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buffer examples compile

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This commit is contained in:
Michael Miller
2024-04-12 22:58:44 -07:00
parent 50bfc2f44e
commit c81721e595
13 changed files with 108 additions and 268 deletions
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4
examples/bitmaps/NeoPixelBitmap/NeoPixelBitmap.ino
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@@ -14,7 +14,7 @@
#include <SPI.h>
#include <SD.h>
const int chipSelect = D8; // make sure to set this to your SD carder reader CS
const int chipSelect = 8; // make sure to set this to your SD carder reader CS
//typedef NeoGrbFeature MyPixelColorFeature;
typedef NeoGrbwFeature MyPixelColorFeature;
@@ -30,7 +30,7 @@ NeoPixelAnimator animations(AnimCount); // NeoPixel animation management object
// our NeoBitmapFile will use the same color feature as NeoPixelBus and
// we want it to use the SD File object
NeoBitmapFile<MyPixelColorFeature, File> image;
NeoBitmapFile<MyPixelColorFeature::ColorObject, File> image;
uint16_t animState;

11
examples/bitmaps/NeoPixelBufferCylon/NeoPixelBufferCylon.ino
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@@ -28,11 +28,11 @@ NeoPixelBus<MyPixelColorFeature, NeoWs2812xMethod> strip(PixelCount, PixelPin);
NeoPixelAnimator animations(AnimCount); // NeoPixel animation management object
// sprite sheet stored in progmem using the same pixel feature as the NeoPixelBus
NeoVerticalSpriteSheet<NeoBufferProgmemMethod<MyPixelColorFeature>> spriteSheet(
myImageWidth, // image width and sprite width since its vertical sprite sheet
myImageHeight, // image height
1, // sprite is only one pixel high
myImage);
NeoVerticalSpriteSheet<NeoBufferProgmemMethod<MyPixelColorFeature::ColorObject>> spriteSheet(
myImageWidth, // image width and sprite width since its vertical sprite sheet
myImageHeight, // image height
1, // sprite is only one pixel high
myImage);
uint16_t indexSprite;
@@ -71,4 +71,3 @@ void loop()
animations.UpdateAnimations();
strip.Show();
}

