diff options
Diffstat (limited to 'src/3rdparty/angle/src/libANGLE/validationES3.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libANGLE/validationES3.cpp | 1282 |
1 files changed, 1282 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/validationES3.cpp b/src/3rdparty/angle/src/libANGLE/validationES3.cpp new file mode 100644 index 0000000000..e141bb6ece --- /dev/null +++ b/src/3rdparty/angle/src/libANGLE/validationES3.cpp @@ -0,0 +1,1282 @@ +// +// Copyright (c) 2013-2014 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. +// + +// validationES3.cpp: Validation functions for OpenGL ES 3.0 entry point parameters + +#include "libANGLE/validationES3.h" +#include "libANGLE/validationES.h" +#include "libANGLE/Context.h" +#include "libANGLE/Texture.h" +#include "libANGLE/Framebuffer.h" +#include "libANGLE/Renderbuffer.h" +#include "libANGLE/formatutils.h" +#include "libANGLE/FramebufferAttachment.h" + +#include "common/mathutil.h" +#include "common/utilities.h" + +namespace gl +{ + +struct ES3FormatCombination +{ + GLenum internalFormat; + GLenum format; + GLenum type; +}; + +bool operator<(const ES3FormatCombination& a, const ES3FormatCombination& b) +{ + return memcmp(&a, &b, sizeof(ES3FormatCombination)) < 0; +} + +typedef std::set<ES3FormatCombination> ES3FormatCombinationSet; + +static inline void InsertES3FormatCombo(ES3FormatCombinationSet *set, GLenum internalFormat, GLenum format, GLenum type) +{ + ES3FormatCombination info; + info.internalFormat = internalFormat; + info.format = format; + info.type = type; + set->insert(info); +} + +ES3FormatCombinationSet BuildES3FormatSet() +{ + ES3FormatCombinationSet set; + + // Format combinations from ES 3.0.1 spec, table 3.2 + + // | Internal format | Format | Type | + // | | | | + InsertES3FormatCombo(&set, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGBA4, GL_RGBA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGBA8_SNORM, GL_RGBA, GL_BYTE ); + InsertES3FormatCombo(&set, GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ); + InsertES3FormatCombo(&set, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ); + InsertES3FormatCombo(&set, GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ); + InsertES3FormatCombo(&set, GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ); + InsertES3FormatCombo(&set, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_RGBA32F, GL_RGBA, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RGBA16F, GL_RGBA, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE ); + InsertES3FormatCombo(&set, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT ); + InsertES3FormatCombo(&set, GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT ); + InsertES3FormatCombo(&set, GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT ); + InsertES3FormatCombo(&set, GL_RGBA32I, GL_RGBA_INTEGER, GL_INT ); + InsertES3FormatCombo(&set, GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV ); + InsertES3FormatCombo(&set, GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGB565, GL_RGB, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_SRGB8, GL_RGB, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGB8_SNORM, GL_RGB, GL_BYTE ); + InsertES3FormatCombo(&set, GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ); + InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV ); + InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV ); + InsertES3FormatCombo(&set, GL_RGB16F, GL_RGB, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_RGB16F, GL_RGB, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_RGB32F, GL_RGB, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RGB16F, GL_RGB, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RGB8UI, GL_RGB_INTEGER, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGB8I, GL_RGB_INTEGER, GL_BYTE ); + InsertES3FormatCombo(&set, GL_RGB16UI, GL_RGB_INTEGER, GL_UNSIGNED_SHORT ); + InsertES3FormatCombo(&set, GL_RGB16I, GL_RGB_INTEGER, GL_SHORT ); + InsertES3FormatCombo(&set, GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT ); + InsertES3FormatCombo(&set, GL_RGB32I, GL_RGB_INTEGER, GL_INT ); + InsertES3FormatCombo(&set, GL_RG8, GL_RG, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RG8_SNORM, GL_RG, GL_BYTE ); + InsertES3FormatCombo(&set, GL_RG16F, GL_RG, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_RG16F, GL_RG, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_RG32F, GL_RG, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RG16F, GL_RG, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RG8I, GL_RG_INTEGER, GL_BYTE ); + InsertES3FormatCombo(&set, GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT ); + InsertES3FormatCombo(&set, GL_RG16I, GL_RG_INTEGER, GL_SHORT ); + InsertES3FormatCombo(&set, GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT ); + InsertES3FormatCombo(&set, GL_RG32I, GL_RG_INTEGER, GL_INT ); + InsertES3FormatCombo(&set, GL_R8, GL_RED, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_R8_SNORM, GL_RED, GL_BYTE ); + InsertES3FormatCombo(&set, GL_R16F, GL_RED, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_R16F, GL_RED, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_R32F, GL_RED, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_R16F, GL_RED, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_R8I, GL_RED_INTEGER, GL_BYTE ); + InsertES3FormatCombo(&set, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT ); + InsertES3FormatCombo(&set, GL_R16I, GL_RED_INTEGER, GL_SHORT ); + InsertES3FormatCombo(&set, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT ); + InsertES3FormatCombo(&set, GL_R32I, GL_RED_INTEGER, GL_INT ); + + // Unsized formats + InsertES3FormatCombo(&set, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ); + InsertES3FormatCombo(&set, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ); + InsertES3FormatCombo(&set, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ); + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_SRGB_ALPHA_EXT, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_SRGB_EXT, GL_SRGB_EXT, GL_UNSIGNED_BYTE ); + + // Depth stencil formats + InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT ); + InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ); + InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ); + InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8 ); + InsertES3FormatCombo(&set, GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV); + + // From GL_EXT_sRGB + InsertES3FormatCombo(&set, GL_SRGB8_ALPHA8_EXT, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_SRGB8, GL_SRGB_EXT, GL_UNSIGNED_BYTE ); + + // From GL_OES_texture_float + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_FLOAT ); + + // From GL_OES_texture_half_float + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT_OES ); + + // From GL_EXT_texture_format_BGRA8888 + InsertES3FormatCombo(&set, GL_BGRA_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); + + // From GL_EXT_texture_storage + // | Internal format | Format | Type | + // | | | | + InsertES3FormatCombo(&set, GL_ALPHA8_EXT, GL_ALPHA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_LUMINANCE8_EXT, GL_LUMINANCE, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_ALPHA32F_EXT, GL_ALPHA, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE32F_EXT, GL_LUMINANCE, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA32F_EXT, GL_LUMINANCE_ALPHA, GL_FLOAT ); + InsertES3FormatCombo(&set, GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT_OES ); + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ); + InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES ); + + // From GL_EXT_texture_storage and GL_EXT_texture_format_BGRA8888 + InsertES3FormatCombo(&set, GL_BGRA8_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT); + InsertES3FormatCombo(&set, GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); + InsertES3FormatCombo(&set, GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT); + InsertES3FormatCombo(&set, GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); + + // From GL_ANGLE_depth_texture + InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT32_OES, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT_24_8_OES ); + + // Compressed formats + // From ES 3.0.1 spec, table 3.16 + // | Internal format | Format | Type | + // | | | | + InsertES3FormatCombo(&set, GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_SIGNED_R11_EAC, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_RG11_EAC, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_SIGNED_RG11_EAC, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE); + + + // From GL_EXT_texture_compression_dxt1 + InsertES3FormatCombo(&set, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE); + InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE); + + // From GL_ANGLE_texture_compression_dxt3 + InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE); + + // From GL_ANGLE_texture_compression_dxt5 + InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE); + + return set; +} + +static bool ValidateTexImageFormatCombination(gl::Context *context, GLenum internalFormat, GLenum format, GLenum type) +{ + // Note: dEQP 2013.4 expects an INVALID_VALUE error for TexImage3D with an invalid + // internal format. (dEQP-GLES3.functional.negative_api.texture.teximage3d) + const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalFormat); + if (!formatInfo.textureSupport(context->getClientVersion(), context->getExtensions())) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + // The type and format are valid if any supported internal format has that type and format + bool formatSupported = false; + bool typeSupported = false; + + static const ES3FormatCombinationSet es3FormatSet = BuildES3FormatSet(); + for (ES3FormatCombinationSet::const_iterator i = es3FormatSet.begin(); i != es3FormatSet.end(); i++) + { + if (i->format == format || i->type == type) + { + const gl::InternalFormat &info = gl::GetInternalFormatInfo(i->internalFormat); + bool supported = info.textureSupport(context->getClientVersion(), context->getExtensions()); + if (supported && i->type == type) + { + typeSupported = true; + } + if (supported && i->format == format) + { + formatSupported = true; + } + + // Early-out if both type and format are supported now + if (typeSupported && formatSupported) + { + break; + } + } + } + + if (!typeSupported || !formatSupported) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + // Check if this is a valid format combination to load texture data + ES3FormatCombination searchFormat; + searchFormat.internalFormat = internalFormat; + searchFormat.format = format; + searchFormat.type = type; + + if (es3FormatSet.find(searchFormat) == es3FormatSet.end()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + return true; +} + +bool ValidateES3TexImageParameters(Context *context, GLenum target, GLint level, GLenum internalformat, bool isCompressed, bool isSubImage, + GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, + GLint border, GLenum format, GLenum type, const GLvoid *pixels) +{ + if (!ValidTexture2DDestinationTarget(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + // Validate image size + if (!ValidImageSize(context, target, level, width, height, depth)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + // Verify zero border + if (border != 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (xoffset < 0 || yoffset < 0 || zoffset < 0 || + std::numeric_limits<GLsizei>::max() - xoffset < width || + std::numeric_limits<GLsizei>::max() - yoffset < height || + std::numeric_limits<GLsizei>::max() - zoffset < depth) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + const gl::Caps &caps = context->getCaps(); + + switch (target) + { + case GL_TEXTURE_2D: + if (static_cast<GLuint>(width) > (caps.max2DTextureSize >> level) || + static_cast<GLuint>(height) > (caps.max2DTextureSize >> level)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + break; + + case GL_TEXTURE_CUBE_MAP_POSITIVE_X: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: + case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: + case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: + if (!isSubImage && width != height) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (static_cast<GLuint>(width) > (caps.maxCubeMapTextureSize >> level)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + break; + + case GL_TEXTURE_3D: + if (static_cast<GLuint>(width) > (caps.max3DTextureSize >> level) || + static_cast<GLuint>(height) > (caps.max3DTextureSize >> level) || + static_cast<GLuint>(depth) > (caps.max3DTextureSize >> level)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + break; + + case GL_TEXTURE_2D_ARRAY: + if (static_cast<GLuint>(width) > (caps.max2DTextureSize >> level) || + static_cast<GLuint>(height) > (caps.max2DTextureSize >> level) || + static_cast<GLuint>(depth) > (caps.maxArrayTextureLayers >> level)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + break; + + default: + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + gl::Texture *texture = context->getTargetTexture(IsCubeMapTextureTarget(target) ? GL_TEXTURE_CUBE_MAP : target); + if (!texture) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + if (texture->isImmutable() && !isSubImage) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + // Validate texture formats + GLenum actualInternalFormat = isSubImage ? texture->getInternalFormat(target, level) : internalformat; + const gl::InternalFormat &actualFormatInfo = gl::GetInternalFormatInfo(actualInternalFormat); + if (isCompressed) + { + if (!ValidCompressedImageSize(context, actualInternalFormat, width, height)) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + if (!actualFormatInfo.compressed) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + if (target == GL_TEXTURE_3D) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + else + { + if (!ValidateTexImageFormatCombination(context, actualInternalFormat, format, type)) + { + return false; + } + + if (target == GL_TEXTURE_3D && (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL)) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + + // Validate sub image parameters + if (isSubImage) + { + if (isCompressed != actualFormatInfo.compressed) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + if (width == 0 || height == 0 || depth == 0) + { + return false; + } + + if (xoffset < 0 || yoffset < 0 || zoffset < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (std::numeric_limits<GLsizei>::max() - xoffset < width || + std::numeric_limits<GLsizei>::max() - yoffset < height || + std::numeric_limits<GLsizei>::max() - zoffset < depth) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (static_cast<size_t>(xoffset + width) > texture->getWidth(target, level) || + static_cast<size_t>(yoffset + height) > texture->getHeight(target, level) || + static_cast<size_t>(zoffset + depth) > texture->getDepth(target, level)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + + // Check for pixel unpack buffer related API errors + gl::Buffer *pixelUnpackBuffer = context->getState().getTargetBuffer(GL_PIXEL_UNPACK_BUFFER); + if (pixelUnpackBuffer != NULL) + { + // ...the data would be unpacked from the buffer object such that the memory reads required + // would exceed the data store size. + size_t widthSize = static_cast<size_t>(width); + size_t heightSize = static_cast<size_t>(height); + size_t depthSize = static_cast<size_t>(depth); + GLenum sizedFormat = GetSizedInternalFormat(actualInternalFormat, type); + + size_t pixelBytes = static_cast<size_t>(gl::GetInternalFormatInfo(sizedFormat).pixelBytes); + + if (!rx::IsUnsignedMultiplicationSafe(widthSize, heightSize) || + !rx::IsUnsignedMultiplicationSafe(widthSize * heightSize, depthSize) || + !rx::IsUnsignedMultiplicationSafe(widthSize * heightSize * depthSize, pixelBytes)) + { + // Overflow past the end of the buffer + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(sizedFormat); + size_t copyBytes = formatInfo.computeBlockSize(type, width, height); + size_t offset = reinterpret_cast<size_t>(pixels); + + if (!rx::IsUnsignedAdditionSafe(offset, copyBytes) || + ((offset + copyBytes) > static_cast<size_t>(pixelUnpackBuffer->getSize()))) + { + // Overflow past the end of the buffer + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + // ...data is not evenly divisible into the number of bytes needed to store in memory a datum + // indicated by type. + if (!isCompressed) + { + size_t dataBytesPerPixel = static_cast<size_t>(gl::GetTypeInfo(type).bytes); + + if ((offset % dataBytesPerPixel) != 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + + // ...the buffer object's data store is currently mapped. + if (pixelUnpackBuffer->isMapped()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + + return true; +} + +struct EffectiveInternalFormatInfo +{ + GLenum mEffectiveFormat; + GLenum mDestFormat; + GLuint mMinRedBits; + GLuint mMaxRedBits; + GLuint mMinGreenBits; + GLuint mMaxGreenBits; + GLuint mMinBlueBits; + GLuint mMaxBlueBits; + GLuint mMinAlphaBits; + GLuint mMaxAlphaBits; + + EffectiveInternalFormatInfo(GLenum effectiveFormat, GLenum destFormat, GLuint minRedBits, GLuint maxRedBits, + GLuint minGreenBits, GLuint maxGreenBits, GLuint minBlueBits, GLuint maxBlueBits, + GLuint minAlphaBits, GLuint maxAlphaBits) + : mEffectiveFormat(effectiveFormat), mDestFormat(destFormat), mMinRedBits(minRedBits), + mMaxRedBits(maxRedBits), mMinGreenBits(minGreenBits), mMaxGreenBits(maxGreenBits), + mMinBlueBits(minBlueBits), mMaxBlueBits(maxBlueBits), mMinAlphaBits(minAlphaBits), + mMaxAlphaBits(maxAlphaBits) {}; +}; + +typedef std::vector<EffectiveInternalFormatInfo> EffectiveInternalFormatList; + +static EffectiveInternalFormatList BuildSizedEffectiveInternalFormatList() +{ + EffectiveInternalFormatList list; + + // OpenGL ES 3.0.3 Specification, Table 3.17, pg 141: Effective internal format coresponding to destination internal format and + // linear source buffer component sizes. + // | Source channel min/max sizes | + // Effective Internal Format | N/A | R | G | B | A | + list.push_back(EffectiveInternalFormatInfo(GL_ALPHA8_EXT, GL_NONE, 0, 0, 0, 0, 0, 0, 1, 8)); + list.push_back(EffectiveInternalFormatInfo(GL_R8, GL_NONE, 1, 8, 0, 0, 0, 0, 0, 0)); + list.push_back(EffectiveInternalFormatInfo(GL_RG8, GL_NONE, 1, 8, 1, 8, 0, 0, 0, 0)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB565, GL_NONE, 1, 5, 1, 6, 1, 5, 0, 0)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB8, GL_NONE, 6, 8, 7, 8, 6, 8, 0, 0)); + list.push_back(EffectiveInternalFormatInfo(GL_RGBA4, GL_NONE, 1, 4, 1, 4, 1, 4, 1, 4)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB5_A1, GL_NONE, 5, 5, 5, 5, 5, 5, 1, 1)); + list.push_back(EffectiveInternalFormatInfo(GL_RGBA8, GL_NONE, 5, 8, 5, 8, 5, 8, 2, 8)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB10_A2, GL_NONE, 9, 10, 9, 10, 9, 10, 2, 2)); + + return list; +} + +static EffectiveInternalFormatList BuildUnsizedEffectiveInternalFormatList() +{ + EffectiveInternalFormatList list; + + // OpenGL ES 3.0.3 Specification, Table 3.17, pg 141: Effective internal format coresponding to destination internal format and + // linear source buffer component sizes. + // | Source channel min/max sizes | + // Effective Internal Format | Dest Format | R | G | B | A | + list.push_back(EffectiveInternalFormatInfo(GL_ALPHA8_EXT, GL_ALPHA, 0, UINT_MAX, 0, UINT_MAX, 0, UINT_MAX, 1, 8)); + list.push_back(EffectiveInternalFormatInfo(GL_LUMINANCE8_EXT, GL_LUMINANCE, 1, 8, 0, UINT_MAX, 0, UINT_MAX, 0, UINT_MAX)); + list.push_back(EffectiveInternalFormatInfo(GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, 1, 8, 0, UINT_MAX, 0, UINT_MAX, 1, 8)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB565, GL_RGB, 1, 5, 1, 6, 1, 5, 0, UINT_MAX)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB8, GL_RGB, 6, 8, 7, 8, 6, 8, 