qrhi.cpp 25.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt RHI module
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qrhi_p.h"
#include <qmath.h>

Laszlo Agocs's avatar
Laszlo Agocs committed
40
#include "qrhinull_p.h"
41
#ifndef QT_NO_OPENGL
42
#include "qrhigles2_p.h"
43
#endif
44 45 46 47 48 49 50 51 52 53 54 55
#if QT_CONFIG(vulkan)
#include "qrhivulkan_p.h"
#endif
#ifdef Q_OS_WIN
#include "qrhid3d11_p.h"
#endif
#ifdef Q_OS_DARWIN
#include "qrhimetal_p.h"
#endif

QT_BEGIN_NAMESPACE

Laszlo Agocs's avatar
Laszlo Agocs committed
56 57 58
/*!
    \class QRhi
    \inmodule QtRhi
Laszlo Agocs's avatar
Laszlo Agocs committed
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132

    \brief Accelerated 2D/3D graphics API abstraction.
 */

/*!
    \enum QRhi::Implementation
    Describes which graphics API-specific backend gets used by a QRhi instance.

    \value Null
    \value Vulkan
    \value OpenGLES2
    \value D3D11
    \value Metal
 */

/*!
    \enum QRhi::Flag
    Describes what special features to enable.

    \value EnableProfiling Enables gathering timing (CPU, GPU) and resource
    (QRhiBuffer, QRhiTexture, etc.) information and additional metadata. See
    QRhiProfiler. Avoid enabling in production builds as it may involve a
    performance penalty.

    \value EnableDebugMarkers Enables debug marker groups. Without this frame
    debugging features like making debug groups and custom resource name
    visible in external GPU debugging tools will not be available and functions
    like QRhiCommandBuffer::debugMarkBegin() will become a no-op. Avoid
    enabling in production builds as it may involve a performance penalty.
 */

/*!
    \enum QRhi::FrameOpResult
    Describes the result of operations that can have a soft failure.

    \value FrameOpSuccess Success

    \value FrameOpError Unspecified error

    \value FrameOpSwapChainOutOfDate The swapchain is in an inconsistent state
    internally. This can be recoverable by attempting to repeat the operation
    (such as, beginFrame()) later.

    \value FrameOpDeviceLost The graphics device was lost. This can be
    recoverable by attempting to repeat the operation (such as, beginFrame())
    and releasing and reinitializing all objects backed by native graphics
    resources.
 */

/*!
    \enum QRhi::Feature
    Flag values to indicate what features are supported by the backend currently in use.

    \value MultisampleTexture Textures with sample count larger than 1 are supported.
    \value MultisampleRenderBuffer Renderbuffers with sample count larger than 1 are supported.
    \value DebugMarkers Debug marker groups (and so QRhiCommandBuffer::debugMarkBegin()) are supported.
    \value Timestamps Command buffer timestamps are supported. Relevant for QRhiProfiler::gpuFrameTimes().
    \value Instancing Instanced drawing is supported.
    \value CustomInstanceStepRate Instance step rate other than 1 is supported.
 */

/*!
    \enum QRhi::ResourceSizeLimit
    Describes the resource limit to query.

    \value TextureSizeMin Minimum texture width and height. This is typically
    1. The minimum texture size is handled gracefully, meaning attempting to
    create a texture with an empty size will instead create a texture with the
    minimum size.

    \value TextureSizeMax Maximum texture width and height. This depends on the
    graphics API and sometimes the platform or implementation as well.
    Typically the value is in the range 4096 - 16384. Attempting to create
    textures larger than this is expected to fail.
Laszlo Agocs's avatar
Laszlo Agocs committed
133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304
 */

