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allocate larger TempImage, use COMBO var to choose test format/type

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This commit is contained in:
Brian Paul 2006-09-23 16:09:26 +00:00
parent 7b803d649a
commit 1ad12874b3
1 changed files with 16 additions and 15 deletions
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31
progs/demos/readpix.c
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@ -29,33 +29,32 @@ static GLboolean ScaleAndBias = GL_FALSE;
static GLboolean Benchmark = GL_FALSE;
static GLubyte *TempImage = NULL;
#if 0
#define COMBO 1
#if COMBO == 0
#define ReadFormat ImgFormat
#define ReadType GL_UNSIGNED_BYTE
#endif
#if 1
#elif COMBO == 1
static GLenum ReadFormat = GL_RGBA;
static GLenum ReadType = GL_UNSIGNED_BYTE;
#endif
#if 0
#elif COMBO == 2
static GLenum ReadFormat = GL_RGB;
static GLenum ReadType = GL_UNSIGNED_BYTE;
#endif
#if 0
#elif COMBO == 3
static GLenum ReadFormat = GL_RGB;
static GLenum ReadType = GL_UNSIGNED_SHORT_5_6_5;
#endif
#if 0
#elif COMBO == 4
static GLenum ReadFormat = GL_RGBA;
static GLenum ReadType = GL_UNSIGNED_SHORT_1_5_5_5_REV;
#endif
#if 0
#elif COMBO == 5
static GLenum ReadFormat = GL_BGRA;
static GLenum ReadType = GL_UNSIGNED_SHORT_5_5_5_1;
#endif
#if 0
#elif COMBO == 6
static GLenum ReadFormat = GL_BGRA;
static GLenum ReadType = GL_UNSIGNED_SHORT_4_4_4_4_REV;
#elif COMBO == 7
static GLenum ReadFormat = GL_RGBA;
static GLenum ReadType = GL_HALF_FLOAT_ARB;
#undef GL_OES_read_format
#endif
@ -313,8 +312,10 @@ Init( GLboolean ciMode )
Reset();
/* allocate an extra 1KB in case we're tinkering with pack alignment */
TempImage = (GLubyte *) malloc(ImgWidth * ImgHeight * 4 * sizeof(GLubyte)
/* allocate large TempImage to store and image data type, plus an
* extra 1KB in case we're tinkering with pack alignment.
*/
TempImage = (GLubyte *) malloc(ImgWidth * ImgHeight * 4 * 4
+ 1000);
assert(TempImage);
}