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android / platform / external / mesa3d / 95ee0ba41f0 / . / src / gallium / drivers / lima / lima_draw.c
blob: 469f18eb6ae0e587b8a1c2c97a0266c2b9f1148f [file] [log] [blame]
/*
* Copyright (c) 2011-2013 Luc Verhaegen <libv@skynet.be>
* Copyright (c) 2017-2019 Lima Project
*
* 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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/format/u_format.h"
#include "util/u_debug.h"
#include "util/u_half.h"
#include "util/u_helpers.h"
#include "util/u_inlines.h"
#include "util/u_pack_color.h"
#include "util/u_split_draw.h"
#include "util/u_upload_mgr.h"
#include "util/u_prim.h"
#include "util/u_vbuf.h"
#include "util/hash_table.h"
#include "lima_context.h"
#include "lima_screen.h"
#include "lima_resource.h"
#include "lima_program.h"
#include "lima_bo.h"
#include "lima_job.h"
#include "lima_texture.h"
#include "lima_util.h"
#include "lima_gpu.h"
#include "pan_minmax_cache.h"
#include <drm-uapi/lima_drm.h>
static void
lima_clip_scissor_to_viewport(struct lima_context *ctx)
{
struct lima_context_framebuffer *fb = &ctx->framebuffer;
struct pipe_scissor_state *cscissor = &ctx->clipped_scissor;
int viewport_left, viewport_right, viewport_bottom, viewport_top;
if (ctx->rasterizer && ctx->rasterizer->base.scissor) {
struct pipe_scissor_state *scissor = &ctx->scissor;
cscissor->minx = scissor->minx;
cscissor->maxx = scissor->maxx;
cscissor->miny = scissor->miny;
cscissor->maxy = scissor->maxy;
} else {
cscissor->minx = 0;
cscissor->maxx = fb->base.width;
cscissor->miny = 0;
cscissor->maxy = fb->base.height;
}
viewport_left = MAX2(ctx->viewport.left, 0);
cscissor->minx = MAX2(cscissor->minx, viewport_left);
viewport_right = MIN2(ctx->viewport.right, fb->base.width);
cscissor->maxx = MIN2(cscissor->maxx, viewport_right);
if (cscissor->minx > cscissor->maxx)
cscissor->minx = cscissor->maxx;
viewport_bottom = MAX2(ctx->viewport.bottom, 0);
cscissor->miny = MAX2(cscissor->miny, viewport_bottom);
viewport_top = MIN2(ctx->viewport.top, fb->base.height);
cscissor->maxy = MIN2(cscissor->maxy, viewport_top);
if (cscissor->miny > cscissor->maxy)
cscissor->miny = cscissor->maxy;
}
static bool
lima_is_scissor_zero(struct lima_context *ctx)
{
struct pipe_scissor_state *cscissor = &ctx->clipped_scissor;
return cscissor->minx == cscissor->maxx || cscissor->miny == cscissor->maxy;
}
static void
lima_update_job_wb(struct lima_context *ctx, unsigned buffers)
{
struct lima_job *job = lima_job_get(ctx);
struct lima_context_framebuffer *fb = &ctx->framebuffer;
/* add to job when the buffer is dirty and resolve is clear (not added before) */
if (fb->base.nr_cbufs && (buffers & PIPE_CLEAR_COLOR0) &&
!(job->resolve & PIPE_CLEAR_COLOR0)) {
struct lima_resource *res = lima_resource(fb->base.cbufs[0]->texture);
lima_flush_job_accessing_bo(ctx, res->bo, true);
_mesa_hash_table_insert(ctx->write_jobs, &res->base, job);
lima_job_add_bo(job, LIMA_PIPE_PP, res->bo, LIMA_SUBMIT_BO_WRITE);
}
/* add to job when the buffer is dirty and resolve is clear (not added before) */
if (fb->base.zsbuf && (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) &&
!(job->resolve & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) {
struct lima_resource *res = lima_resource(fb->base.zsbuf->texture);
lima_flush_job_accessing_bo(ctx, res->bo, true);
_mesa_hash_table_insert(ctx->write_jobs, &res->base, job);
