From eea6a7639f767b1d30b6ef1f91a9c49e3f3b78f0 Mon Sep 17 00:00:00 2001 From: Luca Barbieri Date: Sun, 10 Jan 2010 12:04:21 -0800 Subject: [PATCH] Fix compressed texture loads for non-minimal pitches The current glCompressedTexImage support in the state tracker assumes that compressed textures have minimal pitch. However, in some cases this is not true, such as for mipmaps of non-POT compressed textures on nVidia hardware. This patch adds a check and does a memcpy for each line instead of the whole image in that case. Signed-off-by: Keith Whitwell Tweaks for C90 compilation. --- src/mesa/state_tracker/st_cb_texture.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c index 0cec23f..f01053c 100644 --- a/src/mesa/state_tracker/st_cb_texture.c +++ b/src/mesa/state_tracker/st_cb_texture.c @@ -680,7 +680,22 @@ st_TexImage(GLcontext * ctx, * conversion and copy: */ if (compressed_src) { - memcpy(texImage->Data, pixels, imageSize); + const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width); + if(dstRowStride == srcImageStride) + memcpy(texImage->Data, pixels, imageSize); + else + { + char *dst = texImage->Data; + const char *src = pixels; + int i; + + for(i = 0; i < height; ++i) + { + memcpy(dst, src, srcImageStride); + dst += dstRowStride; + src += srcImageStride; + } + } } else { const GLuint srcImageStride = -- 2.7.4