0, UINT_MAX)); + list.push_back(EffectiveInternalFormatInfo(GL_RGBA4, GL_RGBA, 1, 4, 1, 4, 1, 4, 1, 4)); + list.push_back(EffectiveInternalFormatInfo(GL_RGB5_A1, GL_RGBA, 5, 5, 5, 5, 5, 5, 1, 1)); + list.push_back(EffectiveInternalFormatInfo(GL_RGBA8, GL_RGBA, 5, 8, 5, 8, 5, 8, 5, 8)); + + return list; +} + +static bool GetEffectiveInternalFormat(const InternalFormat &srcFormat, const InternalFormat &destFormat, + GLenum *outEffectiveFormat) +{ + const EffectiveInternalFormatList *list = NULL; + GLenum targetFormat = GL_NONE; + + if (destFormat.pixelBytes > 0) + { + static const EffectiveInternalFormatList sizedList = BuildSizedEffectiveInternalFormatList(); + list = &sizedList; + } + else + { + static const EffectiveInternalFormatList unsizedList = BuildUnsizedEffectiveInternalFormatList(); + list = &unsizedList; + targetFormat = destFormat.format; + } + + for (size_t curFormat = 0; curFormat < list->size(); ++curFormat) + { + const EffectiveInternalFormatInfo& formatInfo = list->at(curFormat); + if ((formatInfo.mDestFormat == targetFormat) && + (formatInfo.mMinRedBits <= srcFormat.redBits && formatInfo.mMaxRedBits >= srcFormat.redBits) && + (formatInfo.mMinGreenBits <= srcFormat.greenBits && formatInfo.mMaxGreenBits >= srcFormat.greenBits) && + (formatInfo.mMinBlueBits <= srcFormat.blueBits && formatInfo.mMaxBlueBits >= srcFormat.blueBits) && + (formatInfo.mMinAlphaBits <= srcFormat.alphaBits && formatInfo.mMaxAlphaBits >= srcFormat.alphaBits)) + { + *outEffectiveFormat = formatInfo.mEffectiveFormat; + return true; + } + } + + return false; +} + +struct CopyConversion +{ + GLenum mTextureFormat; + GLenum mFramebufferFormat; + + CopyConversion(GLenum textureFormat, GLenum framebufferFormat) + : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { } + + bool operator<(const CopyConversion& other) const + { + return memcmp(this, &other, sizeof(CopyConversion)) < 0; + } +}; + +typedef std::set<CopyConversion> CopyConversionSet; + +static CopyConversionSet BuildValidES3CopyTexImageCombinations() +{ + CopyConversionSet set; + + // From ES 3.0.1 spec, table 3.15 + set.insert(CopyConversion(GL_ALPHA, GL_RGBA)); + set.insert(CopyConversion(GL_LUMINANCE, GL_RED)); + set.insert(CopyConversion(GL_LUMINANCE, GL_RG)); + set.insert(CopyConversion(GL_LUMINANCE, GL_RGB)); + set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA)); + set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA)); + set.insert(CopyConversion(GL_RED, GL_RED)); + set.insert(CopyConversion(GL_RED, GL_RG)); + set.insert(CopyConversion(GL_RED, GL_RGB)); + set.insert(CopyConversion(GL_RED, GL_RGBA)); + set.insert(CopyConversion(GL_RG, GL_RG)); + set.insert(CopyConversion(GL_RG, GL_RGB)); + set.insert(CopyConversion(GL_RG, GL_RGBA)); + set.insert(CopyConversion(GL_RGB, GL_RGB)); + set.insert(CopyConversion(GL_RGB, GL_RGBA)); + set.insert(CopyConversion(GL_RGBA, GL_RGBA)); + + // Necessary for ANGLE back-buffers + set.insert(CopyConversion(GL_ALPHA, GL_BGRA_EXT)); + set.insert(CopyConversion(GL_LUMINANCE, GL_BGRA_EXT)); + set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_BGRA_EXT)); + set.insert(CopyConversion(GL_RED, GL_BGRA_EXT)); + set.insert(CopyConversion(GL_RG, GL_BGRA_EXT)); + set.insert(CopyConversion(GL_RGB, GL_BGRA_EXT)); + set.insert(CopyConversion(GL_RGBA, GL_BGRA_EXT)); + + set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER)); + set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER)); + set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER)); + set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER)); + set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER)); + set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER)); + set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER)); + set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER)); + set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER)); + set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER)); + + return set; +} + +static bool IsValidES3CopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint readBufferHandle) +{ + const InternalFormat &textureInternalFormatInfo = GetInternalFormatInfo(textureInternalFormat); + const InternalFormat &framebufferInternalFormatInfo = GetInternalFormatInfo(frameBufferInternalFormat); + + static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations(); + if (conversionSet.find(CopyConversion(textureInternalFormatInfo.format, framebufferInternalFormatInfo.format)) != conversionSet.end()) + { + // Section 3.8.5 of the GLES 3.0.3 spec states that source and destination formats + // must both be signed, unsigned, or fixed point and both source and destinations + // must be either both SRGB or both not SRGB. EXT_color_buffer_float adds allowed + // conversion between fixed and floating point. + + if ((textureInternalFormatInfo.colorEncoding == GL_SRGB) != (framebufferInternalFormatInfo.colorEncoding == GL_SRGB)) + { + return false; + } + + if (((textureInternalFormatInfo.componentType == GL_INT) != (framebufferInternalFormatInfo.componentType == GL_INT )) || + ((textureInternalFormatInfo.componentType == GL_UNSIGNED_INT) != (framebufferInternalFormatInfo.componentType == GL_UNSIGNED_INT))) + { + return false; + } + + if ((textureInternalFormatInfo.componentType == GL_UNSIGNED_NORMALIZED || + textureInternalFormatInfo.componentType == GL_SIGNED_NORMALIZED || + textureInternalFormatInfo.componentType == GL_FLOAT) && + !