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 23da10dab..59fb04a98 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);
}
|