diff options
Diffstat (limited to 'src/mesa/main/texstore.c')
| -rw-r--r-- | src/mesa/main/texstore.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 994fb16730..a570525155 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -3608,10 +3608,29 @@ _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, - &ctx->Pack, IMAGE_RED_TO_LUMINANCE); + &ctx->Pack, 0x0 /*image xfer ops*/); } /* format */ } /* row */ } /* img */ |