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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. */
#include "util/u_math.h"
#include "util/u_pack_color.h"
#include "pipe/p_debug.h"
#include "pipe/internal/p_winsys_screen.h"
#include "r300_context.h"
#include "r300_reg.h"
#include "r300_state_shader.h"
/* r300_state: Functions used to intialize state context by translating
* Gallium state objects into semi-native r300 state objects.
*
* XXX break this file up into pieces if it gets too big! */
/* Pack a float into a dword. */
static uint32_t pack_float_32(float f)
{
union {
float f;
uint32_t u;
} u;
u.f = f;
return u.u;
}
static uint32_t translate_blend_function(int blend_func) {
switch (blend_func) {
case PIPE_BLEND_ADD:
return R300_COMB_FCN_ADD_CLAMP;
case PIPE_BLEND_SUBTRACT:
return R300_COMB_FCN_SUB_CLAMP;
case PIPE_BLEND_REVERSE_SUBTRACT:
return R300_COMB_FCN_RSUB_CLAMP;
case PIPE_BLEND_MIN:
return R300_COMB_FCN_MIN;
case PIPE_BLEND_MAX:
return R300_COMB_FCN_MAX;
default:
debug_printf("r300: Unknown blend function %d\n", blend_func);
break;
}
return 0;
}
/* XXX we can also offer the D3D versions of some of these... */
static uint32_t translate_blend_factor(int blend_fact) {
switch (blend_fact) {
case PIPE_BLENDFACTOR_ONE:
return R300_BLEND_GL_ONE;
case PIPE_BLENDFACTOR_SRC_COLOR:
return R300_BLEND_GL_SRC_COLOR;
case PIPE_BLENDFACTOR_SRC_ALPHA:
return R300_BLEND_GL_SRC_ALPHA;
case PIPE_BLENDFACTOR_DST_ALPHA:
return R300_BLEND_GL_DST_ALPHA;
case PIPE_BLENDFACTOR_DST_COLOR:
return R300_BLEND_GL_DST_COLOR;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
return R300_BLEND_GL_SRC_ALPHA_SATURATE;
case PIPE_BLENDFACTOR_CONST_COLOR:
return R300_BLEND_GL_CONST_COLOR;
case PIPE_BLENDFACTOR_CONST_ALPHA:
return R300_BLEND_GL_CONST_ALPHA;
/* XXX WTF are these?
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA: */
case PIPE_BLENDFACTOR_ZERO:
return R300_BLEND_GL_ZERO;
case PIPE_BLENDFACTOR_INV_SRC_COLOR:
return R300_BLEND_GL_ONE_MINUS_SRC_COLOR;
case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
return R300_BLEND_GL_ONE_MINUS_SRC_ALPHA;
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
return R300_BLEND_GL_ONE_MINUS_DST_ALPHA;
case PIPE_BLENDFACTOR_INV_DST_COLOR:
return R300_BLEND_GL_ONE_MINUS_DST_COLOR;
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
return R300_BLEND_GL_ONE_MINUS_CONST_COLOR;
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
return R300_BLEND_GL_ONE_MINUS_CONST_ALPHA;
/* XXX see above
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: */
default:
debug_printf("r300: Unknown blend factor %d\n", blend_fact);
break;
}
return 0;
}
/* Create a new blend state based on the CSO blend state.
*
* This encompasses alpha blending, logic/raster ops, and blend dithering. */
static void* r300_create_blend_state(struct pipe_context* pipe,
const struct pipe_blend_state* state)
{
struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state);
if (state->blend_enable) {
/* XXX for now, always do separate alpha...
* is it faster to do it with one reg? */
blend->blend_control = R300_ALPHA_BLEND_ENABLE |
R300_SEPARATE_ALPHA_ENABLE |
R300_READ_ENABLE |
translate_blend_function(state->rgb_func) |
(translate_blend_factor(state->rgb_src_factor) <<
R300_SRC_BLEND_SHIFT) |
(translate_blend_factor(state->rgb_dst_factor) <<
R300_DST_BLEND_SHIFT);
blend->alpha_blend_control =
translate_blend_function(state->alpha_func) |
(translate_blend_factor(state->alpha_src_factor) <<
R300_SRC_BLEND_SHIFT) |
(translate_blend_factor(state->alpha_dst_factor) <<
R300_DST_BLEND_SHIFT);
}
/* PIPE_LOGICOP_* don't need to be translated, fortunately. */
/* XXX are logicops still allowed if blending's disabled?