lima_job_add_bo(job, LIMA_PIPE_PP, res->bo, LIMA_SUBMIT_BO_WRITE);
}
job->resolve |= buffers;
}
static void
lima_damage_rect_union(struct pipe_scissor_state *rect,
unsigned minx, unsigned maxx,
unsigned miny, unsigned maxy)
{
rect->minx = MIN2(rect->minx, minx);
rect->miny = MIN2(rect->miny, miny);
rect->maxx = MAX2(rect->maxx, maxx);
rect->maxy = MAX2(rect->maxy, maxy);
}
static void
lima_clear(struct pipe_context *pctx, unsigned buffers, const struct pipe_scissor_state *scissor_state,
const union pipe_color_union *color, double depth, unsigned stencil)
{
struct lima_context *ctx = lima_context(pctx);
struct lima_job *job = lima_job_get(ctx);
/* flush if this job already contains any draw, otherwise multi clear can be
* combined into a single job */
if (lima_job_has_draw_pending(job)) {
lima_do_job(job);
job = lima_job_get(ctx);
}
lima_update_job_wb(ctx, buffers);
/* no need to reload if cleared */
if (ctx->framebuffer.base.nr_cbufs && (buffers & PIPE_CLEAR_COLOR0)) {
struct lima_surface *surf = lima_surface(ctx->framebuffer.base.cbufs[0]);
surf->reload &= ~PIPE_CLEAR_COLOR0;
}
struct lima_job_clear *clear = &job->clear;
clear->buffers = buffers;
if (buffers & PIPE_CLEAR_COLOR0) {
clear->color_8pc =
((uint32_t)float_to_ubyte(color->f[3]) << 24) |
((uint32_t)float_to_ubyte(color->f[2]) << 16) |
((uint32_t)float_to_ubyte(color->f[1]) << 8) |
float_to_ubyte(color->f[0]);
clear->color_16pc =
((uint64_t)float_to_ushort(color->f[3]) << 48) |
((uint64_t)float_to_ushort(color->f[2]) << 32) |
((uint64_t)float_to_ushort(color->f[1]) << 16) |
float_to_ushort(color->f[0]);
}
struct lima_surface *zsbuf = lima_surface(ctx->framebuffer.base.zsbuf);
if (buffers & PIPE_CLEAR_DEPTH) {
clear->depth = util_pack_z(PIPE_FORMAT_Z24X8_UNORM, depth);
if (zsbuf)
zsbuf->reload &= ~PIPE_CLEAR_DEPTH;
} else
clear->depth = 0x00ffffff;
if (buffers & PIPE_CLEAR_STENCIL) {
clear->stencil = stencil;
if (zsbuf)
zsbuf->reload &= ~PIPE_CLEAR_STENCIL;
}
ctx->dirty |= LIMA_CONTEXT_DIRTY_CLEAR;
lima_damage_rect_union(&job->damage_rect,
0, ctx->framebuffer.base.width,
0, ctx->framebuffer.base.height);
}
enum lima_attrib_type {
LIMA_ATTRIB_FLOAT = 0x000,
/* todo: find out what lives here. */
LIMA_ATTRIB_I16 = 0x004,
LIMA_ATTRIB_U16 = 0x005,
LIMA_ATTRIB_I8 = 0x006,
LIMA_ATTRIB_U8 = 0x007,
LIMA_ATTRIB_I8N = 0x008,
LIMA_ATTRIB_U8N = 0x009,
LIMA_ATTRIB_I16N = 0x00A,
LIMA_ATTRIB_U16N = 0x00B,
/* todo: where is the 32 int */
/* todo: find out what lives here. */
LIMA_ATTRIB_FIXED = 0x101
};
static enum lima_attrib_type
lima_pipe_format_to_attrib_type(enum pipe_format format)
{
const struct util_format_description *desc = util_format_description(format);
int i = util_format_get_first_non_void_channel(format);
const struct util_format_channel_description *c = desc->channel + i;
switch (c->type) {
case UTIL_FORMAT_TYPE_FLOAT:
return LIMA_ATTRIB_FLOAT;
case UTIL_FORMAT_TYPE_FIXED:
return LIMA_ATTRIB_FIXED;
case UTIL_FORMAT_TYPE_SIGNED:
if (c->size == 8) {
if (c->normalized)
return LIMA_ATTRIB_I8N;
else
return LIMA_ATTRIB_I8;
}
else if (c->size == 16) {
if (c->normalized)
return LIMA_ATTRIB_I16N;
else
return LIMA_ATTRIB_I16;
}
break;
case UTIL_FORMAT_TYPE_UNSIGNED:
if (c->size == 8) {
if (c->normalized)
return LIMA_ATTRIB_U8N;
else
return LIMA_ATTRIB_U8;
}
else if (c->size == 16) {
if (c->normalized)
return LIMA_ATTRIB_U16N;
else
return LIMA_ATTRIB_U16;
