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loaders svg: fix a wrongly handles the corner case.

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Stop the internel loop quick as possible, and state must be reset.
This commit is contained in:
Hermet Park 2021-04-13 17:17:13 +09:00 • committed by Hermet Park
parent b3559ecf56
commit d3a73f7ee9
1 changed files with 7 additions and 5 deletions
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12
src/loaders/svg/tvgSvgLoader.cpp
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@ -588,16 +588,17 @@ static Matrix* _parseTransformationMatrix(const char* value)
{
auto matrix = (Matrix*)malloc(sizeof(Matrix));
if (!matrix) return nullptr;
*matrix = { 1, 0, 0, 0, 1, 0, 0, 0, 1 };
*matrix = {1, 0, 0, 0, 1, 0, 0, 0, 1};
float points[8];
int ptCount = 0;
float sx, sy;
MatrixState state = MatrixState::Unknown;
char* str = (char*)value;
char* end = str + strlen(str);
while (str < end) {
auto state = MatrixState::Unknown;
if (isspace(*str) || (*str == ',')) {
++str;
continue;
@ -606,6 +607,7 @@ static Matrix* _parseTransformationMatrix(const char* value)
if (!strncmp(matrixTags[i].tag, str, matrixTags[i].sz - 1)) {
state = matrixTags[i].state;
str += (matrixTags[i].sz - 1);
break;
}
}
if (state == MatrixState::Unknown) goto error;
@ -650,8 +652,8 @@ static Matrix* _parseTransformationMatrix(const char* value)
}
} else if (state == MatrixState::Scale) {
if (ptCount < 1 || ptCount > 2) goto error;
sx = points[0];
sy = sx;
auto sx = points[0];
auto sy = sx;
if (ptCount == 2) sy = points[1];
Matrix tmp = { sx, 0, 0, 0, sy, 0, 0, 0, 1 };
_matrixCompose(matrix, &tmp, matrix);