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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
#ifndef SP_STATE_H
#define SP_STATE_H
#include "mtypes.h"
#include "vf/vf.h"
#define WINDING_NONE 0
#define WINDING_CW 1
#define WINDING_CCW 2
#define WINDING_BOTH (WINDING_CW | WINDING_CCW)
#define FILL_POINT 1
#define FILL_LINE 2
#define FILL_TRI 3
struct softpipe_setup_state {
GLuint flatshade:1;
GLuint light_twoside:1;
GLuint front_winding:2;
GLuint cull_mode:2;
GLuint fill_cw:2;
GLuint fill_ccw:2;
GLuint offset_cw:1;
GLuint offset_ccw:1;
GLuint scissor:1;
GLuint poly_stipple:1;
GLuint pad:18;
GLfloat offset_units;
GLfloat offset_scale;
};
struct softpipe_poly_stipple {
GLuint stipple[32];
};
struct softpipe_viewport {
GLfloat scale[4];
GLfloat translate[4];
};
struct softpipe_scissor_rect {
GLshort minx;
GLshort miny;
GLshort maxx;
GLshort maxy;
};
#define SP_MAX_CLIP_PLANES 6
struct softpipe_clip_state {
GLfloat ucp[SP_MAX_CLIP_PLANES][4];
GLuint nr;
};
struct softpipe_fs_state {
struct gl_fragment_program *fp;
};
#define SP_MAX_CONSTANT 32
struct softpipe_constant_buffer {
GLfloat constant[SP_MAX_CONSTANT][4];
GLuint nr_constants;
};
struct softpipe_blend_state {
GLuint blend_enable:1;
GLuint rgb_func:3;
GLuint rgb_src_factor:5;
GLuint rgb_dst_factor:5;
GLuint alpha_func:3;
GLuint alpha_src_factor:5;
GLuint alpha_dst_factor:5;
GLuint logicop_enable:1;
GLuint logicop_func:4;
};
struct softpipe_blend_color {
GLfloat color[4];
};
struct softpipe_stencil_state {
GLuint front_enabled:1;
GLuint front_func:3; /**< SP_STENCIL_FUNC_x */
GLuint front_fail_op:3; /**< SP_STENCIL_OP_x */
GLuint front_zpass_op:3; /**< SP_STENCIL_OP_x */
GLuint front_zfail_op:3; /**< SP_STENCIL_OP_x */
GLuint back_enabled:1;
GLuint back_func:3;
GLuint back_fail_op:3;
GLuint back_zpass_op:3;
GLuint back_zfail_op:3;
GLint ref_value[2]; /**< [0] = front, [1] = back */
GLuint value_mask[2];
GLuint write_mask[2];
GLuint clear_value;
};
/* This will change for hardware softpipes...
*/
struct softpipe_surface {
GLubyte *ptr;
GLint stride;
GLuint cpp;
GLuint format;
};
#endif
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