* Number of channels of the vertex attribute that need GL_FIXED rescaling
*/
uint8_t gl_fixed_input_size[VERT_ATTRIB_MAX];
- GLuint nr_userclip:4;
+
+ /**
+ * True if at least one clip flag is enabled, regardless of whether the
+ * shader uses clip planes or gl_ClipDistance.
+ */
+ GLuint userclip_active:1;
+
+ /**
+ * How many user clipping planes are being uploaded to the vertex shader as
+ * push constants.
+ */
+ GLuint nr_userclip_plane_consts:4;
+
+ /**
+ * True if the shader uses gl_ClipDistance, regardless of whether any clip
+ * flags are enabled.
+ */
+ GLuint uses_clip_distance:1;
+
+ /**
+ * For pre-Gen6 hardware, a bitfield indicating which clipping planes are
+ * enabled. This is used to compact clip planes.
+ *
+ * For Gen6 and later hardware, clip planes are not compacted, so this
+ * value is zero to avoid provoking unnecessary shader recompiles.
+ */
+ GLuint userclip_planes_enabled_gen_4_5:MAX_CLIP_PLANES;
+
GLuint copy_edgeflag:1;
GLuint point_coord_replace:8;
- GLuint two_side_color: 1;
GLuint clamp_vertex_color:1;
};
struct brw_reg stack;
struct {
- GLboolean used_in_src;
+ bool used_in_src;
struct brw_reg reg;
} output_regs[128];
- struct brw_reg userplane[6];
+ struct brw_reg userplane[MAX_CLIP_PLANES];
/** we may need up to 3 constants per instruction (if use_const_buffer) */
struct {
struct brw_reg reg;
} current_const[3];
- GLboolean needs_stack;
+ bool needs_stack;
};
bool brw_vs_emit(struct gl_shader_program *prog, struct brw_vs_compile *c);