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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. */
/* r300_emit: Functions for emitting state. */
#include "r300_emit.h"
void r300_emit_blend_state(struct r300_context* r300,
struct r300_blend_state* blend)
{
CS_LOCALS(r300);
BEGIN_CS(7);
OUT_CS_REG_SEQ(R300_RB3D_CBLEND, 2);
OUT_CS(blend->blend_control);
OUT_CS(blend->alpha_blend_control);
OUT_CS_REG(R300_RB3D_ROPCNTL, blend->rop);
OUT_CS_REG(R300_RB3D_DITHER_CTL, blend->dither);
END_CS;
}
void r300_emit_blend_color_state(struct r300_context* r300,
struct r300_blend_color_state* bc)
{
struct r300_screen* r300screen =
(struct r300_screen*)r300->context.screen;
CS_LOCALS(r300);
if (r300screen->caps->is_r500) {
BEGIN_CS(3);
OUT_CS_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2);
OUT_CS(bc->blend_color_red_alpha);
OUT_CS(bc->blend_color_green_blue);
END_CS;
} else {
BEGIN_CS(2);
OUT_CS_REG(R300_RB3D_BLEND_COLOR, bc->blend_color);
END_CS;
}
}
void r300_emit_dsa_state(struct r300_context* r300,
struct r300_dsa_state* dsa)
{
struct r300_screen* r300screen =
(struct r300_screen*)r300->context.screen;
CS_LOCALS(r300);
BEGIN_CS(r300screen->caps->is_r500 ? 8 : 8);
OUT_CS_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function);
/* XXX figure out the r300 counterpart for this */
if (r300screen->caps->is_r500) {
/* OUT_CS_REG(R500_FG_ALPHA_VALUE, dsa->alpha_reference); */
}
OUT_CS_REG_SEQ(R300_ZB_CNTL, 3);
OUT_CS(dsa->z_buffer_control);
OUT_CS(dsa->z_stencil_control);
OUT_CS(dsa->stencil_ref_mask);
OUT_CS_REG(R300_ZB_ZTOP, dsa->z_buffer_top);
if (r300screen->caps->is_r500) {
/* OUT_CS_REG(R500_ZB_STENCILREFMASK_BF, dsa->stencil_ref_bf); */
}
END_CS;
}
/* XXX add pitch, stride, z/stencil buf */
void r300_emit_fb_state(struct r300_context* r300,
struct pipe_framebuffer_state* fb)
{
CS_LOCALS(r300);
struct r300_texture* tex;
int i;
BEGIN_CS((3 * fb->nr_cbufs) + 6);
for (i = 0; i < fb->nr_cbufs; i++) {
tex = (struct r300_texture*)fb->cbufs[i]->texture;
OUT_CS_REG_SEQ(R300_RB3D_COLOROFFSET0 + (4 * i), 1);
OUT_CS_RELOC(tex->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
}
R300_PACIFY;
END_CS;
}
void r300_emit_rs_state(struct r300_context* r300, struct r300_rs_state* rs)
{
struct r300_screen* r300screen =
(struct r300_screen*)r300->context.screen;
CS_LOCALS(r300);
BEGIN_CS(14);
OUT_CS_REG(R300_VAP_CNTL_STATUS, rs->vap_control_status);
OUT_CS_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 6);
OUT_CS(rs->depth_scale_front);
OUT_CS(rs->depth_offset_front);
OUT_CS(rs->depth_scale_back);
OUT_CS(rs->depth_offset_back);
OUT_CS(rs->polygon_offset_enable);
OUT_CS(rs->cull_mode);
OUT_CS_REG(R300_GA_LINE_STIPPLE_CONFIG, rs->line_stipple_config);
OUT_CS_REG(R300_GA_LINE_STIPPLE_VALUE, rs->line_stipple_value);
END_CS;
}
static void r300_emit_dirty_state(struct r300_context* r300)
{
struct r300_screen* r300screen =
(struct r300_screen*)r300->context.screen;
CS_LOCALS(r300);
if (!(r300->dirty_state) && !(r300->dirty_hw)) {
return;
}
/* XXX check size */
if (r300->dirty_state & R300_NEW_BLEND) {
r300_emit_blend_state(r300, r300->blend_state);
}
if (r300->dirty_state & R300_NEW_BLEND_COLOR) {
r300_emit_blend_color_state(r300, r300->blend_color_state);
}
if (r300->dirty_state & R300_NEW_DSA) {
r300_emit_dsa_state(r300, r300->dsa_state);
}
if (r300->dirty_state & R300_NEW_RASTERIZER) {
r300_emit_rs_state(r300, r300->rs_state);
}
if (r300->dirty_state & R300_NEW_SCISSOR) {
struct r300_scissor_state* scissor = r300->scissor_state;
/* XXX next two are contiguous regs */
OUT_CS_REG(R300_SC_SCISSORS_TL, scissor->scissor_top_left);
OUT_CS_REG(R300_SC_SCISSORS_BR, scissor->scissor_bottom_right);
}
r300->dirty_state = 0;
}
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