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/*
* Copyright 2009 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 "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "pipe/p_inlines.h"
#include "util/u_memory.h"
#include "r300_cs.h"
#include "r300_context.h"
#include "r300_emit.h"
#include "r300_reg.h"
#include "r300_render.h"
#include "r300_state_derived.h"
/* r300_render: Vertex and index buffer primitive emission. */
#define R300_MAX_VBO_SIZE (1024 * 1024)
static uint32_t r300_translate_primitive(unsigned prim)
{
switch (prim) {
case PIPE_PRIM_POINTS:
return R300_VAP_VF_CNTL__PRIM_POINTS;
case PIPE_PRIM_LINES:
return R300_VAP_VF_CNTL__PRIM_LINES;
case PIPE_PRIM_LINE_LOOP:
return R300_VAP_VF_CNTL__PRIM_LINE_LOOP;
case PIPE_PRIM_LINE_STRIP:
return R300_VAP_VF_CNTL__PRIM_LINE_STRIP;
case PIPE_PRIM_TRIANGLES:
return R300_VAP_VF_CNTL__PRIM_TRIANGLES;
case PIPE_PRIM_TRIANGLE_STRIP:
return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP;
case PIPE_PRIM_TRIANGLE_FAN:
return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN;
case PIPE_PRIM_QUADS:
return R300_VAP_VF_CNTL__PRIM_QUADS;
case PIPE_PRIM_QUAD_STRIP:
return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP;
case PIPE_PRIM_POLYGON:
return R300_VAP_VF_CNTL__PRIM_POLYGON;
default:
return 0;
}
}
/* This is the fast-path drawing & emission for HW TCL. */
boolean r300_draw_range_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize,
unsigned minIndex,
unsigned maxIndex,
unsigned mode,
unsigned start,
unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
CS_LOCALS(r300);
uint32_t prim = r300_translate_primitive(mode);
struct pipe_vertex_buffer* aos = r300->vertex_buffers;
unsigned aos_count = r300->vertex_buffer_count;
short* indices;
unsigned packet_size;
unsigned i;
bool invalid = FALSE;
validate:
for (i = 0; i < aos_count; i++) {
if (!r300->winsys->add_buffer(r300->winsys, aos[i].buffer,
RADEON_GEM_DOMAIN_GTT, 0)) {
pipe->flush(pipe, 0, NULL);
goto validate;
}
}
if (!r300->winsys->validate(r300->winsys)) {
pipe->flush(pipe, 0, NULL);
if (invalid) {
/* Well, hell. */
debug_printf("r300: Stuck in validation loop, gonna quit now.");
exit(1);
}
invalid = TRUE;
goto validate;
}
r300_emit_dirty_state(r300);
packet_size = (aos_count >> 1) * 3 + (aos_count & 1) * 2;
BEGIN_CS(3 + packet_size + (aos_count * 2));
OUT_CS_PKT3(R300_PACKET3_3D_LOAD_VBPNTR, packet_size);
OUT_CS(aos_count);
for (i = 0; i < aos_count - 1; i += 2) {
OUT_CS(aos[i].stride |
(aos[i].stride << 8) |
(aos[i + 1].stride << 16) |
(aos[i + 1].stride << 24));
OUT_CS(aos[i].buffer_offset + start * 4 * aos[i].stride);
OUT_CS(aos[i + 1].buffer_offset + start * 4 * aos[i + 1].stride);
}
if (aos_count & 1) {
OUT_CS(aos[i].stride | (aos[i].stride << 8));
OUT_CS(aos[i].buffer_offset + start * 4 * aos[i].stride);
}
for (i = 0; i < aos_count; i++) {
OUT_CS_RELOC(aos[i].buffer, 0, RADEON_GEM_DOMAIN_GTT, 0, 0);
}
END_CS;
if (indexBuffer) {
indices = (short*)pipe_buffer_map(pipe->screen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
/* Set the starting point. */
indices += start;
BEGIN_CS(2 + (count+1)/2);
OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count + 1)/2);
OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | prim);
for (i = 0; i < count - 1; i += 2) {
OUT_CS(indices[i + 1] << 16 | indices[i]);
}
if (count % 2) {
OUT_CS(indices[count - 1]);
}
END_CS;
} else {
BEGIN_CS(2);
OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
prim);
END_CS;
}
return TRUE;
}
/* Simple helpers for context setup. Should probably be moved to util. */
boolean r300_draw_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize, unsigned mode,
unsigned start, unsigned count)
{
return pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0,
mode, start, count);
}
boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
