chromium/third_party/skia/src/gpu/ganesh/gl/GrGLGpu.cpp

/*
 * Copyright 2011 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/gpu/ganesh/gl/GrGLGpu.h"

#include "include/core/SkAlphaType.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkData.h"
#include "include/core/SkRect.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTextureCompressionType.h"
#include "include/core/SkTypes.h"
#include "include/gpu/GpuTypes.h"
#include "include/gpu/ganesh/GrBackendSurface.h"
#include "include/gpu/ganesh/GrContextOptions.h"
#include "include/gpu/ganesh/GrDirectContext.h"
#include "include/gpu/ganesh/GrDriverBugWorkarounds.h"
#include "include/gpu/ganesh/GrTypes.h"
#include "include/gpu/ganesh/gl/GrGLConfig.h"
#include "include/private/base/SkFloatingPoint.h"
#include "include/private/base/SkMath.h"
#include "include/private/base/SkPoint_impl.h"
#include "include/private/base/SkTemplates.h"
#include "include/private/base/SkTo.h"
#include "src/base/SkScopeExit.h"
#include "src/core/SkCompressedDataUtils.h"
#include "src/core/SkLRUCache.h"
#include "src/core/SkMipmap.h"
#include "src/core/SkSLTypeShared.h"
#include "src/core/SkTraceEvent.h"
#include "src/gpu/SkRenderEngineAbortf.h"
#include "src/gpu/Swizzle.h"
#include "src/gpu/ganesh/GrAttachment.h"
#include "src/gpu/ganesh/GrBackendSurfacePriv.h"
#include "src/gpu/ganesh/GrBackendUtils.h"
#include "src/gpu/ganesh/GrBuffer.h"
#include "src/gpu/ganesh/GrDataUtils.h"
#include "src/gpu/ganesh/GrDirectContextPriv.h"
#include "src/gpu/ganesh/GrGpuBuffer.h"
#include "src/gpu/ganesh/GrImageInfo.h"
#include "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/ganesh/GrProgramInfo.h"
#include "src/gpu/ganesh/GrRenderTarget.h"
#include "src/gpu/ganesh/GrSemaphore.h"
#include "src/gpu/ganesh/GrShaderCaps.h"
#include "src/gpu/ganesh/GrShaderVar.h"
#include "src/gpu/ganesh/GrStagingBufferManager.h"
#include "src/gpu/ganesh/GrSurface.h"
#include "src/gpu/ganesh/GrTexture.h"
#include "src/gpu/ganesh/GrUtil.h"
#include "src/gpu/ganesh/GrWindowRectangles.h"
#include "src/gpu/ganesh/gl/GrGLAttachment.h"
#include "src/gpu/ganesh/gl/GrGLBackendSurfacePriv.h"
#include "src/gpu/ganesh/gl/GrGLBuffer.h"
#include "src/gpu/ganesh/gl/GrGLOpsRenderPass.h"
#include "src/gpu/ganesh/gl/GrGLProgram.h"
#include "src/gpu/ganesh/gl/GrGLSemaphore.h"
#include "src/gpu/ganesh/gl/GrGLTextureRenderTarget.h"
#include "src/gpu/ganesh/gl/builders/GrGLShaderStringBuilder.h"
#include "src/sksl/SkSLProgramKind.h"
#include "src/sksl/SkSLProgramSettings.h"
#include "src/sksl/ir/SkSLProgram.h"

#include <algorithm>
#include <cmath>
#include <functional>
#include <memory>
#include <string>
#include <utility>

usingnamespaceskia_private;

#define GL_CALL(X) …
#define GL_CALL_RET(RET, X) …

#define GL_ALLOC_CALL(call) …

//#define USE_NSIGHT

///////////////////////////////////////////////////////////////////////////////

static const GrGLenum gXfermodeEquation2Blend[] = …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;
static_assert …;

static const GrGLenum gXfermodeCoeff2Blend[] = …;

