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/**************************************************************************
*
* Copyright 2003 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.
*
**************************************************************************/
#include "i915_reg.h"
#include "i915_context.h"
#include "i915_winsys.h"
#include "i915_batch.h"
#include "i915_reg.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
static unsigned translate_format( enum pipe_format format )
{
switch (format) {
case PIPE_FORMAT_A8R8G8B8_UNORM:
return COLOR_BUF_ARGB8888;
case PIPE_FORMAT_R5G6B5_UNORM:
return COLOR_BUF_RGB565;
default:
assert(0);
return 0;
}
}
static unsigned translate_depth_format( enum pipe_format zformat )
{
switch (zformat) {
case PIPE_FORMAT_S8Z24_UNORM:
return DEPTH_FRMT_24_FIXED_8_OTHER;
case PIPE_FORMAT_Z16_UNORM:
return DEPTH_FRMT_16_FIXED;
default:
assert(0);
return 0;
}
}
/**
* Examine framebuffer state to determine width, height.
*/
static boolean
framebuffer_size(const struct pipe_framebuffer_state *fb,
uint *width, uint *height)
{
if (fb->cbufs[0]) {
*width = fb->cbufs[0]->width;
*height = fb->cbufs[0]->height;
return TRUE;
}
else if (fb->zbuf) {
*width = fb->zbuf->width;
*height = fb->zbuf->height;
return TRUE;
}
else if (fb->sbuf) {
*width = fb->sbuf->width;
*height = fb->sbuf->height;
return TRUE;
}
else {
*width = *height = 0;
return FALSE;
}
}
/* Push the state into the sarea and/or texture memory.
*/
void
i915_emit_hardware_state(struct i915_context *i915 )
{
/* XXX: there must be an easier way */
const unsigned dwords = ( 14 +
7 +
I915_MAX_DYNAMIC +
8 +
2 + I915_TEX_UNITS*3 +
2 + I915_TEX_UNITS*3 +
2 + I915_MAX_CONSTANT*4 +
i915->current.program_len +
6
) * 3/2; /* plus 50% margin */
const unsigned relocs = ( I915_TEX_UNITS +
3
) * 3/2; /* plus 50% margin */
#if 0
fprintf (stderr, "i915_emit_hardware_state: %d dwords, %d relocs\n", dwords, relocs);
#endif
if(!BEGIN_BATCH(dwords, relocs)) {
FLUSH_BATCH();
assert(BEGIN_BATCH(dwords, relocs));
}
/* 14 dwords, 0 relocs */
if (i915->hardware_dirty & I915_HW_INVARIENT)
{
OUT_BATCH(_3DSTATE_AA_CMD |
AA_LINE_ECAAR_WIDTH_ENABLE |
AA_LINE_ECAAR_WIDTH_1_0 |
AA_LINE_REGION_WIDTH_ENABLE | AA_LINE_REGION_WIDTH_1_0);
OUT_BATCH(_3DSTATE_DFLT_DIFFUSE_CMD);
OUT_BATCH(0);
OUT_BATCH(_3DSTATE_DFLT_SPEC_CMD);
OUT_BATCH(0);
OUT_BATCH(_3DSTATE_DFLT_Z_CMD);
OUT_BATCH(0);
OUT_BATCH(_3DSTATE_COORD_SET_BINDINGS |
CSB_TCB(0, 0) |
CSB_TCB(1, 1) |
CSB_TCB(2, 2) |
CSB_TCB(3, 3) |
CSB_TCB(4, 4) |
CSB_TCB(5, 5) |
CSB_TCB(6, 6) |
CSB_TCB(7, 7));
OUT_BATCH(_3DSTATE_RASTER_RULES_CMD |
ENABLE_POINT_RASTER_RULE |
OGL_POINT_RASTER_RULE |
ENABLE_LINE_STRIP_PROVOKE_VRTX |
ENABLE_TRI_FAN_PROVOKE_VRTX |
LINE_STRIP_PROVOKE_VRTX(1) |
TRI_FAN_PROVOKE_VRTX(2) |
ENABLE_TEXKILL_3D_4D |
TEXKILL_4D);
/* Need to initialize this to zero.
*/
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(3) | (0));
OUT_BATCH(0);
OUT_BATCH(_3DSTATE_DEPTH_SUBRECT_DISABLE);
/* disable indirect state for now
*/
OUT_BATCH(_3DSTATE_LOAD_INDIRECT | 0);
OUT_BATCH(0);
}
/* 7 dwords, 1 relocs */
if (i915->hardware_dirty & I915_HW_IMMEDIATE)
{
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 |
I1_LOAD_S(0) |
I1_LOAD_S(1) |
I1_LOAD_S(2) |
I1_LOAD_S(4) |
I1_LOAD_S(5) |
I1_LOAD_S(6) |
(5));
if(i915->vbo)
OUT_RELOC(i915->vbo,
I915_BUFFER_ACCESS_READ,
i915->current.immediate[I915_IMMEDIATE_S0]);
else
/* FIXME: we should not do this */
OUT_BATCH(0);
OUT_BATCH(i915->current.immediate[I915_IMMEDIATE_S1]);
OUT_BATCH(i915->current.immediate[I915_IMMEDIATE_S2]);
OUT_BATCH(i915->current.immediate[I915_IMMEDIATE_S4]);
OUT_BATCH(i915->current.immediate[I915_IMMEDIATE_S5]);
OUT_BATCH(i915->current.immediate[I915_IMMEDIATE_S6]);
}
/* I915_MAX_DYNAMIC dwords, 0 relocs */
if (i915->hardware_dirty & I915_HW_DYNAMIC)
{
int i;
for (i = 0; i < I915_MAX_DYNAMIC; i++) {
OUT_BATCH(i915->current.dynamic[i]);
}
}
/* 8 dwords, 2 relocs */
if (i915->hardware_dirty & I915_HW_STATIC)
{
struct pipe_surface *cbuf_surface = i915->framebuffer.cbufs[0];
struct pipe_surface *depth_surface = i915->framebuffer.zbuf;
if (cbuf_surface) {
unsigned pitch = (cbuf_surface->pitch * cbuf_surface->cpp);
OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
OUT_BATCH(BUF_3D_ID_COLOR_BACK |
BUF_3D_PITCH(pitch) | /* pitch in bytes */
BUF_3D_USE_FENCE);
OUT_RELOC(cbuf_surface->buffer,
I915_BUFFER_ACCESS_WRITE,
0);
}
/* What happens if no zbuf??
