We are going to support SRGB.

stb_resample.h

@@ -18,7 +18,7 @@ Initial implementation by Jorge L Rodriguez
 #define STBR_INCLUDE_STB_RESAMPLE_H
 
 // Basic usage:
-//    result = stbr_resize(input_data, input_w, input_h, input_components, 0, output_data, output_w, output_h, 0, STBR_FILTER_NEAREST, STBR_EDGE_CLAMP);
+//    result = stbr_resize(input_data, input_w, input_h, input_components, 0, output_data, output_w, output_h, 0, STBR_FILTER_NEAREST, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 //
 //    input_data is your supplied texels.
 //    output_data will be the resized texels. It should be of size output_w * output_h * input_components (or output_h * output_stride if you provided a stride.)
@@ -35,6 +35,12 @@ typedef enum
 	STBR_EDGE_CLAMP = 1,
 } stbr_edge;
 
+typedef enum
+{
+	STBR_COLORSPACE_LINEAR = 1,
+	STBR_COLORSPACE_SRGB = 1,
+} stbr_colorspace;
+
 
 typedef unsigned char stbr_uc;
 
@@ -53,7 +59,7 @@ extern "C" {
 	// PRIMARY API - resize an image
 	//
 
-	STBRDEF int stbr_resize(const stbr_uc* input_data, int input_w, int input_h, int input_components, int input_stride, stbr_uc* output_data, int output_w, int output_h, int output_stride, stbr_filter filter, stbr_edge edge);
+	STBRDEF int stbr_resize(const stbr_uc* input_data, int input_w, int input_h, int input_components, int input_stride, stbr_uc* output_data, int output_w, int output_h, int output_stride, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace);
 
 
 #ifdef __cplusplus
@@ -160,7 +166,7 @@ static void stbr__filter_nearest_n(const stbr_uc* input_data, stbr_uc* output_da
 
 typedef void (stbr__filter_fn)(const stbr_uc* input_data, stbr_uc* output_data, size_t input_texel_index, size_t output_texel_index, size_t n);
 
-STBRDEF int stbr_resize(const stbr_uc* input_data, int input_w, int input_h, int input_components, int input_stride, stbr_uc* output_data, int output_w, int output_h, int output_stride, stbr_filter filter, stbr_edge edge)
+STBRDEF int stbr_resize(const stbr_uc* input_data, int input_w, int input_h, int input_components, int input_stride, stbr_uc* output_data, int output_w, int output_h, int output_stride, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace)
 {
 	int x, y;
 	int width_stride_input = input_stride ? input_stride : input_components * input_w;

tests/resample_test.c

@@ -41,7 +41,7 @@ int main(int argc, char** argv)
 	output_data = malloc(out_stride * out_h);
 
 	// Cut out the outside 64 pixels all around to test the stride.
-	stbr_resize(input_data + w*64*n + 64*n, w - 128, h - 128, n, w*n, output_data, out_w, out_h, out_stride, STBR_FILTER_NEAREST, STBR_EDGE_CLAMP);
+	stbr_resize(input_data + w*64*n + 64*n, w - 128, h - 128, n, w*n, output_data, out_w, out_h, out_stride, STBR_FILTER_NEAREST, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
 
 	stbi_write_png("output.png", out_w, out_h, n, output_data, out_stride);