockwrite,
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thin_vga_freewrite,
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NULL,
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0, /*THIN_VIDEO_SCANLINES,*/
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};
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static viddriver_t *driver_list[] =
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{
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&vesa,
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&vga,
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NULL
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};
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static viddriver_t driver;
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int thin_vid_init(int width, int height, int bpp, int param)
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{
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/* cascade driver checks by iterating through all drivers */
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viddriver_t **iter;
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for (iter = driver_list; *iter != NULL; iter++)
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{
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if (0 == (*iter)->init(width, height, bpp, param))
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{
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driver = **iter;
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return 0;
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}
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}
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driver.name = NULL;
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thin_printf("thinlib.video: could not find any matching video modes.\n");
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return -1;
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}
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void thin_vid_shutdown(void)
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{
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if (NULL != driver.name)
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{
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driver.shutdown();
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memset(&driver, 0, sizeof(viddriver_t));
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}
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}
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int thin_vid_getcaps(void)
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{
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return driver.caps;
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}
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int thin_vid_setmode(int width, int height, int bpp)
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{
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if (driver.setmode(width, height, bpp))
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{
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thin_printf("thinlib.video: could not set %s video mode %dx%d %dbpp\n",
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driver.name, width, height, bpp);
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return -1;
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}
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return 0;
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}
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void thin_vid_setpalette(rgb_t *palette, int index, int length)
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{
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driver.setpalette(palette, index, length);
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}
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bitmap_t *thin_vid_lockwrite(void)
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{
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return driver.lock();
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}
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void thin_vid_freewrite(int num_dirties, rect_t *dirty_rects)
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{
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if (NULL != driver.free)
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driver.free(num_dirties, dirty_rects);
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}
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void thin_vid_customblit(bitmap_t *primary, int num_dirties,
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rect_t *dirty_rects)
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{
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THIN_ASSERT(driver.blit);
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driver.blit(primary, num_dirties, dirty_rects);
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}
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/*
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** $Log: $
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*/
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