glx: Handling RENDER_TYPE in glXCreateContext and init_fbconfig_for_chooser.
This patch sets the correct values of renderType
in glXCreateContext and init_fbconfig_for_chooser routines.
---
src/glx/glxcmds.c | 28 ++++++++++++++++++++++++----
1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index 51b2237..aca55c0 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -373,7 +373,28 @@ glXCreateContext(Display * dpy, XVisualInfo * vis,
return None;
}
- renderType = config->rgbMode ? GLX_RGBA_TYPE : GLX_COLOR_INDEX_TYPE;
+ /* Choose the context render type based on DRI config values.
+ * It is unusual to set this type from config, but we have no other choice,
+ * as this old API does not provide renderType parameter. */
+ if (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) {
+ renderType = GLX_RGBA_FLOAT_TYPE_ARB;
+ } else if (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
+ renderType = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
+ } else if (config->renderType & GLX_RGBA_BIT) {
+ renderType = GLX_RGBA_TYPE;
+ } else if (config->renderType & GLX_COLOR_INDEX_BIT) {
+ renderType = GLX_COLOR_INDEX_TYPE;
+ } else if (config->rgbMode) {
+ /* If we're here, then renderType is not set correctly.
+ * Let's use a safeguard - any TrueColor or DirectColor mode is RGB
mode. */
+ * Such default value is needed by old DRI drivers, which didn't set
+ * renderType correctly as the value was just ignored. */
+ renderType = GLX_RGBA_TYPE;
+ } else {
+ /* Safeguard - only one option left, all non-RGB modes are indexed
modes.
+ * Again, this allows drivers with invalid renderType to work properly.
*/
+ renderType = GLX_COLOR_INDEX_TYPE;
+ }
#endif
return CreateContext(dpy, vis->visualid, config, shareList, allowDirect,
@@ -876,9 +897,8 @@ init_fbconfig_for_chooser(struct glx_config * config,
config->transparentAlpha = GLX_DONT_CARE;
config->transparentIndex = GLX_DONT_CARE;
- config->drawableType = GLX_WINDOW_BIT;
- config->renderType =
- (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT;
+ /* Set GLX_RENDER_TYPE property to not expect any flags by default. */
+ config->renderType = 0;
config->xRenderable = GLX_DONT_CARE;
config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
--
1.7.9.5
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