//////////////////////////////////////////////////////////////////////////////

static int gl_target_to_binding_index(GrGLenum target) { … }

GrGpuResource::UniqueID GrGLGpu::TextureUnitBindings::boundID(GrGLenum target) const { … }

bool GrGLGpu::TextureUnitBindings::hasBeenModified(GrGLenum target) const { … }

void GrGLGpu::TextureUnitBindings::setBoundID(GrGLenum target, GrGpuResource::UniqueID resourceID) { … }

void GrGLGpu::TextureUnitBindings::invalidateForScratchUse(GrGLenum target) { … }

void GrGLGpu::TextureUnitBindings::invalidateAllTargets(bool markUnmodified) { … }

//////////////////////////////////////////////////////////////////////////////

static GrGLenum filter_to_gl_mag_filter(GrSamplerState::Filter filter) { … }

static GrGLenum filter_to_gl_min_filter(GrSamplerState::Filter filter,
                                        GrSamplerState::MipmapMode mm) { … }

static inline GrGLenum wrap_mode_to_gl_wrap(GrSamplerState::WrapMode wrapMode,
                                            const GrCaps& caps) { … }

///////////////////////////////////////////////////////////////////////////////

static void cleanup_program(GrGLGpu* gpu,
                            GrGLuint* programID,
                            GrGLuint* vshader,
                            GrGLuint* fshader) { … }

///////////////////////////////////////////////////////////////////////////////

class GrGLGpu::SamplerObjectCache { … };

///////////////////////////////////////////////////////////////////////////////

std::unique_ptr<GrGpu> GrGLGpu::Make(sk_sp<const GrGLInterface> interface,
                                     const GrContextOptions& options,
                                     GrDirectContext* direct) { … }

GrGLGpu::GrGLGpu(std::unique_ptr<GrGLContext> ctx, GrDirectContext* dContext)
        : … { … }

GrGLGpu::~GrGLGpu() { … }

void GrGLGpu::disconnect(DisconnectType type) { … }

GrThreadSafePipelineBuilder* GrGLGpu::pipelineBuilder() { … }

sk_sp<GrThreadSafePipelineBuilder> GrGLGpu::refPipelineBuilder() { … }

///////////////////////////////////////////////////////////////////////////////

void GrGLGpu::onResetContext(uint32_t resetBits) { … }

static bool check_backend_texture(const GrBackendTexture& backendTex,
                                  const GrGLCaps& caps,
                                  GrGLTexture::Desc* desc,
                                  bool skipRectTexSupportCheck = false) { … }

static sk_sp<GrGLTextureParameters> get_gl_texture_params(const GrBackendTexture& backendTex) { … }

sk_sp<GrTexture> GrGLGpu::onWrapBackendTexture(const GrBackendTexture& backendTex,
                                               GrWrapOwnership ownership,
                                               GrWrapCacheable cacheable,
                                               GrIOType ioType) { … }

static bool check_compressed_backend_texture(const GrBackendTexture& backendTex,
                                             const GrGLCaps& caps, GrGLTexture::Desc* desc,
                                             bool skipRectTexSupportCheck = false) { … }

sk_sp<GrTexture> GrGLGpu::onWrapCompressedBackendTexture(const GrBackendTexture& backendTex,
                                                         GrWrapOwnership ownership,
                                                         GrWrapCacheable cacheable) { … }

sk_sp<GrTexture> GrGLGpu::onWrapRenderableBackendTexture(const GrBackendTexture& backendTex,
                                                         int sampleCnt,
                                                         GrWrapOwnership ownership,
                                                         GrWrapCacheable cacheable) { … }

sk_sp<GrRenderTarget> GrGLGpu::onWrapBackendRenderTarget(const GrBackendRenderTarget& backendRT) { … }

static bool check_write_and_transfer_input(GrGLTexture* glTex) { … }

bool GrGLGpu::onWritePixels(GrSurface* surface,
                            SkIRect rect,
                            GrColorType surfaceColorType,
                            GrColorType srcColorType,
                            const GrMipLevel texels[],
                            int mipLevelCount,
                            bool prepForTexSampling) { … }

