DrawSetTextureRGBA: Difference between revisions
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void DrawSetTextureRGBA(int id, const unsigned char *rgba,
m (break) |
m (→Raw Data) |
||
| Line 10: | Line 10: | ||
{ | { | ||
int offset = (j * 256 + i) * 4; | int offset = (j * 256 + i) * 4; | ||
char *dst = ((char*)abPic) + | char *dst = ((char*)abPic) + offset; | ||
dst[0] = (unsigned char)255;//red | dst[0] = (unsigned char)255;//red | ||
| Line 18: | Line 18: | ||
} | } | ||
} | } | ||
===Set Up Texture ID=== | ===Set Up Texture ID=== | ||
m_iHudTexture=surface()->[[CreateNewTextureID]](); | m_iHudTexture=surface()->[[CreateNewTextureID]](); | ||
Revision as of 22:32, 9 May 2006
void DrawSetTextureRGBA(int id, const unsigned char *rgba,
int wide, int tall, int hardwareFilter, bool forceReload)
This is a function that you should use to draw raw RGBA data to the HUD, for example when you are rendering a mask.
Sample
Initialization
unsigned char abPic[128 * 256 * 4];
Raw Data
for (j = 0; j < 128; j++) // up/down traverse
{
for (i = 0; i < 256; i++) // left/right traverse
{
int offset = (j * 256 + i) * 4;
char *dst = ((char*)abPic) + offset;
dst[0] = (unsigned char)255;//red
dst[1] = (unsigned char)255;//green
dst[2] = (unsigned char)255;//blue
dst[3] = (unsigned char)255;//alpha
}
}
Set Up Texture ID
m_iHudTexture=surface()->CreateNewTextureID(); surface()->DrawSetTextureRGBA(m_iHudTexture,(unsigned char*)abPic,128,256,false,true); surface()->DrawSetColor(Color(255,255,255,128)); surface()->DrawTexturedRect(0,0,GetWide(),GetTall());