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Diffstat (limited to 'gfx/angle/checkout/src/libANGLE/validationES2.h')
| -rw-r--r-- | gfx/angle/checkout/src/libANGLE/validationES2.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/validationES2.h b/gfx/angle/checkout/src/libANGLE/validationES2.h new file mode 100644 index 0000000000..000a6ae7ad --- /dev/null +++ b/gfx/angle/checkout/src/libANGLE/validationES2.h @@ -0,0 +1,187 @@ +// +// Copyright 2018 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// +// validationES2.h: +// Inlined validation functions for OpenGL ES 2.0 entry points. + +#ifndef LIBANGLE_VALIDATION_ES2_H_ +#define LIBANGLE_VALIDATION_ES2_H_ + +#include "libANGLE/ErrorStrings.h" +#include "libANGLE/validationES.h" +#include "libANGLE/validationES2_autogen.h" + +namespace gl +{ +ANGLE_INLINE bool ValidateDrawArrays(const Context *context, + PrimitiveMode mode, + GLint first, + GLsizei count) +{ + return ValidateDrawArraysCommon(context, mode, first, count, 1); +} + +ANGLE_INLINE bool ValidateUniform2f(const Context *context, + UniformLocation location, + GLfloat x, + GLfloat y) +{ + return ValidateUniform(context, GL_FLOAT_VEC2, location, 1); +} + +ANGLE_INLINE bool ValidateBindBuffer(const Context *context, BufferBinding target, BufferID buffer) +{ + if (!context->isValidBufferBinding(target)) + { + context->validationError(GL_INVALID_ENUM, err::kInvalidBufferTypes); + return false; + } + + if (!context->getState().isBindGeneratesResourceEnabled() && + !context->isBufferGenerated(buffer)) + { + context->validationError(GL_INVALID_OPERATION, err::kObjectNotGenerated); + return false; + } + + return true; +} + +ANGLE_INLINE bool ValidateDrawElements(const Context *context, + PrimitiveMode mode, + GLsizei count, + DrawElementsType type, + const void *indices) +{ + return ValidateDrawElementsCommon(context, mode, count, type, indices, 1); +} + +ANGLE_INLINE bool ValidateVertexAttribPointer(const Context *context, + GLuint index, + GLint size, + VertexAttribType type, + GLboolean normalized, + GLsizei stride, + const void *ptr) +{ + if (!ValidateFloatVertexFormat(context, index, size, type)) + { + return false; + } + + if (stride < 0) + { + context->validationError(GL_INVALID_VALUE, err::kNegativeStride); + return false; + } + + if (context->getClientVersion() >= ES_3_1) + { + const Caps &caps = context->getCaps(); + if (stride > caps.maxVertexAttribStride) + { + context->validationError(GL_INVALID_VALUE, err::kExceedsMaxVertexAttribStride); + return false; + } + + if (index >= static_cast<GLuint>(caps.maxVertexAttribBindings)) + { + context->validationError(GL_INVALID_VALUE, err::kExceedsMaxVertexAttribBindings); + return false; + } + } + + // [OpenGL ES 3.0.2] Section 2.8 page 24: + // An INVALID_OPERATION error is generated when a non-zero vertex array object + // is bound, zero is bound to the ARRAY_BUFFER buffer object binding point, + // and the pointer argument is not NULL. + bool nullBufferAllowed = context->getState().areClientArraysEnabled() && + context->getState().getVertexArray()->id().value == 0; + if (!nullBufferAllowed && context->getState().getTargetBuffer(BufferBinding::Array) == 0 && + ptr != nullptr) + { + context->validationError(GL_INVALID_OPERATION, err::kClientDataInVertexArray); + return false; + } + + if (context->getExtensions().webglCompatibility) + { + // WebGL 1.0 [Section 6.14] Fixed point support + // The WebGL API does not support the GL_FIXED data type. + if (type == VertexAttribType::Fixed) + { + context->validationError(GL_INVALID_ENUM, err::kFixedNotInWebGL); + return false; + } + + if (!ValidateWebGLVertexAttribPointer(context, type, normalized, stride, ptr, false)) + { + return false; + } + } + + return true; +} + +void RecordBindTextureTypeError(const Context *context, TextureType target); + +ANGLE_INLINE bool ValidateBindTexture(const Context *context, TextureType target, TextureID texture) +{ + if (!context->getStateCache().isValidBindTextureType(target)) + { + RecordBindTextureTypeError(context, target); + return false; + } + + if (texture.value == 0) + { + return true; + } + + Texture *textureObject = context->getTexture(texture); + if (textureObject && textureObject->getType() != target) + { + context->validationError(GL_INVALID_OPERATION, err::kTextureTargetMismatch); + return false; + } + + if (!context->getState().isBindGeneratesResourceEnabled() && + !context->isTextureGenerated(texture)) + { + context->validationError(GL_INVALID_OPERATION, err::kObjectNotGenerated); + return false; + } + + return true; +} + +// Validation of all Tex[Sub]Image2D parameters except TextureTarget. +bool ValidateES2TexImageParametersBase(const Context *context, + TextureTarget target, + GLint level, + GLenum internalformat, + bool isCompressed, + bool isSubImage, + GLint xoffset, + GLint yoffset, + GLsizei width, + GLsizei height, + GLint border, + GLenum format, + GLenum type, + GLsizei imageSize, + const void *pixels); + +// Validation of TexStorage*2DEXT +bool ValidateES2TexStorageParametersBase(const Context *context, + TextureType target, + GLsizei levels, + GLenum internalformat, + GLsizei width, + GLsizei height); + +} // namespace gl + +#endif // LIBANGLE_VALIDATION_ES2_H_ |