diff options
Diffstat (limited to 'progs/tests/texcompsub.c')
| -rw-r--r-- | progs/tests/texcompsub.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/progs/tests/texcompsub.c b/progs/tests/texcompsub.c index 50106bf1e22..215f5711d95 100644 --- a/progs/tests/texcompsub.c +++ b/progs/tests/texcompsub.c @@ -35,6 +35,8 @@ LoadCompressedImage(void) unsigned char ImgDataTemp[ImgSize / 4]; unsigned i; const GLenum filter = GL_LINEAR; + const int half = ImgSize / 2; + glTexImage2D(Target, 0, CompFormat, ImgWidth, ImgHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL); @@ -42,11 +44,11 @@ LoadCompressedImage(void) glCompressedTexSubImage2DARB(Target, 0, 0, 0, /* pos */ ImgWidth, ImgHeight / 2, - CompFormat, ImgSize / 2, ImgData + ImgSize / 2); + CompFormat, ImgSize / 2, ImgData /*+ ImgSize / 2*/); /* top left */ for (i = 0; i < ImgHeight / 8; i++) { - memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[i * 2 * ImgWidth], ImgWidth); + memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[half + i * 2 * ImgWidth], ImgWidth); } glCompressedTexSubImage2DARB(Target, 0, 0, ImgHeight / 2, /* pos */ @@ -55,7 +57,7 @@ LoadCompressedImage(void) /* top right */ for (i = 0; i < ImgHeight / 8; i++) { - memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[i * 2 * ImgWidth + ImgWidth], ImgWidth); + memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[half + i * 2 * ImgWidth + ImgWidth], ImgWidth); } glCompressedTexSubImage2DARB(Target, 0, ImgWidth / 2, ImgHeight / 2, /* pos */ |