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Commit 848aa7fc by Alexis Hetu Committed by Alexis Hétu
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Pixel unpack buffer validation follow up

2 fixes: - The offset check was removed, as it only affects the pointer and not the size - The modulo check is on the type only and not the entire image size Change-Id: I8c4b64e845b2fae61959d7c62d2c5dc222249c68 Reviewed-on: https://swiftshader-review.googlesource.com/14009Reviewed-by: 's avatarAlexis Hétu <sugoi@google.com> Tested-by: 's avatarAlexis Hétu <sugoi@google.com>
parent b14752c2
Showing with 51 additions and 19 deletions
src/OpenGL/libGLESv2/Context.cpp
......@@ -1585,11 +1585,10 @@ GLsizei Context::getRequiredBufferSize(GLsizei width, GLsizei height, GLsizei de
GLsizei inputWidth = (mState.unpackInfo.rowLength == 0) ? width : mState.unpackInfo.rowLength;
GLsizei inputPitch = egl::ComputePitch(inputWidth, format, type, mState.unpackInfo.alignment);
GLsizei inputHeight = (mState.unpackInfo.imageHeight == 0) ? height : mState.unpackInfo.imageHeight;
size_t offset = egl::ComputePackingOffset(format, type, inputWidth, inputHeight, mState.unpackInfo.alignment, mState.unpackInfo.skipImages, mState.unpackInfo.skipRows, mState.unpackInfo.skipPixels);
return inputPitch * inputHeight * depth + static_cast<GLsizei>(offset);
return inputPitch * inputHeight * depth;
}
GLenum Context::getPixels(const GLvoid **data, GLsizei imageSize) const
GLenum Context::getPixels(const GLvoid **data, GLenum type, GLsizei imageSize) const
{
if(mState.pixelUnpackBuffer)
{
......@@ -1597,7 +1596,7 @@ GLenum Context::getPixels(const GLvoid **data, GLsizei imageSize) const
{
if(mState.pixelUnpackBuffer->isMapped() ||
(mState.pixelUnpackBuffer->size() < static_cast<size_t>(imageSize)) ||
((*data) && (imageSize % static_cast<GLsizei>((ptrdiff_t)(*data)))))
(static_cast<GLsizei>((ptrdiff_t)(*data)) % GetTypeSize(type)))
{
return GL_INVALID_OPERATION;
}
......
src/OpenGL/libGLESv2/Context.h
......@@ -647,7 +647,7 @@ public:
Buffer *getPixelUnpackBuffer() const;
Buffer *getGenericUniformBuffer() const;
GLsizei getRequiredBufferSize(GLsizei width, GLsizei height, GLsizei depth, GLint internalformat, GLenum type) const;
GLenum getPixels(const GLvoid **data, GLsizei imageSize) const;
GLenum getPixels(const GLvoid **data, GLenum type, GLsizei imageSize) const;
bool getBuffer(GLenum target, es2::Buffer **buffer) const;
Program *getCurrentProgram() const;
Texture2D *getTexture2D() const;
......