115
examples/bitmaps/NeoPixelBufferShader/NeoPixelBufferShader.ino
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@@ -1,7 +1,7 @@
// NeoPixelBufferShader
// This example will provide a shader class to the NeoPixelBuffer that will dim and brighten
// the pixels that are in the buffer (a device dependent bitmap)
//
// the pixels that are in the buffer (a device independant bitmap)
// It is just a demonstration of using a custom shader
#include <NeoPixelBus.h>
@@ -14,7 +14,7 @@ NeoPixelBus<NeoGrbFeature, NeoWs2812xMethod> strip(PixelCount, PixelPin);
// the buffer object,
// defined to use memory with the same feature as the strip
// initialized with the same number of pixels as our strip
NeoBuffer<NeoBufferMethod<NeoGrbFeature>> image(8,8,NULL);
NeoBuffer<NeoBufferMethod<RgbColor>> image(8, 8, NULL);
const RgbColor BrightRed(255, 0, 0);
const RgbColor BrightGreen(0, 255, 0);
@@ -36,53 +36,40 @@ const RgbColor White(255);
const RgbColor Black(0);
// define a custom shader object that provides brightness support
// based upon the NeoShaderBase
template<typename T_COLOR_FEATURE> class BrightnessShader : public NeoShaderBase
class BrightnessShader
{
public:
BrightnessShader():
NeoShaderBase(),
_brightness(255) // default to full bright
{}
BrightnessShader() :
_brightness(255) // default to full bright
{}
// required for a shader object, it will be called for
// every pixel
void Apply(uint16_t index, uint8_t* pDest, const uint8_t* pSrc)
{
// we don't care what the index is so we ignore it
//
// to apply our brightness shader,
// use the source color, modify, and apply to the destination
// for every byte in the pixel,
// scale the source value by the brightness and
// store it in the destination byte
const uint8_t* pSrcEnd = pSrc + T_COLOR_FEATURE::PixelSize;
while (pSrc != pSrcEnd)
// required for a shader object, it will be called for
// every pixel
RgbColor Apply(const RgbColor& color)
{
*pDest++ = (*pSrc++ * (uint16_t(_brightness) + 1)) >> 8;
// to apply our brightness shader,
// use the source color, modify, and return it
return color.Dim(_brightness);
}
}
// provide an accessor to set brightness
void setBrightness(uint8_t brightness)
{
_brightness = brightness;
Dirty(); // must call dirty when a property changes
}
// provide an accessor to set brightness
void setBrightness(uint8_t brightness)
{
_brightness = brightness;
}
// provide an accessor to get brightness
uint8_t getBrightness()
{
return _brightness;
}
// provide an accessor to get brightness
uint8_t getBrightness()
{
return _brightness;
}
private:
uint8_t _brightness;
uint8_t _brightness;
};
// create an instance of our shader object with the same feature as our buffer
BrightnessShader<NeoGrbFeature> shader;
// create an instance of our shader object
BrightnessShader shader;
// some dimming tracking variables and settings
int8_t delta;
@@ -132,36 +119,32 @@ void setup()
void loop()
{
// we increment by delta every 30ms
delay(30);
// we increment by delta every 30ms
delay(30);
// update the brightness in shader
//
uint8_t brightness = shader.getBrightness();
// check if we flip directions
if (brightness == 0)
{
delta = 1; // increment
}
else if (brightness == 255)
{
delta = -1; // decrement
}
// modify and apply
brightness += delta;
shader.setBrightness(brightness);
// update the brightness in shader
//
uint8_t brightness = shader.getBrightness();
// check if we flip directions
if (brightness == 0)
{
delta = 1; // increment
}
else if (brightness == 255)
{
delta = -1; // decrement
}
// modify and apply
brightness += delta;
shader.setBrightness(brightness);
Serial.println(brightness);
Serial.println(brightness);
// render the image using the shader and then call Show()
// these two should be called together in order
//
// need to provide the type of color feature for the strip and
// the type of our custom shader
image.Render<BrightnessShader<NeoGrbFeature>>(strip, shader);
strip.Show();
// render the image using the shader and then call Show()
// these two should be called together in order
//
image.Render<BrightnessShader>(strip, shader);
strip.Show();
}

