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wiffle_screen_space: use sobel_fipr

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This commit is contained in:
Zack Buhman 2025-01-26 07:03:37 -06:00
parent 0265a1c4ed
commit 1c24f9e297
4 changed files with 34 additions and 10 deletions
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1
example/example.mk
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@ -217,6 +217,7 @@ WIFFLE_SCREEN_SPACE_OBJ = \
holly/background.o \
holly/ta_fifo_polygon_converter.o \
sh7091/serial.o \
sobel_fipr.o \
sobel.o
example/wiffle_screen_space.elf: LDSCRIPT = $(LIB)/main.lds

32
example/wiffle_screen_space.cpp
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@ -253,6 +253,8 @@ static uint32_t inbuf[640 * 480] __attribute__((aligned(32)));
static float temp[640 * 480] __attribute__((aligned(32)));
static uint32_t outbuf[640 * 480] __attribute__((aligned(32)));
extern "C" int sobel_fipr(float * a, uint32_t * i);
void make_temp()
{
for (int i = 0; i < 640 * 480; i++) {
@ -377,7 +379,7 @@ void main()
uint32_t * in = (uint32_t *)&texture_memory64[texture_memory_alloc.texture.start / 4];
//uint32_t * out = (uint32_t *)&texture_memory32[texture_memory_alloc.framebuffer[0].start / 4];
serial::string("ch1 dma start\n");
//serial::string("ch1 dma start\n");
dma_transfer((uint32_t)in, (uint32_t)inbuf, 640 * 480 * 4 / 32);
for (uint32_t i = 0; i < (sizeof (640 * 480 * 4)) / 32; i++) {
@ -389,22 +391,34 @@ void main()
}
while ((sh7091.DMAC.CHCR1 & dmac::chcr::te::transfers_completed) == 0);
serial::string("ch1 dma end\n");
//serial::string("ch1 dma end\n");
serial::string("temp start\n");
//serial::string("temp start\n");
make_temp();
serial::string("temp end\n");
//serial::string("temp end\n");
serial::string("convolve start\n");
convolve(temp, outbuf);
serial::string("convolve end\n");
//serial::string("convolve start\n");
//convolve(temp, outbuf);
int a = sobel_fipr(temp, outbuf);
//serial::integer<uint32_t>((uint32_t)temp);
//serial::integer<uint32_t>(a);
for (uint32_t i = 0; i < (sizeof (640 * 480 * 4)) / 32; i++) {
uint32_t address = (uint32_t)&outbuf[0];
asm volatile ("ocbwb @%0"
: // output
: "r" (address + (i * 32)) // input
);
}
//serial::string("convolve end\n");
uint32_t framebuffer = 0x11000000 + texture_memory_alloc.framebuffer[0].start; // TA FIFO - Direct Texture Path
system.LMMODE0 = 1;
system.LMMODE1 = 1; // 32-bit
serial::string("ch2 dma start\n");
//serial::string("ch2 dma start\n");
ch2_dma_transfer((uint32_t)outbuf, framebuffer, (640 * 480 * 4) / 32);
serial::string("ch2 dma end\n");
//serial::string("ch2 dma end\n");
while (!spg_status::vsync(holly.SPG_STATUS));
holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[0].start;

2
sobel.cpp
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@ -70,7 +70,7 @@ void convolve(float * in, uint32_t * out)
float c = kernel2(in, x, y);
int d = c > 100.f ? 0 : 0xffffffff;
out[y * 640 + x] = (uint8_t)d;
out[y * 640 + x] = d;
}
}
}

9
sobel_fipr.s
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@ -6,6 +6,10 @@ __setup:
mov.l r9,@-r15
mov.l r10,@-r15
mov.l r11,@-r15
fmov.s fr12,@-r15
fmov.s fr13,@-r15
fmov.s fr14,@-r15
fmov.s fr15,@-r15
fldi1 fr8 /* 1.0 */
fldi1 fr9 /* 2.0 */
@ -141,6 +145,11 @@ _loop_width:
/* restore registers */
_return:
fmov.s @r15+,fr15
fmov.s @r15+,fr14
fmov.s @r15+,fr13
fmov.s @r15+,fr12
mov.l @r15+,r11
mov.l @r15+,r10
mov.l @r15+,r9