DrawSetTextureRGBA: Difference between revisions
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=void '''DrawSetTextureRGBA'''(int id, const unsigned char *rgba, int wide, int tall, int hardwareFilter, bool forceReload)= | =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. | 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) + offsdest; | |||
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()); | |||
==See Also== | |||
* [[CreateProceduralTexture]] | |||
* [[CreateMaterial]] | |||
[[Category:ISurface]] | [[Category:ISurface]] | ||
[[Category:Developer Issues and Workarounds]] | [[Category:Developer Issues and Workarounds]] | ||
Revision as of 18:59, 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) + offsdest;
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());