openharmony/third_party_qrcodegen
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_qrcodegen synced 2025-02-17 07:28:37 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Simplified C code's initializeFunctionalModules().

Browse Source
This commit is contained in:
Project Nayuki 2017-04-19 21:59:25 +00:00
parent 0cfed8c5de
commit df52f793fa
1 changed files with 20 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
c/qrcodegen.c
View File

@ -44,6 +44,7 @@ static void initializeFunctionalModules(int version, uint8_t qrcode[]);
static void drawWhiteFunctionModules(uint8_t qrcode[], int version);
static void drawFormatBits(enum qrcodegen_Ecc ecl, enum qrcodegen_Mask mask, uint8_t qrcode[], int size);
static int getAlignmentPatternPositions(int version, uint8_t result[7]);
static void fillRectangle(int left, int top, int width, int height, uint8_t qrcode[], int size);
static void appendErrorCorrection(uint8_t data[], int version, enum qrcodegen_Ecc ecl, uint8_t result[]);
static int getNumRawDataModules(int version);
@ -440,19 +441,13 @@ static void initializeFunctionalModules(int version, uint8_t qrcode[]) {
memset(qrcode, 0, (size * size + 7) / 8 * sizeof(qrcode[0]));
// Fill horizontal and vertical timing patterns
for (int i = 0; i < size; i++) {
setModule(qrcode, size, 6, i, true);
setModule(qrcode, size, i, 6, true);
}
fillRectangle(6, 0, 1, size, qrcode, size);
fillRectangle(0, 6, size, 1, qrcode, size);
// Fill 3 finder patterns (all corners except bottom right)
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 8; j++) {
setModule(qrcode, size, j, i, true);
setModule(qrcode, size, size - 1 - j, i, true);
setModule(qrcode, size, j, size - 1 - i, true);
}
}
// Fill 3 finder patterns (all corners except bottom right) and format bits
fillRectangle(0, 0, 9, 9, qrcode, size);
fillRectangle(size - 8, 0, 8, 9, qrcode, size);
fillRectangle(0, size - 8, 9, 8, qrcode, size);
// Fill numerous alignment patterns
uint8_t alignPatPos[7] = {0};
@ -461,33 +456,15 @@ static void initializeFunctionalModules(int version, uint8_t qrcode[]) {
for (int j = 0; j < numAlign; j++) {
if ((i == 0 && j == 0) || (i == 0 && j == numAlign - 1) || (i == numAlign - 1 && j == 0))
continue; // Skip the three finder corners
else {
for (int k = -2; k <= 2; k++) {
for (int l = -2; l <= 2; l++)
setModule(qrcode, size, alignPatPos[i] + l, alignPatPos[j] + k, true);
}
}
else
fillRectangle(alignPatPos[i] - 2, alignPatPos[j] - 2, 5, 5, qrcode, size);
}
}
// Fill format bits
for (int i = 0; i < 8; i++) {
setModule(qrcode, size, i, 8, true);
setModule(qrcode, size, 8, i, true);
setModule(qrcode, size, size - 1 - i, 8, true);
setModule(qrcode, size, 8, size - 1 - i, true);
}
setModule(qrcode, size, 8, 8, true);
// Fill version
if (version >= 7) {
for (int i = 0; i < 6; i++) {
for (int j = 0; j < 3; j++) {
int k = size - 11 + j;
setModule(qrcode, size, k, i, true);
setModule(qrcode, size, i, k, true);
}
}
fillRectangle(size - 11, 0, 3, 6, qrcode, size);
fillRectangle(0, size - 11, 6, 3, qrcode, size);
}
}
@ -613,6 +590,15 @@ static int getAlignmentPatternPositions(int version, uint8_t result[7]) {
}
// Sets every pixel in the range [left : left + width] * [top : top + height] to black.
static void fillRectangle(int left, int top, int width, int height, uint8_t qrcode[], int size) {
for (int dy = 0; dy < height; dy++) {
for (int dx = 0; dx < width; dx++)
setModule(qrcode, size, left + dx, top + dy, true);
}
}
// Appends error correction bytes to each block of the given data array, then interleaves bytes
// from the blocks and stores them in the result array. data[0 : rawCodewords - totalEcc] contains
// the input data. data[rawCodewords - totalEcc : rawCodewords] is used as a temporary work area