}
break;
}
return LIMA_ATTRIB_FLOAT;
}
static void
lima_pack_vs_cmd(struct lima_context *ctx, const struct pipe_draw_info *info)
{
struct lima_context_constant_buffer *ccb =
ctx->const_buffer + PIPE_SHADER_VERTEX;
struct lima_vs_shader_state *vs = ctx->vs;
struct lima_job *job = lima_job_get(ctx);
VS_CMD_BEGIN(&job->vs_cmd_array, 24);
if (!info->index_size) {
VS_CMD_ARRAYS_SEMAPHORE_BEGIN_1();
VS_CMD_ARRAYS_SEMAPHORE_BEGIN_2();
}
int uniform_size = MIN2(vs->uniform_size, ccb->size);
int size = uniform_size + vs->constant_size + 32;
VS_CMD_UNIFORMS_ADDRESS(
lima_ctx_buff_va(ctx, lima_ctx_buff_gp_uniform),
align(size, 16));
VS_CMD_SHADER_ADDRESS(ctx->vs->bo->va, ctx->vs->shader_size);
VS_CMD_SHADER_INFO(ctx->vs->prefetch, ctx->vs->shader_size);
int num_outputs = ctx->vs->num_outputs;
int num_attributes = ctx->vertex_elements->num_elements;
VS_CMD_VARYING_ATTRIBUTE_COUNT(num_outputs, MAX2(1, num_attributes));
VS_CMD_UNKNOWN1();
VS_CMD_ATTRIBUTES_ADDRESS(
lima_ctx_buff_va(ctx, lima_ctx_buff_gp_attribute_info),
MAX2(1, num_attributes));
VS_CMD_VARYINGS_ADDRESS(
lima_ctx_buff_va(ctx, lima_ctx_buff_gp_varying_info),
num_outputs);
unsigned num = info->index_size ? (ctx->max_index - ctx->min_index + 1) : info->count;
VS_CMD_DRAW(num, info->index_size);
VS_CMD_UNKNOWN2();
VS_CMD_ARRAYS_SEMAPHORE_END(info->index_size);
VS_CMD_END();
}
static void
lima_pack_plbu_cmd(struct lima_context *ctx, const struct pipe_draw_info *info)
{
struct lima_vs_shader_state *vs = ctx->vs;
struct pipe_scissor_state *cscissor = &ctx->clipped_scissor;
struct lima_job *job = lima_job_get(ctx);
PLBU_CMD_BEGIN(&job->plbu_cmd_array, 32);
PLBU_CMD_VIEWPORT_LEFT(fui(ctx->viewport.left));
PLBU_CMD_VIEWPORT_RIGHT(fui(ctx->viewport.right));
PLBU_CMD_VIEWPORT_BOTTOM(fui(ctx->viewport.bottom));
PLBU_CMD_VIEWPORT_TOP(fui(ctx->viewport.top));
if (!info->index_size)
PLBU_CMD_ARRAYS_SEMAPHORE_BEGIN();
int cf = ctx->rasterizer->base.cull_face;
int ccw = ctx->rasterizer->base.front_ccw;
uint32_t cull = 0;
bool force_point_size = false;
if (cf != PIPE_FACE_NONE) {
if (cf & PIPE_FACE_FRONT)
cull |= ccw ? 0x00040000 : 0x00020000;
if (cf & PIPE_FACE_BACK)
cull |= ccw ? 0x00020000 : 0x00040000;
}
/* Specify point size with PLBU command if shader doesn't write */
if (info->mode == PIPE_PRIM_POINTS && ctx->vs->point_size_idx == -1)
force_point_size = true;
/* Specify line width with PLBU command for lines */
if (info->mode > PIPE_PRIM_POINTS && info->mode < PIPE_PRIM_TRIANGLES)
force_point_size = true;
PLBU_CMD_PRIMITIVE_SETUP(force_point_size, cull, info->index_size);
PLBU_CMD_RSW_VERTEX_ARRAY(
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_plb_rsw),
ctx->gp_output->va);
/* TODO
* - we should set it only for the first draw that enabled the scissor and for
* latter draw only if scissor is dirty
*/
assert(cscissor->minx < cscissor->maxx && cscissor->miny < cscissor->maxy);
PLBU_CMD_SCISSORS(cscissor->minx, cscissor->maxx, cscissor->miny, cscissor->maxy);
lima_damage_rect_union(&job->damage_rect, cscissor->minx, cscissor->maxx,
cscissor->miny, cscissor->maxy);
PLBU_CMD_UNKNOWN1();
PLBU_CMD_DEPTH_RANGE_NEAR(fui(ctx->viewport.near));
PLBU_CMD_DEPTH_RANGE_FAR(fui(ctx->viewport.far));
if ((info->mode == PIPE_PRIM_POINTS && ctx->vs->point_size_idx == -1) ||
((info->mode >= PIPE_PRIM_LINES) && (info->mode < PIPE_PRIM_TRIANGLES)))
{
uint32_t v = info->mode == PIPE_PRIM_POINTS ?
