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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#ifndef GFX_OGLSHADERCONFIG_H
#define GFX_OGLSHADERCONFIG_H
#include "gfxTypes.h"
#include "ImageTypes.h"
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/gfx/Matrix.h" // for Matrix4x4
#include "mozilla/gfx/Rect.h" // for Rect
#include "mozilla/gfx/Types.h"
#include "nsDebug.h" // for NS_ASSERTION
#include "nsPoint.h" // for nsIntPoint
#include "nsTArray.h" // for nsTArray
#include "mozilla/layers/CompositorTypes.h"
namespace mozilla {
namespace layers {
enum ShaderFeatures {
ENABLE_RENDER_COLOR = 0x01,
ENABLE_TEXTURE_RECT = 0x02,
ENABLE_TEXTURE_EXTERNAL = 0x04,
ENABLE_TEXTURE_YCBCR = 0x08,
ENABLE_TEXTURE_NV12 = 0x10,
ENABLE_TEXTURE_COMPONENT_ALPHA = 0x20,
ENABLE_TEXTURE_NO_ALPHA = 0x40,
ENABLE_TEXTURE_RB_SWAP = 0x80,
ENABLE_OPACITY = 0x100,
ENABLE_BLUR = 0x200,
ENABLE_COLOR_MATRIX = 0x400,
ENABLE_MASK = 0x800,
ENABLE_NO_PREMUL_ALPHA = 0x1000,
ENABLE_DEAA = 0x2000,
ENABLE_DYNAMIC_GEOMETRY = 0x4000,
ENABLE_MASK_TEXTURE_RECT = 0x8000,
ENABLE_TEXTURE_NV12_GA_SWITCH = 0x10000,
};
class KnownUniform {
public:
// this needs to be kept in sync with strings in 'AddUniforms'
enum KnownUniformName {
NotAKnownUniform = -1,
LayerTransform = 0,
LayerTransformInverse,
MaskTransform,
BackdropTransform,
LayerRects,
MatrixProj,
TextureTransform,
TextureRects,
RenderTargetOffset,
LayerOpacity,
Texture,
YTexture,
CbTexture,
CrTexture,
RenderColor,
TexCoordMultiplier,
CbCrTexCoordMultiplier,
SSEdges,
ViewportSize,
VisibleCenter,
YuvColorMatrix,
YuvOffsetVector,
KnownUniformCount
};
KnownUniform() {
mName = NotAKnownUniform;
mNameString = nullptr;
mLocation = -1;
memset(&mValue, 0, sizeof(mValue));
}
bool UpdateUniform(int32_t i1) {
if (mLocation == -1) return false;
if (mValue.i1 != i1) {
mValue.i1 = i1;
return true;
}
return false;
}
bool UpdateUniform(float f1) {
if (mLocation == -1) return false;
if (mValue.f1 != f1) {
mValue.f1 = f1;
return true;
}
return false;
}
bool UpdateUniform(float f1, float f2) {
if (mLocation == -1) return false;
if (mValue.f16v[0] != f1 || mValue.f16v[1] != f2) {
mValue.f16v[0] = f1;
mValue.f16v[1] = f2;
return true;
}
return false;
}
bool UpdateUniform(float f1, float f2, float f3, float f4) {
if (mLocation == -1) return false;
if (mValue.f16v[0] != f1 || mValue.f16v[1] != f2 || mValue.f16v[2] != f3 ||
mValue.f16v[3] != f4) {
mValue.f16v[0] = f1;
mValue.f16v[1] = f2;
mValue.f16v[2] = f3;
mValue.f16v[3] = f4;
return true;
}
return false;
}
bool UpdateUniform(int cnt, const float* fp) {
if (mLocation == -1) return false;
switch (cnt) {
case 1:
case 2:
case 3:
case 4:
case 9:
case 16:
if (memcmp(mValue.f16v, fp, sizeof(float) * cnt) != 0) {
memcpy(mValue.f16v, fp, sizeof(float) * cnt);
return true;
}
return false;
}
MOZ_ASSERT_UNREACHABLE("cnt must be 1 2 3 4 9 or 16");
return false;
}
bool UpdateArrayUniform(int cnt, const float* fp) {
if (mLocation == -1) return false;
if (cnt > 16) {
return false;
}
if (memcmp(mValue.f16v, fp, sizeof(float) * cnt) != 0) {
memcpy(mValue.f16v, fp, sizeof(float) * cnt);
return true;
}
return false;
}
bool UpdateArrayUniform(int cnt, const gfx::Point3D* points) {
if (mLocation == -1) return false;
if (cnt > 4) {
return false;
}
float fp[12];
float* d = fp;
for (int i = 0; i < cnt; i++) {
// Note: Do not want to make assumptions about .x, .y, .z member packing.
// If gfx::Point3D is updated to make this guarantee, SIMD optimizations
// may be possible
*d++ = points[i].x;
*d++ = points[i].y;
*d++ = points[i].z;
}
if (memcmp(mValue.f16v, fp, sizeof(float) * cnt * 3) != 0) {
memcpy(mValue.f16v, fp, sizeof(float) * cnt * 3);
return true;
}
return false;
}
KnownUniformName mName;
const char* mNameString;
int32_t mLocation;
union {
int i1;
float f1;
float f16v[16];
} mValue;
};
class ShaderConfigOGL {
public:
ShaderConfigOGL()
: mFeatures(0),
mMultiplier(1),
mCompositionOp(gfx::CompositionOp::OP_OVER) {}
void SetRenderColor(bool aEnabled);
void SetTextureTarget(GLenum aTarget);
void SetMaskTextureTarget(GLenum aTarget);
void SetRBSwap(bool aEnabled);
void SetNoAlpha(bool aEnabled);
void SetOpacity(bool aEnabled);
void SetYCbCr(bool aEnabled);
void SetNV12(bool aEnabled);
void SetComponentAlpha(bool aEnabled);
void SetColorMatrix(bool aEnabled);
void SetBlur(bool aEnabled);
void SetMask(bool aEnabled);
void SetDEAA(bool aEnabled);
void SetCompositionOp(gfx::CompositionOp aOp);
void SetNoPremultipliedAlpha();
void SetDynamicGeometry(bool aEnabled);
void SetColorMultiplier(uint32_t aMultiplier);
bool operator<(const ShaderConfigOGL& other) const {
return mFeatures < other.mFeatures ||
(mFeatures == other.mFeatures &&
(int)mCompositionOp < (int)other.mCompositionOp) ||
(mFeatures == other.mFeatures &&
(int)mCompositionOp == (int)other.mCompositionOp &&
mMultiplier < other.mMultiplier);
}
public:
void SetFeature(int aBitmask, bool aState) {
if (aState)
mFeatures |= aBitmask;
else
mFeatures &= (~aBitmask);
}
int mFeatures;
uint32_t mMultiplier;
gfx::CompositionOp mCompositionOp;
};
static inline ShaderConfigOGL ShaderConfigFromTargetAndFormat(
GLenum aTarget, gfx::SurfaceFormat aFormat) {
ShaderConfigOGL config;
config.SetTextureTarget(aTarget);
config.SetRBSwap(aFormat == gfx::SurfaceFormat::B8G8R8A8 ||
aFormat == gfx::SurfaceFormat::B8G8R8X8);
config.SetNoAlpha(aFormat == gfx::SurfaceFormat::B8G8R8X8 ||
aFormat == gfx::SurfaceFormat::R8G8B8X8 ||
aFormat == gfx::SurfaceFormat::R5G6B5_UINT16);
return config;
}
} // namespace layers
} // namespace mozilla
#endif // GFX_OGLSHADERCONFIG_H