thirdparty/scummvm
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TINYGL: Unroll DRAW_SHADOW and DRAW_SHADOW_MASK.

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Also, update z in the second DRAW_SHADOW loop like it is done in the first.
Also, check each shadow mask pixel in DRAW_SHADOW, instead of 1 every 4.
This commit is contained in:
Vincent Pelletier 2016-07-22 14:49:16 +02:00
parent 9b8c5a8e06
commit cf53e8871d
1 changed files with 17 additions and 12 deletions
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29
graphics/tinygl/ztriangle.cpp
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@ -75,6 +75,14 @@ FORCEINLINE static void putPixelDepth(FrameBuffer *buffer, int buf, unsigned int
z += dzdx;
}
template <bool kDepthWrite, bool kAlphaTestEnabled, bool kEnableScissor, bool kBlendingEnabled>
FORCEINLINE static void putPixelShadow(FrameBuffer *buffer, int buf, unsigned int *pz, int _a, int x, int y, unsigned int &z, int color, int &dzdx, unsigned char *pm) {
if ((!kEnableScissor || !buffer->scissorPixel(x + _a, y)) && buffer->compareDepth(z, pz[_a]) && pm[_a]) {
buffer->writePixel<kAlphaTestEnabled, kBlendingEnabled, kDepthWrite>(buf + _a, color, z);
}
z += dzdx;
}
template <bool kDepthWrite, bool kLightsMode, bool kSmoothMode, bool kEnableAlphaTest, bool kEnableScissor, bool kEnableBlending, bool kRGB565Target>
FORCEINLINE static void putPixelTextureMappingPerspective(FrameBuffer *buffer, int buf,
Graphics::PixelFormat &textureFormat, Graphics::PixelBuffer &texture, unsigned int *pz, int _a,
@ -458,9 +466,10 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
n = (x2 >> 16) - x1;
pm = pm1 + x1;
while (n >= 3) {
for (int a = 0; a <= 3; a++) {
pm[a] = 0xff;
}
pm[0] = 0xff;
pm[1] = 0xff;
pm[2] = 0xff;
pm[3] = 0xff;
pm += 4;
n -= 4;
x += 4;
@ -485,12 +494,10 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
pz = pz1 + x1;
z = z1;
while (n >= 3) {
for (int a = 0; a < 4; a++) {
if ((!kEnableScissor || !scissorPixel(x + a, y)) && compareDepth(z, pz[a]) && pm[0]) {
writePixel<kAlphaTestEnabled, kBlendingEnabled, kDepthWrite>(buf + a, color, z);
}
z += dzdx;
}
putPixelShadow<kDepthWrite, kAlphaTestEnabled, kEnableScissor, kBlendingEnabled>(this, buf, pz, 0, x, y, z, color, dzdx, pm);
putPixelShadow<kDepthWrite, kAlphaTestEnabled, kEnableScissor, kBlendingEnabled>(this, buf, pz, 1, x, y, z, color, dzdx, pm);
putPixelShadow<kDepthWrite, kAlphaTestEnabled, kEnableScissor, kBlendingEnabled>(this, buf, pz, 2, x, y, z, color, dzdx, pm);
putPixelShadow<kDepthWrite, kAlphaTestEnabled, kEnableScissor, kBlendingEnabled>(this, buf, pz, 3, x, y, z, color, dzdx, pm);
pz += 4;
pm += 4;
buf += 4;
@ -498,9 +505,7 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
x += 4;
}
while (n >= 0) {
if ((!kEnableScissor || !scissorPixel(x, y)) && compareDepth(z, pz[0]) && pm[0]) {
writePixel<kAlphaTestEnabled, kBlendingEnabled, kDepthWrite>(buf, color, z);
}
putPixelShadow<kDepthWrite, kAlphaTestEnabled, kEnableScissor, kBlendingEnabled>(this, buf, pz, 0, x, y, z, color, dzdx, pm);
pz += 1;
pm += 1;
buf += 1;