fui(ctx->rasterizer->base.point_size) : fui(ctx->rasterizer->base.line_width);
PLBU_CMD_LOW_PRIM_SIZE(v);
}
if (info->index_size) {
PLBU_CMD_INDEXED_DEST(ctx->gp_output->va);
if (vs->point_size_idx != -1)
PLBU_CMD_INDEXED_PT_SIZE(ctx->gp_output->va + ctx->gp_output_point_size_offt);
PLBU_CMD_INDICES(ctx->index_res->bo->va + info->start * info->index_size + ctx->index_offset);
}
else {
/* can this make the attribute info static? */
PLBU_CMD_DRAW_ARRAYS(info->mode, info->start, info->count);
}
PLBU_CMD_ARRAYS_SEMAPHORE_END();
if (info->index_size)
PLBU_CMD_DRAW_ELEMENTS(info->mode, ctx->min_index, info->count);
PLBU_CMD_END();
}
static int
lima_blend_func(enum pipe_blend_func pipe)
{
switch (pipe) {
case PIPE_BLEND_ADD:
return 2;
case PIPE_BLEND_SUBTRACT:
return 0;
case PIPE_BLEND_REVERSE_SUBTRACT:
return 1;
case PIPE_BLEND_MIN:
return 4;
case PIPE_BLEND_MAX:
return 5;
}
return -1;
}
static int
lima_blend_factor_has_alpha(enum pipe_blendfactor pipe)
{
/* Bit 4 is set if the blendfactor uses alpha */
switch (pipe) {
case PIPE_BLENDFACTOR_SRC_ALPHA:
case PIPE_BLENDFACTOR_DST_ALPHA:
case PIPE_BLENDFACTOR_CONST_ALPHA:
case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
return 1;
case PIPE_BLENDFACTOR_SRC_COLOR:
case PIPE_BLENDFACTOR_INV_SRC_COLOR:
case PIPE_BLENDFACTOR_DST_COLOR:
case PIPE_BLENDFACTOR_INV_DST_COLOR:
case PIPE_BLENDFACTOR_CONST_COLOR:
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
case PIPE_BLENDFACTOR_ZERO:
case PIPE_BLENDFACTOR_ONE:
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
return 0;
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA:
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
return -1; /* not supported */
}
return -1;
}
static int
lima_blend_factor_is_inv(enum pipe_blendfactor pipe)
{
/* Bit 3 is set if the blendfactor type is inverted */
switch (pipe) {
case PIPE_BLENDFACTOR_INV_SRC_COLOR:
case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
case PIPE_BLENDFACTOR_INV_DST_COLOR:
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
case PIPE_BLENDFACTOR_ONE:
return 1;
case PIPE_BLENDFACTOR_SRC_COLOR:
case PIPE_BLENDFACTOR_SRC_ALPHA:
case PIPE_BLENDFACTOR_DST_COLOR:
case PIPE_BLENDFACTOR_DST_ALPHA:
case PIPE_BLENDFACTOR_CONST_COLOR:
case PIPE_BLENDFACTOR_CONST_ALPHA:
case PIPE_BLENDFACTOR_ZERO:
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
return 0;
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA:
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
return -1; /* not supported */
}
return -1;
}
static int
lima_blend_factor(enum pipe_blendfactor pipe)
{
/* Bits 0-2 indicate the blendfactor type */
switch (pipe) {
case PIPE_BLENDFACTOR_SRC_COLOR:
case PIPE_BLENDFACTOR_SRC_ALPHA:
case PIPE_BLENDFACTOR_INV_SRC_COLOR:
case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
return 0;
case PIPE_BLENDFACTOR_DST_COLOR:
case PIPE_BLENDFACTOR_DST_ALPHA:
case PIPE_BLENDFACTOR_INV_DST_COLOR:
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
return 1;
case PIPE_BLENDFACTOR_CONST_COLOR:
case PIPE_BLENDFACTOR_CONST_ALPHA:
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
return 2;
case PIPE_BLENDFACTOR_ZERO:
case PIPE_BLENDFACTOR_ONE:
return 3;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
return 4;
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA:
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
return -1; /* not supported */
}
return -1;
}
static int
lima_calculate_alpha_blend(enum pipe_blend_func rgb_func, enum pipe_blend_func alpha_func,
enum pipe_blendfactor rgb_src_factor, enum pipe_blendfactor rgb_dst_factor,
enum pipe_blendfactor alpha_src_factor, enum pipe_blendfactor alpha_dst_factor)
{
/* PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE has to be changed to PIPE_BLENDFACTOR_ONE
* if it is set for alpha_src.
*/
if (alpha_src_factor == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE)
alpha_src_factor = PIPE_BLENDFACTOR_ONE;
return lima_blend_func(rgb_func) |
(lima_blend_func(alpha_func) << 3) |
(lima_blend_factor(rgb_src_factor) << 6) |
(lima_blend_factor_is_inv(rgb_src_factor) << 9) |
(lima_blend_factor_has_alpha(rgb_src_factor) << 10) |
(lima_blend_factor(rgb_dst_factor) << 11) |
(lima_blend_factor_is_inv(rgb_dst_factor) << 14) |
(lima_blend_factor_has_alpha(rgb_dst_factor) << 15) |
(lima_blend_factor(alpha_src_factor) << 16) |
(lima_blend_factor_is_inv(alpha_src_factor) << 19) |
(lima_blend_factor(alpha_dst_factor) << 20) |
(lima_blend_factor_is_inv(alpha_dst_factor) << 23) |
0x0C000000; /* need to check if this is GLESv1 glAlphaFunc */
}
static int
lima_stencil_op(enum pipe_stencil_op pipe)
{
switch (pipe) {
case PIPE_STENCIL_OP_KEEP:
return 0;
case PIPE_STENCIL_OP_ZERO:
return 2;
case PIPE_STENCIL_OP_REPLACE:
return 1;
case PIPE_STENCIL_OP_INCR:
return 6;
case PIPE_STENCIL_OP_DECR:
return 7;
case PIPE_STENCIL_OP_INCR_WRAP:
return 4;
case PIPE_STENCIL_OP_DECR_WRAP:
return 5;
case PIPE_STENCIL_OP_INVERT:
return 3;
}
return -1;
}
static unsigned
lima_calculate_depth_test(struct pipe_depth_state *depth, struct pipe_rasterizer_state *rst)
{
int offset_scale = 0, offset_units = 0;
enum pipe_compare_func func = (depth->enabled ? depth->func : PIPE_FUNC_ALWAYS);
offset_scale = CLAMP(rst->offset_scale * 4, -128, 127);
if (offset_scale < 0)
offset_scale += 0x100;
offset_units = CLAMP(rst->offset_units * 2, -128, 127);
if (offset_units < 0)
offset_units += 0x100;
return (depth->enabled && depth->writemask) |
((int)func << 1) |
(offset_scale << 16) |
(offset_units << 24) |
0x30; /* find out what is this */
}
static void
lima_pack_render_state(struct lima_context *ctx, const struct pipe_draw_info *info)
{
struct lima_fs_shader_state *fs = ctx->fs;
struct lima_render_state *render =
lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_plb_rsw,
sizeof(*render));
bool early_z = true;
bool pixel_kill = true;
/* do hw support RGBA independ blend?
