LineageOS/android_development
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

emulator opengl: Added glUtilsPixelBitSize function to glUtils.

Browse Source 
moved pixel size calculation from GLClientState to glUtils to be used
outside the client state scope. (needed for the renderControl encoder
which will follow in next commit).

Change-Id: I5adbc40b241537054c6743e2afc52ba44454664f
This commit is contained in:
Guy Zadikario
2011-04-10 10:31:14 +03:00
parent caafd4df2e
commit fc2d0b09ec
3 changed files with 58 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
View File

@@ -145,3 +145,59 @@ void glUtilsPackPointerData(unsigned char *dst, unsigned char *src,
}
}
}
int glUtilsPixelBitSize(GLenum format, GLenum type)
{
int components = 0;
int componentsize = 0;
int pixelsize = 0;
switch(type) {
case GL_UNSIGNED_BYTE:
componentsize = 8;
break;
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_RGB565_OES:
case GL_RGB5_A1_OES:
case GL_RGBA4_OES:
pixelsize = 16;
break;
default:
ERR("glUtilsPixelBitSize: unknown pixel type - assuming pixel data 0\n");
componentsize = 0;
}
if (pixelsize == 0) {
switch(format) {
#if 0
case GL_RED:
case GL_GREEN:
case GL_BLUE:
#endif
case GL_ALPHA:
case GL_LUMINANCE:
components = 1;
break;
case GL_LUMINANCE_ALPHA:
components = 2;
break;
case GL_RGB:
#if 0
case GL_BGR:
#endif
components = 3;
break;
case GL_RGBA:
case GL_BGRA_EXT:
components = 4;
break;
default:
ERR("glUtilsPixelBitSize: unknown pixel format...\n");
components = 0;
}
pixelsize = components * componentsize;
}
return pixelsize;
}