vrend: Add caps for blend equation advanced

Signed-off-by: Elie Tournier <elie.tournier@collabora.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>

src/virgl_hw.h

@@ -405,6 +405,9 @@ enum virgl_formats {
 #define VIRGL_CAP_CLEAR_TEXTURE        (1 << 30)
 #define VIRGL_CAP_ARB_BUFFER_STORAGE   (1 << 31)
 
+/* These are used by the capability_bits_v2 field in virgl_caps_v2. */
+#define VIRGL_CAP_V2_BLEND_EQUATION       (1 << 0)
+
 /* virgl bind flags - these are compatible with mesa 10.5 gallium.
  * but are fixed, no other should be passed to virgl either.
  */
@@ -555,6 +558,7 @@ struct virgl_caps_v2 {
         uint32_t host_feature_check_version;
         struct virgl_supported_format_mask supported_readback_formats;
         struct virgl_supported_format_mask scanout;
+        uint32_t capability_bits_v2;
 };
 
 union virgl_caps {

src/vrend_renderer.c

@@ -108,6 +108,7 @@ enum features_id
    feat_barrier,
    feat_bind_vertex_buffers,
    feat_bit_encoding,
+   feat_blend_equation_advanced,
    feat_clear_texture,
    feat_clip_control,
    feat_compute_shader,
@@ -203,6 +204,7 @@ static const  struct {
    FEAT(barrier, 42, 31, NULL),
    FEAT(bind_vertex_buffers, 44, UNAVAIL, NULL),
    FEAT(bit_encoding, 33, UNAVAIL,  "GL_ARB_shader_bit_encoding" ),
+   FEAT(blend_equation_advanced, UNAVAIL, 32,  "GL_KHR_blend_equation_advanced" ),
    FEAT(clear_texture, 44, UNAVAIL, "GL_ARB_clear_texture", "GL_EXT_clear_texture"),
    FEAT(clip_control, 45, UNAVAIL, "GL_ARB_clip_control", "GL_EXT_clip_control"),
    FEAT(compute_shader, 43, 31,  "GL_ARB_compute_shader" ),