* PIPE_CAP_INDEP_BLEND_ENABLE
*
* how to handle the no cbuf only zbuf case?
*/
struct pipe_rt_blend_state *rt = ctx->blend->base.rt;
render->blend_color_bg = float_to_ubyte(ctx->blend_color.color[2]) |
(float_to_ubyte(ctx->blend_color.color[1]) << 16);
render->blend_color_ra = float_to_ubyte(ctx->blend_color.color[0]) |
(float_to_ubyte(ctx->blend_color.color[3]) << 16);
if (rt->blend_enable) {
render->alpha_blend = lima_calculate_alpha_blend(rt->rgb_func, rt->alpha_func,
rt->rgb_src_factor, rt->rgb_dst_factor,
rt->alpha_src_factor, rt->alpha_dst_factor);
}
else {
/*
* Special handling for blending disabled.
* Binary driver is generating the same alpha_value,
* as when we would just enable blending, without changing/setting any blend equation/params.
* Normaly in this case mesa would set all rt fields (func/factor) to zero.
*/
render->alpha_blend = lima_calculate_alpha_blend(PIPE_BLEND_ADD, PIPE_BLEND_ADD,
PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ZERO,
PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ZERO);
}
render->alpha_blend |= (rt->colormask & PIPE_MASK_RGBA) << 28;
struct pipe_rasterizer_state *rst = &ctx->rasterizer->base;
struct pipe_depth_state *depth = &ctx->zsa->base.depth;
render->depth_test = lima_calculate_depth_test(depth, rst);
ushort far, near;
near = float_to_ushort(ctx->viewport.near);
far = float_to_ushort(ctx->viewport.far);
/* Subtract epsilon from 'near' if far == near. Make sure we don't get overflow */
if ((far == near) && (near != 0))
near--;
/* overlap with plbu? any place can remove one? */
render->depth_range = near | (far << 16);
struct pipe_stencil_state *stencil = ctx->zsa->base.stencil;
struct pipe_stencil_ref *ref = &ctx->stencil_ref;
if (stencil[0].enabled) { /* stencil is enabled */
render->stencil_front = stencil[0].func |
(lima_stencil_op(stencil[0].fail_op) << 3) |
(lima_stencil_op(stencil[0].zfail_op) << 6) |
(lima_stencil_op(stencil[0].zpass_op) << 9) |
(ref->ref_value[0] << 16) |
(stencil[0].valuemask << 24);
render->stencil_back = render->stencil_front;
render->stencil_test = (stencil[0].writemask & 0xff) | (stencil[0].writemask & 0xff) << 8;
if (stencil[1].enabled) { /* two-side is enabled */
render->stencil_back = stencil[1].func |
(lima_stencil_op(stencil[1].fail_op) << 3) |
(lima_stencil_op(stencil[1].zfail_op) << 6) |
(lima_stencil_op(stencil[1].zpass_op) << 9) |
(ref->ref_value[1] << 16) |
(stencil[1].valuemask << 24);
render->stencil_test = (stencil[0].writemask & 0xff) | (stencil[1].writemask & 0xff) << 8;
}
/* TODO: Find out, what (render->stecil_test & 0xffff0000) is.
* 0x00ff0000 is probably (float_to_ubyte(alpha->ref_value) << 16)
* (render->multi_sample & 0x00000007 is probably the compare function
* of glAlphaFunc then.