src/OpenGL/libGLESv2/libGLESv2.cpp
......@@ -876,7 +876,7 @@ void CompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLs
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, imageSize);
GLenum validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -903,7 +903,7 @@ void CompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLs
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
{
GLenum validationError = context->getPixels(&data, imageSize);
GLenum validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -977,7 +977,7 @@ void CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yo
if(validationError == GL_NONE)
{
validationError = context->getPixels(&data, imageSize);
validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
}
if(validationError == GL_NONE)
......@@ -997,7 +997,7 @@ void CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yo
if(validationError == GL_NONE)
{
validationError = context->getPixels(&data, imageSize);
validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
}
if(validationError == GL_NONE)
......@@ -5129,7 +5129,7 @@ void TexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width,
GLenum sizedInternalFormat = GetSizedInternalFormat(format, type);
validationError = context->getPixels(&data, context->getRequiredBufferSize(width, height, 1, sizedInternalFormat, type));
validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, 1, sizedInternalFormat, type));
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -5502,7 +5502,7 @@ void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLs
{
GLenum sizedInternalFormat = GetSizedInternalFormat(format, type);
GLenum validationError = context->getPixels(&data, context->getRequiredBufferSize(width, height, 1, sizedInternalFormat, type));
GLenum validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, 1, sizedInternalFormat, type));
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -6361,7 +6361,7 @@ void TexImage3DOES(GLenum target, GLint level, GLenum internalformat, GLsizei wi
}
GLenum sizedInternalFormat = GetSizedInternalFormat(internalformat, type);
GLenum validationError = context->getPixels(&data, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
GLenum validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -6413,7 +6413,7 @@ void TexSubImage3DOES(GLenum target, GLint level, GLint xoffset, GLint yoffset,
if(validationError == GL_NONE)
{
validationError = context->getPixels(&data, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
}
if(validationError == GL_NONE)
......@@ -6536,7 +6536,7 @@ void CompressedTexImage3DOES(GLenum target, GLint level, GLenum internalformat,
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, imageSize);
GLenum validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
if(validationError != GL_NONE)
{
......@@ -6594,7 +6594,7 @@ void CompressedTexSubImage3DOES(GLenum target, GLint level, GLint xoffset, GLint
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, imageSize);
GLenum validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
if(validationError != GL_NONE)
{
......
src/OpenGL/libGLESv2/libGLESv3.cpp
......@@ -680,7 +680,7 @@ GL_APICALL void GL_APIENTRY glTexImage3D(GLenum target, GLint level, GLint inter
GLenum sizedInternalFormat = GetSizedInternalFormat(internalformat, type);
GLenum validationError = context->getPixels(&data, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
GLenum validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -732,7 +732,7 @@ GL_APICALL void GL_APIENTRY glTexSubImage3D(GLenum target, GLint level, GLint xo
GLenum validationError = ValidateSubImageParams(false, width, height, depth, xoffset, yoffset, zoffset, target, level, sizedInternalFormat, texture);
if(validationError == GL_NONE)
{
GLenum validationError = context->getPixels(&data, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
GLenum validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, depth, sizedInternalFormat, type));
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -870,7 +870,7 @@ GL_APICALL void GL_APIENTRY glCompressedTexImage3D(GLenum target, GLint level, G
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, imageSize);
GLenum validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
if(validationError != GL_NONE)
{
return error(validationError);
......@@ -928,7 +928,7 @@ GL_APICALL void GL_APIENTRY glCompressedTexSubImage3D(GLenum target, GLint level
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, imageSize);
GLenum validationError = context->getPixels(&data, texture->getType(target, level), imageSize);
if(validationError != GL_NONE)
{
return error(validationError);
......
src/OpenGL/libGLESv2/utilities.cpp
......@@ -1045,6 +1045,38 @@ namespace es2
return true;
}
GLsizei GetTypeSize(GLenum type)
{
switch(type)
{
case GL_BYTE:
case GL_UNSIGNED_BYTE:
return 1;
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_5_6_5:
case GL_HALF_FLOAT_OES:
case GL_UNSIGNED_SHORT:
case GL_SHORT:
case GL_HALF_FLOAT:
return 2;
case GL_FLOAT:
case GL_UNSIGNED_INT_24_8:
case GL_UNSIGNED_INT:
case GL_INT:
case GL_UNSIGNED_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_10F_11F_11F_REV:
case GL_UNSIGNED_INT_5_9_9_9_REV:
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
return 4;
default:
UNREACHABLE(type);
break;
}
return 1;
}
bool IsColorRenderable(GLenum internalformat, GLint clientVersion, bool isTexture)
{
switch(internalformat)
......
src/OpenGL/libGLESv2/utilities.h
......@@ -54,6 +54,7 @@ namespace es2
int CubeFaceIndex(GLenum cubeTarget);
bool IsTextureTarget(GLenum target);
bool ValidateTextureFormatType(GLenum format, GLenum type, GLint internalformat, GLint clientVersion);
GLsizei GetTypeSize(GLenum type);
bool IsColorRenderable(GLenum internalformat, GLint clientVersion, bool isTexture);
bool IsDepthRenderable(GLenum internalformat, GLint clientVersion);
......
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