aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/gpu/gl/GrGLTexture.cpp
blob: f0fafabcba1477c561ee041557615c34a89dfa73 (plain)
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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
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
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
/*
 * 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 "GrGLTexture.h"
#include "GrGLGpu.h"
#include "GrSemaphore.h"
#include "GrShaderCaps.h"
#include "GrTexturePriv.h"
#include "SkTraceMemoryDump.h"

#define GPUGL static_cast<GrGLGpu*>(this->getGpu())
#define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)

static inline GrTextureType texture_type_from_target(GrGLenum target) {
    switch (target) {
        case GR_GL_TEXTURE_2D:
            return GrTextureType::k2D;
        case GR_GL_TEXTURE_RECTANGLE:
            return GrTextureType::kRectangle;
        case GR_GL_TEXTURE_EXTERNAL:
            return GrTextureType::kExternal;
    }
    SK_ABORT("Unexpected texture target");
    return GrTextureType::k2D;
}

static inline GrGLenum target_from_texture_type(GrTextureType type) {
    switch (type) {
        case GrTextureType::k2D:
            return GR_GL_TEXTURE_2D;
        case GrTextureType::kRectangle:
            return GR_GL_TEXTURE_RECTANGLE;
        case GrTextureType::kExternal:
            return GR_GL_TEXTURE_EXTERNAL;
    }
    SK_ABORT("Unexpected texture type");
    return GR_GL_TEXTURE_2D;
}

// This method parallels GrTextureProxy::highestFilterMode
static inline GrSamplerState::Filter highest_filter_mode(const GrGLTexture::IDDesc& idDesc,
                                                         GrPixelConfig config) {
    if (idDesc.fInfo.fTarget == GR_GL_TEXTURE_RECTANGLE ||
        idDesc.fInfo.fTarget == GR_GL_TEXTURE_EXTERNAL) {
        return GrSamplerState::Filter::kBilerp;
    }
    return GrSamplerState::Filter::kMipMap;
}

// Because this class is virtually derived from GrSurface we must explicitly call its constructor.
GrGLTexture::GrGLTexture(GrGLGpu* gpu, SkBudgeted budgeted, const GrSurfaceDesc& desc,
                         const IDDesc& idDesc, GrMipMapsStatus mipMapsStatus)
        : GrSurface(gpu, desc)
        , INHERITED(gpu, desc, texture_type_from_target(idDesc.fInfo.fTarget),
                    highest_filter_mode(idDesc, desc.fConfig), mipMapsStatus) {
    this->init(desc, idDesc);
    this->registerWithCache(budgeted);
}

GrGLTexture::GrGLTexture(GrGLGpu* gpu, Wrapped, const GrSurfaceDesc& desc,
                         GrMipMapsStatus mipMapsStatus, const IDDesc& idDesc)
        : GrSurface(gpu, desc)
        , INHERITED(gpu, desc, texture_type_from_target(idDesc.fInfo.fTarget),
                    highest_filter_mode(idDesc, desc.fConfig), mipMapsStatus) {
    this->init(desc, idDesc);
    this->registerWithCacheWrapped();
}

GrGLTexture::GrGLTexture(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc,
                         GrMipMapsStatus mipMapsStatus)
        : GrSurface(gpu, desc)
        , INHERITED(gpu, desc, texture_type_from_target(idDesc.fInfo.fTarget),
                    highest_filter_mode(idDesc, desc.fConfig), mipMapsStatus) {
    this->init(desc, idDesc);
}

void GrGLTexture::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
    SkASSERT(0 != idDesc.fInfo.fID);
    SkASSERT(0 != idDesc.fInfo.fFormat);
    if (idDesc.fInfo.fTarget == GR_GL_TEXTURE_RECTANGLE ||
        idDesc.fInfo.fTarget == GR_GL_TEXTURE_EXTERNAL) {
        this->setIsGLTextureRectangleOrExternal();
    }
    fTexParams.invalidate();
    fTexParamsTimestamp = GrGpu::kExpiredTimestamp;
    fID = idDesc.fInfo.fID;
    fFormat = idDesc.fInfo.fFormat;
    fTextureIDOwnership = idDesc.fOwnership;
}

GrGLenum GrGLTexture::target() const {
    return target_from_texture_type(this->texturePriv().textureType());
}

void GrGLTexture::onRelease() {
    if (fID) {
        if (GrBackendObjectOwnership::kBorrowed != fTextureIDOwnership) {
            GL_CALL(DeleteTextures(1, &fID));
        }
        fID = 0;
    }
    this->invokeReleaseProc();
    INHERITED::onRelease();
}

void GrGLTexture::onAbandon() {
    fID = 0;
    this->invokeReleaseProc();
    INHERITED::onAbandon();
}

GrBackendTexture GrGLTexture::getBackendTexture() const {
    GrGLTextureInfo info;
    info.fTarget = target_from_texture_type(this->texturePriv().textureType());
    info.fID = fID;
    info.fFormat = fFormat;
    return GrBackendTexture(this->width(), this->height(), this->texturePriv().mipMapped(), info);
}

sk_sp<GrGLTexture> GrGLTexture::MakeWrapped(GrGLGpu* gpu, const GrSurfaceDesc& desc,
                                            GrMipMapsStatus mipMapsStatus, const IDDesc& idDesc) {
    return sk_sp<GrGLTexture>(new GrGLTexture(gpu, kWrapped, desc, mipMapsStatus, idDesc));
}

bool GrGLTexture::onStealBackendTexture(GrBackendTexture* backendTexture,
                                        SkImage::BackendTextureReleaseProc* releaseProc) {
    *backendTexture = this->getBackendTexture();
    // Set the release proc to a no-op function. GL doesn't require any special cleanup.
    *releaseProc = [](GrBackendTexture){};

    // It's important that we only abandon this texture's objects, not subclass objects such as
    // those held by GrGLTextureRenderTarget. Those objects are not being stolen and need to be
    // cleaned up by us.
    this->GrGLTexture::onAbandon();
    return true;
}

void GrGLTexture::dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const {
    // Don't check this->fRefsWrappedObjects, as we might be the base of a GrGLTextureRenderTarget
    // which is multiply inherited from both ourselves and a texture. In these cases, one part
    // (texture, rt) may be wrapped, while the other is owned by Skia.
    bool refsWrappedTextureObjects =
            this->fTextureIDOwnership == GrBackendObjectOwnership::kBorrowed;
    if (refsWrappedTextureObjects && !traceMemoryDump->shouldDumpWrappedObjects()) {
        return;
    }

    // Dump as skia/gpu_resources/resource_#/texture, to avoid conflicts in the
    // GrGLTextureRenderTarget case, where multiple things may dump to the same resource. This
    // has no downside in the normal case.
    SkString resourceName = this->getResourceName();
    resourceName.append("/texture");

    // As we are only dumping our texture memory (not any additional memory tracked by classes
    // which may inherit from us), specifically call GrGLTexture::gpuMemorySize to avoid
    // hitting an override.
    this->dumpMemoryStatisticsPriv(traceMemoryDump, resourceName, "Texture",
                                   GrGLTexture::gpuMemorySize());

    SkString texture_id;
    texture_id.appendU32(this->textureID());
    traceMemoryDump->setMemoryBacking(resourceName.c_str(), "gl_texture", texture_id.c_str());
}