diff options
Diffstat (limited to 'src/mesa/main/image.c')
| -rw-r--r-- | src/mesa/main/image.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index ea76ed04e4f..c06031e6cb2 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -1,8 +1,9 @@ /* * Mesa 3-D graphics library - * Version: 7.1 + * Version: 7.5 * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -757,12 +758,20 @@ _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing, GLint width, GLint height, GLenum format, GLenum type ) { + GLint bytesPerRow, bytesPerImage, remainder; + ASSERT(packing); - ASSERT(type != GL_BITMAP); - { + if (type == GL_BITMAP) { + if (packing->RowLength == 0) { + bytesPerRow = (width + 7) / 8; + } + else { + bytesPerRow = (packing->RowLength + 7) / 8; + } + } + else { const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type); - GLint bytesPerRow, bytesPerImage, remainder; if (bytesPerPixel <= 0) return -1; /* error */ @@ -772,17 +781,18 @@ _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing, else { bytesPerRow = bytesPerPixel * packing->RowLength; } - remainder = bytesPerRow % packing->Alignment; - if (remainder > 0) - bytesPerRow += (packing->Alignment - remainder); + } - if (packing->ImageHeight == 0) - bytesPerImage = bytesPerRow * height; - else - bytesPerImage = bytesPerRow * packing->ImageHeight; + remainder = bytesPerRow % packing->Alignment; + if (remainder > 0) + bytesPerRow += (packing->Alignment - remainder); - return bytesPerImage; - } + if (packing->ImageHeight == 0) + bytesPerImage = bytesPerRow * height; + else + bytesPerImage = bytesPerRow * packing->ImageHeight; + + return bytesPerImage; } |