(framebufferInternalFormatInfo.componentType == GL_UNSIGNED_NORMALIZED || + framebufferInternalFormatInfo.componentType == GL_SIGNED_NORMALIZED || + framebufferInternalFormatInfo.componentType == GL_FLOAT)) + { + return false; + } + + // GLES specification 3.0.3, sec 3.8.5, pg 139-140: + // The effective internal format of the source buffer is determined with the following rules applied in order: + // * If the source buffer is a texture or renderbuffer that was created with a sized internal format then the + // effective internal format is the source buffer's sized internal format. + // * If the source buffer is a texture that was created with an unsized base internal format, then the + // effective internal format is the source image array's effective internal format, as specified by table + // 3.12, which is determined from the <format> and <type> that were used when the source image array was + // specified by TexImage*. + // * Otherwise the effective internal format is determined by the row in table 3.17 or 3.18 where + // Destination Internal Format matches internalformat and where the [source channel sizes] are consistent + // with the values of the source buffer's [channel sizes]. Table 3.17 is used if the + // FRAMEBUFFER_ATTACHMENT_ENCODING is LINEAR and table 3.18 is used if the FRAMEBUFFER_ATTACHMENT_ENCODING + // is SRGB. + const InternalFormat *sourceEffectiveFormat = NULL; + if (readBufferHandle != 0) + { + // Not the default framebuffer, therefore the read buffer must be a user-created texture or renderbuffer + if (framebufferInternalFormatInfo.pixelBytes > 0) + { + sourceEffectiveFormat = &framebufferInternalFormatInfo; + } + else + { + // Renderbuffers cannot be created with an unsized internal format, so this must be an unsized-format + // texture. We can use the same table we use when creating textures to get its effective sized format. + GLenum sizedInternalFormat = GetSizedInternalFormat(framebufferInternalFormatInfo.format, framebufferInternalFormatInfo.type); + sourceEffectiveFormat = &GetInternalFormatInfo(sizedInternalFormat); + } + } + else + { + // The effective internal format must be derived from the source framebuffer's channel sizes. + // This is done in GetEffectiveInternalFormat for linear buffers (table 3.17) + if (framebufferInternalFormatInfo.colorEncoding == GL_LINEAR) + { + GLenum effectiveFormat; + if (GetEffectiveInternalFormat(framebufferInternalFormatInfo, textureInternalFormatInfo, &effectiveFormat)) + { + sourceEffectiveFormat = &GetInternalFormatInfo(effectiveFormat); + } + else + { + return false; + } + } + else if (framebufferInternalFormatInfo.colorEncoding == GL_SRGB) + { + // SRGB buffers can only be copied to sized format destinations according to table 3.18 + if ((textureInternalFormatInfo.pixelBytes > 0) && + (framebufferInternalFormatInfo.redBits >= 1 && framebufferInternalFormatInfo.redBits <= 8) && + (framebufferInternalFormatInfo.greenBits >= 1 && framebufferInternalFormatInfo.greenBits <= 8) && + (framebufferInternalFormatInfo.blueBits >= 1 && framebufferInternalFormatInfo.blueBits <= 8) && + (framebufferInternalFormatInfo.alphaBits >= 1 && framebufferInternalFormatInfo.alphaBits <= 8)) + { + sourceEffectiveFormat = &GetInternalFormatInfo(GL_SRGB8_ALPHA8); + } + else + { + return false; + } + } + else + { + UNREACHABLE(); + return false; + } + } + + if (textureInternalFormatInfo.pixelBytes > 0) + { + // Section 3.8.5 of the GLES 3.0.3 spec, pg 139, requires that, if the destination format is sized, + // component sizes of the source and destination formats must exactly match + if (textureInternalFormatInfo.redBits != sourceEffectiveFormat->redBits || + textureInternalFormatInfo.greenBits != sourceEffectiveFormat->greenBits || + textureInternalFormatInfo.blueBits != sourceEffectiveFormat->blueBits || + textureInternalFormatInfo.alphaBits != sourceEffectiveFormat->alphaBits) + { + return false; + } + } + + + return true; // A conversion function exists, and no rule in the specification has precluded conversion + // between these formats. + } + + return false; +} + +bool ValidateES3CopyTexImageParameters(Context *context, GLenum target, GLint level, GLenum internalformat, + bool isSubImage, GLint xoffset, GLint yoffset, GLint zoffset, + GLint x, GLint y, GLsizei width, GLsizei height, GLint border) +{ + GLenum textureInternalFormat; + if (!ValidateCopyTexImageParametersBase(context, target, level, internalformat, isSubImage, + xoffset, yoffset, zoffset, x, y, width, height, + border, &textureInternalFormat)) + { + return false; + } + + gl::Framebuffer *framebuffer = context->getState().getReadFramebuffer(); + + if (framebuffer->checkStatus(context->getData()) != GL_FRAMEBUFFER_COMPLETE) + { + context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION)); + return false; + } + + if (context->getState().getReadFramebuffer()->id() != 0 && + framebuffer->getSamples(context->getData()) != 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + gl::FramebufferAttachment *source = framebuffer->getReadColorbuffer(); + GLenum colorbufferInternalFormat = source->getInternalFormat(); + + if (isSubImage) + { + if (!IsValidES3CopyTexImageCombination(textureInternalFormat, colorbufferInternalFormat, + context->getState().getReadFramebuffer()->id())) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + else + { + if (!gl::IsValidES3CopyTexImageCombination(internalformat, colorbufferInternalFormat, + context->getState().getReadFramebuffer()->id())) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + + // If width or height is zero, it is a no-op. Return false without setting an error. + return (width > 0 && height > 0); +} + +bool ValidateES3TexStorageParameters(Context *context, GLenum target, GLsizei levels, GLenum internalformat, + GLsizei width, GLsizei height, GLsizei depth) +{ + if (width < 1 || height < 1 || depth < 1 || levels < 1) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (levels > gl::log2(std::max(std::max(width, height), depth)) + 1) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + const gl::Caps &caps = context->getCaps(); + + switch (target) + { + case GL_TEXTURE_2D: + { + if (static_cast<GLuint>(width) > caps.max2DTextureSize || + static_cast<GLuint>(height) > caps.max2DTextureSize) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + break; + + case GL_TEXTURE_CUBE_MAP: + { + if (width != height) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (static_cast<GLuint>(width) > caps.maxCubeMapTextureSize) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + break; + + case GL_TEXTURE_3D: + { + if (static_cast<GLuint>(width) > caps.max3DTextureSize || + static_cast<GLuint>(height) > caps.max3DTextureSize || + static_cast<GLuint>(depth) > caps.max3DTextureSize) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + break; + + case GL_TEXTURE_2D_ARRAY: + { + if (static_cast<GLuint>(width) > caps.max2DTextureSize || + static_cast<GLuint>(height) > caps.max2DTextureSize || + static_cast<GLuint>(depth) > caps.maxArrayTextureLayers) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + break; + + default: + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + gl::Texture *texture = context->getTargetTexture(target); + if (!texture || texture->id() == 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + if (texture->isImmutable()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalformat); + if (!formatInfo.textureSupport(context->getClientVersion(), context->getExtensions())) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + if (formatInfo.pixelBytes == 0) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + return true; +} + +bool ValidateFramebufferTextureLayer(Context *context, GLenum target, GLenum attachment, + GLuint texture, GLint level, GLint layer) +{ + if (context->getClientVersion() < 3) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + if (layer < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (!ValidateFramebufferTextureBase(context, target, attachment, texture, level)) + { + return false; + } + + const gl::Caps &caps = context->getCaps(); + if (texture != 0) + { + gl::Texture *tex = context->getTexture(texture); + ASSERT(tex); + + switch (tex->getTarget()) + { + case GL_TEXTURE_2D_ARRAY: + { + if (level > gl::log2(caps.max2DTextureSize)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (static_cast<GLuint>(layer) >= caps.maxArrayTextureLayers) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + break; + + case GL_TEXTURE_3D: + { + if (level > gl::log2(caps.max3DTextureSize)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + if (static_cast<GLuint>(layer) >= caps.max3DTextureSize) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + } + break; + + default: + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + const gl::InternalFormat &internalFormatInfo = gl::GetInternalFormatInfo(tex->getInternalFormat(tex->getTarget(), level)); + if (internalFormatInfo.compressed) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + + return true; +} + +bool ValidES3ReadFormatType(Context *context, GLenum internalFormat, GLenum format, GLenum type) +{ + const gl::InternalFormat &internalFormatInfo = gl::GetInternalFormatInfo(internalFormat); + + switch (format) + { + case GL_RGBA: + switch (type) + { + case GL_UNSIGNED_BYTE: + break; + case GL_UNSIGNED_INT_2_10_10_10_REV: + if (internalFormat != GL_RGB10_A2) + { + return false; + } + break; + case GL_FLOAT: + if (internalFormatInfo.componentType != GL_FLOAT) + { + return false; + } + break; + default: + return false; + } + break; + case