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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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 R300_CONTEXT_H
#define R300_CONTEXT_H
#include "draw/draw_context.h"
#include "pipe/p_context.h"
#include "util/u_memory.h"
#include "r300_screen.h"
struct r300_blend_state {
uint32_t blend_control; /* R300_RB3D_BLENDCNTL: 0x4e04 */
uint32_t alpha_blend_control; /* R300_RB3D_ABLENDCNTL: 0x4e08 */
uint32_t rop; /* R300_RB3D_ROPCNTL: 0x4e18 */
uint32_t dither; /* R300_RB3D_DITHER_CTL: 0x4e50 */
};
struct r300_blend_color_state {
/* RV515 and earlier */
uint32_t blend_color; /* R300_RB3D_BLEND_COLOR: 0x4e10 */
/* R520 and newer */
uint32_t blend_color_red_alpha; /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
};
struct r300_dsa_state {
uint32_t alpha_function; /* R300_FG_ALPHA_FUNC: 0x4bd4 */
uint32_t alpha_reference; /* R500_FG_ALPHA_VALUE: 0x4be0 */
uint32_t z_buffer_control; /* R300_ZB_CNTL: 0x4f00 */
uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
uint32_t stencil_ref_mask; /* R300_ZB_STENCILREFMASK: 0x4f08 */
uint32_t z_buffer_top; /* R300_ZB_ZTOP: 0x4f14 */
uint32_t stencil_ref_bf; /* R300_ZB_STENCILREFMASK_BF: 0x4fd4 */
};
struct r300_rs_state {
uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
uint32_t cull_mode; /* R300_SU_CULL_MODE: 0x42b8 */
uint32_t depth_scale_front; /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
uint32_t depth_offset_front; /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
uint32_t depth_scale_back; /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
uint32_t depth_offset_back; /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
};
struct r300_scissor_state {
uint32_t scissor_top_left; /* R300_SC_SCISSORS_TL: 0x43e0 */
uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
};
#define R300_NEW_BLEND 0x01
#define R300_NEW_BLEND_COLOR 0x02
#define R300_NEW_DSA 0x04
#define R300_NEW_RS 0x08
#define R300_NEW_SCISSOR 0x10
struct r300_context {
/* Parent class */
struct pipe_context context;
/* The interface to the windowing system, etc. */
struct r300_winsys* winsys;
/* Draw module. Used mostly for SW TCL. */
struct draw_context* draw;
/* Various CSO state objects. */
/* Blend state. */
struct r300_blend_state* blend_state;
/* Blend color state. */
struct r300_blend_color_state* blend_color_state;
/* Depth, stencil, and alpha state. */
struct r300_dsa_state* dsa_state;
/* Rasterizer state. */
struct r300_rs_state* rs_state;
/* Scissor state. */
struct r300_scissor_state* scissor_state;
/* Bitmask of dirty state objects. */
uint32_t dirty_state;
};
/* Convenience cast wrapper. */
static struct r300_context* r300_context(struct pipe_context* context) {
return (struct r300_context*)context;
}
/* Context initialization. */
void r300_init_state_functions(struct r300_context* r300);
void r300_init_surface_functions(struct r300_context* r300);
struct pipe_context* r300_create_context(struct pipe_screen* screen,
struct pipe_winsys* winsys,
struct r300_winsys* r300_winsys);
#endif /* R300_CONTEXT_H */
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