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/*
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEBGL)
#include "WebGLSharedObject.h"
#include <wtf/Vector.h>
namespace WebCore {
class WebGLTexture final : public WebGLSharedObject {
public:
enum TextureExtensionFlag {
TextureExtensionsDisabled = 0,
TextureExtensionFloatLinearEnabled = 1 << 0,
TextureExtensionHalfFloatLinearEnabled = 2 << 0
};
virtual ~WebGLTexture();
static Ref<WebGLTexture> create(WebGLRenderingContextBase&);
void setTarget(GCGLenum target, GCGLint maxLevel);
#if !USE(ANGLE)
void setParameteri(GCGLenum pname, GCGLint param);
void setParameterf(GCGLenum pname, GCGLfloat param);
#endif
GCGLenum getTarget() const { return m_target; }
#if !USE(ANGLE)
int getMinFilter() const { return m_minFilter; }
void setLevelInfo(GCGLenum target, GCGLint level, GCGLenum internalFormat, GCGLsizei width, GCGLsizei height, GCGLenum type);
bool canGenerateMipmaps();
// Generate all level information.
void generateMipmapLevelInfo();
GCGLenum getInternalFormat(GCGLenum target, GCGLint level) const;
GCGLenum getType(GCGLenum target, GCGLint level) const;
GCGLsizei getWidth(GCGLenum target, GCGLint level) const;
GCGLsizei getHeight(GCGLenum target, GCGLint level) const;
bool isValid(GCGLenum target, GCGLint level) const;
void markInvalid(GCGLenum target, GCGLint level);
// Whether width/height is NotPowerOfTwo.
static bool isNPOT(GCGLsizei, GCGLsizei);
bool isNPOT() const;
// Determine if texture sampling should always return [0, 0, 0, 1] (OpenGL ES 2.0 Sec 3.8.2).
bool needToUseBlackTexture(TextureExtensionFlag) const;
bool immutable() const { return m_immutable; }
void setImmutable() { m_immutable = true; }
bool isCompressed() const;
void setCompressed();
#endif
bool hasEverBeenBound() const { return object() && m_target; }
static GCGLint computeLevelCount(GCGLsizei width, GCGLsizei height);
private:
WebGLTexture(WebGLRenderingContextBase&);
void deleteObjectImpl(const AbstractLocker&, GraphicsContextGL*, PlatformGLObject) override;
bool isTexture() const override { return true; }
#if !USE(ANGLE)
class LevelInfo {
public:
LevelInfo()
: valid(false)
, internalFormat(0)
, width(0)
, height(0)
, type(0)
{
}
void setInfo(GCGLenum internalFmt, GCGLsizei w, GCGLsizei h, GCGLenum tp)
{
valid = true;
internalFormat = internalFmt;
width = w;
height = h;
type = tp;
}
bool valid;
GCGLenum internalFormat;
GCGLsizei width;
GCGLsizei height;
GCGLenum type;
};
void update();
#endif // !USE(ANGLE)
int mapTargetToIndex(GCGLenum) const;
#if !USE(ANGLE)
const LevelInfo* getLevelInfo(GCGLenum target, GCGLint level) const;
#endif // !USE(ANGLE)
GCGLenum m_target;
#if !USE(ANGLE)
GCGLenum m_minFilter;
GCGLenum m_magFilter;
GCGLenum m_wrapS;
GCGLenum m_wrapT;
Vector<Vector<LevelInfo>> m_info;
bool m_isNPOT;
bool m_isComplete;
bool m_needToUseBlackTexture;
bool m_isCompressed;
bool m_isFloatType;
bool m_isHalfFloatType;
bool m_isForWebGL1;
bool m_immutable { false };
#endif
};
} // namespace WebCore
#endif
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