/*!
    \class QRhiInitParams
    \inmodule QtRhi
 */

/*!
    \class QRhiColorClearValue
    \inmodule QtRhi
 */

/*!
    \class QRhiDepthStencilClearValue
    \inmodule QtRhi
 */

/*!
    \class QRhiViewport
    \inmodule QtRhi
 */

/*!
    \class QRhiScissor
    \inmodule QtRhi
 */

/*!
    \class QRhiVertexInputLayout
    \inmodule QtRhi
 */

/*!
    \class QRhiVertexInputLayout::Binding
    \inmodule QtRhi
 */

/*!
    \class QRhiVertexInputLayout::Attribute
    \inmodule QtRhi
 */

/*!
    \class QRhiGraphicsShaderStage
    \inmodule QtRhi
 */

/*!
    \class QRhiShaderResourceBinding
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureRenderTargetDescription
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureRenderTargetDescription::ColorAttachment
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureUploadDescription
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureUploadDescription::Layer
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureUploadDescription::Layer::MipLevel
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureCopyDescription
    \inmodule QtRhi
 */

/*!
    \class QRhiReadbackDescription
    \inmodule QtRhi
 */

/*!
    \class QRhiReadbackResult
    \inmodule QtRhi
 */

/*!
    \class QRhiNativeHandles
    \inmodule QtRhi
 */

/*!
    \class QRhiResource
    \inmodule QtRhi
 */

/*!
    \class QRhiBuffer
    \inmodule QtRhi
 */

/*!
    \class QRhiTexture
    \inmodule QtRhi
 */

/*!
    \class QRhiSampler
    \inmodule QtRhi
 */

/*!
    \class QRhiRenderBuffer
    \inmodule QtRhi
 */

/*!
    \class QRhiRenderPassDescriptor
    \inmodule QtRhi
 */

/*!
    \class QRhiRenderTarget
    \inmodule QtRhi
 */

/*!
    \class QRhiTextureRenderTarget
    \inmodule QtRhi
 */

/*!
    \class QRhiShaderResourceBindings
    \inmodule QtRhi
 */

/*!
    \class QRhiGraphicsPipeline
    \inmodule QtRhi
 */

/*!
    \class QRhiGraphicsPipeline::TargetBlend
    \inmodule QtRhi
 */

/*!
    \class QRhiGraphicsPipeline::StencilOpState
    \inmodule QtRhi
 */

/*!
    \class QRhiSwapChain
    \inmodule QtRhi
 */

/*!
    \class QRhiCommandBuffer
    \inmodule QtRhi
 */

/*!
    \class QRhiResourceUpdateBatch
    \inmodule QtRhi
 */

305 306 307 308 309 310 311 312 313 314 315 316 317 318 319
QRhiResource::QRhiResource(QRhiImplementation *rhi_)
    : rhi(rhi_)
{
}

QRhiResource::~QRhiResource()
{
}

void QRhiResource::releaseAndDestroy()
{
    release();
    delete this;
}

320 321 322 323 324 325 326 327 328 329
QByteArray QRhiResource::name() const
{
    return objectName;
}

void QRhiResource::setName(const QByteArray &name)
{
    objectName = name;
}

330 331
QRhiBuffer::QRhiBuffer(QRhiImplementation *rhi, Type type_, UsageFlags usage_, int size_)
    : QRhiResource(rhi),
Laszlo Agocs's avatar
Laszlo Agocs committed
332
      m_type(type_), m_usage(usage_), m_size(size_)
333 334 335 336
{
}

QRhiRenderBuffer::QRhiRenderBuffer(QRhiImplementation *rhi, Type type_, const QSize &pixelSize_,
Laszlo Agocs's avatar
Laszlo Agocs committed
337
                                   int sampleCount_, Flags flags_)
338
    : QRhiResource(rhi),
Laszlo Agocs's avatar
Laszlo Agocs committed
339
      m_type(type_), m_pixelSize(pixelSize_), m_sampleCount(sampleCount_), m_flags(flags_)
340 341 342
{
}

Laszlo Agocs's avatar
Laszlo Agocs committed
343 344
QRhiTexture::QRhiTexture(QRhiImplementation *rhi, Format format_, const QSize &pixelSize_,
                         int sampleCount_, Flags flags_)
345
    : QRhiResource(rhi),
Laszlo Agocs's avatar
Laszlo Agocs committed
346
      m_format(format_), m_pixelSize(pixelSize_), m_sampleCount(sampleCount_), m_flags(flags_)
347 348 349
{
}

350
const QRhiNativeHandles *QRhiTexture::nativeHandles()
351 352 353 354
{
    return nullptr;
}

