diff options
Diffstat (limited to 'bitmap.cpp')
-rw-r--r-- | bitmap.cpp | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/bitmap.cpp b/bitmap.cpp deleted file mode 100644 index ccb5390..0000000 --- a/bitmap.cpp +++ /dev/null @@ -1,53 +0,0 @@ -#include "bitmap.h" - -#define STB_IMAGE_IMPLEMENTATION -#include "stb_image.h" - -Bitmap::Bitmap(const char* image) -{ - int width, height, bitDepth; - - uint8_t* buffer = stbi_load(image, &width, &height, &bitDepth, STBI_rgb_alpha); - if (!buffer) { - return; - } - - this->width = width; - this->height = height; - data = new uint32_t[width * height]; - - for (int i = 0; i < width * height; i++) { - uint8_t r = buffer[i * 4 + 0]; - uint8_t g = buffer[i * 4 + 1]; - uint8_t b = buffer[i * 4 + 2]; - uint8_t a = buffer[i * 4 + 3]; - - data[i] = (a << 24) | (r << 16) | (g << 8) | b; - } - - stbi_image_free(buffer); -} - -void Bitmap::clear(uint32_t colour) -{ - memset(data, colour, width * height * 4); -} - -void Bitmap::blit(Bitmap const& other, int xo, int yo, int xc, int yc, int w, int h) -{ - constexpr int MaskColour = 0xffff00ff; - - for (int y = 0; y < h; ++y) { - int yp = y + yo; - if (yp < 0 || yp >= height) continue; - - for (int x = 0; x < w; ++x) { - int xp = x + xo; - if (xp < 0 || xp >= width) continue; - - int src = other.data[(x + xc) + (y + yc) * other.width]; - if (src != MaskColour) - data[xp + yp * width] = src; - } - } -}
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