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Diffstat (limited to 'src/gen-image.c')
-rw-r--r--src/gen-image.c318
1 files changed, 262 insertions, 56 deletions
diff --git a/src/gen-image.c b/src/gen-image.c
index 15107d1..31d42e0 100644
--- a/src/gen-image.c
+++ b/src/gen-image.c
@@ -46,6 +46,12 @@ do { \
(b) = __tmp; \
} while (0)
+enum format_type {
+ FORMAT_RGB,
+ FORMAT_YUV,
+ FORMAT_HSV,
+};
+
struct format_color_component {
unsigned char length;
unsigned char offset;
@@ -59,6 +65,14 @@ struct format_rgb_info {
struct format_color_component alpha;
};
+struct format_hsv_info {
+ unsigned int bpp;
+ struct format_color_component hue;
+ struct format_color_component saturation;
+ struct format_color_component value;
+ struct format_color_component alpha;
+};
+
enum format_yuv_order {
YUV_YCbCr = 1,
YUV_YCrCb = 2,
@@ -75,8 +89,9 @@ struct format_yuv_info {
struct format_info {
const char *name;
- bool is_yuv;
+ enum format_type type;
struct format_rgb_info rgb;
+ struct format_hsv_info hsv;
struct format_yuv_info yuv;
};
@@ -118,6 +133,10 @@ struct options {
* Format information
*/
+#define MAKE_HSV_INFO(hl, ho, sl, so, vl, vo, al, ao) \
+ .hue = { (hl), (ho) }, .saturation = { (sl), (so) }, \
+ .value = { (vl), (vo) }, .alpha = { (al), (ao) }
+
#define MAKE_RGB_INFO(rl, ro, gl, go, bl, bo, al, ao) \
.red = { (rl), (ro) }, .green = { (gl), (go) }, \
.blue = { (bl), (bo) }, .alpha = { (al), (ao) }
@@ -127,33 +146,35 @@ static const struct format_info format_info[] = {
* The alpha channel maps to the X (don't care) bits for the XRGB
* formats.
*/
- { "RGB332", false, .rgb = { 8, MAKE_RGB_INFO(3, 5, 3, 2, 2, 0, 0, 0) } },
- { "ARGB444", false, .rgb = { 16, MAKE_RGB_INFO(4, 8, 4, 4, 4, 0, 4, 12) } },
- { "XRGB444", false, .rgb = { 16, MAKE_RGB_INFO(4, 8, 4, 4, 4, 0, 4, 12) } },
- { "ARGB555", false, .rgb = { 16, MAKE_RGB_INFO(5, 10, 5, 5, 5, 0, 1, 15) } },
- { "XRGB555", false, .rgb = { 16, MAKE_RGB_INFO(5, 10, 5, 5, 5, 0, 1, 15) } },
- { "RGB565", false, .rgb = { 16, MAKE_RGB_INFO(5, 11, 6, 5, 5, 0, 0, 0) } },
- { "BGR24", false, .rgb = { 24, MAKE_RGB_INFO(8, 16, 8, 8, 8, 0, 0, 0) } },
- { "RGB24", false, .rgb = { 24, MAKE_RGB_INFO(8, 0, 8, 8, 8, 16, 0, 0) } },
- { "ABGR32", false, .rgb = { 32, MAKE_RGB_INFO(8, 16, 8, 8, 8, 0, 8, 24) } },
- { "XBGR32", false, .rgb = { 32, MAKE_RGB_INFO(8, 16, 8, 8, 8, 0, 8, 24) } },
- { "ARGB32", false, .rgb = { 32, MAKE_RGB_INFO(8, 8, 8, 16, 8, 24, 8, 0) } },
- { "XRGB32", false, .rgb = { 32, MAKE_RGB_INFO(8, 8, 8, 16, 8, 24, 8, 0) } },
- { "UYVY", true, .yuv = { 1, YUV_YCbCr | YUV_CY, 2, 1 } },
- { "VYUY", true, .yuv = { 1, YUV_YCrCb | YUV_CY, 2, 1 } },
- { "YUYV", true, .yuv = { 1, YUV_YCbCr | YUV_YC, 2, 1 } },
- { "YVYU", true, .yuv = { 1, YUV_YCrCb | YUV_YC, 2, 1 } },
- { "NV12M", true, .yuv = { 2, YUV_YCbCr, 2, 2 } },
- { "NV21M", true, .yuv = { 2, YUV_YCrCb, 2, 2 } },