*/
}
else {
/* Default values, when stencil is disabled:
* stencil[0|1].valuemask = 0xff
* stencil[0|1].func = PIPE_FUNC_ALWAYS
* stencil[0|1].writemask = 0xff
*/
render->stencil_front = 0xff000007;
render->stencil_back = 0xff000007;
render->stencil_test = 0x0000ffff;
}
/* need more investigation */
if (info->mode == PIPE_PRIM_POINTS)
render->multi_sample = 0x0000F007;
else if (info->mode < PIPE_PRIM_TRIANGLES)
render->multi_sample = 0x0000F407;
else
render->multi_sample = 0x0000F807;
if (ctx->framebuffer.base.samples)
render->multi_sample |= 0x68;
render->shader_address =
ctx->fs->bo->va | (((uint32_t *)ctx->fs->bo->map)[0] & 0x1F);
/* seems not needed */
render->uniforms_address = 0x00000000;
render->textures_address = 0x00000000;
render->aux0 = (ctx->vs->varying_stride >> 3);
render->aux1 = 0x00001000;
if (ctx->blend->base.dither)
render->aux1 |= 0x00002000;
if (fs->uses_discard) {
early_z = false;
pixel_kill = false;
}
if (rt->blend_enable)
pixel_kill = false;
if ((rt->colormask & PIPE_MASK_RGBA) != PIPE_MASK_RGBA)
pixel_kill = false;
if (early_z)
render->aux0 |= 0x300;
if (pixel_kill)
render->aux0 |= 0x1000;
if (ctx->tex_stateobj.num_samplers) {
render->textures_address =
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc);
render->aux0 |= ctx->tex_stateobj.num_samplers << 14;
render->aux0 |= 0x20;
}
if (ctx->const_buffer[PIPE_SHADER_FRAGMENT].buffer) {
render->uniforms_address =
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_uniform_array);
uint32_t size = ctx->buffer_state[lima_ctx_buff_pp_uniform].size;
uint32_t bits = 0;
if (size >= 8) {
bits = util_last_bit(size >> 3) - 1;
bits += size & u_bit_consecutive(0, bits + 3) ? 1 : 0;
}
render->uniforms_address |= bits > 0xf ? 0xf : bits;
render->aux0 |= 0x80;
render->aux1 |= 0x10000;
}
if (ctx->vs->num_varyings) {
render->varying_types = 0x00000000;
render->varyings_address = ctx->gp_output->va +
ctx->gp_output_varyings_offt;
for (int i = 0, index = 0; i < ctx->vs->num_outputs; i++) {
int val;
if (i == ctx->vs->gl_pos_idx ||
i == ctx->vs->point_size_idx)
continue;
struct lima_varying_info *v = ctx->vs->varying + i;
if (v->component_size == 4)
val = v->components > 2 ? 0 : 1;
else
val = v->components > 2 ? 2 : 3;
if (index < 10)
render->varying_types |= val << (3 * index);
else if (index == 10) {
render->varying_types |= val << 30;
render->varyings_address |= val >> 2;
}
else if (index == 11)
render->varyings_address |= val << 1;
index++;
}
}
else {
render->varying_types = 0x00000000;
render->varyings_address = 0x00000000;
}
struct lima_job *job = lima_job_get(ctx);
lima_dump_command_stream_print(
job->dump, render, sizeof(*render),
false, "add render state at va %x\n",
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_plb_rsw));
lima_dump_rsw_command_stream_print(
job->dump, render, sizeof(*render),
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_plb_rsw));
}
static void
lima_update_gp_attribute_info(struct lima_context *ctx, const struct pipe_draw_info *info)
{
struct lima_job *job = lima_job_get(ctx);
struct lima_vertex_element_state *ve = ctx->vertex_elements;
struct lima_context_vertex_buffer *vb = &ctx->vertex_buffers;
uint32_t *attribute =
lima_ctx_buff_alloc(ctx, lima_ctx_buff_gp_attribute_info,
MAX2(1, ve->num_elements) * 8);
int n = 0;
for (int i = 0; i < ve->num_elements; i++) {
struct pipe_vertex_element *pve = ve->pipe + i;
assert(pve->vertex_buffer_index < vb->count);
assert(vb->enabled_mask & (1 << pve->vertex_buffer_index));
struct pipe_vertex_buffer *pvb = vb->vb + pve->vertex_buffer_index;
struct lima_resource *res = lima_resource(pvb->buffer.resource);
lima_job_add_bo(job, LIMA_PIPE_GP, res->bo, LIMA_SUBMIT_BO_READ);
unsigned start = info->index_size ? (ctx->min_index + info->index_bias) : info->start;
attribute[n++] = res->bo->va + pvb->buffer_offset + pve->src_offset
+ start * pvb->stride;
attribute[n++] = (pvb->stride << 11) |
(lima_pipe_format_to_attrib_type(pve->src_format) << 2) |
(util_format_get_nr_components(pve->src_format) - 1);
}
lima_dump_command_stream_print(
job->dump, attribute, n * 4, false, "update attribute info at va %x\n",
lima_ctx_buff_va(ctx, lima_ctx_buff_gp_attribute_info));
}
static void
lima_update_gp_uniform(struct lima_context *ctx)
{
struct lima_context_constant_buffer *ccb =
ctx->const_buffer + PIPE_SHADER_VERTEX;
struct lima_vs_shader_state *vs = ctx->vs;