* Does Gallium take care of it for us? */
if (state->logicop_enable) {
blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE |
(state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT;
}
if (state->dither) {
blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
}
return (void*)blend;
}
/* Bind blend state. */
static void r300_bind_blend_state(struct pipe_context* pipe,
void* state)
{
struct r300_context* r300 = r300_context(pipe);
r300->blend_state = (struct r300_blend_state*)state;
r300->dirty_state |= R300_NEW_BLEND;
}
/* Free blend state. */
static void r300_delete_blend_state(struct pipe_context* pipe,
void* state)
{
FREE(state);
}
/* Set blend color.
* Setup both R300 and R500 registers, figure out later which one to write. */
static void r300_set_blend_color(struct pipe_context* pipe,
const struct pipe_blend_color* color)
{
struct r300_context* r300 = r300_context(pipe);
uint32_t r, g, b, a;
ubyte ur, ug, ub, ua;
r = util_iround(color->color[0] * 1023.0f);
g = util_iround(color->color[1] * 1023.0f);
b = util_iround(color->color[2] * 1023.0f);
a = util_iround(color->color[3] * 1023.0f);
ur = float_to_ubyte(color->color[0]);
ug = float_to_ubyte(color->color[1]);
ub = float_to_ubyte(color->color[2]);
ua = float_to_ubyte(color->color[3]);
r300->blend_color_state->blend_color = (a << 24) | (r << 16) | (g << 8) | b;
r300->blend_color_state->blend_color_red_alpha = ur | (ua << 16);
r300->blend_color_state->blend_color_green_blue = ub | (ug << 16);
r300->dirty_state |= R300_NEW_BLEND_COLOR;
}
static void r300_set_clip_state(struct pipe_context* pipe,
const struct pipe_clip_state* state)
{
struct r300_context* r300 = r300_context(pipe);
/* XXX Draw */
draw_flush(r300->draw);
draw_set_clip_state(r300->draw, state);
}
static void
r300_set_constant_buffer(struct pipe_context* pipe,
uint shader, uint index,
const struct pipe_constant_buffer* buffer)
{
struct r300_context* r300 = r300_context(pipe);
/* This entire chunk of code seems ever-so-slightly baked.
* It's as if I've got pipe_buffer* matryoshkas... */
if (buffer && buffer->buffer && buffer->buffer->size) {
void* map = pipe->winsys->buffer_map(pipe->winsys, buffer->buffer,
PIPE_BUFFER_USAGE_CPU_READ);
memcpy(r300->shader_constants[shader].constants,
map, buffer->buffer->size);
pipe->winsys->buffer_unmap(pipe->winsys, map);
r300->shader_constants[shader].user_count =
buffer->buffer->size / (sizeof(float) * 4);
} else {
r300->shader_constants[shader].user_count = 0;
}
r300->dirty_state |= R300_NEW_CONSTANTS;
}
static uint32_t translate_depth_stencil_function(int zs_func) {
switch (zs_func) {
case PIPE_FUNC_NEVER:
return R300_ZS_NEVER;
case PIPE_FUNC_LESS:
return R300_ZS_LESS;
case PIPE_FUNC_EQUAL:
return R300_ZS_EQUAL;
case PIPE_FUNC_LEQUAL:
return R300_ZS_LEQUAL;
case PIPE_FUNC_GREATER:
return R300_ZS_GREATER;
case PIPE_FUNC_NOTEQUAL:
return R300_ZS_NOTEQUAL;
case PIPE_FUNC_GEQUAL:
return R300_ZS_GEQUAL;
case PIPE_FUNC_ALWAYS:
return R300_ZS_ALWAYS;
default:
debug_printf("r300: Unknown depth/stencil function %d\n",
zs_func);
break;
}
return 0;
}
static uint32_t translate_stencil_op(int s_op) {
switch (s_op) {
case PIPE_STENCIL_OP_KEEP:
return R300_ZS_KEEP;
case PIPE_STENCIL_OP_ZERO:
return R300_ZS_ZERO;
case PIPE_STENCIL_OP_REPLACE:
return R300_ZS_REPLACE;
case PIPE_STENCIL_OP_INCR:
return R300_ZS_INCR;
case PIPE_STENCIL_OP_DECR:
return R300_ZS_DECR;
case PIPE_STENCIL_OP_INCR_WRAP:
return R300_ZS_INCR_WRAP;
case PIPE_STENCIL_OP_DECR_WRAP:
return R300_ZS_DECR_WRAP;
case PIPE_STENCIL_OP_INVERT:
return R300_ZS_INVERT;
default:
debug_printf("r300: Unknown stencil op %d", s_op);
break;
}
return 0;
}
static uint32_t translate_alpha_function(int alpha_func) {
switch (alpha_func) {
case PIPE_FUNC_NEVER:
return R300_FG_ALPHA_FUNC_NEVER;
case PIPE_FUNC_LESS:
return R300_FG_ALPHA_FUNC_LESS;
