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Image Use memcpy() in fill(), fill_rect(), _put_pixelb(), _get_pixelb()

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Co-authored-by: Lightning_A <aaronjrecord@gmail.com>
This commit is contained in:
kleonc 2021-09-08 10:27:28 +02:00
parent 4f446c8b9e
commit 16baa9bb9a
2 changed files with 32 additions and 31 deletions
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57
core/image.cpp
View file

@ -87,20 +87,14 @@ SaveEXRFunc Image::save_exr_func = nullptr;
SavePNGBufferFunc Image::save_png_buffer_func = nullptr;
void Image::_put_pixelb(int p_x, int p_y, uint32_t p_pixelsize, uint8_t *p_data, const uint8_t *p_pixel) {
uint32_t ofs = (p_y * width + p_x) * p_pixelsize;
for (uint32_t i = 0; i < p_pixelsize; i++) {
p_data[ofs + i] = p_pixel[i];
}
void Image::_put_pixelb(int p_x, int p_y, uint32_t p_pixel_size, uint8_t *p_data, const uint8_t *p_pixel) {
uint32_t ofs = (p_y * width + p_x) * p_pixel_size;
memcpy(p_data + ofs, p_pixel, p_pixel_size);
}
void Image::_get_pixelb(int p_x, int p_y, uint32_t p_pixelsize, const uint8_t *p_data, uint8_t *p_pixel) {
uint32_t ofs = (p_y * width + p_x) * p_pixelsize;
for (uint32_t i = 0; i < p_pixelsize; i++) {
p_pixel[i] = p_data[ofs + i];
}
void Image::_get_pixelb(int p_x, int p_y, uint32_t p_pixel_size, const uint8_t *p_data, uint8_t *p_pixel) {
uint32_t ofs = (p_y * width + p_x) * p_pixel_size;
memcpy(p_pixel, p_data + ofs, p_pixel_size);
}
int Image::get_format_pixel_size(Format p_format) {
@ -2454,6 +2448,19 @@ void Image::blend_rect_mask(const Ref<Image> &p_src, const Ref<Image> &p_mask, c
unlock();
}
// Repeats `p_pixel` `p_count` times in consecutive memory.
// Results in the original pixel and `p_count - 1` subsequent copies of it.
void Image::_repeat_pixel_over_subsequent_memory(uint8_t *p_pixel, int p_pixel_size, int p_count) {
int offset = 1;
for (int stride = 1; offset + stride <= p_count; stride *= 2) {
memcpy(p_pixel + offset * p_pixel_size, p_pixel, stride * p_pixel_size);
offset += stride;
}
if (offset < p_count) {
memcpy(p_pixel + offset * p_pixel_size, p_pixel, (p_count - offset) * p_pixel_size);
}
}
void Image::fill(const Color &p_color) {
ERR_FAIL_COND_MSG(!_can_modify(format), "Cannot fill in compressed or custom image formats.");
@ -2467,15 +2474,7 @@ void Image::fill(const Color &p_color) {
// Put first pixel with the format-aware API.
set_pixel(0, 0, p_color);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
uint8_t *dst = &dst_data_ptr[(y * width + x) * pixel_size];
for (int k = 0; k < pixel_size; k++) {
dst[k] = dst_data_ptr[k];
}
}
}
_repeat_pixel_over_subsequent_memory(dst_data_ptr, pixel_size, width * height);
unlock();
}
@ -2496,16 +2495,16 @@ void Image::fill_rect(const Rect2 &p_rect, const Color &p_color) {
int pixel_size = get_format_pixel_size(format);
// Put first pixel with the format-aware API.
uint8_t *rect_first_pixel_ptr = &dst_data_ptr[(r.position.y * width + r.position.x) * pixel_size];
set_pixelv(r.position, p_color);
const uint8_t *rect_first_pixel_ptr = &dst_data_ptr[(r.position.y * width + r.position.x) * pixel_size];
for (int y = r.position.y; y < r.position.y + r.size.y; y++) {
for (int x = r.position.x; x < r.position.x + r.size.x; x++) {
uint8_t *dst = &dst_data_ptr[(y * width + x) * pixel_size];
for (int k = 0; k < pixel_size; k++) {
dst[k] = rect_first_pixel_ptr[k];
}
if (r.size.x == width) {
// No need to fill rows separately.
_repeat_pixel_over_subsequent_memory(rect_first_pixel_ptr, pixel_size, width * r.size.y);
} else {
_repeat_pixel_over_subsequent_memory(rect_first_pixel_ptr, pixel_size, r.size.x);
for (int y = 1; y < r.size.y; y++) {
memcpy(rect_first_pixel_ptr + y * width * pixel_size, rect_first_pixel_ptr, r.size.x * pixel_size);
}
}

6
core/image.h
View file

@ -186,8 +186,10 @@ private:
static int _get_dst_image_size(int p_width, int p_height, Format p_format, int &r_mipmaps, int p_mipmaps = -1);
bool _can_modify(Format p_format) const;
_FORCE_INLINE_ void _put_pixelb(int p_x, int p_y, uint32_t p_pixelsize, uint8_t *p_data, const uint8_t *p_pixel);
_FORCE_INLINE_ void _get_pixelb(int p_x, int p_y, uint32_t p_pixelsize, const uint8_t *p_data, uint8_t *p_pixel);
_FORCE_INLINE_ void _put_pixelb(int p_x, int p_y, uint32_t p_pixel_size, uint8_t *p_data, const uint8_t *p_pixel);
_FORCE_INLINE_ void _get_pixelb(int p_x, int p_y, uint32_t p_pixel_size, const uint8_t *p_data, uint8_t *p_pixel);
_FORCE_INLINE_ void _repeat_pixel_over_subsequent_memory(uint8_t *p_pixel, int p_pixel_size, int p_count);
void _set_data(const Dictionary &p_data);
Dictionary _get_data() const;