forked from Lephenixnoir/gint
Lephe
94fb300e72
* Define dgray() to replace gray_start() and gray_stop()
* Introduce a mechanism to override the d*() functions rather than using
another set of functions, namely g*(). Gray rendering should now be
done with d*() (a compatibility macro for g*() is available until v2.1).
* Gray engine now reserves TMU0 at the start of the add-in to prevent
surprises if timers are exhausted, so it nevers fails to start
* Replace other gray engine functions with dgray_*()
* More general rendering functions (in render/) to lessen the burden of
porting them to the gray engine. As a consequence, dtext_opt(),
dprint_opt() and drect_border() are now available in the gray engine,
which was an omission from 230b796.
* Allow C_NONE in more functions, mainly on fx-CG 50
* Remove the now-unused dupdate_noint()
43 lines
967 B
C
43 lines
967 B
C
#include <gint/defs/util.h>
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#include <gint/display.h>
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/* drect() - fill a rectangle of the screen */
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void drect(int x1, int y1, int x2, int y2, int color)
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{
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if(color == C_NONE) return;
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if(x1 > x2) swap(x1, x2);
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if(y1 > y2) swap(y1, y2);
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/* Order and bounds */
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if(x1 >= 396 || x2 < 0 || y1 >= 224 || y2 < 0) return;
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if(x1 < 0) x1 = 0;
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if(x2 >= 396) x2 = 395;
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if(y1 < 0) y1 = 0;
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if(y2 >= 224) y2 = 223;
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/* The method is exactly like dhline(). I first handle odd endpoints,
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then write longwords for the longest section */
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uint16_t *base = gint_vram + 396 * y1;
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int height = y2 - y1 + 1;
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/* Now copy everything that's left as longwords */
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int ax1 = x1 + (x1 & 1);
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int ax2 = (x2 + 1) & ~1;
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uint32_t *v = (void *)(base + ax1);
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uint32_t op = (color << 16) | color;
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int width = (ax2 - ax1) >> 1;
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for(int h = height; h; h--)
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{
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base[x1] = color;
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base[x2] = color;
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for(int w = 0; w < width; w++) v[w] = op;
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v += 198;
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base += 396;
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}
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}
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