case PIPE_FUNC_EQUAL:
return R300_FG_ALPHA_FUNC_EQUAL;
case PIPE_FUNC_LEQUAL:
return R300_FG_ALPHA_FUNC_LE;
case PIPE_FUNC_GREATER:
return R300_FG_ALPHA_FUNC_GREATER;
case PIPE_FUNC_NOTEQUAL:
return R300_FG_ALPHA_FUNC_NOTEQUAL;
case PIPE_FUNC_GEQUAL:
return R300_FG_ALPHA_FUNC_GE;
case PIPE_FUNC_ALWAYS:
return R300_FG_ALPHA_FUNC_ALWAYS;
default:
debug_printf("r300: Unknown alpha function %d", alpha_func);
break;
}
return 0;
}
/* Create a new depth, stencil, and alpha state based on the CSO dsa state.
*
* This contains the depth buffer, stencil buffer, alpha test, and such.
* On the Radeon, depth and stencil buffer setup are intertwined, which is
* the reason for some of the strange-looking assignments across registers. */
static void*
r300_create_dsa_state(struct pipe_context* pipe,
const struct pipe_depth_stencil_alpha_state* state)
{
struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
/* Depth test setup. */
if (state->depth.enabled) {
dsa->z_buffer_control |= R300_Z_ENABLE;
if (state->depth.writemask) {
dsa->z_buffer_control |= R300_Z_WRITE_ENABLE;
}
dsa->z_stencil_control |=
(translate_depth_stencil_function(state->depth.func) <<
R300_Z_FUNC_SHIFT);
}
/* Stencil buffer setup. */
if (state->stencil[0].enabled) {
dsa->z_buffer_control |= R300_STENCIL_ENABLE;
dsa->z_stencil_control |=
(translate_depth_stencil_function(state->stencil[0].func) <<
R300_S_FRONT_FUNC_SHIFT) |
(translate_stencil_op(state->stencil[0].fail_op) <<
R300_S_FRONT_SFAIL_OP_SHIFT) |
(translate_stencil_op(state->stencil[0].zpass_op) <<
R300_S_FRONT_ZPASS_OP_SHIFT) |
(translate_stencil_op(state->stencil[0].zfail_op) <<
R300_S_FRONT_ZFAIL_OP_SHIFT);
dsa->stencil_ref_mask = (state->stencil[0].ref_value) |
(state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) |
(state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
if (state->stencil[1].enabled) {
dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK;
dsa->z_stencil_control |=
(translate_depth_stencil_function(state->stencil[1].func) <<
R300_S_BACK_FUNC_SHIFT) |
(translate_stencil_op(state->stencil[1].fail_op) <<
R300_S_BACK_SFAIL_OP_SHIFT) |
(translate_stencil_op(state->stencil[1].zpass_op) <<
R300_S_BACK_ZPASS_OP_SHIFT) |
(translate_stencil_op(state->stencil[1].zfail_op) <<
R300_S_BACK_ZFAIL_OP_SHIFT);
dsa->stencil_ref_bf = (state->stencil[1].ref_value) |
(state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) |
(state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT);
}
}
/* Alpha test setup. */
if (state->alpha.enabled) {
dsa->alpha_function = translate_alpha_function(state->alpha.func) |
R300_FG_ALPHA_FUNC_ENABLE;
dsa->alpha_reference = CLAMP(state->alpha.ref_value * 1023.0f,
0, 1023);
} else {
dsa->z_buffer_top = R300_ZTOP_ENABLE;
}
return (void*)dsa;
}
/* Bind DSA state. */
static void r300_bind_dsa_state(struct pipe_context* pipe,
void* state)
{
struct r300_context* r300 = r300_context(pipe);
r300->dsa_state = (struct r300_dsa_state*)state;
r300->dirty_state |= R300_NEW_DSA;
}
/* Free DSA state. */
static void r300_delete_dsa_state(struct pipe_context* pipe,
void* state)
{
FREE(state);
}
static void r300_set_edgeflags(struct pipe_context* pipe,
const unsigned* bitfield)
{
/* XXX you know it's bad when i915 has this blank too */
}
static void
r300_set_framebuffer_state(struct pipe_context* pipe,
const struct pipe_framebuffer_state* state)
{
struct r300_context* r300 = r300_context(pipe);
draw_flush(r300->draw);
r300->framebuffer_state = *state;
r300->dirty_state |= R300_NEW_FRAMEBUFFERS;
}
/* Create fragment shader state. */
static void* r300_create_fs_state(struct pipe_context* pipe,
const struct pipe_shader_state* shader)
{
struct r300_context* r300 = r300_context(pipe);
struct r3xx_fragment_shader* fs = NULL;
if (r300_screen(r300->context.screen)->caps->is_r500) {
fs =