- { "NV16M", true, .yuv = { 2, YUV_YCbCr, 2, 1 } },
- { "NV61M", true, .yuv = { 2, YUV_YCrCb, 2, 1 } },
- { "YUV420M", true, .yuv = { 3, YUV_YCbCr, 2, 2 } },
- { "YVU420M", true, .yuv = { 3, YUV_YCrCb, 2, 2 } },
- { "YUV422M", true, .yuv = { 3, YUV_YCbCr, 2, 1 } },
- { "YVU422M", true, .yuv = { 3, YUV_YCrCb, 2, 1 } },
- { "YUV444M", true, .yuv = { 3, YUV_YCbCr, 1, 1 } },
- { "YVU444M", true, .yuv = { 3, YUV_YCrCb, 1, 1 } },
- { "YUV24", true, .yuv = { 1, YUV_YCbCr | YUV_YC, 1, 1 } },
+ { "RGB332", FORMAT_RGB, .rgb = { 8, MAKE_RGB_INFO(3, 5, 3, 2, 2, 0, 0, 0) } },
+ { "ARGB444", FORMAT_RGB, .rgb = { 16, MAKE_RGB_INFO(4, 8, 4, 4, 4, 0, 4, 12) } },
+ { "XRGB444", FORMAT_RGB, .rgb = { 16, MAKE_RGB_INFO(4, 8, 4, 4, 4, 0, 4, 12) } },
+ { "ARGB555", FORMAT_RGB, .rgb = { 16, MAKE_RGB_INFO(5, 10, 5, 5, 5, 0, 1, 15) } },
+ { "XRGB555", FORMAT_RGB, .rgb = { 16, MAKE_RGB_INFO(5, 10, 5, 5, 5, 0, 1, 15) } },
+ { "RGB565", FORMAT_RGB, .rgb = { 16, MAKE_RGB_INFO(5, 11, 6, 5, 5, 0, 0, 0) } },
+ { "BGR24", FORMAT_RGB, .rgb = { 24, MAKE_RGB_INFO(8, 16, 8, 8, 8, 0, 0, 0) } },
+ { "RGB24", FORMAT_RGB, .rgb = { 24, MAKE_RGB_INFO(8, 0, 8, 8, 8, 16, 0, 0) } },
+ { "ABGR32", FORMAT_RGB, .rgb = { 32, MAKE_RGB_INFO(8, 16, 8, 8, 8, 0, 8, 24) } },
+ { "XBGR32", FORMAT_RGB, .rgb = { 32, MAKE_RGB_INFO(8, 16, 8, 8, 8, 0, 8, 24) } },
+ { "ARGB32", FORMAT_RGB, .rgb = { 32, MAKE_RGB_INFO(8, 8, 8, 16, 8, 24, 8, 0) } },
+ { "XRGB32", FORMAT_RGB, .rgb = { 32, MAKE_RGB_INFO(8, 8, 8, 16, 8, 24, 8, 0) } },
+ { "HSV24", FORMAT_HSV, .hsv = { 24, MAKE_HSV_INFO(8, 0, 8, 8, 8, 16, 0, 0) } },
+ { "HSV32", FORMAT_HSV, .hsv = { 32, MAKE_HSV_INFO(8, 8, 8, 16, 8, 24, 8, 0) } },
+ { "UYVY", FORMAT_YUV, .yuv = { 1, YUV_YCbCr | YUV_CY, 2, 1 } },
+ { "VYUY", FORMAT_YUV, .yuv = { 1, YUV_YCrCb | YUV_CY, 2, 1 } },
+ { "YUYV", FORMAT_YUV, .yuv = { 1, YUV_YCbCr | YUV_YC, 2, 1 } },
+ { "YVYU", FORMAT_YUV, .yuv = { 1, YUV_YCrCb | YUV_YC, 2, 1 } },
+ { "NV12M", FORMAT_YUV, .yuv = { 2, YUV_YCbCr, 2, 2 } },
+ { "NV21M", FORMAT_YUV, .yuv = { 2, YUV_YCrCb, 2, 2 } },
+ { "NV16M", FORMAT_YUV, .yuv = { 2, YUV_YCbCr, 2, 1 } },
+ { "NV61M", FORMAT_YUV, .yuv = { 2, YUV_YCrCb, 2, 1 } },
+ { "YUV420M", FORMAT_YUV, .yuv = { 3, YUV_YCbCr, 2, 2 } },
+ { "YVU420M", FORMAT_YUV, .yuv = { 3, YUV_YCrCb, 2, 2 } },
+ { "YUV422M", FORMAT_YUV, .yuv = { 3, YUV_YCbCr, 2, 1 } },
+ { "YVU422M", FORMAT_YUV, .yuv = { 3, YUV_YCrCb, 2, 1 } },
+ { "YUV444M", FORMAT_YUV, .yuv = { 3, YUV_YCbCr, 1, 1 } },
+ { "YVU444M", FORMAT_YUV, .yuv = { 3, YUV_YCrCb, 1, 1 } },
+ { "YUV24", FORMAT_YUV, .yuv = { 1, YUV_YCbCr | YUV_YC, 1, 1 } },
};
static const struct format_info *format_by_name(const char *name)
@@ -235,13 +256,23 @@ static struct image *image_new(const struct format_info *format,
image->width = width;
image->height = height;
- if (format->is_yuv)
+ switch (format->type) {
+ case FORMAT_RGB:
+ image->size = image->width * image->height