bool GrGLGpu::onTransferFromBufferToBuffer(sk_sp<GrGpuBuffer> src,
                                           size_t srcOffset,
                                           sk_sp<GrGpuBuffer> dst,
                                           size_t dstOffset,
                                           size_t size) { … }

bool GrGLGpu::onTransferPixelsTo(GrTexture* texture,
                                 SkIRect rect,
                                 GrColorType textureColorType,
                                 GrColorType bufferColorType,
                                 sk_sp<GrGpuBuffer> transferBuffer,
                                 size_t offset,
                                 size_t rowBytes) { … }

bool GrGLGpu::onTransferPixelsFrom(GrSurface* surface,
                                   SkIRect rect,
                                   GrColorType surfaceColorType,
                                   GrColorType dstColorType,
                                   sk_sp<GrGpuBuffer> transferBuffer,
                                   size_t offset) { … }

void GrGLGpu::unbindXferBuffer(GrGpuBufferType type) { … }

bool GrGLGpu::uploadColorTypeTexData(GrGLFormat textureFormat,
                                     GrColorType textureColorType,
                                     SkISize texDims,
                                     GrGLenum target,
                                     SkIRect dstRect,
                                     GrColorType srcColorType,
                                     const GrMipLevel texels[],
                                     int mipLevelCount) { … }

bool GrGLGpu::uploadColorToTex(GrGLFormat textureFormat,
                               SkISize texDims,
                               GrGLenum target,
                               std::array<float, 4> color,
                               uint32_t levelMask) { … }

void GrGLGpu::uploadTexData(SkISize texDims,
                            GrGLenum target,
                            SkIRect dstRect,
                            GrGLenum externalFormat,
                            GrGLenum externalType,
                            size_t bpp,
                            const GrMipLevel texels[],
                            int mipLevelCount) { … }

bool GrGLGpu::uploadCompressedTexData(SkTextureCompressionType compressionType,
                                      GrGLFormat format,
                                      SkISize dimensions,
                                      skgpu::Mipmapped mipmapped,
                                      GrGLenum target,
                                      const void* data,
                                      size_t dataSize) { … }

bool GrGLGpu::renderbufferStorageMSAA(const GrGLContext& ctx, int sampleCount, GrGLenum format,
                                      int width, int height) { … }

bool GrGLGpu::createRenderTargetObjects(const GrGLTexture::Desc& desc,
                                        int sampleCount,
                                        GrGLRenderTarget::IDs* rtIDs) { … }

// good to set a break-point here to know when createTexture fails
static sk_sp<GrTexture> return_null_texture() { … }

static GrGLTextureParameters::SamplerOverriddenState set_initial_texture_params(
        const GrGLInterface* interface,
        const GrGLCaps& caps,
        GrGLenum target) { … }

sk_sp<GrTexture> GrGLGpu::onCreateTexture(SkISize dimensions,
                                          const GrBackendFormat& format,
                                          GrRenderable renderable,
                                          int renderTargetSampleCnt,
                                          skgpu::Budgeted budgeted,
                                          GrProtected isProtected,
                                          int mipLevelCount,
                                          uint32_t levelClearMask,
                                          std::string_view label) { … }

sk_sp<GrTexture> GrGLGpu::onCreateCompressedTexture(SkISize dimensions,
                                                    const GrBackendFormat& format,
                                                    skgpu::Budgeted budgeted,
                                                    skgpu::Mipmapped mipmapped,
                                                    GrProtected isProtected,
                                                    const void* data,
                                                    size_t dataSize) { … }

GrBackendTexture GrGLGpu::onCreateCompressedBackendTexture(SkISize dimensions,
                                                           const GrBackendFormat& format,
                                                           skgpu::Mipmapped mipmapped,
                                                           GrProtected isProtected) { … }

bool GrGLGpu::onUpdateCompressedBackendTexture(const GrBackendTexture& backendTexture,
                                               sk_sp<skgpu::RefCntedCallback> finishedCallback,
                                               const void* data,
                                               size_t length) { … }

int GrGLGpu::getCompatibleStencilIndex(GrGLFormat format) { … }

static void set_khr_debug_label(GrGLGpu* gpu, const GrGLuint id, std::string_view label) { … }