*/
if (depth_surface) {
unsigned zpitch = (depth_surface->pitch * depth_surface->cpp);
OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
OUT_BATCH(BUF_3D_ID_DEPTH |
BUF_3D_PITCH(zpitch) | /* pitch in bytes */
BUF_3D_USE_FENCE);
OUT_RELOC(depth_surface->buffer,
I915_BUFFER_ACCESS_WRITE,
0);
}
{
unsigned cformat, zformat = 0;
if (cbuf_surface)
cformat = cbuf_surface->format;
else
cformat = PIPE_FORMAT_A8R8G8B8_UNORM; /* arbitrary */
cformat = translate_format(cformat);
if (depth_surface)
zformat = translate_depth_format( i915->framebuffer.zbuf->format );
OUT_BATCH(_3DSTATE_DST_BUF_VARS_CMD);
OUT_BATCH(DSTORG_HORT_BIAS(0x8) | /* .5 */
DSTORG_VERT_BIAS(0x8) | /* .5 */
LOD_PRECLAMP_OGL |
TEX_DEFAULT_COLOR_OGL |
cformat |
zformat );
}
}
#if 01
/* texture images */
/* 2 + I915_TEX_UNITS*3 dwords, I915_TEX_UNITS relocs */
if (i915->hardware_dirty & (I915_HW_MAP | I915_HW_SAMPLER))
{
/* XXX: we were refering to sampler state
* (current.sampler_enable_nr) below, but only checking
* I915_HW_MAP above. Should probably calculate the enabled
* flags separately - but there will be further rework of
* state so perhaps not necessary yet.
*/
const uint nr = i915->current.sampler_enable_nr;
if (nr) {
const uint enabled = i915->current.sampler_enable_flags;
uint unit;
uint count = 0;
OUT_BATCH(_3DSTATE_MAP_STATE | (3 * nr));
OUT_BATCH(enabled);
for (unit = 0; unit < I915_TEX_UNITS; unit++) {
if (enabled & (1 << unit)) {
struct pipe_buffer_handle *buf =
i915->texture[unit]->buffer;
uint offset = 0;
assert(buf);
count++;
OUT_RELOC(buf,
I915_BUFFER_ACCESS_READ,
offset);
OUT_BATCH(i915->current.texbuffer[unit][0]); /* MS3 */
OUT_BATCH(i915->current.texbuffer[unit][1]); /* MS4 */
}
}
assert(count == nr);
}
}
#endif
#if 01
/* samplers */
/* 2 + I915_TEX_UNITS*3 dwords, 0 relocs */
if (i915->hardware_dirty & I915_HW_SAMPLER)
{
if (i915->current.sampler_enable_nr) {
int i;
OUT_BATCH( _3DSTATE_SAMPLER_STATE |
(3 * i915->current.sampler_enable_nr) );
OUT_BATCH( i915->current.sampler_enable_flags );
for (i = 0; i < I915_TEX_UNITS; i++) {
if (i915->current.sampler_enable_flags & (1<<i)) {
OUT_BATCH( i915->current.sampler[i][0] );
OUT_BATCH( i915->current.sampler[i][1] );
OUT_BATCH( i915->current.sampler[i][2] );
}
}
}
}
#endif
/* constants */
/* 2 + I915_MAX_CONSTANT*4 dwords, 0 relocs */
if (i915->hardware_dirty & I915_HW_PROGRAM)
{
const uint nr = i915->current.num_constants[PIPE_SHADER_FRAGMENT];
assert(nr <= I915_MAX_CONSTANT);
if (nr > 0) {
const uint *c
= (const uint *) i915->current.constants[PIPE_SHADER_FRAGMENT];
uint i;
OUT_BATCH( _3DSTATE_PIXEL_SHADER_CONSTANTS | (nr * 4) );
OUT_BATCH( (1 << (nr - 1)) | ((1 << (nr - 1)) - 1) );
for (i = 0; i < nr; i++) {
OUT_BATCH(*c++);
OUT_BATCH(*c++);
OUT_BATCH(*c++);
OUT_BATCH(*c++);
}
}
}
/* Fragment program */
/* i915->current.program_len dwords, 0 relocs */
if (i915->hardware_dirty & I915_HW_PROGRAM)
{
uint i;
/* we should always have, at least, a pass-through program */
assert(i915->current.program_len > 0);
for (i = 0; i < i915->current.program_len; i++) {
OUT_BATCH(i915->current.program[i]);
}
}
/* drawing surface size */
/* 6 dwords, 0 relocs */
{
uint w, h;
boolean k = framebuffer_size(&i915->framebuffer, &w, &h);
assert(k);
OUT_BATCH(_3DSTATE_DRAW_RECT_CMD);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(((w - 1) & 0xffff) | ((h - 1) << 16));
OUT_BATCH(0);
OUT_BATCH(0);
}
i915->hardware_dirty = 0;
}
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