+ * format->rgb.bpp / 8;
+ break;
+
+ case FORMAT_HSV:
+ image->size = image->width * image->height
+ * format->hsv.bpp / 8;
+ break;
+
+ case FORMAT_YUV:
image->size = image->width * image->height
* (8 + 2 * 8 / format->yuv.xsub / format->yuv.ysub)
/ 8;
- else
- image->size = image->width * image->height
- * format->rgb.bpp / 8;
+ break;
+ }
image->data = malloc(image->size);
if (!image->data) {
@@ -520,6 +551,36 @@ static void image_format_rgb32(const struct image *input, struct image *output,
}
}
+static void image_format_hsv24(const struct image *input, struct image *output,
+ const struct params *params)
+{
+ memcpy(output->data, input->data, input->width * input->height * 3);
+}
+
+static void image_format_hsv32(const struct image *input, struct image *output,
+ const struct params *params)
+{
+ const struct format_info *format = output->format;
+ const uint8_t *idata = input->data;
+ uint32_t *odata = output->data;
+ uint8_t h, s, v, a;
+ unsigned int x, y;
+
+ for (y = 0; y < input->height; ++y) {
+ for (x = 0; x < input->width; ++x) {
+ h = *idata++;
+ s = *idata++;
+ v = *idata++;
+ a = params->alpha;
+
+ *odata++ = (h << format->hsv.hue.offset)
+ | (s << format->hsv.saturation.offset)
+ | (v << format->hsv.value.offset)
+ | (a << format->hsv.alpha.offset);
+ }
+ }
+}
+
/*
* In YUV packed and planar formats, when subsampling horizontally average the
* chroma components of the two pixels to match the hardware behaviour.
@@ -765,6 +826,123 @@ static void image_convert_rgb_to_rgb(const struct image *input,
}
/* -----------------------------------------------------------------------------
+ * RGB to HSV conversion (as performed by the Renesas VSP HST)
+ */
+
+#define K 4
+static uint8_t hst_calc_h(uint8_t r, uint8_t g, uint8_t b)
+{
+ uint8_t max, min;
+ int delta;
+ int diff;
+ unsigned int third;
+ int aux;
+
+ max = max(r, max(g, b));
+ min = min(r, min(g, b));
+ delta = max - min;
+
+ if (!delta)
+ return 0;
+
+ if (max == r) {
+ diff = g - b;
+ third = 0;
+ } else if (max == g) {
+ diff = b - r;
+ third = 256 * K;
+ } else {
+ diff = r - g;
+ third = 512 * K;
+ }
+
+ aux = diff;
+ aux *= 128;
+ aux *= K;
+
+ /* Round up */
+ if (aux >= 0)
+ aux += delta - 1;
+ else
+ aux -= delta - 1;
+
+ aux /= delta;
+ aux += third;
+
+ if (diff < 0 && third)
+ aux--;
+
+ /*
+ * Divide by three and remove K scaling
+ */
+ if (aux > 0)
+ aux += (3 * K)/2;
+ else
+ aux -= (3 * K)/2;
+ aux /= 3 * K;
+
+ aux &= 0xff;
+
+ return aux;
+}
+
+static uint8_t hst_calc_s(uint8_t r8, uint8_t g8, uint8_t b8)
+{
+ uint8_t max, min, delta;
+ unsigned int s;
+
+ max = max(r8, max(g8, b8));
+ min = min(r8, min(g8, b8));
+
+ delta = max - min;
+ if (!delta)
+ return 0;
+
+ s = delta * 255;
+
+ /* Special rounding,
+ *
+ * If the minimum RGB component is less then 128 the calculated
+ * S value should be rounded half down else half should be
+ * rounded up.
