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glx/swrast: Do more GLX extension setup 

This gets you nice things like core contexts when using Xvfb.

Also, no, MESA_copy_sub_buffer is not enabled automatically.

Reviewed-by: James Jones <jajones@nvidia.com>
Reviewed-by: Jon Turney <jon.turney@dronecode.org.uk>
Signed-off-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Adam Jackson 2015-05-15 11:27:31 -04:00
parent cbd3cfbad3
commit 2d7194334a
1 changed files with 34 additions and 3 deletions
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37
glx/glxdriswrast.c
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@ -71,6 +71,8 @@ struct __GLXDRIscreen {
const __DRIcopySubBufferExtension *copySubBuffer;
const __DRItexBufferExtension *texBuffer;
const __DRIconfig **driConfigs;
unsigned char glx_enable_bits[__GLX_EXT_BYTES];
};
struct __GLXDRIcontext {
@ -394,21 +396,34 @@ initializeExtensions(__GLXDRIscreen * screen)
const __DRIextension **extensions;
int i;
if (screen->swrast->base.version >= 3) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context");
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context_profile");
__glXEnableExtension(screen->glx_enable_bits,
"GLX_EXT_create_context_es2_profile");
}
/* these are harmless to enable unconditionally */
__glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_framebuffer_sRGB");
__glXEnableExtension(screen->glx_enable_bits, "GLX_ARB_fbconfig_float");
__glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_make_current_read");
extensions = screen->core->getExtensions(screen->driScreen);
for (i = 0; extensions[i]; i++) {
if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
screen->copySubBuffer =
(const __DRIcopySubBufferExtension *) extensions[i];
/* GLX_MESA_copy_sub_buffer is always enabled. */
__glXEnableExtension(screen->glx_enable_bits,
"GLX_MESA_copy_sub_buffer");
}
if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
screen->texBuffer = (const __DRItexBufferExtension *) extensions[i];
/* GLX_EXT_texture_from_pixmap is always enabled. */
}
/* Ignore unknown extensions */
}
}
@ -420,6 +435,7 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
{
const char *driverName = "swrast";
__GLXDRIscreen *screen;
size_t buffer_size;
screen = calloc(1, sizeof *screen);
if (screen == NULL)
@ -431,6 +447,8 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
screen->base.swapInterval = NULL;
screen->base.pScreen = pScreen;
__glXInitExtensionEnableBits(screen->glx_enable_bits);
screen->driver = glxProbeDriver(driverName,
(void **) &screen->core,
__DRI_CORE, 1,
@ -459,6 +477,19 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
__glXScreenInit(&screen->base, pScreen);
/* The first call simply determines the length of the extension string.
* This allows us to allocate some memory to hold the extension string,
* but it requires that we call __glXGetExtensionString a second time.
*/
buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL);
if (buffer_size > 0) {
free(screen->base.GLXextensions);
screen->base.GLXextensions = xnfalloc(buffer_size);
(void) __glXGetExtensionString(screen->glx_enable_bits,
screen->base.GLXextensions);
}
screen->base.GLXmajor = 1;
screen->base.GLXminor = 4;