355
bool QRhiTexture::buildFrom(const QRhiNativeHandles *src)
356 357 358 359 360
{
    Q_UNUSED(src);
    return false;
}

361 362 363 364
QRhiSampler::QRhiSampler(QRhiImplementation *rhi,
                         Filter magFilter_, Filter minFilter_, Filter mipmapMode_,
                         AddressMode u_, AddressMode v_, AddressMode w_)
    : QRhiResource(rhi),
Laszlo Agocs's avatar
Laszlo Agocs committed
365 366
      m_magFilter(magFilter_), m_minFilter(minFilter_), m_mipmapMode(mipmapMode_),
      m_addressU(u_), m_addressV(v_), m_addressW(w_)
367 368 369
{
}

370
QRhiRenderPassDescriptor::QRhiRenderPassDescriptor(QRhiImplementation *rhi)
371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388
    : QRhiResource(rhi)
{
}

QRhiRenderTarget::QRhiRenderTarget(QRhiImplementation *rhi)
    : QRhiResource(rhi)
{
}

QRhiReferenceRenderTarget::QRhiReferenceRenderTarget(QRhiImplementation *rhi)
    : QRhiRenderTarget(rhi)
{
}

QRhiTextureRenderTarget::QRhiTextureRenderTarget(QRhiImplementation *rhi,
                                                 const QRhiTextureRenderTargetDescription &desc_,
                                                 Flags flags_)
    : QRhiRenderTarget(rhi),
Laszlo Agocs's avatar
Laszlo Agocs committed
389 390
      m_desc(desc_),
      m_flags(flags_)
391 392 393 394 395 396 397 398
{
}

QRhiShaderResourceBindings::QRhiShaderResourceBindings(QRhiImplementation *rhi)
    : QRhiResource(rhi)
{
}

Laszlo Agocs's avatar
Laszlo Agocs committed
399
QRhiShaderResourceBinding QRhiShaderResourceBinding::uniformBuffer(
400 401
        int binding_, StageFlags stage_, QRhiBuffer *buf_)
{
Laszlo Agocs's avatar
Laszlo Agocs committed
402
    QRhiShaderResourceBinding b;
403 404 405 406 407 408 409 410 411
    b.binding = binding_;
    b.stage = stage_;
    b.type = UniformBuffer;
    b.ubuf.buf = buf_;
    b.ubuf.offset = 0;
    b.ubuf.maybeSize = 0; // entire buffer
    return b;
}

Laszlo Agocs's avatar
Laszlo Agocs committed
412
QRhiShaderResourceBinding QRhiShaderResourceBinding::uniformBuffer(
413 414 415
        int binding_, StageFlags stage_, QRhiBuffer *buf_, int offset_, int size_)
{
    Q_ASSERT(size_ > 0);
Laszlo Agocs's avatar
Laszlo Agocs committed
416
    QRhiShaderResourceBinding b;
417 418 419 420 421 422 423 424 425
    b.binding = binding_;
    b.stage = stage_;
    b.type = UniformBuffer;
    b.ubuf.buf = buf_;
    b.ubuf.offset = offset_;
    b.ubuf.maybeSize = size_;
    return b;
}

Laszlo Agocs's avatar
Laszlo Agocs committed
426
QRhiShaderResourceBinding QRhiShaderResourceBinding::sampledTexture(
427 428
        int binding_, StageFlags stage_, QRhiTexture *tex_, QRhiSampler *sampler_)
{
Laszlo Agocs's avatar
Laszlo Agocs committed
429
    QRhiShaderResourceBinding b;
430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457
    b.binding = binding_;
    b.stage = stage_;
    b.type = SampledTexture;
    b.stex.tex = tex_;
    b.stex.sampler = sampler_;
    return b;
}

QRhiGraphicsPipeline::QRhiGraphicsPipeline(QRhiImplementation *rhi)
    : QRhiResource(rhi)
{
}

QRhiSwapChain::QRhiSwapChain(QRhiImplementation *rhi)
    : QRhiResource(rhi)
{
}

QRhiCommandBuffer::QRhiCommandBuffer(QRhiImplementation *rhi)
    : QRhiResource(rhi)
{
}

