/*
* Copyright 2009 Joakim Sindholt <opensource@zhasha.com>
* 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_STATE_INLINES_H
#define R300_STATE_INLINES_H
#include "draw/draw_vertex.h"
#include "pipe/p_format.h"
#include "util/u_format.h"
#include "r300_reg.h"
#include <stdio.h>
/* Some maths. These should probably find their way to u_math, if needed. */
static INLINE int pack_float_16_6x(float f) {
return ((int)(f * 6.0) & 0xffff);
}
/* Blend state. */
static INLINE uint32_t r300_translate_blend_function(int blend_func,
boolean clamp)
{
switch (blend_func) {
case PIPE_BLEND_ADD:
return clamp ? R300_COMB_FCN_ADD_CLAMP : R300_COMB_FCN_ADD_NOCLAMP;
case PIPE_BLEND_SUBTRACT:
return clamp ? R300_COMB_FCN_SUB_CLAMP : R300_COMB_FCN_SUB_NOCLAMP;
case PIPE_BLEND_REVERSE_SUBTRACT:
return clamp ? R300_COMB_FCN_RSUB_CLAMP : R300_COMB_FCN_RSUB_NOCLAMP;
case PIPE_BLEND_MIN:
return R300_COMB_FCN_MIN;
case PIPE_BLEND_MAX:
return R300_COMB_FCN_MAX;
default:
fprintf(stderr, "r300: Unknown blend function %d\n", blend_func);
assert(0);
break;
}
return 0;
}
/* XXX we can also offer the D3D versions of some of these... */
static INLINE uint32_t r300_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;
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;
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA:
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
fprintf(stderr, "r300: Implementation error: "
"Bad blend factor %d not supported!\n", blend_fact);
assert(0);
break;
default:
fprintf(stderr, "r300: Unknown blend factor %d\n", blend_fact);
assert(0);
break;
}
return 0;
}
/* DSA state. */
static INLINE uint32_t r300_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:
fprintf(stderr, "r300: Unknown depth/stencil function %d\n",
zs_func);
assert(0);
break;
}
return 0;
}
static INLINE uint32_t r300_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:
fprintf(stderr, "r300: Unknown stencil op %d", s_op);
assert(0);
break;
}
return 0;
}
static INLINE uint32_t r300_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:
fprintf(stderr, "r300: Unknown alpha function %d", alpha_func);
assert(0);
break;
}
return 0;
}
static INLINE uint32_t
r300_translate_polygon_mode_front(unsigned mode) {
switch (mode)
{
case PIPE_POLYGON_MODE_FILL:
return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
case PIPE_POLYGON_MODE_LINE:
return R300_GA_POLY_MODE_FRONT_PTYPE_LINE;
case PIPE_POLYGON_MODE_POINT:
return R300_GA_POLY_MODE_FRONT_PTYPE_POINT;
default:
fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
__FUNCTION__);
return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
}
}
static INLINE uint32_t
r300_translate_polygon_mode_back(unsigned mode) {
switch (mode)
{
case PIPE_POLYGON_MODE_FILL:
return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
case PIPE_POLYGON_MODE_LINE:
return R300_GA_POLY_MODE_BACK_PTYPE_LINE;
case PIPE_POLYGON_MODE_POINT:
return R300_GA_POLY_MODE_BACK_PTYPE_POINT;
default:
fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
__FUNCTION__);
return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
}
}
/* Texture sampler state. */
static INLINE uint32_t r300_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_BORDER | R300_TX_MIRRORED;
default:
fprintf(stderr, "r300: Unknown texture wrap %d", wrap);
assert(0);
return 0;
}
}
static INLINE uint32_t r300_translate_tex_filters(int min, int mag, int mip,
boolean is_anisotropic)
{
uint32_t retval = 0;
switch (min) {
case PIPE_TEX_FILTER_NEAREST:
retval |= R300_TX_MIN_FILTER_NEAREST;
break;
case PIPE_TEX_FILTER_LINEAR:
retval |= is_anisotropic ? R300_TX_MIN_FILTER_ANISO :