158
examples/bitmaps/NeoPixelDibTest/NeoPixelDibTest.ino
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@@ -1,158 +0,0 @@
// NeoPixelDibTest
// This example will provide a shader class to the NeoPixelDib that will dim and brighten
// the pixels that are in the Dib (Device Independant Bitmap)
//
#include <NeoPixelBus.h>
const uint16_t PixelCount = 64; // set this to the size of your strip
const uint8_t PixelPin = 2; // make sure to set this to the correct pin, ignored for Esp8266
// three element GRB pixels, change to your needs
NeoPixelBus<NeoGrbFeature, NeoWs2812xMethod> strip(PixelCount, PixelPin);
// the DIB object, using RgbColor and initialized with the same number of pixels as our strip
NeoDib<RgbColor> image(PixelCount);
const RgbColor BrightRed(255, 0, 0);
const RgbColor BrightGreen(0, 255, 0);
const RgbColor BrightBlue(0, 0, 255);
const RgbColor BrightYellow(255, 255, 0);
const RgbColor BrightCyan(0, 255, 255);
const RgbColor BrightPurple(255, 0, 255);
const RgbColor DarkRed(32, 0, 0);
const RgbColor DarkGreen(0, 32, 0);
const RgbColor DarkBlue(0, 0, 32);
const RgbColor DarkYellow(32, 32, 0);
const RgbColor DarkCyan(0, 32, 32);
const RgbColor DarkPurple(32, 0, 32);
const RgbColor White(255);
const RgbColor Black(0);
// define a custom shader object that provides brightness support
// based upon the NeoShaderBase
class BrightnessShader : public NeoShaderBase
{
public:
BrightnessShader():
NeoShaderBase(),
_brightness(255) // default to full bright
{}
// required for a shader object, it will be called for
// every pixel
RgbColor Apply(uint16_t index, RgbColor original)
{
// we don't care what the index is so we ignore it
//
// to apply our brightness shader, modify the original color and return the color we want
// blend from black (_brightness == 0.0) to the original color (_brightness == 1.0)
return RgbColor::LinearBlend(Black, original, (float)_brightness / 255.0f);
}
// provide an accessor to set brightness
void setBrightness(uint8_t brightness)
{
_brightness = brightness;
Dirty(); // must call dirty when a property changes
}
// provide an accessor to get brightness
uint8_t getBrightness()
{
return _brightness;
}
private:
uint8_t _brightness;
};
// create an instance of our shader object
BrightnessShader shader;
// some dimming tracking variables and settings
int8_t delta;
void setup()
{
Serial.begin(115200);
while (!Serial); // wait for serial attach
Serial.println();
Serial.println("Initializing...");
Serial.flush();
// this resets all the neopixels to an off state
strip.Begin();
strip.Show();
// dibs do not default to any color,
// so clear it to black if you aren't going to draw
// into every pixel
image.ClearTo(Black);
// draw a pattern into the image
uint8_t index = 0;
image.SetPixelColor(index++, DarkRed);
image.SetPixelColor(index++, DarkYellow);
image.SetPixelColor(index++, DarkGreen);
image.SetPixelColor(index++, DarkCyan);
image.SetPixelColor(index++, DarkBlue);
image.SetPixelColor(index++, DarkPurple);
image.SetPixelColor(index++, Black);
image.SetPixelColor(index++, Black);
image.SetPixelColor(index++, BrightRed);
image.SetPixelColor(index++, BrightYellow);
image.SetPixelColor(index++, BrightGreen);
image.SetPixelColor(index++, BrightCyan);
image.SetPixelColor(index++, BrightBlue);
image.SetPixelColor(index++, BrightPurple);
Serial.println();
Serial.println("Running...");
delta = -1; // start by dimming downward
}
void loop()
{
// we increment by delta every 30ms
delay(30);
// update the brightness in shader
//
uint8_t brightness = shader.getBrightness();
// check if we flip directions
if (brightness == 0)
{
delta = 1; // increment
}
else if (brightness == 255)
{
delta = -1; // decrement
}
// modify and apply
brightness += delta;
shader.setBrightness(brightness);
Serial.println(brightness);
// render the image using the shader and then call Show()
// these two should be called together in order
//
// need to provide the type of color feature for the strip and
// the type of our custom shader
image.Render<NeoGrbFeature, BrightnessShader>(strip, shader);
strip.Show();
}

2
src/NeoPixelBusLg.h
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@@ -28,7 +28,7 @@ License along with NeoPixel. If not, see
#include "NeoPixelBus.h"
template<typename T_EXPOSED_COLOR_OBJECT,
template <typename T_EXPOSED_COLOR_OBJECT,
typename T_FEATURE_COLOR_OBJECT,
typename T_GAMMA>
class LuminanceShader

5
src/internal/buffers/NeoBitmapFile.h
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@@ -70,7 +70,8 @@ enum BmpCompression
// T_COLOR_OBJECT - one of the color objects (RgbColor, RgbwColor)
// T_FILE_METHOD - any standard File object following Arduino File methods/members
//
template<typename T_COLOR_OBJECT, typename T_FILE_METHOD> class NeoBitmapFile
template <typename T_COLOR_OBJECT, typename T_FILE_METHOD>
class NeoBitmapFile
{
public:
NeoBitmapFile() :
@@ -213,7 +214,7 @@ public:
{
if (readPixel(&color))
{
color = shader.Apply(indexPixel, color);
color = shader.Apply(color);
xSrc++;
}
}

