diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_shader.h')
| -rw-r--r-- | src/gallium/drivers/svga/svga_shader.h | 278 |
1 files changed, 277 insertions, 1 deletions
diff --git a/src/gallium/drivers/svga/svga_shader.h b/src/gallium/drivers/svga/svga_shader.h index 5102159b96a..b0800c1ecad 100644 --- a/src/gallium/drivers/svga/svga_shader.h +++ b/src/gallium/drivers/svga/svga_shader.h @@ -27,8 +27,241 @@ #define SVGA_SHADER_H #include "svga3d_reg.h" +#include "svga_context.h" +#include "svga_streamout.h" -struct svga_shader_variant; + +/** + * We use a 64-bit mask to keep track of the generic indexes. + * This is the maximum semantic index for a TGSI GENERIC[i] register. + */ +#define MAX_GENERIC_VARYING 64 + + +struct svga_context; + + +struct svga_compile_key +{ + /* vertex shader only */ + struct { + uint64_t fs_generic_inputs; + unsigned passthrough:1; + unsigned need_prescale:1; + unsigned undo_viewport:1; + unsigned allow_psiz:1; + /** The following are all 32-bit bitmasks (per VS input) */ + unsigned adjust_attrib_range; + unsigned attrib_is_pure_int; + unsigned adjust_attrib_w_1; + unsigned adjust_attrib_itof; + unsigned adjust_attrib_utof; + unsigned attrib_is_bgra; + unsigned attrib_puint_to_snorm; + unsigned attrib_puint_to_uscaled; + unsigned attrib_puint_to_sscaled; + } vs; + + /* geometry shader only */ + struct { + uint64_t vs_generic_outputs; + unsigned need_prescale:1; + unsigned writes_psize:1; + unsigned wide_point:1; + } gs; + + /* fragment shader only */ + struct { + uint64_t vs_generic_outputs; + uint64_t gs_generic_outputs; + unsigned light_twoside:1; + unsigned front_ccw:1; + unsigned white_fragments:1; + unsigned flatshade:1; + unsigned pstipple:1; + unsigned alpha_func:4; /**< SVGA3D_CMP_x */ + unsigned write_color0_to_n_cbufs:4; + unsigned aa_point:1; + int aa_point_coord_index; + float alpha_ref; + } fs; + + /* any shader type */ + int8_t generic_remap_table[MAX_GENERIC_VARYING]; + unsigned num_textures:8; + unsigned num_unnormalized_coords:8; + unsigned clip_plane_enable:PIPE_MAX_CLIP_PLANES; + unsigned sprite_origin_lower_left:1; + unsigned sprite_coord_enable; + struct { + unsigned compare_mode:1; + unsigned compare_func:3; + unsigned unnormalized:1; + unsigned width_height_idx:5; /**< texture unit */ + unsigned texture_target:4; /**< PIPE_TEXTURE_x */ + unsigned texture_msaa:1; /**< A multisample texture? */ + unsigned sprite_texgen:1; + unsigned swizzle_r:3; + unsigned swizzle_g:3; + unsigned swizzle_b:3; + unsigned swizzle_a:3; + unsigned return_type:3; /**< TGSI_RETURN_TYPE_x */ + } tex[PIPE_MAX_SAMPLERS]; + /* Note: svga_compile_keys_equal() depends on the variable-size + * tex[] array being at the end of this structure. + */ +}; + +/* A key for a variant of token string of a shader */ +struct svga_token_key { + struct { + unsigned sprite_coord_enable:24; + unsigned sprite_origin_upper_left:1; + unsigned point_pos_stream_out:1; + unsigned writes_psize:1; + unsigned aa_point:1; + } gs; +}; + +/** + * A single TGSI shader may be compiled into different variants of + * SVGA3D shaders depending on the compile key. Each user shader + * will have a linked list of these variants. + */ +struct svga_shader_variant +{ + const struct svga_shader *shader; + + /** Parameters used to generate this variant */ + struct svga_compile_key key; + + /* Compiled shader tokens: + */ + const unsigned *tokens; + unsigned nr_tokens; + + /** Per-context shader identifier used with SVGA_3D_CMD_SHADER_DEFINE, + * SVGA_3D_CMD_SET_SHADER and SVGA_3D_CMD_SHADER_DESTROY. + */ + unsigned id; + + /** Start of extra constants (number of float[4] constants) */ + unsigned extra_const_start; + + /* GB object buffer containing the bytecode */ + struct svga_winsys_gb_shader *gb_shader; + + boolean uses_flat_interp; /** TRUE if flat interpolation qualifier is + * applied to any of the varyings. + */ + + /** For FS-based polygon stipple */ + unsigned pstipple_sampler_unit; + + /** Next variant */ + struct svga_shader_variant *next; +}; + + +struct svga_shader +{ + const