int uniform_size = MIN2(vs->uniform_size, ccb->size);
int size = uniform_size + vs->constant_size + 32;
void *vs_const_buff =
lima_ctx_buff_alloc(ctx, lima_ctx_buff_gp_uniform, size);
if (ccb->buffer)
memcpy(vs_const_buff, ccb->buffer, uniform_size);
memcpy(vs_const_buff + uniform_size,
ctx->viewport.transform.scale,
sizeof(ctx->viewport.transform.scale));
memcpy(vs_const_buff + uniform_size + 16,
ctx->viewport.transform.translate,
sizeof(ctx->viewport.transform.translate));
if (vs->constant)
memcpy(vs_const_buff + uniform_size + 32,
vs->constant, vs->constant_size);
struct lima_job *job = lima_job_get(ctx);
if (lima_debug & LIMA_DEBUG_GP) {
float *vs_const_buff_f = vs_const_buff;
printf("gp uniforms:\n");
for (int i = 0; i < (size / sizeof(float)); i++) {
if ((i % 4) == 0)
printf("%4d:", i / 4);
printf(" %8.4f", vs_const_buff_f[i]);
if ((i % 4) == 3)
printf("\n");
}
printf("\n");
}
lima_dump_command_stream_print(
job->dump, vs_const_buff, size, true,
"update gp uniform at va %x\n",
lima_ctx_buff_va(ctx, lima_ctx_buff_gp_uniform));
}
static void
lima_update_pp_uniform(struct lima_context *ctx)
{
const float *const_buff = ctx->const_buffer[PIPE_SHADER_FRAGMENT].buffer;
size_t const_buff_size = ctx->const_buffer[PIPE_SHADER_FRAGMENT].size / sizeof(float);
if (!const_buff)
return;
uint16_t *fp16_const_buff =
lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_uniform,
const_buff_size * sizeof(uint16_t));
uint32_t *array =
lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_uniform_array, 4);
for (int i = 0; i < const_buff_size; i++)
fp16_const_buff[i] = util_float_to_half(const_buff[i]);
*array = lima_ctx_buff_va(ctx, lima_ctx_buff_pp_uniform);
struct lima_job *job = lima_job_get(ctx);
lima_dump_command_stream_print(
job->dump, fp16_const_buff, const_buff_size * 2,
false, "add pp uniform data at va %x\n",
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_uniform));
lima_dump_command_stream_print(
job->dump, array, 4, false, "add pp uniform info at va %x\n",
lima_ctx_buff_va(ctx, lima_ctx_buff_pp_uniform_array));
}
static void
lima_update_varying(struct lima_context *ctx, const struct pipe_draw_info *info)
{
struct lima_job *job = lima_job_get(ctx);
struct lima_screen *screen = lima_screen(ctx->base.screen);
struct lima_vs_shader_state *vs = ctx->vs;
uint32_t gp_output_size;
unsigned num = info->index_size ? (ctx->max_index - ctx->min_index + 1) : info->count;
uint32_t *varying =
lima_ctx_buff_alloc(ctx, lima_ctx_buff_gp_varying_info,
vs->num_outputs * 8);
int n = 0;
int offset = 0;
for (int i = 0; i < vs->num_outputs; i++) {
struct lima_varying_info *v = vs->varying + i;
if (i == vs->gl_pos_idx ||
i == vs->point_size_idx)
continue;
int size = v->component_size * 4;
/* does component_size == 2 need to be 16 aligned? */
if (v->component_size == 4)
offset = align(offset, 16);
v->offset = offset;
offset += size;
}
vs->varying_stride = align(offset, 16);
/* gl_Position is always present, allocate space for it */
gp_output_size = align(4 * 4 * num, 0x40);
/* Allocate space for varyings if there're any */
if (vs->num_varyings) {
ctx->gp_output_varyings_offt = gp_output_size;
gp_output_size += align(vs->varying_stride * num, 0x40);
}
/* Allocate space for gl_PointSize if it's there */
if (vs->point_size_idx != -1) {
ctx->gp_output_point_size_offt = gp_output_size;
gp_output_size += 4 * num;
}
/* gp_output can be too large for the suballocator, so create a
* separate bo for it. The bo cache should prevent performance hit.
*/
ctx->gp_output = lima_bo_create(screen, gp_output_size, 0);
assert(ctx->gp_output);
lima_job_add_bo(job, LIMA_PIPE_GP, ctx->gp_output, LIMA_SUBMIT_BO_WRITE);
lima_job_add_bo(job, LIMA_PIPE_PP, ctx->gp_output, LIMA_SUBMIT_BO_READ);
for (int i = 0; i < vs->num_outputs; i++) {
struct lima_varying_info *v = vs->varying + i;
if (i == vs->gl_pos_idx) {
/* gl_Position */
varying[n++] = ctx->gp_output->va;
varying[n++] = 0x8020;
} else if (i == vs->point_size_idx) {
/* gl_PointSize */
varying[n++] = ctx->gp_output->va + ctx->gp_output_point_size_offt;
varying[n++] = 0x2021;
} else {
/* Varying */
varying[n++] = ctx->gp_output->va + ctx->gp_output_varyings_offt +
v->offset;
varying[n++] = (vs->varying_stride << 11) | (v->components - 1) |
(v->component_size == 2 ? 0x0C : 0);
}
}
lima_dump_command_stream_print(
job->dump, varying, n * 4, false, "update varying info at va %x\n",