unsigned start, unsigned count)
{
return pipe->draw_elements(pipe, NULL, 0, mode, start, count);
}
/****************************************************************************
* The rest of this file is for SW TCL rendering only. Please be polite and *
* keep these functions separated so that they are easier to locate. ~C. *
***************************************************************************/
/* Draw-based drawing for SW TCL chipsets. */
boolean r300_swtcl_draw_range_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize,
unsigned minIndex,
unsigned maxIndex,
unsigned mode,
unsigned start,
unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
int i;
for (i = 0; i < r300->vertex_buffer_count; i++) {
void* buf = pipe_buffer_map(pipe->screen,
r300->vertex_buffers[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(r300->draw, i, buf);
}
if (indexBuffer) {
void* indices = pipe_buffer_map(pipe->screen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer_range(r300->draw, indexSize,
minIndex, maxIndex, indices);
} else {
draw_set_mapped_element_buffer(r300->draw, 0, NULL);
}
draw_set_mapped_constant_buffer(r300->draw,
r300->shader_constants[PIPE_SHADER_VERTEX].constants,
r300->shader_constants[PIPE_SHADER_VERTEX].count *
(sizeof(float) * 4));
draw_arrays(r300->draw, mode, start, count);
for (i = 0; i < r300->vertex_buffer_count; i++) {
pipe_buffer_unmap(pipe->screen, r300->vertex_buffers[i].buffer);
draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
}
if (indexBuffer) {
pipe_buffer_unmap(pipe->screen, indexBuffer);
draw_set_mapped_element_buffer_range(r300->draw, 0, start,
start + count - 1, NULL);
}
return TRUE;
}
/* Object for rendering using Draw. */
struct r300_render {
/* Parent class */
struct vbuf_render base;
/* Pipe context */
struct r300_context* r300;
/* Vertex information */
size_t vertex_size;
unsigned prim;
unsigned hwprim;
/* VBO */
struct pipe_buffer* vbo;
size_t vbo_size;
size_t vbo_offset;
size_t vbo_max_used;
void * vbo_ptr;
};
static INLINE struct r300_render*
r300_render(struct vbuf_render* render)
{
return (struct r300_render*)render;
}
static const struct vertex_info*
r300_render_get_vertex_info(struct vbuf_render* render)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
r300_update_derived_state(r300);
return &r300->vertex_info->vinfo;
}
static boolean r300_render_allocate_vertices(struct vbuf_render* render,
ushort vertex_size,
ushort count)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
struct pipe_screen* screen = r300->context.screen;
size_t size = (size_t)vertex_size * (size_t)count;
if (size + r300render->vbo_offset > r300render->vbo_size)
{
pipe_buffer_reference(&r300->vbo, NULL);
r300render->vbo = pipe_buffer_create(screen,
64,
PIPE_BUFFER_USAGE_VERTEX,
R300_MAX_VBO_SIZE);
r300render->vbo_offset = 0;
r300render->vbo_size = R300_MAX_VBO_SIZE;
}
r300render->vertex_size = vertex_size;
r300->vbo = r300render->vbo;
r300->vbo_offset = r300render->vbo_offset;
return (r300render->vbo) ? TRUE : FALSE;
}
static void* r300_render_map_vertices(struct vbuf_render* render)
{
struct r300_render* r300render = r300_render(render);
struct pipe_screen* screen = r300render->r300->context.screen;
r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo,
PIPE_BUFFER_USAGE_CPU_WRITE);
return (r300render->vbo_ptr + r300render->vbo_offset);
}
static void r300_render_unmap_vertices(struct vbuf_render* render,
ushort min,
ushort max)
{
struct r300_render* r300render = r300_render(render);
struct pipe_screen* screen = r300render->r300->context.screen;
CS_LOCALS(r300render->r300);
BEGIN_CS(2);
OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max);
END_CS;
r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
r300render->vertex_size * (max + 1));
