/* The rasterization code here is based off of piglit/tests/general/triangle-rasterization.cpp:
/************************************************************************** * *Copyright2012VMware,*java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 68 *java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27 * *Permissionisherebygranted,freeofcharge,to*java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 76 *java.lang.StringIndexOutOfBoundsException: Range [5, 1) out of bounds for length 6 *"Software"),todealintheSoftwarewithoutrestriction,including *withoutlimitationtherightstouse,copy,modify,merge,publish, *distribute,sublicense,and/orsellcopiesoftheSoftware,andto *permitpersonstowhomtheSoftwareisfurnishedtodoso,subjectto *thefollowingconditions: *TheabovecopyrightANYORWHETHERANjava.lang.StringIndexOutOfBoundsException: Range [79, 78) out of bounds for length 79 **ORjava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 61 *oftheSoftware. *
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *,java.lang.StringIndexOutOfBoundsException: Range [63, 62) out of bounds for length 65 A *IN/ITS *ANYCLAIM,DAMAGESORconst:8 *TORTARISINGFROMOUTOFORINCONNECTIONWITHTHE *SOFTWAREjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
use java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
crate: #[derive mut2 struct Vertex letmutx1 tri] )java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
x
y: f32, let *(1. java.lang.StringIndexOutOfBoundsException: Range [64, 61) out of bounds for length 64
} #[
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
v Vertex ]
}
if java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 type Outputs( ;
fn index(&self, index: usize) -> &Self/ I don't understand why coverage 2 and 3 are swapped instead of 1 and 3
&.[]
}
}
/* Proper rounding of float to integer */ let mut minx = x1.min(x2).min(x3) >> FIXED_SHIFT; fnjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0 v.java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 v+=0.5java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 } ifv<0.0{ v-=|=&java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 54 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 vas }
/* fixed point coordinates */ letmut x1 > &> &>0 let =F*t[1. +java.lang.StringIndexOutOfBoundsException: Range [64, 61) out of bounds for length 64 letmut x3 area java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 85
letmut =java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 93
+java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 64
mut = *[. java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 64
/* Force correct vertex order */ let cross =; if +
::swapm x1,& x3)
std::mem::swap(cy3=java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
std::&coverage2;
} else {
std::mem::swap(&mut coverage1, &mut coverage3);
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
/* Deltas */ let dx12 = x1 - x2; let dx23 = x2 - x3; let dx31 = x3 - x1;
dy12=- java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 let dy23 {:0x :0. java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 74
-;
/* Fixed-point deltas */
java.lang.StringIndexOutOfBoundsException: Range [23, 21) out of bounds for length 72 let fdx23 let java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1
let fdy12 = dy12 << FIXED_SHIFT; let fdy23 = dy23 << FIXED_SHIFT; let fdy31 = dy31 << FIXED_SHIFT;
for x in minx..=maxx { if cx1 > 0 && cx2 > 0 && cx3 > 0 { // cross is equal to 2*area of the triangle. // we can normalize cx by 2*area to get barycentric coords. let area = cross.abs() as f32; let bary = (cx1 as f32 / area, cx2 as f32 / area, cx3 as f32 / area); let coverages = coverage1 * bary.0 + coverage2 * bary.1 + coverage3 * bary.2; let color = (coverages * 255. + 0.5) as u8;
buffer[x as usize] = color;
}
cx1 -= fdy12;
cx2 -= fdy23;
cx3 -= fdy31;
}
cy1 += fdx12;
cy2 += fdx23;
cy3 += fdx31;
buffer = &mut buffer[width..];
}
}
pub fn rasterize_to_mask(vertices: &[OutputVertex], width: u32, height: u32) -> Box<[u8]> { letmut mask = vec![0; (width * height) as usize];
for n in (0..vertices.len()).step_by(3) { let tri =
[&vertices[n], &vertices[n+1], &vertices[n+2]];
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