GrGLuint GrGLGpu::createCompressedTexture2D(
        SkISize dimensions,
        SkTextureCompressionType compression,
        GrGLFormat format,
        skgpu::Mipmapped mipmapped,
        GrProtected isProtected,
        GrGLTextureParameters::SamplerOverriddenState* initialState) { … }

GrGLuint GrGLGpu::createTexture(SkISize dimensions,
                                GrGLFormat format,
                                GrGLenum target,
                                GrRenderable renderable,
                                GrGLTextureParameters::SamplerOverriddenState* initialState,
                                int mipLevelCount,
                                GrProtected isProtected,
                                std::string_view label) { … }

sk_sp<GrAttachment> GrGLGpu::makeStencilAttachment(const GrBackendFormat& colorFormat,
                                                   SkISize dimensions, int numStencilSamples) { … }

sk_sp<GrAttachment> GrGLGpu::makeMSAAAttachment(SkISize dimensions, const GrBackendFormat& format,
                                                int numSamples, GrProtected isProtected,
                                                GrMemoryless isMemoryless) { … }

////////////////////////////////////////////////////////////////////////////////

sk_sp<GrGpuBuffer> GrGLGpu::onCreateBuffer(size_t size,
                                           GrGpuBufferType intendedType,
                                           GrAccessPattern accessPattern) { … }

void GrGLGpu::flushScissorTest(GrScissorTest scissorTest) { … }

void GrGLGpu::flushScissorRect(const SkIRect& scissor, int rtHeight, GrSurfaceOrigin rtOrigin) { … }

void GrGLGpu::flushViewport(const SkIRect& viewport, int rtHeight, GrSurfaceOrigin rtOrigin) { … }

void GrGLGpu::flushWindowRectangles(const GrWindowRectsState& windowState,
                                    const GrGLRenderTarget* rt, GrSurfaceOrigin origin) { … }

void GrGLGpu::disableWindowRectangles() { … }

bool GrGLGpu::flushGLState(GrRenderTarget* renderTarget, bool useMultisampleFBO,
                           const GrProgramInfo& programInfo) { … }

void GrGLGpu::flushProgram(sk_sp<GrGLProgram> program) { … }

void GrGLGpu::flushProgram(GrGLuint id) { … }

void GrGLGpu::didDrawTo(GrRenderTarget* rt) { … }

GrGLenum GrGLGpu::bindBuffer(GrGpuBufferType type, const GrBuffer* buffer) { … }

void GrGLGpu::clear(const GrScissorState& scissor,
                    std::array<float, 4> color,
                    GrRenderTarget* target,
                    bool useMultisampleFBO,
                    GrSurfaceOrigin origin) { … }

static bool use_tiled_rendering(const GrGLCaps& glCaps,
                                const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilLoadStore) { … }

void GrGLGpu::beginCommandBuffer(GrGLRenderTarget* rt, bool useMultisampleFBO,
                                 const SkIRect& bounds, GrSurfaceOrigin origin,
                                 const GrOpsRenderPass::LoadAndStoreInfo& colorLoadStore,
                                 const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilLoadStore) { … }

void GrGLGpu::endCommandBuffer(GrGLRenderTarget* rt, bool useMultisampleFBO,
                               const GrOpsRenderPass::LoadAndStoreInfo& colorLoadStore,
                               const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilLoadStore) { … }

void GrGLGpu::clearStencilClip(const GrScissorState& scissor, bool insideStencilMask,
                               GrRenderTarget* target, bool useMultisampleFBO,
                               GrSurfaceOrigin origin) { … }

bool GrGLGpu::readOrTransferPixelsFrom(GrSurface* surface,
                                       SkIRect rect,
                                       GrColorType surfaceColorType,
                                       GrColorType dstColorType,
                                       void* offsetOrPtr,
                                       int rowWidthInPixels) { … }

bool GrGLGpu::onReadPixels(GrSurface* surface,
                           SkIRect rect,
                           GrColorType surfaceColorType,
                           GrColorType dstColorType,
                           void* buffer,
                           size_t rowBytes) { … }