pipe_buffer_unmap(screen, r300render->vbo);
}
static void r300_render_release_vertices(struct vbuf_render* render)
{
struct r300_render* r300render = r300_render(render);
r300render->vbo_offset += r300render->vbo_max_used;
r300render->vbo_max_used = 0;
}
static boolean r300_render_set_primitive(struct vbuf_render* render,
unsigned prim)
{
struct r300_render* r300render = r300_render(render);
r300render->prim = prim;
switch (prim) {
case PIPE_PRIM_POINTS:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_POINTS;
break;
case PIPE_PRIM_LINES:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINES;
break;
case PIPE_PRIM_LINE_LOOP:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINE_LOOP;
break;
case PIPE_PRIM_LINE_STRIP:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINE_STRIP;
break;
case PIPE_PRIM_TRIANGLES:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLES;
break;
case PIPE_PRIM_TRIANGLE_STRIP:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP;
break;
case PIPE_PRIM_TRIANGLE_FAN:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN;
break;
case PIPE_PRIM_QUADS:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_QUADS;
break;
case PIPE_PRIM_QUAD_STRIP:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_QUAD_STRIP;
break;
case PIPE_PRIM_POLYGON:
r300render->hwprim = R300_VAP_VF_CNTL__PRIM_POLYGON;
break;
default:
return FALSE;
break;
}
return TRUE;
}
static void r300_prepare_render(struct r300_render* render, unsigned count)
{
struct r300_context* r300 = render->r300;
r300_emit_dirty_state(r300);
}
static void r300_render_draw_arrays(struct vbuf_render* render,
unsigned start,
unsigned count)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
CS_LOCALS(r300);
r300_prepare_render(r300render, count);
DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count);
BEGIN_CS(2);
OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
r300render->hwprim);
END_CS;
}
static void r300_render_draw(struct vbuf_render* render,
const ushort* indices,
uint count)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
int i;
CS_LOCALS(r300);
r300_prepare_render(r300render, count);
BEGIN_CS(2 + (count+1)/2);
OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count+1)/2);
OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
r300render->hwprim);
for (i = 0; i < count-1; i += 2) {
OUT_CS(indices[i+1] << 16 | indices[i]);
}
if (count % 2) {
OUT_CS(indices[count-1]);
}
END_CS;
}
static void r300_render_destroy(struct vbuf_render* render)
{
FREE(render);
}
static struct vbuf_render* r300_render_create(struct r300_context* r300)
{
struct r300_render* r300render = CALLOC_STRUCT(r300_render);
r300render->r300 = r300;
/* XXX find real numbers plz */
r300render->base.max_vertex_buffer_bytes = 128 * 1024;
r300render->base.max_indices = 16 * 1024;
r300render->base.get_vertex_info = r300_render_get_vertex_info;
r300render->base.allocate_vertices = r300_render_allocate_vertices;
r300render->base.map_vertices = r300_render_map_vertices;
r300render->base.unmap_vertices = r300_render_unmap_vertices;
r300render->base.set_primitive = r300_render_set_primitive;
r300render->base.draw = r300_render_draw;
r300render->base.draw_arrays = r300_render_draw_arrays;
r300render->base.release_vertices = r300_render_release_vertices;
r300render->base.destroy = r300_render_destroy;
r300render->vbo = NULL;
r300render->vbo_size = 0;
r300render->vbo_offset = 0;
return &r300render->base;
}
struct draw_stage* r300_draw_stage(struct r300_context* r300)
{
struct vbuf_render* render;
struct draw_stage* stage;
render = r300_render_create(r300);
if (!render) {
return NULL;
}
stage = draw_vbuf_stage(r300->draw, render);
if (!stage) {
render->destroy(render);
return NULL;
}
draw_set_render(r300->draw, render);
return stage;
}
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