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Mandelbrot: Set the pixels in the Render functions.

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This commit is contained in:
Augustin Cavalier 2016-05-27 20:48:39 -04:00
parent 9daf130b6d
commit 35e590e3d1
2 changed files with 22 additions and 27 deletions
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43
src/apps/mandelbrot/FractalEngine.cpp
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@ -78,13 +78,6 @@ double zImaginary_end = 0;
double juliaC_a = 0;
double juliaC_b = 1;
uint8 r = 0;
uint8 g = 0;
uint8 b = 0;
uint8 logChecked = 0;
uint8 smoothChecked = 0;
uint8 gEscapeHorizon = 4; // set to 64 when doing smooth colors
int32 gIterations = 1024;
@ -92,7 +85,13 @@ int32 gIterations = 1024;
double gPower = 0;
void FractalEngine::RenderPixelDefault(double real, double imaginary)
#define RenderBuffer_SetPixel(x, y, r, g, b) \
uint32 _BUF_BASE = fWidth * y * 3 + x * 3; \
fRenderBuffer[_BUF_BASE + 0] = r; \
fRenderBuffer[_BUF_BASE + 1] = g; \
fRenderBuffer[_BUF_BASE + 2] = b
void FractalEngine::RenderPixelDefault(uint32 x, uint32 y, double real,
double imaginary)
{
int32 iterToEscape = (this->*fDoSet)(real, imaginary);
uint16 loc = 0;
@ -103,13 +102,13 @@ void FractalEngine::RenderPixelDefault(double real, double imaginary)
loc = 998 - (iterToEscape % 999);
}
r = fColorset[loc * 3 + 0];
g = fColorset[loc * 3 + 1];
b = fColorset[loc * 3 + 2];
RenderBuffer_SetPixel(x, y, fColorset[loc * 3 + 0], fColorset[loc * 3 + 1],
fColorset[loc * 3 + 2]);
}
void FractalEngine::RenderPixelSmooth(double real, double imaginary)
void FractalEngine::RenderPixelSmooth(uint32 x, uint32 y, double real,
double imaginary)
{
int32 outColor = (this->*fDoSet)(real, imaginary);
int8 mapperDiff_r = 0;
@ -128,9 +127,8 @@ void FractalEngine::RenderPixelSmooth(double real, double imaginary)
}
if (outColor == -1) {
r = fColorset[999 * 3];
g = fColorset[999 * 3 + 1];
b = fColorset[999 * 3 + 2];
RenderBuffer_SetPixel(x, y, fColorset[999 * 3], fColorset[999 * 3 + 1],
fColorset[999 * 3 + 2]);
return;
}
outColor = 998 - (outColor % 999);
@ -141,10 +139,11 @@ void FractalEngine::RenderPixelSmooth(double real, double imaginary)
mapperDiff_g = fColorset[mapperLoc + 1] - fColorset[mapperLoc + 1 + 3];
mapperDiff_b = fColorset[mapperLoc + 2] - fColorset[mapperLoc + 2 + 3];
r = mapperDiff_r * ratio + fColorset[mapperLoc + 0];
g = mapperDiff_g * ratio + fColorset[mapperLoc + 1];
b = mapperDiff_b * ratio + fColorset[mapperLoc + 2];
RenderBuffer_SetPixel(x, y, mapperDiff_r * ratio + fColorset[mapperLoc + 0],
mapperDiff_g * ratio + fColorset[mapperLoc + 1],
mapperDiff_b * ratio + fColorset[mapperLoc + 2]);
}
#undef RenderBuffer_SetPixel
int32 FractalEngine::DoSet_Mandelbrot(double real, double imaginary)
@ -361,10 +360,6 @@ int32 FractalEngine::DoSet_Multibrot(double real, double imaginary)
}
#define buf_SetPixel(x, y, r, g, b) \
fRenderBuffer[fWidth * y * 3 + x * 3 + 0] = r; \
fRenderBuffer[fWidth * y * 3 + x * 3 + 1] = g; \
fRenderBuffer[fWidth * y * 3 + x * 3 + 2] = b;
void FractalEngine::Render(double locationX, double locationY, double size)
{
uint16 halfWidth = fWidth / 2;
@ -372,9 +367,9 @@ void FractalEngine::Render(double locationX, double locationY, double size)
for (uint32 x = 0; x < fWidth; x++) {
for (uint32 y = 0; y < fHeight; y++) {
(this->*fRenderPixel)((x * size + locationX) - (halfWidth * size),
(this->*fRenderPixel)(x, y,
(x * size + locationX) - (halfWidth * size),
(y * -size + locationY) - (halfHeight * -size));
buf_SetPixel(x, y, r, g, b);
}
}

6
src/apps/mandelbrot/FractalEngine.h
View File

@ -41,11 +41,11 @@ private:
const uint8* fColorset;
int32 (FractalEngine::*fDoSet)(double real, double imaginary);
void (FractalEngine::*fRenderPixel)(double real, double imaginary);
void (FractalEngine::*fRenderPixel)(uint32 x, uint32 y, double real, double imaginary);
void Render(double locationX, double locationY, double size);
void RenderPixelSmooth(double real, double imaginary);
void RenderPixelDefault(double real, double imaginary);
void RenderPixelDefault(uint32 x, uint32 y, double real, double imaginary);
void RenderPixelSmooth(uint32 x, uint32 y, double real, double imaginary);
int32 DoSet_Mandelbrot(double real, double imaginary);
int32 DoSet_BurningShip(double real, double imaginary);
int32 DoSet_Tricorn(double real, double imaginary);