12
src/internal/buffers/NeoBuffer.h
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@@ -29,7 +29,8 @@ License along with NeoPixel. If not, see
// NeoBufferMethod
// NeoBufferProgmemMethod
//
template<typename T_BUFFER_METHOD> class NeoBuffer
template <typename T_BUFFER_METHOD>
class NeoBuffer
{
public:
NeoBuffer(uint16_t width,
@@ -155,13 +156,14 @@ public:
Blt(destBuffer, xDest, yDest, 0, 0, Width(), Height(), layoutMap);
}
template <typename T_SHADER> void Render(NeoBufferContext<typename T_BUFFER_METHOD::ColorObject> destBuffer, T_SHADER& shader)
template <typename T_SHADER>
void Render(NeoBufferContext<typename T_BUFFER_METHOD::ColorObject> destBuffer, T_SHADER& shader)
{
uint16_t destPixelCount = destBuffer.PixelCount();
uint16_t countPixels = destBuffer.PixelCount;
if (destPixelCount > _method.PixelCount())
if (countPixels > _method.PixelCount())
{
destPixelCount = _method.PixelCount();
countPixels = _method.PixelCount();
}
for (uint16_t indexPixel = 0; indexPixel < countPixels; indexPixel++)

11
src/internal/buffers/NeoBufferContext.h
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@@ -28,17 +28,18 @@ License along with NeoPixel. If not, see
// This is used to allow a template classes that share common buffer concept to
// be able to pass that common information to functions
// The template classes just need to expose a conversion operator to this type
template <typename T_COLOR_OBJECT> struct NeoBufferContext
template <typename T_COLOR_OBJECT>
struct NeoBufferContext
{
NeoBufferContext(T_COLOR_OBJECT* pixels,
size_t pixelsCount) :
size_t pixelCount) :
Pixels(pixels),
PixelsCount(pixelsCount)
PixelCount(pixelCount)
{
}
typedef T_COLOR_OBJECT ColorObject;
T_COLOR_OBJECT* Pixels;
const size_t PixelsCount;
;
const size_t PixelCount;
};

12
src/internal/buffers/NeoBufferMethods.h
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@@ -26,7 +26,8 @@ License along with NeoPixel. If not, see
#pragma once
template<typename T_COLOR_OBJECT> class NeoBufferMethod
template <typename T_COLOR_OBJECT>
class NeoBufferMethod
{
public:
NeoBufferMethod(uint16_t width, uint16_t height, PGM_VOID_P pixels = nullptr) :
@@ -37,10 +38,12 @@ public:
if (pixels)
{
const uint8_t* pixelsSrc = static_cast<const uint8_t*>(pixels);
// copy from progmem to initialize
for (size_t index = 0; index < PixelCount(); index++)
{
_pixels[index] = T_COLOR_OBJECT::PgmRead(pixels + T_COLOR_OBJECT::Size * indexPixel);
_pixels[index] = T_COLOR_OBJECT::PgmRead(pixelsSrc + T_COLOR_OBJECT::Size * index);
}
}
}
@@ -53,7 +56,7 @@ public:
operator NeoBufferContext<T_COLOR_OBJECT>()
{
return NeoBufferContext<T_COLOR_OBJECT>(Pixels(), PixelsCount());
return NeoBufferContext<T_COLOR_OBJECT>(Pixels(), PixelCount());
}
uint8_t* Pixels() const
@@ -96,7 +99,8 @@ public:
void SetPixelColor(int16_t x, int16_t y, T_COLOR_OBJECT color)
{
if (x < 0 || x >= _width || y < 0 || y >= _height)
if (x < 0 || static_cast<uint16_t>(x) >= _width ||
y < 0 || static_cast<uint16_t>(y) >= _height)
{
return;
}