R300_TX_MIN_FILTER_LINEAR;
break;
default:
fprintf(stderr, "r300: Unknown texture filter %d\n", min);
assert(0);
}
switch (mag) {
case PIPE_TEX_FILTER_NEAREST:
retval |= R300_TX_MAG_FILTER_NEAREST;
break;
case PIPE_TEX_FILTER_LINEAR:
retval |= is_anisotropic ? R300_TX_MAG_FILTER_ANISO :
R300_TX_MAG_FILTER_LINEAR;
break;
default:
fprintf(stderr, "r300: Unknown texture filter %d\n", mag);
assert(0);
}
switch (mip) {
case PIPE_TEX_MIPFILTER_NONE:
retval |= R300_TX_MIN_FILTER_MIP_NONE;
break;
case PIPE_TEX_MIPFILTER_NEAREST:
retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
break;
case PIPE_TEX_MIPFILTER_LINEAR:
retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
break;
default:
fprintf(stderr, "r300: Unknown texture filter %d\n", mip);
assert(0);
}
return retval;
}
static INLINE uint32_t r300_anisotropy(unsigned max_aniso)
{
if (max_aniso >= 16) {
return R300_TX_MAX_ANISO_16_TO_1;
} else if (max_aniso >= 8) {
return R300_TX_MAX_ANISO_8_TO_1;
} else if (max_aniso >= 4) {
return R300_TX_MAX_ANISO_4_TO_1;
} else if (max_aniso >= 2) {
return R300_TX_MAX_ANISO_2_TO_1;
} else {
return R300_TX_MAX_ANISO_1_TO_1;
}
}
static INLINE uint32_t r500_anisotropy(unsigned max_aniso)
{
if (!max_aniso) {
return 0;
}
max_aniso -= 1;
// Map the range [0, 15] to [0, 63].
return R500_TX_MAX_ANISO(MIN2((unsigned)(max_aniso*4.2001), 63)) |
R500_TX_ANISO_HIGH_QUALITY;
}
/* Translate pipe_formats into PSC vertex types. */
static INLINE uint16_t
r300_translate_vertex_data_type(enum pipe_format format) {
uint32_t result = 0;
const struct util_format_description *desc;
unsigned i;
desc = util_format_description(format);
if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
return R300_INVALID_FORMAT;
}
/* Find the first non-VOID channel. */
for (i = 0; i < 4; i++) {
if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
break;
}
}
switch (desc->channel[i].type) {
/* Half-floats, floats, doubles */
case UTIL_FORMAT_TYPE_FLOAT:
switch (desc->channel[i].size) {
case 16:
/* Supported only on RV350 and later. */
if (desc->nr_channels > 2) {
result = R300_DATA_TYPE_FLT16_4;
} else {
result = R300_DATA_TYPE_FLT16_2;
}
break;
case 32:
result = R300_DATA_TYPE_FLOAT_1 + (desc->nr_channels - 1);
break;
default:
return R300_INVALID_FORMAT;
}
break;
/* Unsigned ints */
case UTIL_FORMAT_TYPE_UNSIGNED:
/* Signed ints */
case UTIL_FORMAT_TYPE_SIGNED:
switch (desc->channel[i].size) {
case 8:
result = R300_DATA_TYPE_BYTE;
break;
case 16:
if (desc->nr_channels > 2) {
result = R300_DATA_TYPE_SHORT_4;
} else {
result = R300_DATA_TYPE_SHORT_2;
}
break;
default:
return R300_INVALID_FORMAT;
}
break;
default:
return R300_INVALID_FORMAT;
}
if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
result |= R300_SIGNED;
}
if (desc->channel[i].normalized) {
result |= R300_NORMALIZE;
}
return result;
}
static INLINE uint16_t
r300_translate_vertex_data_swizzle(enum pipe_format format) {
const struct util_format_description *desc = util_format_description(format);
unsigned i, swizzle = 0;
assert(format);
if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
fprintf(stderr, "r300: Bad format %s in %s:%d\n",
util_format_short_name(format), __FUNCTION__, __LINE__);
return 0;
}
for (i = 0; i < desc->nr_channels; i++) {
swizzle |=
MIN2(desc->swizzle[i], R300_SWIZZLE_SELECT_FP_ONE) << (3*i);
}
/* Set (0,0,0,1) in unused components. */
for (; i < 3; i++) {
swizzle |= R300_SWIZZLE_SELECT_FP_ZERO << (3*i);
}
for (; i < 4; i++) {
swizzle |= R300_SWIZZLE_SELECT_FP_ONE << (3*i);
}
return swizzle | (0xf << R300_WRITE_ENA_SHIFT);
}
#endif /* R300_STATE_INLINES_H */