GrOpsRenderPass* GrGLGpu::onGetOpsRenderPass(
        GrRenderTarget* rt,
        bool useMultisampleFBO,
        GrAttachment*,
        GrSurfaceOrigin origin,
        const SkIRect& bounds,
        const GrOpsRenderPass::LoadAndStoreInfo& colorInfo,
        const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilInfo,
        const TArray<GrSurfaceProxy*, true>& sampledProxies,
        GrXferBarrierFlags renderPassXferBarriers) { … }

void GrGLGpu::flushRenderTarget(GrGLRenderTarget* target, bool useMultisampleFBO) { … }

void GrGLGpu::flushFramebufferSRGB(bool enable) { … }

GrGLenum GrGLGpu::prepareToDraw(GrPrimitiveType primitiveType) { … }

void GrGLGpu::onResolveRenderTarget(GrRenderTarget* target, const SkIRect& resolveRect) { … }

void GrGLGpu::resolveRenderFBOs(GrGLRenderTarget* rt, const SkIRect& resolveRect,
                                ResolveDirection resolveDirection,
                                bool invalidateReadBufferAfterBlit) { … }

namespace {


GrGLenum gr_to_gl_stencil_op(GrStencilOp op) { … }

void set_gl_stencil(const GrGLInterface* gl,
                    const GrStencilSettings::Face& face,
                    GrGLenum glFace) { … }
}  // namespace

void GrGLGpu::flushStencil(const GrStencilSettings& stencilSettings, GrSurfaceOrigin origin) { … }

void GrGLGpu::disableStencil() { … }

void GrGLGpu::flushConservativeRasterState(bool enabled) { … }

void GrGLGpu::flushWireframeState(bool enabled) { … }

void GrGLGpu::flushBlendAndColorWrite(const skgpu::BlendInfo& blendInfo,
                                      const skgpu::Swizzle& swizzle) { … }

void GrGLGpu::bindTexture(int unitIdx, GrSamplerState samplerState, const skgpu::Swizzle& swizzle,
                          GrGLTexture* texture) { … }

void GrGLGpu::onResetTextureBindings() { … }

void GrGLGpu::flushColorWrite(bool writeColor) { … }

void GrGLGpu::flushClearColor(std::array<float, 4> color) { … }

void GrGLGpu::setTextureUnit(int unit) { … }

void GrGLGpu::bindTextureToScratchUnit(GrGLenum target, GrGLint textureID) { … }

// Determines whether glBlitFramebuffer could be used between src and dst by onCopySurface.
static inline bool can_blit_framebuffer_for_copy_surface(const GrSurface* dst,
                                                         const GrSurface* src,
                                                         const SkIRect& srcRect,
                                                         const SkIRect& dstRect,
                                                         const GrGLCaps& caps) { … }

static bool rt_has_msaa_render_buffer(const GrGLRenderTarget* rt, const GrGLCaps& glCaps) { … }

static inline bool can_copy_texsubimage(const GrSurface* dst, const GrSurface* src,
                                        const GrGLCaps& caps) { … }

void GrGLGpu::bindSurfaceFBOForPixelOps(GrSurface* surface, int mipLevel, GrGLenum fboTarget,
                                        TempFBOTarget tempFBOTarget) { … }

void GrGLGpu::unbindSurfaceFBOForPixelOps(GrSurface* surface, int mipLevel, GrGLenum fboTarget) { … }

void GrGLGpu::onFBOChanged() { … }

void GrGLGpu::bindFramebuffer(GrGLenum target, GrGLuint fboid) { … }

void GrGLGpu::deleteFramebuffer(GrGLuint fboid) { … }

bool GrGLGpu::onCopySurface(GrSurface* dst, const SkIRect& dstRect,
                            GrSurface* src, const SkIRect& srcRect,
                            GrSamplerState::Filter filter) { … }

