From 3fd2fc1e0159e480df6c1f01eea89a66ec89e67b Mon Sep 17 00:00:00 2001 From: Juan Linietsky Date: Wed, 22 Aug 2018 16:40:43 -0300 Subject: Make sure resizing of float and half float images works, fixes #21157 --- core/image.cpp | 170 +++++++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 134 insertions(+), 36 deletions(-) diff --git a/core/image.cpp b/core/image.cpp index e4573c5ebb..b1f0125b43 100644 --- a/core/image.cpp +++ b/core/image.cpp @@ -37,6 +37,7 @@ #include "print_string.h" #include "io/resource_loader.h" +#include "math_funcs.h" #include "thirdparty/misc/hq2x.h" #include @@ -525,7 +526,7 @@ static double _bicubic_interp_kernel(double x) { return bc; } -template +template static void _scale_cubic(const uint8_t *__restrict p_src, uint8_t *__restrict p_dst, uint32_t p_src_width, uint32_t p_src_height, uint32_t p_dst_width, uint32_t p_dst_height) { // get source image size @@ -556,7 +557,7 @@ static void _scale_cubic(const uint8_t *__restrict p_src, uint8_t *__restrict p_ // initial pixel value - uint8_t *__restrict dst = p_dst + (y * p_dst_width + x) * CC; + T *__restrict dst = ((T *)p_dst) + (y * p_dst_width + x) * CC; double color[CC]; for (int i = 0; i < CC; i++) { @@ -584,23 +585,32 @@ static void _scale_cubic(const uint8_t *__restrict p_src, uint8_t *__restrict p_ ox2 = xmax; // get pixel of original image - const uint8_t *__restrict p = p_src + (oy2 * p_src_width + ox2) * CC; + const T *__restrict p = ((T *)p_src) + (oy2 * p_src_width + ox2) * CC; for (int i = 0; i < CC; i++) { - - color[i] += p[i] * k2; + if (sizeof(T) == 2) { //half float + color[i] = Math::half_to_float(p[i]); + } else { + color[i] += p[i] * k2; + } } } } for (int i = 0; i < CC; i++) { - dst[i] = CLAMP(Math::fast_ftoi(color[i]), 0, 255); + if (sizeof(T) == 1) { //byte + dst[i] = CLAMP(Math::fast_ftoi(color[i]), 0, 255); + } else if (sizeof(T) == 2) { //half float + dst[i] = Math::make_half_float(color[i]); + } else { + dst[i] = color[i]; + } } } } } -template +template static void _scale_bilinear(const uint8_t *__restrict p_src, uint8_t *__restrict p_dst, uint32_t p_src_width, uint32_t p_src_height, uint32_t p_dst_width, uint32_t p_dst_height) { enum { @@ -640,22 +650,58 @@ static void _scale_bilinear(const uint8_t *__restrict p_src, uint8_t *__restrict for (uint32_t l = 0; l < CC; l++) { - uint32_t p00 = p_src[y_ofs_up + src_xofs_left + l] << FRAC_BITS; - uint32_t p10 = p_src[y_ofs_up + src_xofs_right + l] << FRAC_BITS; - uint32_t p01 = p_src[y_ofs_down + src_xofs_left + l] << FRAC_BITS; - uint32_t p11 = p_src[y_ofs_down + src_xofs_right + l] << FRAC_BITS; - - uint32_t interp_up = p00 + (((p10 - p00) * src_xofs_frac) >> FRAC_BITS); - uint32_t interp_down = p01 + (((p11 - p01) * src_xofs_frac) >> FRAC_BITS); - uint32_t interp = interp_up + (((interp_down - interp_up) * src_yofs_frac) >> FRAC_BITS); - interp >>= FRAC_BITS; - p_dst[i * p_dst_width * CC + j * CC + l] = interp; + if (sizeof(T) == 1) { //uint8 + uint32_t p00 = p_src[y_ofs_up + src_xofs_left + l] << FRAC_BITS; + uint32_t p10 = p_src[y_ofs_up + src_xofs_right + l] << FRAC_BITS; + uint32_t p01 = p_src[y_ofs_down + src_xofs_left + l] << FRAC_BITS; + uint32_t p11 = p_src[y_ofs_down + src_xofs_right + l] << FRAC_BITS; + + uint32_t interp_up = p00 + (((p10 - p00) * src_xofs_frac) >> FRAC_BITS); + uint32_t interp_down = p01 + (((p11 - p01) * src_xofs_frac) >> FRAC_BITS); + uint32_t interp = interp_up + (((interp_down - interp_up) * src_yofs_frac) >> FRAC_BITS); + interp >>= FRAC_BITS; + p_dst[i * p_dst_width * CC + j * CC + l] = interp; + } else if (sizeof(T) == 2) { //half float + + float xofs_frac = float(src_xofs_frac) / (1 << FRAC_BITS); + float yofs_frac = float(src_yofs_frac) / (1 << FRAC_BITS); + const T *src = ((const T *)p_src); + T *dst = ((T *)p_dst); + + float p00 = Math::half_to_float(src[y_ofs_up + src_xofs_left + l]); + float p10 = Math::half_to_float(src[y_ofs_up + src_xofs_right + l]); + float p01 = Math::half_to_float(src[y_ofs_down + src_xofs_left + l]); + float p11 = Math::half_to_float(src[y_ofs_down + src_xofs_right + l]); + + float interp_up = p00 + (p10 - p00) * xofs_frac; + float interp_down = p01 + (p11 - p01) * xofs_frac; + float interp = interp_up + ((interp_down - interp_up) * yofs_frac); + + dst[i * p_dst_width * CC + j * CC + l] = Math::make_half_float(interp); + } else if (sizeof(T) == 4) { //float + + float xofs_frac = float(src_xofs_frac) / (1 << FRAC_BITS); + float yofs_frac = float(src_yofs_frac) / (1 << FRAC_BITS); + const T *src = ((const T *)p_src); + T *dst = ((T *)p_dst); + + float p00 = src[y_ofs_up + src_xofs_left + l]; + float p10 = src[y_ofs_up + src_xofs_right + l]; + float p01 = src[y_ofs_down + src_xofs_left + l]; + float p11 = src[y_ofs_down + src_xofs_right + l]; + + float interp_up = p00 + (p10 - p00) * xofs_frac; + float interp_down = p01 + (p11 - p01) * xofs_frac; + float interp = interp_up + ((interp_down - interp_up) * yofs_frac); + + dst[i * p_dst_width * CC + j * CC + l] = interp; + } } } } } -template +template static void _scale_nearest(const uint8_t *__restrict p_src, uint8_t *__restrict p_dst, uint32_t p_src_width, uint32_t p_src_height, uint32_t p_dst_width, uint32_t p_dst_height) { for (uint32_t i = 0; i < p_dst_height; i++) { @@ -670,8 +716,11 @@ static void _scale_nearest(const uint8_t *__restrict p_src, uint8_t *__restrict for (uint32_t l = 0; l < CC; l++) { - uint32_t p = p_src[y_ofs + src_xofs + l]; - p_dst[i * p_dst_width * CC + j * CC + l] = p; + const T *src = ((const T *)p_src); + T *dst = ((T *)p_dst); + + T p = src[y_ofs + src_xofs + l]; + dst[i * p_dst_width * CC + j * CC + l] = p; } } } @@ -766,12 +815,30 @@ void Image::resize(int p_width, int p_height, Interpolation p_interpolation) { case INTERPOLATE_NEAREST: { - switch (get_format_pixel_size(format)) { - case 1: _scale_nearest<1>(r_ptr, w_ptr, width, height, p_width, p_height); break; - case 2: _scale_nearest<2>(r_ptr, w_ptr, width, height, p_width, p_height); break; - case 3: _scale_nearest<3>(r_ptr, w_ptr, width, height, p_width, p_height); break; - case 4: _scale_nearest<4>(r_ptr, w_ptr, width, height, p_width, p_height); break; + if (format >= FORMAT_L8 && format <= FORMAT_RGBA8) { + switch (get_format_pixel_size(format)) { + case 1: _scale_nearest<1>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 2: _scale_nearest<2>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 3: _scale_nearest<3>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 4: _scale_nearest<4>(r_ptr, w_ptr, width, height, p_width, p_height); break; + } + } else if (format >= FORMAT_RF && format <= FORMAT_RGBAF) { + switch (get_format_pixel_size(format)) { + case 4: _scale_nearest<1, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 8: _scale_nearest<2, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 12: _scale_nearest<3, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 16: _scale_nearest<4, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + } + + } else if (format >= FORMAT_RH && format <= FORMAT_RGBAH) { + switch (get_format_pixel_size(format)) { + case 2: _scale_nearest<1, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 4: _scale_nearest<2, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 6: _scale_nearest<3, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 8: _scale_nearest<4, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + } } + } break; case INTERPOLATE_BILINEAR: case INTERPOLATE_TRILINEAR: { @@ -812,11 +879,27 @@ void Image::resize(int p_width, int p_height, Interpolation p_interpolation) { } } - switch (get_format_pixel_size(format)) { - case 1: _scale_bilinear<1>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; - case 2: _scale_bilinear<2>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; - case 3: _scale_bilinear<3>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; - case 4: _scale_bilinear<4>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + if (format >= FORMAT_L8 && format <= FORMAT_RGBA8) { + switch (get_format_pixel_size(format)) { + case 1: _scale_bilinear<1>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 2: _scale_bilinear<2>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 3: _scale_bilinear<3>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 4: _scale_bilinear<4>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + } + } else if (format >= FORMAT_RF && format <= FORMAT_RGBAF) { + switch (get_format_pixel_size(format)) { + case 4: _scale_bilinear<1, float>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 8: _scale_bilinear<2, float>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 12: _scale_bilinear<3, float>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 16: _scale_bilinear<4, float>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + } + } else if (format >= FORMAT_RH && format <= FORMAT_RGBAH) { + switch (get_format_pixel_size(format)) { + case 2: _scale_bilinear<1, uint16_t>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 4: _scale_bilinear<2, uint16_t>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 6: _scale_bilinear<3, uint16_t>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + case 8: _scale_bilinear<4, uint16_t>(src_ptr, w_ptr, src_width, src_height, p_width, p_height); break; + } } } @@ -829,13 +912,28 @@ void Image::resize(int p_width, int p_height, Interpolation p_interpolation) { } break; case INTERPOLATE_CUBIC: { - switch (get_format_pixel_size(format)) { - case 1: _scale_cubic<1>(r_ptr, w_ptr, width, height, p_width, p_height); break; - case 2: _scale_cubic<2>(r_ptr, w_ptr, width, height, p_width, p_height); break; - case 3: _scale_cubic<3>(r_ptr, w_ptr, width, height, p_width, p_height); break; - case 4: _scale_cubic<4>(r_ptr, w_ptr, width, height, p_width, p_height); break; + if (format >= FORMAT_L8 && format <= FORMAT_RGBA8) { + switch (get_format_pixel_size(format)) { + case 1: _scale_cubic<1>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 2: _scale_cubic<2>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 3: _scale_cubic<3>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 4: _scale_cubic<4>(r_ptr, w_ptr, width, height, p_width, p_height); break; + } + } else if (format >= FORMAT_RF && format <= FORMAT_RGBAF) { + switch (get_format_pixel_size(format)) { + case 4: _scale_cubic<1, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 8: _scale_cubic<2, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 12: _scale_cubic<3, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 16: _scale_cubic<4, float>(r_ptr, w_ptr, width, height, p_width, p_height); break; + } + } else if (format >= FORMAT_RH && format <= FORMAT_RGBAH) { + switch (get_format_pixel_size(format)) { + case 2: _scale_cubic<1, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 4: _scale_cubic<2, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 6: _scale_cubic<3, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + case 8: _scale_cubic<4, uint16_t>(r_ptr, w_ptr, width, height, p_width, p_height); break; + } } - } break; } -- cgit v1.2.3