QRhiImplementation::~QRhiImplementation()
{
    qDeleteAll(resUpdPool);
}

458 459 460 461 462
void QRhiImplementation::sendVMemStatsToProfiler()
{
    // nothing to do in the default implementation
}

463
bool QRhiImplementation::isCompressedFormat(QRhiTexture::Format format) const
464 465 466 467 468 469 470
{
    return (format >= QRhiTexture::BC1 && format <= QRhiTexture::BC7)
            || (format >= QRhiTexture::ETC2_RGB8 && format <= QRhiTexture::ETC2_RGBA8)
            || (format >= QRhiTexture::ASTC_4x4 && format <= QRhiTexture::ASTC_12x12);
}

void QRhiImplementation::compressedFormatInfo(QRhiTexture::Format format, const QSize &size,
471 472
                                              quint32 *bpl, quint32 *byteSize,
                                              QSize *blockDim) const
473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585
{
    int xdim = 4;
    int ydim = 4;
    quint32 blockSize = 0;

    switch (format) {
    case QRhiTexture::BC1:
        blockSize = 8;
        break;
    case QRhiTexture::BC2:
        blockSize = 16;
        break;
    case QRhiTexture::BC3:
        blockSize = 16;
        break;
    case QRhiTexture::BC4:
        blockSize = 8;
        break;
    case QRhiTexture::BC5:
        blockSize = 16;
        break;
    case QRhiTexture::BC6H:
        blockSize = 16;
        break;
    case QRhiTexture::BC7:
        blockSize = 16;
        break;

    case QRhiTexture::ETC2_RGB8:
        blockSize = 8;
        break;
    case QRhiTexture::ETC2_RGB8A1:
        blockSize = 8;
        break;
    case QRhiTexture::ETC2_RGBA8:
        blockSize = 16;
        break;

    case QRhiTexture::ASTC_4x4:
        blockSize = 16;
        break;
    case QRhiTexture::ASTC_5x4:
        blockSize = 16;
        xdim = 5;
        break;
    case QRhiTexture::ASTC_5x5:
        blockSize = 16;
        xdim = ydim = 5;
        break;
    case QRhiTexture::ASTC_6x5:
        blockSize = 16;
        xdim = 6;
        ydim = 5;
        break;
    case QRhiTexture::ASTC_6x6:
        blockSize = 16;
        xdim = ydim = 6;
        break;
    case QRhiTexture::ASTC_8x5:
        blockSize = 16;
        xdim = 8;
        ydim = 5;
        break;
    case QRhiTexture::ASTC_8x6:
        blockSize = 16;
        xdim = 8;
        ydim = 6;
        break;
    case QRhiTexture::ASTC_8x8:
        blockSize = 16;
        xdim = ydim = 8;
        break;
    case QRhiTexture::ASTC_10x5:
        blockSize = 16;
        xdim = 10;
        ydim = 5;
        break;
    case QRhiTexture::ASTC_10x6:
        blockSize = 16;
        xdim = 10;
        ydim = 6;
        break;
    case QRhiTexture::ASTC_10x8:
        blockSize = 16;
        xdim = 10;
        ydim = 8;
        break;
    case QRhiTexture::ASTC_10x10:
        blockSize = 16;
        xdim = ydim = 10;
        break;
    case QRhiTexture::ASTC_12x10:
        blockSize = 16;
        xdim = 12;
        ydim = 10;
        break;
    case QRhiTexture::ASTC_12x12:
        blockSize = 16;
        xdim = ydim = 12;
        break;

    default:
        Q_UNREACHABLE();
        break;
    }

    const quint32 wblocks = (size.width() + xdim - 1) / xdim;
    const quint32 hblocks = (size.height() + ydim - 1) / ydim;

    if (bpl)
        *bpl = wblocks * blockSize;
    if (byteSize)
        *byteSize = wblocks * hblocks * blockSize;
586 587
    if (blockDim)
        *blockDim = QSize(xdim, ydim);
588 589 590
}