bool GrGLGpu::createCopyProgram(GrTexture* srcTex) { … }

bool GrGLGpu::createMipmapProgram(int progIdx) { … }

bool GrGLGpu::copySurfaceAsDraw(GrSurface* dst, bool drawToMultisampleFBO, GrSurface* src,
                                const SkIRect& srcRect, const SkIRect& dstRect,
                                GrSamplerState::Filter filter) { … }

void GrGLGpu::copySurfaceAsCopyTexSubImage(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
                                           const SkIPoint& dstPoint) { … }

bool GrGLGpu::copySurfaceAsBlitFramebuffer(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
                                           const SkIRect& dstRect, GrSamplerState::Filter filter) { … }

bool GrGLGpu::onRegenerateMipMapLevels(GrTexture* texture) { … }

void GrGLGpu::xferBarrier(GrRenderTarget* rt, GrXferBarrierType type) { … }

GrBackendTexture GrGLGpu::onCreateBackendTexture(SkISize dimensions,
                                                 const GrBackendFormat& format,
                                                 GrRenderable renderable,
                                                 skgpu::Mipmapped mipmapped,
                                                 GrProtected isProtected,
                                                 std::string_view label) { … }

bool GrGLGpu::onClearBackendTexture(const GrBackendTexture& backendTexture,
                                    sk_sp<skgpu::RefCntedCallback> finishedCallback,
                                    std::array<float, 4> color) { … }

void GrGLGpu::deleteBackendTexture(const GrBackendTexture& tex) { … }

bool GrGLGpu::compile(const GrProgramDesc& desc, const GrProgramInfo& programInfo) { … }

#if defined(GPU_TEST_UTILS)

bool GrGLGpu::isTestingOnlyBackendTexture(const GrBackendTexture& tex) const {
    SkASSERT(GrBackendApi::kOpenGL == tex.backend());

    GrGLTextureInfo info;
    if (!GrBackendTextures::GetGLTextureInfo(tex, &info)) {
        return false;
    }

    GrGLboolean result;
    GL_CALL_RET(result, IsTexture(info.fID));

    return (GR_GL_TRUE == result);
}

GrBackendRenderTarget GrGLGpu::createTestingOnlyBackendRenderTarget(SkISize dimensions,
                                                                    GrColorType colorType,
                                                                    int sampleCnt,
                                                                    GrProtected isProtected) {
    if (dimensions.width()  > this->caps()->maxRenderTargetSize() ||
        dimensions.height() > this->caps()->maxRenderTargetSize()) {
        return {};
    }
    if (isProtected == GrProtected::kYes && !this->glCaps().supportsProtectedContent()) {
        return {};
    }

    this->handleDirtyContext();
    auto format = this->glCaps().getFormatFromColorType(colorType);
    sampleCnt = this->glCaps().getRenderTargetSampleCount(sampleCnt, format);
    if (!sampleCnt) {
        return {};
    }
    // We make a texture instead of a render target if we're using a
    // "multisampled_render_to_texture" style extension or have a BGRA format that
    // is allowed for textures but not render buffer internal formats.
    bool useTexture = false;
    if (sampleCnt > 1 && !this->glCaps().usesMSAARenderBuffers()) {
        useTexture = true;
    } else if (format == GrGLFormat::kBGRA8 &&
        this->glCaps().getRenderbufferInternalFormat(GrGLFormat::kBGRA8) != GR_GL_BGRA8) {
        // We have a BGRA extension that doesn't support BGRA render buffers. We can use a texture
        // unless we've been asked for MSAA. Note we already checked above for render-to-
        // multisampled-texture style extensions.
        if (sampleCnt > 1) {
            return {};
        }
        useTexture = true;
    }
    int sFormatIdx = this->getCompatibleStencilIndex(format);
    if (sFormatIdx < 0) {
        return {};
    }
    GrGLuint colorID = 0;
    GrGLuint stencilID = 0;
    GrGLFramebufferInfo info;
    info.fFBOID = 0;
    info.fFormat = GrGLFormatToEnum(format);
    info.fProtected = GrProtected(isProtected == GrProtected::kYes ||
                                  this->glCaps().supportsProtectedContent());

