forked from Lephenixnoir/gint
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
//---
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// gint:display - Drawing functions
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//---
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#ifndef GINT_DISPLAY
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#define GINT_DISPLAY
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#include <gint/defs/types.h>
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/* Expose the VRAM variable if GINT_NEED_VRAM is defined. This address is used
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as the VRAM basis by all of gint's drawing functions, and must point to a
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suitable buffer:
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[fx9860g] A 4-aligned buffer of size 1024.
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[fxcg50] A 4-aligned buffer of size 177408.
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This variable is primarily meant to be exposed to gint functions, but
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add-ins may use it or change it freely:
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- To use another video ram area (triple buffering or more, gray engine);
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- To implement additional drawing functions;
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- When not drawing, as additional RAM (especially on fxcg50). */
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#ifdef GINT_NEED_VRAM
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extern uint32_t *vram;
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#endif
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/* As you would expect, display on fx9860g and display on fxcg50 are completely
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different worlds. As a consequence, so are the rendering functions ^^ */
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#ifdef FX9860G
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#include <gint/display-fx.h>
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#endif
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#ifdef FXCG50
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#include <gint/display-cg.h>
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#endif
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//---
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// Parameter access
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//---
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/* dinfo_t - summary of information provided by this module */
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typedef struct
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{
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/* Screen width, in pixels */
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int width;
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/* Screen height, in pixels */
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int height;
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/* Color depth (is 1 on fx9860g regardless of the gray engine) */
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int bpp;
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/* Current rendering font */
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font_t const * font;
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} dinfo_t;
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/* dinfo() - retrieve information from the display module
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This function returns the value of most parameters of the display module.
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@info Pointer to allocated dinfo_t structure, will be filled. */
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void dinfo(dinfo_t *info);
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#endif /* GINT_DISPLAY */
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