+ */
+ if (min < 128)
+ return (s * 2 + max - 1) / max / 2;
+ else
+ return (s * 2 + max) / max / 2;
+}
+
+static uint8_t hst_calc_v(uint8_t r, uint8_t g, uint8_t b)
+{
+ return max(r, max(g, b));
+}
+
+static void hst_rgb_to_hsv(const uint8_t rgb[3], uint8_t hsv[3])
+{
+ hsv[0] = hst_calc_h(rgb[0], rgb[1], rgb[2]);
+ hsv[1] = hst_calc_s(rgb[0], rgb[1], rgb[2]);
+ hsv[2] = hst_calc_v(rgb[0], rgb[1], rgb[2]);
+}
+
+static void image_rgb_to_hsv(const struct image *input,
+ struct image *output,
+ const struct params *params)
+{
+ const uint8_t *idata = input->data;
+ uint8_t *odata = output->data;
+ unsigned int x;
+ unsigned int y;
+
+ for (y = 0; y < output->height; ++y) {
+ for (x = 0; x < output->width; ++x) {
+ hst_rgb_to_hsv(idata, odata);
+ idata += 3;
+ odata += 3;
+ }
+ }
+}
+
+/* -----------------------------------------------------------------------------
* Image scaling
*/
@@ -932,7 +1110,7 @@ static int image_lut_1d(const struct image *input, struct image *output,
return -ENODATA;
}
- if (input->format->is_yuv)
+ if (input->format->type == FORMAT_YUV)
memcpy(comp_map, (unsigned int[3]){ 1, 0, 2 },
sizeof(comp_map));
else
@@ -984,7 +1162,7 @@ static int image_lut_3d(const struct image *input, struct image *output,
return -ENODATA;
}
- if (input->format->is_yuv)
+ if (input->format->type == FORMAT_YUV)
memcpy(comp_map, (unsigned int[3]){ 2, 0, 1 },
sizeof(comp_map));
else
@@ -1070,7 +1248,7 @@ static void histogram_compute(const struct image *image, void *histo)
unsigned int x, y;
unsigned int i, j;
- if (image->format->is_yuv)
+ if (image->format->type == FORMAT_YUV)
memcpy(comp_map, (unsigned int[3]){ 2, 0, 1 }, sizeof(comp_map));
else
memcpy(comp_map, (unsigned int[3]){ 0, 1, 2 }, sizeof(comp_map));
@@ -1156,7 +1334,7 @@ static int process(const struct options *options)
}
/* Convert colorspace */
- if (options->input_format->is_yuv) {
+ if (options->input_format->type == FORMAT_YUV) {
struct image *yuv;
yuv = image_new(format_by_name("YUV24"), input->width,
@@ -1293,24 +1471,34 @@ static int process(const struct options *options)
}
/* Format the output */
- if (input->format->is_yuv && !options->output_format->is_yuv) {
- printf("RGB output with YUV processing not supported\n");
+ if (input->format->type != options->output_format->type &&
+ input->format->type != FORMAT_RGB) {
+ printf("Format conversion with non-RGB input not supported\n");
ret = -EINVAL;
goto done;
}
- if (!input->format->is_yuv && options->output_format->is_yuv) {
- const struct format_info *format = format_by_name("YUV24");
+ if (input->format->type != options->output_format->type) {
+ const struct format_info *format;
struct image *converted;
+ if (options->output_format->type == FORMAT_YUV)
+ format = format_by_name("YUV24");
+ else
+ format = format_by_name("HSV24");
+
converted = image_new(format, input->width, input->height);
if (!converted) {
ret = -ENOMEM;
goto done;
}
- image_colorspace_rgb_to_yuv(input, converted, format,
- &options->params);
+ if (options->output_format->type == FORMAT_YUV)
+ image_colorspace_rgb_to_yuv(input, converted, format,
+ &options->params);
+ else
+ image_rgb_to_hsv(input, converted, &options->params);
+
image_delete(input);
input = converted;
}
@@ -1321,20 +1509,8 @@ static int process(const struct options *options)
goto done;
}
- if (output->format->is_yuv) {
- switch (output->format->yuv.num_planes) {
- case 1:
- image_format_yuv_packed(input, output, &options->params);
- break;
- case 2:
- case 3:
- image_format_yuv_planar(input, output, &options->params);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- } else {
+ switch (output->format->type) {
+ case FORMAT_RGB:
switch (output->format->rgb.bpp) {
case 8:
image_format_rgb8(input, output, &options->params);
@@ -1352,6 +1528,36 @@ static int process(const struct options *options)
ret = -EINVAL;
break;
}
+ break;
+
+ case FORMAT_HSV:
+ switch (output->format->hsv.bpp) {
+ case 24:
+ image_format_hsv24(input, output, &options->params);
+ break;
+ case 32:
+ image_format_hsv32(input, output, &options->params);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ break;
+
+ case FORMAT_YUV:
+ switch (output->format->yuv.num_planes) {
+ case 1:
+ image_format_yuv_packed(input, output, &options->params);
+ break;
+ case 2:
+ case 3:
+ image_format_yuv_planar(input, output, &options->params);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ break;
}
if (ret < 0) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 04:24:25 +0000