    auto deleteIDs = [&](bool saveFBO = false) {
        if (colorID) {
            if (useTexture) {
                GL_CALL(DeleteTextures(1, &colorID));
            } else {
                GL_CALL(DeleteRenderbuffers(1, &colorID));
            }
        }
        if (stencilID) {
            GL_CALL(DeleteRenderbuffers(1, &stencilID));
        }
        if (!saveFBO && info.fFBOID) {
            this->deleteFramebuffer(info.fFBOID);
        }
    };

    if (useTexture) {
        GL_CALL(GenTextures(1, &colorID));
    } else {
        GL_CALL(GenRenderbuffers(1, &colorID));
    }
    GL_CALL(GenRenderbuffers(1, &stencilID));
    if (!stencilID || !colorID) {
        deleteIDs();
        return {};
    }

    GL_CALL(GenFramebuffers(1, &info.fFBOID));
    if (!info.fFBOID) {
        deleteIDs();
        return {};
    }

    this->invalidateBoundRenderTarget();

    this->bindFramebuffer(GR_GL_FRAMEBUFFER, info.fFBOID);
    if (useTexture) {
        GrGLTextureParameters::SamplerOverriddenState initialState;
        colorID = this->createTexture(dimensions, format, GR_GL_TEXTURE_2D, GrRenderable::kYes,
                                      &initialState,
                                      1,
                                      info.fProtected,
                                      /*label=*/"Skia");
        if (!colorID) {
            deleteIDs();
            return {};
        }
        if (sampleCnt == 1) {
            GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
                                         GR_GL_TEXTURE_2D, colorID, 0));
        } else {
            GL_CALL(FramebufferTexture2DMultisample(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
                                                    GR_GL_TEXTURE_2D, colorID, 0, sampleCnt));
        }
    } else {
        GrGLenum renderBufferFormat = this->glCaps().getRenderbufferInternalFormat(format);
        GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, colorID));
        if (sampleCnt == 1) {
            GL_CALL(RenderbufferStorage(GR_GL_RENDERBUFFER, renderBufferFormat, dimensions.width(),
                                        dimensions.height()));
        } else {
            if (!this->renderbufferStorageMSAA(this->glContext(), sampleCnt, renderBufferFormat,
                                               dimensions.width(), dimensions.height())) {
                deleteIDs();
                return {};
            }
        }
        GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
                                        GR_GL_RENDERBUFFER, colorID));
    }
    GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, stencilID));
    auto stencilBufferFormat = this->glCaps().stencilFormats()[sFormatIdx];
    if (sampleCnt == 1) {
        GL_CALL(RenderbufferStorage(GR_GL_RENDERBUFFER, GrGLFormatToEnum(stencilBufferFormat),
                                    dimensions.width(), dimensions.height()));
    } else {
        if (!this->renderbufferStorageMSAA(this->glContext(), sampleCnt,
                                           GrGLFormatToEnum(stencilBufferFormat),
                                           dimensions.width(), dimensions.height())) {
            deleteIDs();
            return {};
        }
    }
    GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_STENCIL_ATTACHMENT, GR_GL_RENDERBUFFER,
                                    stencilID));
    if (GrGLFormatIsPackedDepthStencil(this->glCaps().stencilFormats()[sFormatIdx])) {
        GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_DEPTH_ATTACHMENT,
                                        GR_GL_RENDERBUFFER, stencilID));
    }

    // We don't want to have to recover the renderbuffer/texture IDs later to delete them. OpenGL
    // has this rule that if a renderbuffer/texture is deleted and a FBO other than the current FBO
    // has the RB attached then deletion is delayed. So we unbind the FBO here and delete the
    // renderbuffers/texture.
    this->bindFramebuffer(GR_GL_FRAMEBUFFER, 0);
    deleteIDs(/* saveFBO = */ true);

    this->bindFramebuffer(GR_GL_FRAMEBUFFER, info.fFBOID);
    GrGLenum status;
    GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
    if (GR_GL_FRAMEBUFFER_COMPLETE != status) {
        this->deleteFramebuffer(info.fFBOID);
        return {};
    }

    auto stencilBits = SkToInt(GrGLFormatStencilBits(this->glCaps().stencilFormats()[sFormatIdx]));

