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Add LoadIconsFromMemory (#449)

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This commit is contained in:
Liam Weitzel
2025-01-21 23:29:48 +01:00
committed by GitHub
parent 4646769751
commit 004d5bf6f5
1 changed files with 51 additions and 0 deletions
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51
src/raygui.h
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@ -4451,6 +4451,57 @@ char **GuiLoadIcons(const char *fileName, bool loadIconsName)
return guiIconsName;
}
// Load icons from memory
// WARNING: Binary files only
char **GuiLoadIconsFromMemory(const unsigned char *fileData, size_t dataSize, bool loadIconsName)
{
const unsigned char *ptr = fileData;
char signature[5] = { 0 };
memcpy(signature, ptr, 4);
ptr += 4;
short version = *(short *)ptr;
ptr += sizeof(short);
short reserved = *(short *)ptr;
ptr += sizeof(short);
short iconCount = *(short *)ptr;
ptr += sizeof(short);
short iconSize = *(short *)ptr;
ptr += sizeof(short);
char **guiIconsName = NULL;
if ((signature[0] == 'r') &&
(signature[1] == 'G') &&
(signature[2] == 'I') &&
(signature[3] == ' '))
{
if (loadIconsName)
{
guiIconsName = (char **)RAYGUI_MALLOC(iconCount * sizeof(char *));
for (int i = 0; i < iconCount; i++)
{
guiIconsName[i] = (char *)RAYGUI_MALLOC(RAYGUI_ICON_MAX_NAME_LENGTH);
memcpy(guiIconsName[i], ptr, RAYGUI_ICON_MAX_NAME_LENGTH);
ptr += RAYGUI_ICON_MAX_NAME_LENGTH;
}
}
else
{
// Skip icon name data
ptr += iconCount * RAYGUI_ICON_MAX_NAME_LENGTH;
}
int iconDataSize = iconCount * (iconSize * iconSize / 32) * sizeof(unsigned int);
guiIconsPtr = (unsigned int *)RAYGUI_MALLOC(iconDataSize);
memcpy(guiIconsPtr, ptr, iconDataSize);
}
return guiIconsName;
}
// Draw selected icon using rectangles pixel-by-pixel
void GuiDrawIcon(int iconId, int posX, int posY, int pixelSize, Color color)
{