lima_ctx_buff_va(ctx, lima_ctx_buff_gp_varying_info));
}
static void
lima_draw_vbo_update(struct pipe_context *pctx,
const struct pipe_draw_info *info)
{
struct lima_context *ctx = lima_context(pctx);
struct lima_context_framebuffer *fb = &ctx->framebuffer;
unsigned buffers = 0;
if (fb->base.zsbuf) {
if (ctx->zsa->base.depth.enabled)
buffers |= PIPE_CLEAR_DEPTH;
if (ctx->zsa->base.stencil[0].enabled ||
ctx->zsa->base.stencil[1].enabled)
buffers |= PIPE_CLEAR_STENCIL;
}
if (fb->base.nr_cbufs)
buffers |= PIPE_CLEAR_COLOR0;
lima_update_job_wb(ctx, buffers);
lima_update_gp_attribute_info(ctx, info);
if ((ctx->dirty & LIMA_CONTEXT_DIRTY_CONST_BUFF &&
ctx->const_buffer[PIPE_SHADER_VERTEX].dirty) ||
ctx->dirty & LIMA_CONTEXT_DIRTY_VIEWPORT ||
ctx->dirty & LIMA_CONTEXT_DIRTY_SHADER_VERT) {
lima_update_gp_uniform(ctx);
ctx->const_buffer[PIPE_SHADER_VERTEX].dirty = false;
}
lima_update_varying(ctx, info);
lima_pack_vs_cmd(ctx, info);
if (ctx->dirty & LIMA_CONTEXT_DIRTY_CONST_BUFF &&
ctx->const_buffer[PIPE_SHADER_FRAGMENT].dirty) {
lima_update_pp_uniform(ctx);
ctx->const_buffer[PIPE_SHADER_FRAGMENT].dirty = false;
}
lima_update_textures(ctx);
lima_pack_render_state(ctx, info);
lima_pack_plbu_cmd(ctx, info);
if (ctx->gp_output) {
lima_bo_unreference(ctx->gp_output); /* held by job */
ctx->gp_output = NULL;
}
ctx->dirty = 0;
}
static void
lima_draw_vbo_indexed(struct pipe_context *pctx,
const struct pipe_draw_info *info)
{
struct lima_context *ctx = lima_context(pctx);
struct lima_job *job = lima_job_get(ctx);
struct pipe_resource *indexbuf = NULL;
bool needs_indices = true;
/* Mali Utgard GPU always need min/max index info for index draw,
* compute it if upper layer does not do for us */
if (info->max_index != ~0u) {
ctx->min_index = info->min_index;
ctx->max_index = info->max_index;
needs_indices = false;
}
if (info->has_user_indices) {
util_upload_index_buffer(&ctx->base, info, &indexbuf, &ctx->index_offset, 0x40);
ctx->index_res = lima_resource(indexbuf);
}
else {
ctx->index_res = lima_resource(info->index.resource);
ctx->index_offset = 0;
needs_indices = !panfrost_minmax_cache_get(ctx->index_res->index_cache, info->start,
info->count, &ctx->min_index, &ctx->max_index);
}
if (needs_indices) {
u_vbuf_get_minmax_index(pctx, info, &ctx->min_index, &ctx->max_index);
if (!info->has_user_indices)
panfrost_minmax_cache_add(ctx->index_res->index_cache, info->start, info->count,
ctx->min_index, ctx->max_index);
}
lima_job_add_bo(job, LIMA_PIPE_GP, ctx->index_res->bo, LIMA_SUBMIT_BO_READ);
lima_job_add_bo(job, LIMA_PIPE_PP, ctx->index_res->bo, LIMA_SUBMIT_BO_READ);
lima_draw_vbo_update(pctx, info);
if (indexbuf)
pipe_resource_reference(&indexbuf, NULL);
}
static void
lima_draw_vbo_count(struct pipe_context *pctx,
const struct pipe_draw_info *info)
{
static const uint32_t max_verts = 65535;
struct pipe_draw_info local_info = *info;
unsigned start = info->start;
unsigned count = info->count;
while (count) {
unsigned this_count = count;
unsigned step;
u_split_draw(info, max_verts, &this_count, &step);
local_info.start = start;
local_info.count = this_count;
lima_draw_vbo_update(pctx, &local_info);
count -= step;
start += step;
}
}
static void
lima_draw_vbo(struct pipe_context *pctx,
const struct pipe_draw_info *info)
{
/* check if draw mode and vertex/index count match,
* otherwise gp will hang */
if (!u_trim_pipe_prim(info->mode, (unsigned*)&info->count)) {
debug_printf("draw mode and vertex/index count mismatch\n");
return;
}
struct lima_context *ctx = lima_context(pctx);
if (!ctx->vs || !ctx->fs) {
debug_warn_once("no shader, skip draw\n");
return;
}
lima_clip_scissor_to_viewport(ctx);
if (lima_is_scissor_zero(ctx))
return;
if (!lima_update_vs_state(ctx) || !lima_update_fs_state(ctx))
return;
struct lima_job *job = lima_job_get(ctx);
lima_dump_command_stream_print(
job->dump, ctx->vs->bo->map, ctx->vs->shader_size, false,
"add vs at va %x\n", ctx->vs->bo->va);
lima_dump_command_stream_print(
job->dump, ctx->fs->bo->map, ctx->fs->shader_size, false,
"add fs at va %x\n", ctx->fs->bo->va);
lima_job_add_bo(job, LIMA_PIPE_GP, ctx->vs->bo, LIMA_SUBMIT_BO_READ);
lima_job_add_bo(job, LIMA_PIPE_PP, ctx->fs->bo, LIMA_SUBMIT_BO_READ);
if (info->index_size)
lima_draw_vbo_indexed(pctx, info);
else
lima_draw_vbo_count(pctx, info);
}
void
lima_draw_init(struct lima_context *ctx)
{
ctx->base.clear = lima_clear;
ctx->base.draw_vbo = lima_draw_vbo;
}