(struct r3xx_fragment_shader*)CALLOC_STRUCT(r500_fragment_shader);
} else {
fs =
(struct r3xx_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
}
/* Copy state directly into shader. */
fs->state = *shader;
return (void*)fs;
}
/* Bind fragment shader state. */
static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
{
struct r300_context* r300 = r300_context(pipe);
struct r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader;
if (fs == NULL) {
r300->fs = NULL;
return;
} else if (!fs->translated) {
if (r300_screen(r300->context.screen)->caps->is_r500) {
r500_translate_fragment_shader(r300, (struct r500_fragment_shader*)fs);
} else {
r300_translate_fragment_shader(r300, (struct r300_fragment_shader*)fs);
}
}
fs->translated = true;
r300->fs = fs;
r300->dirty_state |= R300_NEW_FRAGMENT_SHADER;
}
/* Delete fragment shader state. */
static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
{
FREE(shader);
}
static void r300_set_polygon_stipple(struct pipe_context* pipe,
const struct pipe_poly_stipple* state)
{
/* XXX */
}
static INLINE int pack_float_16_6x(float f) {
return ((int)(f * 6.0) & 0xffff);
}
/* Create a new rasterizer state based on the CSO rasterizer state.
*
* This is a very large chunk of state, and covers most of the graphics
* backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
*
* In a not entirely unironic sidenote, this state has nearly nothing to do
* with the actual block on the Radeon called the rasterizer (RS). */
static void* r300_create_rs_state(struct pipe_context* pipe,
const struct pipe_rasterizer_state* state)
{
struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
/* XXX this is part of HW TCL */
/* XXX endian control */
rs->vap_control_status = R300_VAP_TCL_BYPASS;
rs->point_size = pack_float_16_6x(state->point_size) |
(pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
rs->line_control = pack_float_16_6x(state->line_width) |
R300_GA_LINE_CNTL_END_TYPE_COMP;
/* Radeons don't think in "CW/CCW", they think in "front/back". */
if (state->front_winding == PIPE_WINDING_CW) {
rs->cull_mode = R300_FRONT_FACE_CW;
if (state->offset_cw) {
rs->polygon_offset_enable |= R300_FRONT_ENABLE;
}
if (state->offset_ccw) {
rs->polygon_offset_enable |= R300_BACK_ENABLE;
}
} else {
rs->cull_mode = R300_FRONT_FACE_CCW;
if (state->offset_ccw) {
rs->polygon_offset_enable |= R300_FRONT_ENABLE;
}
if (state->offset_cw) {
rs->polygon_offset_enable |= R300_BACK_ENABLE;
}
}
if (state->front_winding & state->cull_mode) {
rs->cull_mode |= R300_CULL_FRONT;
}
if (~(state->front_winding) & state->cull_mode) {
rs->cull_mode |= R300_CULL_BACK;
}
if (rs->polygon_offset_enable) {
rs->depth_offset_front = rs->depth_offset_back =
pack_float_32(state->offset_units);
rs->depth_scale_front = rs->depth_scale_back =
pack_float_32(state->offset_scale);
}
if (state->line_stipple_enable) {
rs->line_stipple_config =
R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
(pack_float_32((float)state->line_stipple_factor) &
R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
/* XXX this might need to be scaled up */
rs->line_stipple_value = state->line_stipple_pattern;
}
return (void*)rs;
}
/* Bind rasterizer state. */
static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
{
struct r300_context* r300 = r300_context(pipe);
r300->rs_state = (struct r300_rs_state*)state;
r300->dirty_state |= R300_NEW_RASTERIZER;
}
/* Free rasterizer state. */
static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
{
FREE(state);
}
static uint32_t translate_wrap(int wrap) {
switch (wrap) {
case PIPE_TEX_WRAP_REPEAT:
return R300_TX_REPEAT;
case PIPE_TEX_WRAP_CLAMP:
return R300_TX_CLAMP;
case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
return R300_TX_CLAMP_TO_EDGE;
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
return R300_TX_CLAMP_TO_BORDER;
