#include "tgsi/tgsi_exec.h"
-#include "lp_setup.h"
+/**
+ * Describes how to compute the interpolation coefficients (a0, dadx, dady)
+ * from the vertices passed into our triangle/line/point functions by the
+ * draw module.
+ *
+ * Vertices are treated as an array of float[4] values, indexed by
+ * src_index.
+ *
+ * LP_INTERP_COLOR is translated to either LP_INTERP_CONSTANT or
+ * PERSPECTIVE depending on flatshade state.
+ */
+enum lp_interp {
+ LP_INTERP_CONSTANT,
+ LP_INTERP_COLOR,
+ LP_INTERP_LINEAR,
+ LP_INTERP_PERSPECTIVE,
+ LP_INTERP_POSITION,
+ LP_INTERP_FACING
+};
+
+struct lp_shader_input {
+ uint interp:4; /* enum lp_interp */
+ uint usage_mask:4; /* bitmask of TGSI_WRITEMASK_x flags */
+ uint src_index:8; /* where to find values in incoming vertices */
+ uint cyl_wrap:4; /* TGSI_CYLINDRICAL_WRAP_x flags */
+ uint padding:12;
+};
struct lp_build_interp_soa_context
{
- /* QUAD_SIZE x float */
+ /* TGSI_QUAD_SIZE x float */
struct lp_build_context coeff_bld;
+ struct lp_build_context setup_bld;
unsigned num_attribs;
unsigned mask[1 + PIPE_MAX_SHADER_INPUTS]; /**< TGSI_WRITE_MASK_x */
enum lp_interp interp[1 + PIPE_MAX_SHADER_INPUTS];
+ boolean simple_interp;
+ boolean depth_clamp;
+
+ double pos_offset;
LLVMValueRef x;
LLVMValueRef y;
- LLVMValueRef a [1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
- LLVMValueRef dadq[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
+ LLVMValueRef a[1 + PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS];
+ LLVMValueRef dadq[1 + PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS];
+ LLVMValueRef a0aos[1 + PIPE_MAX_SHADER_INPUTS];
+ LLVMValueRef dadxaos[1 + PIPE_MAX_SHADER_INPUTS];
+ LLVMValueRef dadyaos[1 + PIPE_MAX_SHADER_INPUTS];
- LLVMValueRef attribs[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
+ LLVMValueRef attribs[1 + PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS];
+
+ LLVMValueRef xoffset_store;
+ LLVMValueRef yoffset_store;
/*
* Convenience pointers. Callers may access this one.
*/
const LLVMValueRef *pos;
- const LLVMValueRef (*inputs)[NUM_CHANNELS];
+ const LLVMValueRef (*inputs)[TGSI_NUM_CHANNELS];
};
void
lp_build_interp_soa_init(struct lp_build_interp_soa_context *bld,
+ struct gallivm_state *gallivm,
unsigned num_inputs,
const struct lp_shader_input *inputs,
+ boolean pixel_center_integer,
+ boolean depth_clamp,
LLVMBuilderRef builder,
struct lp_type type,
LLVMValueRef a0_ptr,
LLVMValueRef y);
void
-lp_build_interp_soa_update(struct lp_build_interp_soa_context *bld,
- int quad_index);
+lp_build_interp_soa_update_inputs_dyn(struct lp_build_interp_soa_context *bld,
+ struct gallivm_state *gallivm,
+ LLVMValueRef quad_start_index);
+void
+lp_build_interp_soa_update_pos_dyn(struct lp_build_interp_soa_context *bld,
+ struct gallivm_state *gallivm,
+ LLVMValueRef quad_start_index);
#endif /* LP_BLD_INTERP_H */