diff options
Diffstat (limited to 'src/gallium/state_trackers/xorg/xorg_dri2.c')
| -rw-r--r-- | src/gallium/state_trackers/xorg/xorg_dri2.c | 50 |
1 files changed, 39 insertions, 11 deletions
diff --git a/src/gallium/state_trackers/xorg/xorg_dri2.c b/src/gallium/state_trackers/xorg/xorg_dri2.c index fd82f4fa1d..59588f0ff7 100644 --- a/src/gallium/state_trackers/xorg/xorg_dri2.c +++ b/src/gallium/state_trackers/xorg/xorg_dri2.c @@ -41,12 +41,14 @@ #include "pipe/p_inlines.h" #include "util/u_format.h" -#include "util/u_rect.h" /* Make all the #if cases in the code esier to read */ -/* XXX can it be set to 1? */ #ifndef DRI2INFOREC_VERSION -#define DRI2INFOREC_VERSION 0 +#define DRI2INFOREC_VERSION 1 +#endif + +#if DRI2INFOREC_VERSION == 2 +static Bool set_format_in_do_create_buffer; #endif typedef struct { @@ -147,7 +149,9 @@ dri2_do_create_buffer(DrawablePtr pDraw, DRI2BufferPtr buffer, unsigned int form buffer->driverPrivate = private; buffer->flags = 0; /* not tiled */ #if DRI2INFOREC_VERSION == 2 - ((DRI2Buffer2Ptr)buffer)->format = 0; + /* ABI forwards/backwards compatibility */ + if (set_format_in_do_create_buffer) + ((DRI2Buffer2Ptr)buffer)->format = 0; #elif DRI2INFOREC_VERSION >= 3 buffer->format = 0; #endif @@ -211,7 +215,9 @@ dri2_destroy_buffer(DrawablePtr pDraw, DRI2Buffer2Ptr buffer) xfree(buffer); } -#else /* DRI2INFOREC_VERSION < 2 */ +#endif /* DRI2INFOREC_VERSION >= 2 */ + +#if DRI2INFOREC_VERSION <= 2 static DRI2BufferPtr dri2_create_buffers(DrawablePtr pDraw, unsigned int *attachments, int count) @@ -261,7 +267,7 @@ dri2_destroy_buffers(DrawablePtr pDraw, DRI2BufferPtr buffers, int count) } } -#endif /* DRI2INFOREC_VERSION >= 2 */ +#endif /* DRI2INFOREC_VERSION <= 2 */ static void dri2_copy_region(DrawablePtr pDraw, RegionPtr pRegion, @@ -369,12 +375,19 @@ xorg_dri2_init(ScreenPtr pScreen) ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; modesettingPtr ms = modesettingPTR(pScrn); DRI2InfoRec dri2info; - #if DRI2INFOREC_VERSION >= 2 - dri2info.version = DRI2INFOREC_VERSION; -#else - dri2info.version = 1; + int major, minor; + + if (xf86LoaderCheckSymbol("DRI2Version")) { + DRI2Version(&major, &minor); + } else { + /* Assume version 1.0 */ + major = 1; + minor = 0; + } #endif + + dri2info.version = DRI2INFOREC_VERSION; dri2info.fd = ms->fd; dri2info.driverName = pScrn->driverName; @@ -383,7 +396,22 @@ xorg_dri2_init(ScreenPtr pScreen) #if DRI2INFOREC_VERSION >= 2 dri2info.CreateBuffer = dri2_create_buffer; dri2info.DestroyBuffer = dri2_destroy_buffer; -#else +#endif + + /* For X servers in the 1.6.x series there where two DRI2 version. + * This allows us to build one binary that works on both servers. + */ +#if DRI2INFOREC_VERSION == 2 + if (minor == 0) { + set_format_in_do_create_buffer = FALSE; + dri2info.CreateBuffers = dri2_create_buffers; + dri2info.DestroyBuffers = dri2_destroy_buffers; + } else + set_format_in_do_create_buffer = FALSE; +#endif + + /* For version 1 set these unconditionaly. */ +#if DRI2INFOREC_VERSION == 1 dri2info.CreateBuffers = dri2_create_buffers; dri2info.DestroyBuffers = dri2_destroy_buffers; #endif |