9
src/internal/buffers/NeoBufferProgmemMethod.h
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@@ -26,7 +26,8 @@ License along with NeoPixel. If not, see
#pragma once
template<typename T_COLOR_OBJECT> class NeoBufferProgmemMethod
template <typename T_COLOR_OBJECT>
class NeoBufferProgmemMethod
{
public:
NeoBufferProgmemMethod(uint16_t width, uint16_t height, PGM_VOID_P pixels) :
@@ -38,7 +39,7 @@ public:
operator NeoBufferContext<T_COLOR_OBJECT>()
{
return NeoBufferContext<T_COLOR_OBJECT>(Pixels(), PixelsCount());
return NeoBufferContext<T_COLOR_OBJECT>(Pixels(), PixelCount());
}
const uint8_t* Pixels() const
@@ -80,7 +81,9 @@ public:
return 0;
}
return T_COLOR_OBJECT::PgmRead(_pixels + T_COLOR_OBJECT::Size * indexPixel);
const uint8_t* pixelsSrc = static_cast<const uint8_t*>(_pixels);
return T_COLOR_OBJECT::PgmRead(pixelsSrc + T_COLOR_OBJECT::Size * indexPixel);
};

2
src/internal/buffers/NeoShaderNop.h
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@@ -25,7 +25,7 @@ License along with NeoPixel. If not, see
-------------------------------------------------------------------------*/
#pragma once
template<typename T_EXPOSED_COLOR_OBJECT, typename T_FEATURE_COLOR_OBJECT>
template <typename T_EXPOSED_COLOR_OBJECT, typename T_FEATURE_COLOR_OBJECT>
class NeoShaderNop
{
public:

10
src/internal/buffers/NeoVerticalSpriteSheet.h
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@@ -42,7 +42,7 @@ public:
{
}
operator NeoBufferContext<typename T_BUFFER_METHOD::ColorFeature>()
operator NeoBufferContext<typename T_BUFFER_METHOD::ColorObject>()
{
return _method;
}
@@ -82,11 +82,11 @@ public:
_method.ClearTo(color);
};
void Blt(NeoBufferContext<typename T_BUFFER_METHOD::ColorFeature> destBuffer,
void Blt(NeoBufferContext<typename T_BUFFER_METHOD::ColorObject> destBuffer,
uint16_t destPixelIndex,
uint16_t indexSprite)
{
uint16_t destPixelCount = destBuffer.PixelCount();
uint16_t destPixelCount = destBuffer.PixelCount;
// validate destPixelIndex
if (destPixelIndex >= destPixelCount)
{
@@ -114,7 +114,7 @@ public:
}
}
void Blt(NeoBufferContext<typename T_BUFFER_METHOD::ColorFeature> destBuffer,
void Blt(NeoBufferContext<typename T_BUFFER_METHOD::ColorObject> destBuffer,
int16_t x,
int16_t y,
uint16_t indexSprite,
@@ -135,7 +135,7 @@ public:
if (indexDest < destPixelCount)
{
typename T_BUFFER_METHOD::ColorObject color = _method.GetPixelColor(pixelIndex(indexSprite, srcX, srcY));
destBuffer.Pixels[destPixelIndex + indexDest] = color;
destBuffer.Pixels[indexDest] = color;
}
}
}

9
src/internal/colors/RgbColorBase.h
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@@ -70,26 +70,31 @@ protected:
template <typename T_COLOR> static T_COLOR
_PgmReadByBytes(PGM_VOID_P pPixelSrc)
{
T_COLOR result;
const uint8_t* pSrc = reinterpret_cast<const uint8_t*>(pPixelSrc);
const uint8_t* pEnd = pSrc + T_COLOR::Count;
uint8_t index = 0;
while (pSrc < pEnd)
{
color[index++] = pgm_read_byte(pSrc++);
result[index++] = pgm_read_byte(pSrc++);
}
return result;
}
template <typename T_COLOR> static T_COLOR
_PgmReadByWords(PGM_VOID_P pPixelSrc)
{
T_COLOR result;
const uint16_t* pSrc = reinterpret_cast<const uint16_t*>(pPixelSrc);
const uint16_t* pEnd = pSrc + T_COLOR::Count;
uint8_t index = 0;
while (pSrc < pEnd)
{
color[index++] = pgm_read_word(pSrc++);
result[index++] = pgm_read_word(pSrc++);
}
return result;
}
};