At image creation create a path for dealing with the linear modifier. This works exactly like the old usage flags where __DRI_IMAGE_USE_LINEAR was specified.
During development of this patch series, it was decided that a lack of modifier was an insufficient way to express the required modifiers. As a result, 0 was repurposed to mean a modifier for a LINEAR layout. NOTE: This patch was added for v3 of the patch series. References: https://patchwork.kernel.org/patch/9419157/ Signed-off-by: Ben Widawsky <b...@bwidawsk.net> --- src/mesa/drivers/dri/i965/intel_screen.c | 35 ++++++++++++++++++++++++-------- 1 file changed, 27 insertions(+), 8 deletions(-) diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c index 7429603e86..22ab3a30b6 100644 --- a/src/mesa/drivers/dri/i965/intel_screen.c +++ b/src/mesa/drivers/dri/i965/intel_screen.c @@ -45,6 +45,10 @@ #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1) #endif +#ifndef DRM_FORMAT_MOD_LINEAR +#define DRM_FORMAT_MOD_LINEAR 0 +#endif + static const __DRIconfigOptionsExtension brw_config_options = { .base = { __DRI_CONFIG_OPTIONS, 1 }, .xml = @@ -516,8 +520,16 @@ select_best_modifier(struct gen_device_info *devinfo, const uint64_t *modifiers, const unsigned count) { - /* Modifiers are not supported by this DRI driver */ - return DRM_FORMAT_MOD_INVALID; + uint64_t modifier = DRM_FORMAT_MOD_INVALID; + + for (int i = 0; i < count; i++) { + switch (modifiers[i]) { + case DRM_FORMAT_MOD_LINEAR: + return modifiers[i]; + } + } + + return modifier; } static __DRIimage * @@ -530,7 +542,10 @@ intel_create_image_common(__DRIscreen *dri_screen, { __DRIimage *image; struct intel_screen *screen = dri_screen->driverPrivate; - uint32_t tiling; + /* Historically, X-tiled was the default, and so lack of modifier means + * X-tiled. + */ + uint32_t tiling = I915_TILING_X; int cpp; unsigned long pitch; @@ -541,12 +556,15 @@ intel_create_image_common(__DRIscreen *dri_screen, assert(!(use && count)); uint64_t modifier = select_best_modifier(&screen->devinfo, modifiers, count); - assert(modifier == DRM_FORMAT_MOD_INVALID); + switch (modifier) { + case DRM_FORMAT_MOD_LINEAR: + tiling = I915_TILING_NONE; + break; + case DRM_FORMAT_MOD_INVALID: + default: + break; + } - /* Historically, X-tiled was the default, and so lack of modifier means - * X-tiled. - */ - tiling = I915_TILING_X; if (use & __DRI_IMAGE_USE_CURSOR) { if (width != 64 || height != 64) return NULL; @@ -571,6 +589,7 @@ intel_create_image_common(__DRIscreen *dri_screen, image->width = width; image->height = height; image->pitch = pitch; + image->modifier = modifier; return image; } -- 2.12.0 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
