diff options
Diffstat (limited to 'mesalib/src/mesa/swrast/s_readpix.c')
| -rw-r--r-- | mesalib/src/mesa/swrast/s_readpix.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/mesalib/src/mesa/swrast/s_readpix.c b/mesalib/src/mesa/swrast/s_readpix.c index 5c8d7e9c5..214f2ea1a 100644 --- a/mesalib/src/mesa/swrast/s_readpix.c +++ b/mesalib/src/mesa/swrast/s_readpix.c @@ -191,7 +191,13 @@ fast_read_rgba_pixels( struct gl_context *ctx, if (!rb) return GL_FALSE; - ASSERT(rb->_BaseFormat == GL_RGBA || rb->_BaseFormat == GL_RGB || + ASSERT(rb->_BaseFormat == GL_RGBA || + rb->_BaseFormat == GL_RGB || + rb->_BaseFormat == GL_RG || + rb->_BaseFormat == GL_RED || + rb->_BaseFormat == GL_LUMINANCE || + rb->_BaseFormat == GL_INTENSITY || + rb->_BaseFormat == GL_LUMINANCE_ALPHA || rb->_BaseFormat == GL_ALPHA); /* clipping should have already been done */ @@ -312,12 +318,12 @@ read_rgba_pixels( struct gl_context *ctx, if (!rb) return; - if (type == GL_FLOAT && ((ctx->Color.ClampReadColor == GL_TRUE) || - (ctx->Color.ClampReadColor == GL_FIXED_ONLY_ARB && - rb->DataType != GL_FLOAT))) + if ((ctx->Color._ClampReadColor == GL_TRUE || type != GL_FLOAT) && + !_mesa_is_integer_format(format)) { transferOps |= IMAGE_CLAMP_BIT; + } - /* Try optimized path first */ + /* Try the optimized path first. */ if (fast_read_rgba_pixels(ctx, x, y, width, height, format, type, pixels, packing, transferOps)) { return; /* done! */ @@ -341,9 +347,9 @@ read_rgba_pixels( struct gl_context *ctx, _swrast_read_rgba_span(ctx, rb, width, x, y, GL_FLOAT, rgba); /* apply fudge factor for shallow color buffers */ - if (fb->Visual.redBits < 8 || - fb->Visual.greenBits < 8 || - fb->Visual.blueBits < 8) { + if ((fb->Visual.redBits < 8 && fb->Visual.redBits != 0) || + (fb->Visual.greenBits < 8 && fb->Visual.greenBits != 0) || + (fb->Visual.blueBits < 8 && fb->Visual.blueBits != 0)) { adjust_colors(fb, width, rgba); } |