51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
#include <render/zbuffer.h>
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#include <fxengine/parameters.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <gint/display.h>
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#include <gint/std/stdio.h>
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#include <gint/std/stdlib.h>
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#include <gint/keyboard.h>
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#include <gint/defs/attributes.h>
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static const int size_uint32 = render_width * render_height;
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static const int size_char = size_uint32 * sizeof(uint32_t);
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// zbuffer et clear val sont 32B alignés pour ajouter éventuellement le DMA
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static int32_t *zbuffer = (void *)0x88080000 - (((size_char >> 5) << 5) + 1);
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// gint doesn't provide any prototype for that function which is implemented
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extern void dma_memset(void *dst, uint32_t l, size_t size);
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void render_zbuffer_clear()
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{
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uint32_t indice = 0;
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if (isSH3())
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for (indice = 0; indice < size_uint32; indice ++)
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zbuffer[indice] = render_max_dist;
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else
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dma_memset(zbuffer, render_max_dist, size_char);
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}
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bool render_zbuffer_set_px(const uint32_t x, const uint32_t y, const uint32_t dist)
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{
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const int indice = x * render_height + y;
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if (zbuffer[indice]>dist && dist>=render_min_dist && dist<=render_max_dist)
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{
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zbuffer[indice] = dist;
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return true;
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}
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return false;
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}
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