void QRhiImplementation::textureFormatInfo(QRhiTexture::Format format, const QSize &size,
591
                                           quint32 *bpl, quint32 *byteSize) const
592 593
{
    if (isCompressedFormat(format)) {
594
        compressedFormatInfo(format, size, bpl, byteSize, nullptr);
595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630
        return;
    }

    quint32 bpc = 0;
    switch (format) {
    case QRhiTexture::RGBA8:
        bpc = 4;
        break;
    case QRhiTexture::BGRA8:
        bpc = 4;
        break;
    case QRhiTexture::R8:
        bpc = 1;
        break;
    case QRhiTexture::R16:
        bpc = 2;
        break;

    case QRhiTexture::D16:
        bpc = 2;
        break;
    case QRhiTexture::D32:
        bpc = 4;
        break;

    default:
        Q_UNREACHABLE();
        break;
    }

    if (bpl)
        *bpl = size.width() * bpc;
    if (byteSize)
        *byteSize = size.width() * size.height() * bpc;
}

631
// Approximate because it excludes subresource alignment or multisampling.
632 633 634 635 636 637 638 639 640 641 642 643 644 645 646
quint32 QRhiImplementation::approxByteSizeForTexture(QRhiTexture::Format format, const QSize &baseSize,
                                                     int mipCount, int layerCount)
{
    quint32 approxSize = 0;
    for (int level = 0; level < mipCount; ++level) {
        quint32 byteSize = 0;
        const QSize size(qFloor(float(qMax(1, baseSize.width() >> level))),
                         qFloor(float(qMax(1, baseSize.height() >> level))));
        textureFormatInfo(format, size, nullptr, &byteSize);
        approxSize += byteSize;
    }
    approxSize *= layerCount;
    return approxSize;
}

647 648 649 650 651 652
QRhi::QRhi()
{
}

QRhi::~QRhi()
{
653 654 655 656
    if (d) {
        d->destroy();
        delete d;
    }
657 658
}

659
QRhi *QRhi::create(Implementation impl, QRhiInitParams *params, Flags flags)
660
{
661 662
    QScopedPointer<QRhi> r(new QRhi);

663
    switch (impl) {
Laszlo Agocs's avatar
Laszlo Agocs committed
664 665 666
    case Null:
        r->d = new QRhiNull(params);
        break;
667 668 669
    case Vulkan:
#if QT_CONFIG(vulkan)
        r->d = new QRhiVulkan(params);
670
        break;
671 672 673 674 675
#else
        qWarning("This build of Qt has no Vulkan support");
        break;
#endif
    case OpenGLES2:
676
#ifndef QT_NO_OPENGL
677
        r->d = new QRhiGles2(params);
678
        break;
679 680 681 682
#else
        qWarning("This build of Qt has no OpenGL support");
        break;
#endif
683 684 685
    case D3D11:
#ifdef Q_OS_WIN
        r->d = new QRhiD3D11(params);
686
        break;
687 688 689 690 691 692 693
#else
        qWarning("This platform has no Direct3D 11 support");
        break;
#endif
    case Metal:
#ifdef Q_OS_DARWIN
        r->d = new QRhiMetal(params);
694
        break;
695 696 697 698 699 700 701
#else
        qWarning("This platform has no Metal support");
        break;
#endif
    default:
        break;
    }
702

703 704 705 706 707 708
    if (r->d) {
        if (flags.testFlag(EnableProfiling)) {
            QRhiProfilerPrivate *profD = QRhiProfilerPrivate::get(&r->d->profiler);
            profD->rhi = r.data();
            profD->rhiD = r->d;
        }
709
        r->d->debugMarkers = flags.testFlag(EnableDebugMarkers);
710 711 712
        if (r->d->create(flags))
            return r.take();
    }
713

714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733
    return nullptr;
}

QRhiResourceUpdateBatch::QRhiResourceUpdateBatch(QRhiImplementation *rhi)
    : d(new QRhiResourceUpdateBatchPrivate)
{
    d->q = this;
    d->rhi = rhi;
}

QRhiResourceUpdateBatch::~QRhiResourceUpdateBatch()
{
    delete d;
}

void QRhiResourceUpdateBatch::release()
{
    d->free();
}

734 735 736 737 738
void QRhiResourceUpdateBatch::merge(QRhiResourceUpdateBatch *other)
{
    d->merge(other->d);
}