case PIPE_TEX_WRAP_MIRROR_REPEAT:
return R300_TX_REPEAT | R300_TX_MIRRORED;
case PIPE_TEX_WRAP_MIRROR_CLAMP:
return R300_TX_CLAMP | R300_TX_MIRRORED;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
default:
debug_printf("r300: Unknown texture wrap %d", wrap);
return 0;
}
}
static uint32_t translate_tex_filters(int min, int mag, int mip) {
uint32_t retval = 0;
switch (min) {
case PIPE_TEX_FILTER_NEAREST:
retval |= R300_TX_MIN_FILTER_NEAREST;
case PIPE_TEX_FILTER_LINEAR:
retval |= R300_TX_MIN_FILTER_LINEAR;
case PIPE_TEX_FILTER_ANISO:
retval |= R300_TX_MIN_FILTER_ANISO;
default:
debug_printf("r300: Unknown texture filter %d", min);
break;
}
switch (mag) {
case PIPE_TEX_FILTER_NEAREST:
retval |= R300_TX_MAG_FILTER_NEAREST;
case PIPE_TEX_FILTER_LINEAR:
retval |= R300_TX_MAG_FILTER_LINEAR;
case PIPE_TEX_FILTER_ANISO:
retval |= R300_TX_MAG_FILTER_ANISO;
default:
debug_printf("r300: Unknown texture filter %d", mag);
break;
}
switch (mip) {
case PIPE_TEX_MIPFILTER_NONE:
retval |= R300_TX_MIN_FILTER_MIP_NONE;
case PIPE_TEX_MIPFILTER_NEAREST:
retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
case PIPE_TEX_MIPFILTER_LINEAR:
retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
default:
debug_printf("r300: Unknown texture filter %d", mip);
break;
}
return retval;
}
static uint32_t anisotropy(float max_aniso) {
if (max_aniso >= 16.0f) {
return R300_TX_MAX_ANISO_16_TO_1;
} else if (max_aniso >= 8.0f) {
return R300_TX_MAX_ANISO_8_TO_1;
} else if (max_aniso >= 4.0f) {
return R300_TX_MAX_ANISO_4_TO_1;
} else if (max_aniso >= 2.0f) {
return R300_TX_MAX_ANISO_2_TO_1;
} else {
return R300_TX_MAX_ANISO_1_TO_1;
}
}
static void*
r300_create_sampler_state(struct pipe_context* pipe,
const struct pipe_sampler_state* state)
{
struct r300_context* r300 = r300_context(pipe);
struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
int lod_bias;
sampler->filter0 |=
(translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) |
(translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) |
(translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT);
sampler->filter0 |= translate_tex_filters(state->min_img_filter,
state->mag_img_filter,
state->min_mip_filter);
lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1);
sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT;
sampler->filter1 |= anisotropy(state->max_anisotropy);
util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM,
&sampler->border_color);
/* R500-specific fixups and optimizations */
if (r300_screen(r300->context.screen)->caps->is_r500) {
sampler->filter1 |= R500_BORDER_FIX;
}
return (void*)sampler;
}
static void r300_bind_sampler_states(struct pipe_context* pipe,
unsigned count,
void** states)
{
struct r300_context* r300 = r300_context(pipe);
int i;
if (count > 8) {
return;
}
for (i = 0; i < count; i++) {
if (r300->sampler_states[i] != states[i]) {
r300->sampler_states[i] = (struct r300_sampler_state*)states[i];
r300->dirty_state |= (R300_NEW_SAMPLER << i);
}
}
r300->sampler_count = count;
}
static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
{
FREE(state);
}
static void r300_set_sampler_textures(struct pipe_context* pipe,
unsigned count,
struct pipe_texture** texture)
{
struct r300_context* r300 = r300_context(pipe);
int i;
/* XXX magic num */
if (count > 8) {
return;
}
for (i = 0; i < count; i++) {
if (r300->textures[i] != (struct r300_texture*)texture[i]) {
pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
texture[i]);
r300->dirty_state |= (R300_NEW_TEXTURE << i);
}
}
for (i = count; i < 8; i++) {
if (r300->textures[i]) {
pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
NULL);
r300->dirty_state |= (R300_NEW_TEXTURE << i);
}
}
r300->texture_count = count;
}
static void r300_set_scissor_state(struct pipe_context* pipe,
const struct pipe_scissor_state* state)
