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REVIEWED: ImageColorContrast() parameter type, consistent with other Image*() functions

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Ray
2026-04-27 11:46:43 +02:00
parent 0e68f812b5
commit c9c26d8071
2 changed files with 7 additions and 7 deletions
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2
src/raylib.h
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@ -1402,7 +1402,7 @@ RLAPI void ImageRotateCCW(Image *image);
RLAPI void ImageColorTint(Image *image, Color color); // Modify image color: tint RLAPI void ImageColorTint(Image *image, Color color); // Modify image color: tint
RLAPI void ImageColorInvert(Image *image); // Modify image color: invert RLAPI void ImageColorInvert(Image *image); // Modify image color: invert
RLAPI void ImageColorGrayscale(Image *image); // Modify image color: grayscale RLAPI void ImageColorGrayscale(Image *image); // Modify image color: grayscale
RLAPI void ImageColorContrast(Image *image, float contrast); // Modify image color: contrast (-100 to 100) RLAPI void ImageColorContrast(Image *image, int contrast); // Modify image color: contrast (-100 to 100)
RLAPI void ImageColorBrightness(Image *image, int brightness); // Modify image color: brightness (-255 to 255) RLAPI void ImageColorBrightness(Image *image, int brightness); // Modify image color: brightness (-255 to 255)
RLAPI void ImageColorReplace(Image *image, Color color, Color replace); // Modify image color: replace color RLAPI void ImageColorReplace(Image *image, Color color, Color replace); // Modify image color: replace color
RLAPI Color *LoadImageColors(Image image); // Load color data from image as a Color array (RGBA - 32bit) RLAPI Color *LoadImageColors(Image image); // Load color data from image as a Color array (RGBA - 32bit)

12
src/rtextures.c
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@ -2795,7 +2795,7 @@ void ImageColorGrayscale(Image *image)
// Modify image color: contrast // Modify image color: contrast
// NOTE: Contrast values between -100 and 100 // NOTE: Contrast values between -100 and 100
void ImageColorContrast(Image *image, float contrast) void ImageColorContrast(Image *image, int contrast)
{ {
// Security check to avoid program crash // Security check to avoid program crash
if ((image->data == NULL) || (image->width == 0) || (image->height == 0)) return; if ((image->data == NULL) || (image->width == 0) || (image->height == 0)) return;
@ -2803,8 +2803,8 @@ void ImageColorContrast(Image *image, float contrast)
if (contrast < -100) contrast = -100; if (contrast < -100) contrast = -100;
if (contrast > 100) contrast = 100; if (contrast > 100) contrast = 100;
contrast = (100.0f + contrast)/100.0f; float factor = (float)(100.0f + contrast)/100.0f;
contrast *= contrast; factor *= factor;
Color *pixels = LoadImageColors(*image); Color *pixels = LoadImageColors(*image);
@ -2812,7 +2812,7 @@ void ImageColorContrast(Image *image, float contrast)
{ {
float pR = (float)pixels[i].r/255.0f; float pR = (float)pixels[i].r/255.0f;
pR -= 0.5f; pR -= 0.5f;
pR *= contrast; pR *= factor;
pR += 0.5f; pR += 0.5f;
pR *= 255; pR *= 255;
if (pR < 0) pR = 0; if (pR < 0) pR = 0;
@ -2820,7 +2820,7 @@ void ImageColorContrast(Image *image, float contrast)
float pG = (float)pixels[i].g/255.0f; float pG = (float)pixels[i].g/255.0f;
pG -= 0.5f; pG -= 0.5f;
pG *= contrast; pG *= factor;
pG += 0.5f; pG += 0.5f;
pG *= 255; pG *= 255;
if (pG < 0) pG = 0; if (pG < 0) pG = 0;
@ -2828,7 +2828,7 @@ void ImageColorContrast(Image *image, float contrast)
float pB = (float)pixels[i].b/255.0f; float pB = (float)pixels[i].b/255.0f;
pB -= 0.5f; pB -= 0.5f;
pB *= contrast; pB *= factor;
pB += 0.5f; pB += 0.5f;
pB *= 255; pB *= 255;
if (pB < 0) pB = 0; if (pB < 0) pB = 0;