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/**************************************************************************
*
* Copyright 2007-2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* The setup code is concerned with point/line/triangle setup and
* putting commands/data into the bins.
*/
#ifndef LP_SETUP_CONTEXT_H
#define LP_SETUP_CONTEXT_H
#include "lp_setup.h"
#include "lp_rast.h"
#include "lp_tile_soa.h" /* for TILE_SIZE */
#include "lp_scene.h"
#include "draw/draw_vbuf.h"
#include "util/u_rect.h"
#define LP_SETUP_NEW_FS 0x01
#define LP_SETUP_NEW_CONSTANTS 0x02
#define LP_SETUP_NEW_BLEND_COLOR 0x04
#define LP_SETUP_NEW_SCISSOR 0x08
struct lp_scene_queue;
/** Max number of scenes */
#define MAX_SCENES 2
/**
* Point/line/triangle setup context.
* Note: "stored" below indicates data which is stored in the bins,
* not arbitrary malloc'd memory.
*
*
* Subclass of vbuf_render, plugged directly into the draw module as
* the rendering backend.
*/
struct lp_setup_context
{
struct vbuf_render base;
struct vertex_info *vertex_info;
uint prim;
uint vertex_size;
uint nr_vertices;
uint sprite;
uint vertex_buffer_size;
void *vertex_buffer;
/* Final pipeline stage for draw module. Draw module should
* create/install this itself now.
*/
struct draw_stage *vbuf;
unsigned num_threads;
struct lp_scene *scenes[MAX_SCENES]; /**< all the scenes */
struct lp_scene *scene; /**< current scene being built */
struct lp_scene_queue *empty_scenes; /**< queue of empty scenes */
boolean flatshade_first;
boolean ccw_is_frontface;
boolean scissor_test;
boolean point_size_per_vertex;
unsigned cullmode;
float pixel_offset;
float line_width;
float point_size;
float psize;
struct pipe_framebuffer_state fb;
struct u_rect framebuffer;
struct u_rect scissor;
struct u_rect draw_region; /* intersection of fb & scissor */
struct {
unsigned flags;
union lp_rast_cmd_arg color; /**< lp_rast_clear_color() cmd */
struct lp_rast_clearzs clearzs; /**< lp_rast_clear_zstencil() cmd */
} clear;
enum setup_state {
SETUP_FLUSHED, /**< scene is null */
SETUP_EMPTY, /**< scene exists but has only state changes */
SETUP_CLEARED, /**< scene exists but has only clears */
SETUP_ACTIVE /**< scene exists and has at least one draw/query */
} state;
struct {
struct lp_shader_input input[PIPE_MAX_ATTRIBS];
unsigned nr_inputs;
const struct lp_rast_state *stored; /**< what's in the scene */
struct lp_rast_state current; /**< currently set state */
struct pipe_resource *current_tex[PIPE_MAX_SAMPLERS];
} fs;
/** fragment shader constants */
struct {
struct pipe_resource *current;
unsigned stored_size;
const void *stored_data;
} constants;
struct {
struct pipe_blend_color current;
uint8_t *stored;
} blend_color;
unsigned dirty; /**< bitmask of LP_SETUP_NEW_x bits */
void (*point)( struct lp_setup_context *,
const float (*v0)[4]);
void (*line)( struct lp_setup_context *,
const float (*v0)[4],
const float (*v1)[4]);
void (*triangle)( struct lp_setup_context *,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4]);
};
void lp_setup_choose_triangle( struct lp_setup_context *setup );
void lp_setup_choose_line( struct lp_setup_context *setup );
void lp_setup_choose_point( struct lp_setup_context *setup );
struct lp_scene *lp_setup_get_current_scene(struct lp_setup_context *setup);
void lp_setup_init_vbuf(struct lp_setup_context *setup);
void lp_setup_update_state( struct lp_setup_context *setup );
void lp_setup_destroy( struct lp_setup_context *setup );
void
lp_setup_print_triangle(struct lp_setup_context *setup,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4]);
void
lp_setup_print_vertex(struct lp_setup_context *setup,
const char *name,
const float (*v)[4]);
struct lp_rast_triangle *
lp_setup_alloc_triangle(struct lp_scene *scene,
unsigned nr_inputs,
unsigned nr_planes,
unsigned *tri_size);
void
lp_setup_bin_triangle( struct lp_setup_context *setup,
struct lp_rast_triangle *tri,
const struct u_rect *bbox,
int nr_planes );
#endif
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