739 740 741 742 743
void QRhiResourceUpdateBatch::updateDynamicBuffer(QRhiBuffer *buf, int offset, int size, const void *data)
{
    d->dynamicBufferUpdates.append({ buf, offset, size, data });
}

744 745 746 747 748
void QRhiResourceUpdateBatch::uploadStaticBuffer(QRhiBuffer *buf, int offset, int size, const void *data)
{
    d->staticBufferUploads.append({ buf, offset, size, data });
}

749 750
void QRhiResourceUpdateBatch::uploadStaticBuffer(QRhiBuffer *buf, const void *data)
{
751
    d->staticBufferUploads.append({ buf, 0, 0, data });
752 753
}

Laszlo Agocs's avatar
Laszlo Agocs committed
754
void QRhiResourceUpdateBatch::uploadTexture(QRhiTexture *tex, const QRhiTextureUploadDescription &desc)
755 756 757 758 759 760 761 762 763
{
    d->textureUploads.append({ tex, desc });
}

void QRhiResourceUpdateBatch::uploadTexture(QRhiTexture *tex, const QImage &image)
{
    uploadTexture(tex, {{{{{ image }}}}});
}

764 765 766 767 768
void QRhiResourceUpdateBatch::copyTexture(QRhiTexture *dst, QRhiTexture *src, const QRhiTextureCopyDescription &desc)
{
    d->textureCopies.append({ dst, src, desc });
}

769 770 771 772 773
void QRhiResourceUpdateBatch::readBackTexture(const QRhiReadbackDescription &rb, QRhiReadbackResult *result)
{
    d->textureReadbacks.append({ rb, result });
}

774 775
void QRhiResourceUpdateBatch::generateMips(QRhiTexture *tex)
{
Laszlo Agocs's avatar
Laszlo Agocs committed
776
    d->textureMipGens.append(QRhiResourceUpdateBatchPrivate::TextureMipGen(tex));
777 778
}

779 780 781 782 783
void QRhiResourceUpdateBatch::prepareTextureForUse(QRhiTexture *tex, TexturePrepareFlags flags)
{
    d->texturePrepares.append({ tex, flags });
}

784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819
QRhiResourceUpdateBatch *QRhi::nextResourceUpdateBatch()
{
    auto nextFreeBatch = [this]() -> QRhiResourceUpdateBatch * {
        for (int i = 0, ie = d->resUpdPoolMap.count(); i != ie; ++i) {
            if (!d->resUpdPoolMap.testBit(i)) {
                d->resUpdPoolMap.setBit(i);
                QRhiResourceUpdateBatch *u = d->resUpdPool[i];
                QRhiResourceUpdateBatchPrivate::get(u)->poolIndex = i;
                return u;
            }
        }
        return nullptr;
    };

    QRhiResourceUpdateBatch *u = nextFreeBatch();
    if (!u) {
        const int oldSize = d->resUpdPool.count();
        const int newSize = oldSize + 4;
        d->resUpdPool.resize(newSize);
        d->resUpdPoolMap.resize(newSize);
        for (int i = oldSize; i < newSize; ++i)
            d->resUpdPool[i] = new QRhiResourceUpdateBatch(d);
        u = nextFreeBatch();
        Q_ASSERT(u);
    }

    return u;
}

void QRhiResourceUpdateBatchPrivate::free()
{
    Q_ASSERT(poolIndex >= 0 && rhi->resUpdPool[poolIndex] == q);

    dynamicBufferUpdates.clear();
    staticBufferUploads.clear();
    textureUploads.clear();
820
    textureCopies.clear();
821
    textureReadbacks.clear();
822
    textureMipGens.clear();
823
    texturePrepares.clear();
824 825 826 827 828

    rhi->resUpdPoolMap.clearBit(poolIndex);
    poolIndex = -1;
}

829 830 831 832 833
void QRhiResourceUpdateBatchPrivate::merge(QRhiResourceUpdateBatchPrivate *other)
{
    dynamicBufferUpdates += other->dynamicBufferUpdates;
    staticBufferUploads += other->staticBufferUploads;
    textureUploads += other->textureUploads;
834
    textureCopies += other->textureCopies;
835
    textureReadbacks += other->textureReadbacks;
836
    textureMipGens += other->textureMipGens;
837 838 839
    texturePrepares += other->texturePrepares;
}

