From 2f9ceb158afffe5ea390b909261988267e663e36 Mon Sep 17 00:00:00 2001 From: "Xiang, Haihao" Date: Wed, 19 Nov 2008 11:22:35 +0800 Subject: mesa: clamp luminance if needed. This fixes glReadPixels(GL_LUMINANCE, GL_FLOAT)/glGetTexImage(GL_LUMINANCE, GL_FLOAT) issue on fixed-point color buffers. --- src/mesa/main/image.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mesa/main/image.c') diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index 1a6e864b98..4551b4a3b5 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -1689,7 +1689,7 @@ _mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4], if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) { /* compute luminance values */ - if (dstType != GL_FLOAT || ctx->Color.ClampReadColor == GL_TRUE) { + if (transferOps & IMAGE_CLAMP_BIT) { for (i = 0; i < n; i++) { GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; luminance[i] = CLAMP(sum, 0.0F, 1.0F); -- cgit v1.2.3