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-rw-r--r--src/openvic/utility/BMP.cpp163
1 files changed, 0 insertions, 163 deletions
diff --git a/src/openvic/utility/BMP.cpp b/src/openvic/utility/BMP.cpp
deleted file mode 100644
index 9a90d68..0000000
--- a/src/openvic/utility/BMP.cpp
+++ /dev/null
@@ -1,163 +0,0 @@
-#include "BMP.hpp"
-
-#include <cstring>
-#include <set>
-
-#include "Logger.hpp"
-
-using namespace OpenVic;
-
-BMP::~BMP() {
- close();
-}
-
-return_t BMP::open(char const* filepath) {
- reset();
- errno = 0;
- file = fopen(filepath, "rb");
- if (file == nullptr || errno != 0) {
- Logger::error("Failed to open BMP file \"", filepath, "\" (errno = ", errno, ")");
- file = nullptr;
- return FAILURE;
- }
- return SUCCESS;
-}
-
-return_t BMP::read_header() {
- if (header_validated) {
- Logger::error("BMP header already validated!");
- return FAILURE;
- }
- if (file == nullptr) {
- Logger::error("Cannot read BMP header before opening a file");
- return FAILURE;
- }
- if (fseek(file, 0, SEEK_SET) != 0) {
- Logger::error("Failed to move to the beginning of the BMP file!");
- return FAILURE;
- }
- if (fread(&header, sizeof(header), 1, file) != 1) {
- Logger::error("Failed to read BMP header!");
- return FAILURE;
- }
- return_t ret = SUCCESS;
-
- // Validate constants
- static constexpr uint16_t BMP_SIGNATURE = 0x4d42;
- if (header.signature != BMP_SIGNATURE) {
- Logger::error("Invalid BMP signature: ", header.signature, " (must be ", BMP_SIGNATURE, ")");
- ret = FAILURE;
- }
- static constexpr uint32_t DIB_HEADER_SIZE = 40;
- if (header.dib_header_size != DIB_HEADER_SIZE) {
- Logger::error("Invalid BMP DIB header size: ", header.dib_header_size, " (must be ", DIB_HEADER_SIZE, ")");
- ret = FAILURE;
- }
- static constexpr uint16_t NUM_PLANES = 1;
- if (header.num_planes != NUM_PLANES) {
- Logger::error("Invalid BMP plane count: ", header.num_planes, " (must be ", NUM_PLANES, ")");
- ret = FAILURE;
- }
- static constexpr uint16_t COMPRESSION = 0; // Only support uncompressed BMPs
- if (header.compression != COMPRESSION) {
- Logger::error("Invalid BMP compression method: ", header.compression, " (must be ", COMPRESSION, ")");
- ret = FAILURE;
- }
-
- // Validate sizes and dimensions
- // TODO - image_size_bytes can be 0 for non-compressed BMPs
- if (header.file_size != header.offset + header.image_size_bytes) {
- Logger::error("Invalid BMP memory sizes: file size = ", header.file_size, " != ", header.offset + header.image_size_bytes,
- " = ", header.offset, " + ", header.image_size_bytes, " = image data offset + image data size");
- ret = FAILURE;
- }
- // TODO - support negative widths (i.e. horizontal flip)
- if (header.width_px <= 0) {
- Logger::error("Invalid BMP width: ", header.width_px, " (must be positive)");
- ret = FAILURE;
- }
- // TODO - support negative heights (i.e. vertical flip)
- if (header.height_px <= 0) {
- Logger::error("Invalid BMP height: ", header.height_px, " (must be positive)");
- ret = FAILURE;
- }
- // TODO - validate x_resolution_ppm
- // TODO - validate y_resolution_ppm
-
- // Validate colours
-#define VALID_BITS_PER_PIXEL 1, 2, 4, 8, 16, 24, 32
-#define STR(x) #x
- static const std::set<uint16_t> BITS_PER_PIXEL { VALID_BITS_PER_PIXEL };
- if (!BITS_PER_PIXEL.contains(header.bits_per_pixel)) {
- Logger::error("Invalid BMP bits per pixel: ", header.bits_per_pixel, " (must be one of " STR(VALID_BITS_PER_PIXEL) ")");
- ret = FAILURE;
- }
-#undef VALID_BITS_PER_PIXEL
-#undef STR
- static constexpr uint16_t PALETTE_BITS_PER_PIXEL_LIMIT = 8;
- if (header.num_colours != 0 && header.bits_per_pixel > PALETTE_BITS_PER_PIXEL_LIMIT) {
- Logger::error("Invalid BMP palette size: ", header.num_colours, " (should be 0 as bits per pixel is ", header.bits_per_pixel, " > 8)");
- ret = FAILURE;
- }
- // TODO - validate important_colours
-
- palette_size = header.bits_per_pixel > PALETTE_BITS_PER_PIXEL_LIMIT ? 0
- // Use header.num_colours if it's greater than 0 and at most 1 << header.bits_per_pixel
- : 0 < header.num_colours && header.num_colours - 1 >> header.bits_per_pixel == 0 ? header.num_colours
- : 1 << header.bits_per_pixel;
-
- const uint32_t expected_offset = palette_size * PALETTE_COLOUR_SIZE + sizeof(header);
- if (header.offset != expected_offset) {
- Logger::error("Invalid BMP image data offset: ", header.offset, " (should be ", expected_offset, ")");
- ret = FAILURE;
- }
-
- header_validated = ret == SUCCESS;
- return ret;
-}
-
-return_t BMP::read_palette() {
- if (file == nullptr) {
- Logger::error("Cannot read BMP palette before opening a file");
- return FAILURE;
- }
- if (!header_validated) {
- Logger::error("Cannot read palette before BMP header is validated!");
- return FAILURE;
- }
- if (palette_size == 0) {
- Logger::error("Cannot read BMP palette - header indicates this file doesn't have one");
- return FAILURE;
- }
- if (fseek(file, sizeof(header), SEEK_SET) != 0) {
- Logger::error("Failed to move to the palette in the BMP file!");
- return FAILURE;
- }
- palette.resize(palette_size);
- if (fread(palette.data(), palette_size * PALETTE_COLOUR_SIZE, 1, file) != 1) {
- Logger::error("Failed to read BMP header!");
- palette.clear();
- return FAILURE;
- }
- return SUCCESS;
-}
-
-void BMP::close() {
- if (file != nullptr) {
- if (fclose(file) != 0)
- Logger::error("Failed to close BMP!");
- file = nullptr;
- }
-}
-
-void BMP::reset() {
- close();
- memset(&header, 0, sizeof(header));
- header_validated = false;
- palette_size = 0;
- palette.clear();
-}
-
-std::vector<colour_t> const& BMP::get_palette() const {
- return palette;
-}