840 841 842 843 844
void QRhiCommandBuffer::resourceUpdate(QRhiResourceUpdateBatch *resourceUpdates)
{
    rhi->resourceUpdate(this, resourceUpdates);
}

845 846 847 848 849
void QRhiCommandBuffer::beginPass(QRhiRenderTarget *rt,
                                  const QRhiColorClearValue &colorClearValue,
                                  const QRhiDepthStencilClearValue &depthStencilClearValue,
                                  QRhiResourceUpdateBatch *resourceUpdates)
{
850
    rhi->beginPass(this, rt, colorClearValue, depthStencilClearValue, resourceUpdates);
851 852
}

853
void QRhiCommandBuffer::endPass(QRhiResourceUpdateBatch *resourceUpdates)
854
{
855
    rhi->endPass(this, resourceUpdates);
856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903
}

void QRhiCommandBuffer::setGraphicsPipeline(QRhiGraphicsPipeline *ps,
                                            QRhiShaderResourceBindings *srb)
{
    rhi->setGraphicsPipeline(this, ps, srb);
}

void QRhiCommandBuffer::setVertexInput(int startBinding, const QVector<VertexInput> &bindings,
                                       QRhiBuffer *indexBuf, quint32 indexOffset,
                                       IndexFormat indexFormat)
{
    rhi->setVertexInput(this, startBinding, bindings, indexBuf, indexOffset, indexFormat);
}

void QRhiCommandBuffer::setViewport(const QRhiViewport &viewport)
{
    rhi->setViewport(this, viewport);
}

void QRhiCommandBuffer::setScissor(const QRhiScissor &scissor)
{
    rhi->setScissor(this, scissor);
}

void QRhiCommandBuffer::setBlendConstants(const QVector4D &c)
{
    rhi->setBlendConstants(this, c);
}

void QRhiCommandBuffer::setStencilRef(quint32 refValue)
{
    rhi->setStencilRef(this, refValue);
}

void QRhiCommandBuffer::draw(quint32 vertexCount,
                             quint32 instanceCount, quint32 firstVertex, quint32 firstInstance)
{
    rhi->draw(this, vertexCount, instanceCount, firstVertex, firstInstance);
}

void QRhiCommandBuffer::drawIndexed(quint32 indexCount,
                                    quint32 instanceCount, quint32 firstIndex,
                                    qint32 vertexOffset, quint32 firstInstance)
{
    rhi->drawIndexed(this, indexCount, instanceCount, firstIndex, vertexOffset, firstInstance);
}

904 905 906 907 908 909 910 911 912 913 914 915 916 917 918
void QRhiCommandBuffer::debugMarkBegin(const QByteArray &name)
{
    rhi->debugMarkBegin(this, name);
}

void QRhiCommandBuffer::debugMarkEnd()
{
    rhi->debugMarkEnd(this);
}

void QRhiCommandBuffer::debugMarkMsg(const QByteArray &msg)
{
    rhi->debugMarkMsg(this, msg);
}

919 920 921 922 923 924 925 926 927 928 929 930 931
int QRhi::ubufAligned(int v) const
{
    const int byteAlign = ubufAlignment();
    return (v + byteAlign - 1) & ~(byteAlign - 1);
}

int QRhi::mipLevelsForSize(const QSize &size) const
{
    return qCeil(std::log2(qMax(size.width(), size.height()))) + 1;
}

QSize QRhi::sizeForMipLevel(int mipLevel, const QSize &baseLevelSize) const
{
932 933
    const int w = qFloor(float(qMax(1, baseLevelSize.width() >> mipLevel)));
    const int h = qFloor(float(qMax(1, baseLevelSize.height() >> mipLevel)));
934 935 936 937 938 939 940 941 942 943 944 945 946
    return QSize(w, h);
}

bool QRhi::isYUpInFramebuffer() const
{
    return d->isYUpInFramebuffer();
}

QMatrix4x4 QRhi::clipSpaceCorrMatrix() const
{
    return d->clipSpaceCorrMatrix();
}