GL_RGBA_INTEGER: + switch (type) + { + case GL_INT: + if (internalFormatInfo.componentType != GL_INT) + { + return false; + } + break; + case GL_UNSIGNED_INT: + if (internalFormatInfo.componentType != GL_UNSIGNED_INT) + { + return false; + } + break; + default: + return false; + } + break; + case GL_BGRA_EXT: + switch (type) + { + case GL_UNSIGNED_BYTE: + case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: + case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: + break; + default: + return false; + } + break; + case GL_RG_EXT: + case GL_RED_EXT: + if (!context->getExtensions().textureRG) + { + return false; + } + switch (type) + { + case GL_UNSIGNED_BYTE: + break; + default: + return false; + } + break; + default: + return false; + } + return true; +} + +bool ValidateES3RenderbufferStorageParameters(gl::Context *context, GLenum target, GLsizei samples, + GLenum internalformat, GLsizei width, GLsizei height) +{ + if (!ValidateRenderbufferStorageParametersBase(context, target, samples, internalformat, width, height)) + { + return false; + } + + //The ES3 spec(section 4.4.2) states that the internal format must be sized and not an integer format if samples is greater than zero. + const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalformat); + if ((formatInfo.componentType == GL_UNSIGNED_INT || formatInfo.componentType == GL_INT) && samples > 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + // The behavior is different than the ANGLE version, which would generate a GL_OUT_OF_MEMORY. + const TextureCaps &formatCaps = context->getTextureCaps().get(internalformat); + if (static_cast<GLuint>(samples) > formatCaps.getMaxSamples()) + { + context->recordError(Error(GL_INVALID_VALUE)); + return false; + } + + return true; +} + +bool ValidateInvalidateFramebufferParameters(Context *context, GLenum target, GLsizei numAttachments, + const GLenum* attachments) +{ + bool defaultFramebuffer = false; + + switch (target) + { + case GL_DRAW_FRAMEBUFFER: + case GL_FRAMEBUFFER: + defaultFramebuffer = context->getState().getDrawFramebuffer()->id() == 0; + break; + case GL_READ_FRAMEBUFFER: + defaultFramebuffer = context->getState().getReadFramebuffer()->id() == 0; + break; + default: + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + for (int i = 0; i < numAttachments; ++i) + { + if (attachments[i] >= GL_COLOR_ATTACHMENT0 && attachments[i] <= GL_COLOR_ATTACHMENT15) + { + if (defaultFramebuffer) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + + if (attachments[i] >= GL_COLOR_ATTACHMENT0 + context->getCaps().maxColorAttachments) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + } + else + { + switch (attachments[i]) + { + case GL_DEPTH_ATTACHMENT: + case GL_STENCIL_ATTACHMENT: + case GL_DEPTH_STENCIL_ATTACHMENT: + if (defaultFramebuffer) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + break; + case GL_COLOR: + case GL_DEPTH: + case GL_STENCIL: + if (!defaultFramebuffer) + { + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + break; + default: + context->recordError(Error(GL_INVALID_ENUM)); + return false; + } + } + } + + return true; +} + +bool ValidateClearBuffer(Context *context) +{ + if (context->getClientVersion() < 3) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + const gl::Framebuffer *fbo = context->getState().getDrawFramebuffer(); + if (!fbo || fbo->checkStatus(context->getData()) != GL_FRAMEBUFFER_COMPLETE) + { + context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION)); + return false; + } + + return true; +} + +bool ValidateGetUniformuiv(Context *context, GLuint program, GLint location, GLuint* params) +{ + if (context->getClientVersion() < 3) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + return ValidateGetUniformBase(context, program, location); +} + +bool ValidateReadBuffer(Context *context, GLenum src) +{ + if (context->getClientVersion() < 3) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return false; + } + + Framebuffer *readFBO = context->getState().getReadFramebuffer(); + + if (readFBO == nullptr) + { + context->recordError(gl::Error(GL_INVALID_OPERATION, "No active read framebuffer.")); + return false; + } + + if (src == GL_NONE) + { + return true; + } + + if (src != GL_BACK && (src < GL_COLOR_ATTACHMENT0 || src > GL_COLOR_ATTACHMENT15)) + { + context->recordError(gl::Error(GL_INVALID_ENUM, "Unknown enum for 'src' in ReadBuffer")); + return false; + } + + if (readFBO->id() == 0) + { + if (src != GL_BACK) + { + const char *errorMsg = "'src' must be GL_NONE or GL_BACK when reading from the default framebuffer."; + context->recordError(gl::Error(GL_INVALID_OPERATION, errorMsg)); + return false; + } + } + else + { + GLuint drawBuffer = static_cast<GLuint>(src - GL_COLOR_ATTACHMENT0); + + if (drawBuffer >= context->getCaps().maxDrawBuffers) + { + const char *errorMsg = "'src' is greater than MAX_DRAW_BUFFERS."; + context->recordError(gl::Error(GL_INVALID_OPERATION, errorMsg)); + return false; + } + } + + return true; +} + +} |