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Loading a 32 bit bitmap

Translation to 32 bit instead of 24 please:

Glu.gluBuild2DMipmaps(Gl.GL_TEXTURE_2D, 3,
NWidth, NHeight,
Gl.GL_BGR_EXT, Gl.GL_UNSIGNED_BYTE,
pViewOfFile1);
0
rossryan
Asked:
rossryan
  • 2
1 Solution
 
void_mainCommented:
typedef struct pixel_32bit_s
{
   unsigned char r, g, b, alpha;
} pixel_32bit_t;

typedef struct pixel_24bit_s
{
   unsigned char r, g, b;
} pixel_24bit_t;

to convert it do the following:

for each pixel
{
   pixel32.r = pixel24.r;
   pixel32.g = pixel24.g;
   pixel32.b = pixel24.g;
   pixel32.alpha = 0;
}

thats it.
(to use 16 bit [obsolete] each r, g and b has 5 bits and there is a padding bit)

regards
void_main
0
 
void_mainCommented:
Small mistake:
it should be this

pixel32.b = pixel24.b;
0
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