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| author | Pedro J. Estébanez <pedrojrulez@gmail.com> | 2018-06-01 21:56:55 +0200 |
|---|---|---|
| committer | Pedro J. Estébanez <pedrojrulez@gmail.com> | 2018-07-23 21:08:10 +0200 |
| commit | c09734b401d79e7e718899100401220f7ff7eb0b (patch) | |
| tree | 352094c9b01bc99660ed63545a99fc70386eb48e | |
| parent | 8c05c2830c62d38b8b159ecf13f2b22293bfe299 (diff) | |
Optimize image scaling routines
| -rw-r--r-- | core/image.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/core/image.cpp b/core/image.cpp index c862daf282..34aa5940d9 100644 --- a/core/image.cpp +++ b/core/image.cpp @@ -526,7 +526,7 @@ static double _bicubic_interp_kernel(double x) { } template <int CC> -static void _scale_cubic(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_width, uint32_t p_src_height, uint32_t p_dst_width, uint32_t p_dst_height) { +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 int width = p_src_width; @@ -556,7 +556,7 @@ static void _scale_cubic(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_wi // initial pixel value - uint8_t *dst = p_dst + (y * p_dst_width + x) * CC; + uint8_t *__restrict dst = p_dst + (y * p_dst_width + x) * CC; double color[CC]; for (int i = 0; i < CC; i++) { @@ -584,7 +584,7 @@ static void _scale_cubic(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_wi ox2 = xmax; // get pixel of original image - const uint8_t *p = p_src + (oy2 * p_src_width + ox2) * CC; + const uint8_t *__restrict p = p_src + (oy2 * p_src_width + ox2) * CC; for (int i = 0; i < CC; i++) { @@ -601,7 +601,7 @@ static void _scale_cubic(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_wi } template <int CC> -static void _scale_bilinear(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_width, uint32_t p_src_height, uint32_t p_dst_width, uint32_t p_dst_height) { +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 { FRAC_BITS = 8, @@ -656,7 +656,7 @@ static void _scale_bilinear(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src } template <int CC> -static void _scale_nearest(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_width, uint32_t p_src_height, uint32_t p_dst_width, uint32_t p_dst_height) { +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++) { @@ -677,7 +677,7 @@ static void _scale_nearest(const uint8_t *p_src, uint8_t *p_dst, uint32_t p_src_ } } -static void _overlay(const uint8_t *p_src, uint8_t *p_dst, float p_alpha, uint32_t p_width, uint32_t p_height, uint32_t p_pixel_size) { +static void _overlay(const uint8_t *__restrict p_src, uint8_t *__restrict p_dst, float p_alpha, uint32_t p_width, uint32_t p_height, uint32_t p_pixel_size) { uint16_t alpha = CLAMP((uint16_t)(p_alpha * 256.0f), 0, 256); |