diff options
| author | Stéphane Marchesin <[email protected]> | 2018-02-09 17:21:59 -0800 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2018-02-13 14:23:54 +1000 |
| commit | 5e4a2b394eb03d5b49df8d3f2263c65b24ad2bb9 (patch) | |
| tree | 0c873e0cd3f25592a749c62f9a07fe0266b1ebdd /src/gallium/winsys | |
| parent | 10457712edb744d358c4b7c891fdaa1a6c136046 (diff) | |
virgl: Support v2 caps struct (v2)
This struct allows us to report:
- accurate max point size/line width.
- accurate texel and texture gather offsets
- vertex/geometry limits.
Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium/winsys')
| -rw-r--r-- | src/gallium/winsys/virgl/drm/virgl_drm_winsys.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c b/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c index 71e652ebf31..fd6ae98a515 100644 --- a/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c +++ b/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c @@ -704,13 +704,49 @@ static int virgl_drm_get_caps(struct virgl_winsys *vws, { struct virgl_drm_winsys *vdws = virgl_drm_winsys(vws); struct drm_virtgpu_get_caps args; + int ret; + bool fill_v2 = false; memset(&args, 0, sizeof(args)); args.cap_set_id = 1; args.addr = (unsigned long)&caps->caps; args.size = sizeof(union virgl_caps); - return drmIoctl(vdws->fd, DRM_IOCTL_VIRTGPU_GET_CAPS, &args); + + ret = drmIoctl(vdws->fd, DRM_IOCTL_VIRTGPU_GET_CAPS, &args); + + if (ret == -1 && errno == EINVAL) { + /* Fallback to v1 */ + args.size = sizeof(struct virgl_caps_v1); + ret = drmIoctl(vdws->fd, DRM_IOCTL_VIRTGPU_GET_CAPS, &args); + if (ret == -1) + return ret; + fill_v2 = true; + } + if (caps->caps.max_version == 1) + fill_v2 = true; + + if (fill_v2) { + caps->caps.v2.min_aliased_point_size = 0.f; + caps->caps.v2.max_aliased_point_size = 255.f; + caps->caps.v2.min_smooth_point_size = 0.f; + caps->caps.v2.max_smooth_point_size = 255.f; + caps->caps.v2.min_aliased_line_width = 0.f; + caps->caps.v2.max_aliased_line_width = 255.f; + caps->caps.v2.min_smooth_line_width = 0.f; + caps->caps.v2.max_smooth_line_width = 255.f; + caps->caps.v2.max_texture_lod_bias = 16.0f; + caps->caps.v2.max_geom_output_vertices = 256; + caps->caps.v2.max_geom_total_output_components = 16384; + caps->caps.v2.max_vertex_outputs = 32; + caps->caps.v2.max_vertex_attribs = 16; + caps->caps.v2.max_shader_patch_varyings = 0; + caps->caps.v2.min_texel_offset = -8; + caps->caps.v2.max_texel_offset = 7; + caps->caps.v2.min_texture_gather_offset = -8; + caps->caps.v2.max_texture_gather_offset = 7; + } + return ret; } #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x))) |