struct tgsi_token *tokens; + struct svga_token_key token_key; /* token key for the token string */ + struct tgsi_shader_info info; + + /* List of shaders with tokens derived from the same token string */ + struct svga_shader *next; + struct svga_shader *parent; /* shader with the original token string */ + + struct svga_stream_output *stream_output; + + /** Head of linked list of compiled variants */ + struct svga_shader_variant *variants; + + unsigned id; /**< for debugging only */ +}; + + +struct svga_fragment_shader +{ + struct svga_shader base; + + struct draw_fragment_shader *draw_shader; + + /** Mask of which generic varying variables are read by this shader */ + uint64_t generic_inputs; + + /** Table mapping original TGSI generic indexes to low integers */ + int8_t generic_remap_table[MAX_GENERIC_VARYING]; +}; + + +struct svga_vertex_shader +{ + struct svga_shader base; + + struct draw_vertex_shader *draw_shader; + + /** Mask of which generic varying variables are written by this shader */ + uint64_t generic_outputs; + + /** Generated geometry shader that goes with this vertex shader */ + struct svga_geometry_shader *gs; +}; + + +struct svga_geometry_shader +{ + struct svga_shader base; + + struct draw_geometry_shader *draw_shader; + + /** Table mapping original TGSI generic indexes to low integers */ + int8_t generic_remap_table[MAX_GENERIC_VARYING]; + uint64_t generic_outputs; + + unsigned aa_point_coord_index; /* generic index for aa point coord */ + + unsigned wide_point:1; /* set if the shader emulates wide point */ +}; + + +static inline boolean +svga_compile_keys_equal(const struct svga_compile_key *a, + const struct svga_compile_key *b) +{ + unsigned key_size = + (const char *) &a->tex[a->num_textures] - (const char *) a; + + return memcmp(a, b, key_size) == 0; +} + + +uint64_t +svga_get_generic_inputs_mask(const struct tgsi_shader_info *info); + +uint64_t +svga_get_generic_outputs_mask(const struct tgsi_shader_info *info); + +void +svga_remap_generics(uint64_t generics_mask, + int8_t remap_table[MAX_GENERIC_VARYING]); + +int +svga_remap_generic_index(int8_t remap_table[MAX_GENERIC_VARYING], + int generic_index); + +void +svga_init_shader_key_common(const struct svga_context *svga, unsigned shader, + struct svga_compile_key *key); + +struct svga_shader_variant * +svga_search_shader_key(const struct svga_shader *shader, + const struct svga_compile_key *key); + +struct svga_shader * +svga_search_shader_token_key(struct svga_shader *shader, + const struct svga_token_key *key); enum pipe_error svga_define_shader(struct svga_context *svga, @@ -36,10 +269,17 @@ svga_define_shader(struct svga_context *svga, struct svga_shader_variant *variant); enum pipe_error +svga_set_shader(struct svga_context *svga, + SVGA3dShaderType type, + struct svga_shader_variant *variant); + +enum pipe_error svga_destroy_shader_variant(struct svga_context *svga, SVGA3dShaderType type, struct svga_shader_variant *variant); +enum pipe_error +svga_rebind_shaders(struct svga_context *svga); /** * Check if a shader's bytecode exceeds the device limits. @@ -62,4 +302,40 @@ svga_shader_too_large(const struct svga_context *svga, } +/** + * Convert from PIPE_SHADER_* to SVGA3D_SHADERTYPE_* + */ +static inline SVGA3dShaderType +svga_shader_type(unsigned shader) +{ + switch (shader) { + case PIPE_SHADER_VERTEX: + return SVGA3D_SHADERTYPE_VS; + case PIPE_SHADER_GEOMETRY: + return SVGA3D_SHADERTYPE_GS; + case PIPE_SHADER_FRAGMENT: + return SVGA3D_SHADERTYPE_PS; + default: + assert(!"Invalid shader type"); + return SVGA3D_SHADERTYPE_VS; + } +} + + +/** Does the current VS have stream output? */ +static inline boolean +svga_have_vs_streamout(const struct svga_context *svga) +{ + return svga->curr.vs != NULL && svga->curr.vs->base.stream_output != NULL; +} + + +/** Does the current GS have stream output? */ +static inline boolean +svga_have_gs_streamout(const struct svga_context *svga) +{ + return svga->curr.gs != NULL && svga->curr.gs->base.stream_output != NULL; +} + + #endif /* SVGA_SHADER_H */ |