From ee5b7f0574c6c5bce9ab75a2825f1fe089a57fa5 Mon Sep 17 00:00:00 2001 From: Haihao Xiang Date: Sat, 17 Mar 2007 09:42:36 -0600 Subject: [PATCH] fix some format conversion bugs in glGetTexImage(), bug 10288 --- src/mesa/main/texstore.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 994fb167306..2098bdddbf0 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -3608,6 +3608,25 @@ _mesa_get_teximage(GLcontext *ctx, GLenum target, GLint level, GLint col; for (col = 0; col < width; col++) { (*texImage->FetchTexelf)(texImage, col, row, img, rgba[col]); + if (texImage->TexFormat->BaseFormat == GL_ALPHA) { + rgba[col][RCOMP] = 0.0; + rgba[col][GCOMP] = 0.0; + rgba[col][BCOMP] = 0.0; + } + else if (texImage->TexFormat->BaseFormat == GL_LUMINANCE) { + rgba[col][GCOMP] = 0.0; + rgba[col][BCOMP] = 0.0; + rgba[col][ACOMP] = 1.0; + } + else if (texImage->TexFormat->BaseFormat == GL_LUMINANCE_ALPHA) { + rgba[col][GCOMP] = 0.0; + rgba[col][BCOMP] = 0.0; + } + else if (texImage->TexFormat->BaseFormat == GL_INTENSITY) { + rgba[col][GCOMP] = 0.0; + rgba[col][BCOMP] = 0.0; + rgba[col][ACOMP] = 1.0; + } } _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, type, dest, -- 2.30.2