947
bool QRhi::isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const
948
{
949
    return d->isTextureFormatSupported(format, flags);
950 951
}

952 953 954 955 956
bool QRhi::isFeatureSupported(QRhi::Feature feature) const
{
    return d->isFeatureSupported(feature);
}

957 958 959 960 961
int QRhi::resourceSizeLimit(ResourceSizeLimit limit) const
{
    return d->resourceSizeLimit(limit);
}

962
const QRhiNativeHandles *QRhi::nativeHandles()
963 964 965 966
{
    return d->nativeHandles();
}

967
QRhiProfiler *QRhi::profiler()
968 969 970 971
{
    return &d->profiler;
}

972
QRhiGraphicsPipeline *QRhi::newGraphicsPipeline()
973 974 975 976
{
    return d->createGraphicsPipeline();
}

977
QRhiShaderResourceBindings *QRhi::newShaderResourceBindings()
978 979 980 981
{
    return d->createShaderResourceBindings();
}

982 983 984
QRhiBuffer *QRhi::newBuffer(QRhiBuffer::Type type,
                            QRhiBuffer::UsageFlags usage,
                            int size)
985 986 987 988
{
    return d->createBuffer(type, usage, size);
}

989 990 991
QRhiRenderBuffer *QRhi::newRenderBuffer(QRhiRenderBuffer::Type type,
                                        const QSize &pixelSize,
                                        int sampleCount,
Laszlo Agocs's avatar
Laszlo Agocs committed
992
                                        QRhiRenderBuffer::Flags flags)
993
{
Laszlo Agocs's avatar
Laszlo Agocs committed
994
    return d->createRenderBuffer(type, pixelSize, sampleCount, flags);
995 996
}

997 998
QRhiTexture *QRhi::newTexture(QRhiTexture::Format format,
                              const QSize &pixelSize,
Laszlo Agocs's avatar
Laszlo Agocs committed
999
                              int sampleCount,
1000
                              QRhiTexture::Flags flags)
1001
{
Laszlo Agocs's avatar
Laszlo Agocs committed
1002
    return d->createTexture(format, pixelSize, sampleCount, flags);
1003 1004
}

1005 1006 1007
QRhiSampler *QRhi::newSampler(QRhiSampler::Filter magFilter, QRhiSampler::Filter minFilter,
                              QRhiSampler::Filter mipmapMode,
                              QRhiSampler:: AddressMode u, QRhiSampler::AddressMode v, QRhiSampler::AddressMode w)
1008 1009 1010 1011
{
    return d->createSampler(magFilter, minFilter, mipmapMode, u, v, w);
}

1012 1013
QRhiTextureRenderTarget *QRhi::newTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
                                                      QRhiTextureRenderTarget::Flags flags)
1014 1015 1016 1017
{
    return d->createTextureRenderTarget(desc, flags);
}

1018
QRhiSwapChain *QRhi::newSwapChain()
1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032
{
    return d->createSwapChain();
}

QRhi::FrameOpResult QRhi::beginFrame(QRhiSwapChain *swapChain)
{
    return d->beginFrame(swapChain);
}

QRhi::FrameOpResult QRhi::endFrame(QRhiSwapChain *swapChain)
{
    return d->endFrame(swapChain);
}

1033 1034 1035 1036 1037
QRhi::FrameOpResult QRhi::beginOffscreenFrame(QRhiCommandBuffer **cb)
{
    return d->beginOffscreenFrame(cb);
}

1038
QRhi::FrameOpResult QRhi::endOffscreenFrame()
1039
{
1040 1041 1042 1043 1044 1045
    return d->endOffscreenFrame();
}

QRhi::FrameOpResult QRhi::finish()
{
    return d->finish();
1046 1047
}

1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
QVector<int> QRhi::supportedSampleCounts() const
{
    return d->supportedSampleCounts();
}

int QRhi::ubufAlignment() const
{
    return d->ubufAlignment();
}

QT_END_NAMESPACE