{
struct r300_context* r300 = r300_context(pipe);
draw_flush(r300->draw);
r300->scissor_state->scissor_top_left =
(state->minx << R300_SCISSORS_X_SHIFT) |
(state->miny << R300_SCISSORS_Y_SHIFT);
r300->scissor_state->scissor_bottom_right =
(state->maxx << R300_SCISSORS_X_SHIFT) |
(state->maxy << R300_SCISSORS_Y_SHIFT);
r300->dirty_state |= R300_NEW_SCISSOR;
}
static void r300_set_viewport_state(struct pipe_context* pipe,
const struct pipe_viewport_state* state)
{
struct r300_context* r300 = r300_context(pipe);
/* XXX handing this off to Draw for now */
draw_set_viewport_state(r300->draw, state);
}
static void r300_set_vertex_buffers(struct pipe_context* pipe,
unsigned count,
const struct pipe_vertex_buffer* buffers)
{
struct r300_context* r300 = r300_context(pipe);
memcpy(r300->vertex_buffers, buffers,
sizeof(struct pipe_vertex_buffer) * count);
r300->vertex_buffer_count = count;
draw_flush(r300->draw);
draw_set_vertex_buffers(r300->draw, count, buffers);
}
static void r300_set_vertex_elements(struct pipe_context* pipe,
unsigned count,
const struct pipe_vertex_element* elements)
{
struct r300_context* r300 = r300_context(pipe);
/* XXX Draw */
draw_flush(r300->draw);
draw_set_vertex_elements(r300->draw, count, elements);
}
static void* r300_create_vs_state(struct pipe_context* pipe,
const struct pipe_shader_state* state)
{
struct r300_context* context = r300_context(pipe);
/* XXX handing this off to Draw for now */
return draw_create_vertex_shader(context->draw, state);
}
static void r300_bind_vs_state(struct pipe_context* pipe, void* state) {
struct r300_context* context = r300_context(pipe);
/* XXX handing this off to Draw for now */
draw_bind_vertex_shader(context->draw, (struct draw_vertex_shader*)state);
}
static void r300_delete_vs_state(struct pipe_context* pipe, void* state)
{
struct r300_context* context = r300_context(pipe);
/* XXX handing this off to Draw for now */
draw_delete_vertex_shader(context->draw, (struct draw_vertex_shader*)state);
}
void r300_init_state_functions(struct r300_context* r300)
{
r300->context.create_blend_state = r300_create_blend_state;
r300->context.bind_blend_state = r300_bind_blend_state;
r300->context.delete_blend_state = r300_delete_blend_state;
r300->context.set_blend_color = r300_set_blend_color;
r300->context.set_clip_state = r300_set_clip_state;
r300->context.set_constant_buffer = r300_set_constant_buffer;
r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state;
r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state;
r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state;
r300->context.set_edgeflags = r300_set_edgeflags;
r300->context.set_framebuffer_state = r300_set_framebuffer_state;
r300->context.create_fs_state = r300_create_fs_state;
r300->context.bind_fs_state = r300_bind_fs_state;
r300->context.delete_fs_state = r300_delete_fs_state;
r300->context.set_polygon_stipple = r300_set_polygon_stipple;
r300->context.create_rasterizer_state = r300_create_rs_state;
r300->context.bind_rasterizer_state = r300_bind_rs_state;
r300->context.delete_rasterizer_state = r300_delete_rs_state;
r300->context.create_sampler_state = r300_create_sampler_state;
r300->context.bind_sampler_states = r300_bind_sampler_states;
r300->context.delete_sampler_state = r300_delete_sampler_state;
r300->context.set_sampler_textures = r300_set_sampler_textures;
r300->context.set_scissor_state = r300_set_scissor_state;
r300->context.set_viewport_state = r300_set_viewport_state;
r300->context.set_vertex_buffers = r300_set_vertex_buffers;
r300->context.set_vertex_elements = r300_set_vertex_elements;
r300->context.create_vs_state = r300_create_vs_state;
r300->context.bind_vs_state = r300_bind_vs_state;
r300->context.delete_vs_state = r300_delete_vs_state;
}
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