    GrBackendRenderTarget beRT = GrBackendRenderTargets::MakeGL(
            dimensions.width(), dimensions.height(), sampleCnt, stencilBits, info);
    SkASSERT(this->caps()->areColorTypeAndFormatCompatible(colorType, beRT.getBackendFormat()));
    return beRT;
}

void GrGLGpu::deleteTestingOnlyBackendRenderTarget(const GrBackendRenderTarget& backendRT) {
    SkASSERT(GrBackendApi::kOpenGL == backendRT.backend());
    GrGLFramebufferInfo info;
    if (GrBackendRenderTargets::GetGLFramebufferInfo(backendRT, &info)) {
        if (info.fFBOID) {
            this->deleteFramebuffer(info.fFBOID);
        }
    }
}
#endif

///////////////////////////////////////////////////////////////////////////////

GrGLAttribArrayState* GrGLGpu::HWVertexArrayState::bindInternalVertexArray(GrGLGpu* gpu,
                                                                           const GrBuffer* ibuf) { … }

void GrGLGpu::addFinishedProc(GrGpuFinishedProc finishedProc,
                              GrGpuFinishedContext finishedContext) { … }

void GrGLGpu::flush(FlushType flushType) { … }

bool GrGLGpu::onSubmitToGpu(GrSyncCpu sync) { … }

void GrGLGpu::willExecute() { … }

void GrGLGpu::submit(GrOpsRenderPass* renderPass) { … }

[[nodiscard]] GrGLsync GrGLGpu::insertFence() { … }

bool GrGLGpu::waitSync(GrGLsync sync, uint64_t timeout, bool flush) { … }

bool GrGLGpu::waitFence(GrGLsync fence) { … }

void GrGLGpu::deleteFence(GrGLsync fence) { … }

[[nodiscard]] std::unique_ptr<GrSemaphore> GrGLGpu::makeSemaphore(bool isOwned) { … }

std::unique_ptr<GrSemaphore> GrGLGpu::wrapBackendSemaphore(const GrBackendSemaphore&,
                                                           GrSemaphoreWrapType,
                                                           GrWrapOwnership) { … }

void GrGLGpu::insertSemaphore(GrSemaphore* semaphore) { … }

void GrGLGpu::waitSemaphore(GrSemaphore* semaphore) { … }

void GrGLGpu::checkFinishProcs() { … }

void GrGLGpu::finishOutstandingGpuWork() { … }

void GrGLGpu::clearErrorsAndCheckForOOM() { … }

GrGLenum GrGLGpu::getErrorAndCheckForOOM() { … }

void GrGLGpu::deleteSync(GrGLsync sync) { … }

std::unique_ptr<GrSemaphore> GrGLGpu::prepareTextureForCrossContextUsage(GrTexture* texture) { … }

int GrGLGpu::TextureToCopyProgramIdx(GrTexture* texture) { … }

#ifdef SK_ENABLE_DUMP_GPU
#include "src/utils/SkJSONWriter.h"
void GrGLGpu::onDumpJSON(SkJSONWriter* writer) const {
    // We are called by the base class, which has already called beginObject(). We choose to nest
    // all of our caps information in a named sub-object.
    writer->beginObject("GL GPU");

    const GrGLubyte* str;
    GL_CALL_RET(str, GetString(GR_GL_VERSION));
    writer->appendCString("GL_VERSION", (const char*)(str));
    GL_CALL_RET(str, GetString(GR_GL_RENDERER));
    writer->appendCString("GL_RENDERER", (const char*)(str));
    GL_CALL_RET(str, GetString(GR_GL_VENDOR));
    writer->appendCString("GL_VENDOR", (const char*)(str));
    GL_CALL_RET(str, GetString(GR_GL_SHADING_LANGUAGE_VERSION));
    writer->appendCString("GL_SHADING_LANGUAGE_VERSION", (const char*)(str));

    writer->appendName("extensions");
    glInterface()->fExtensions.dumpJSON(writer);

    writer->endObject();
}
#endif