Merge libGLESv2 and libEGL classes into libANGLE.
BUG=angle:733
Change-Id: Ic491c971411fe82c56cd97c5c8325ac14ec218df
Reviewed-on: https://chromium-review.googlesource.com/230830
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/validationES3.cpp b/src/libANGLE/validationES3.cpp
new file mode 100644
index 0000000..c9c9760
--- /dev/null
+++ b/src/libANGLE/validationES3.cpp
@@ -0,0 +1,1312 @@
+//
+// 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"
+
+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();
+
+ gl::Texture *texture = NULL;
+ bool textureCompressed = false;
+ GLenum textureInternalFormat = GL_NONE;
+ GLint textureLevelWidth = 0;
+ GLint textureLevelHeight = 0;
+ GLint textureLevelDepth = 0;
+ 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;
+ }
+
+ gl::Texture2D *texture2d = context->getTexture2D();
+ if (texture2d)
+ {
+ textureCompressed = texture2d->isCompressed(level);
+ textureInternalFormat = texture2d->getInternalFormat(level);
+ textureLevelWidth = texture2d->getWidth(level);
+ textureLevelHeight = texture2d->getHeight(level);
+ textureLevelDepth = 1;
+ texture = texture2d;
+ }
+ }
+ 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;
+ }
+
+ gl::TextureCubeMap *textureCube = context->getTextureCubeMap();
+ if (textureCube)
+ {
+ textureCompressed = textureCube->isCompressed(target, level);
+ textureInternalFormat = textureCube->getInternalFormat(target, level);
+ textureLevelWidth = textureCube->getWidth(target, level);
+ textureLevelHeight = textureCube->getHeight(target, level);
+ textureLevelDepth = 1;
+ texture = textureCube;
+ }
+ }
+ 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;
+ }
+
+ gl::Texture3D *texture3d = context->getTexture3D();
+ if (texture3d)
+ {
+ textureCompressed = texture3d->isCompressed(level);
+ textureInternalFormat = texture3d->getInternalFormat(level);
+ textureLevelWidth = texture3d->getWidth(level);
+ textureLevelHeight = texture3d->getHeight(level);
+ textureLevelDepth = texture3d->getDepth(level);
+ texture = texture3d;
+ }
+ }
+ 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;
+ }
+
+ gl::Texture2DArray *texture2darray = context->getTexture2DArray();
+ if (texture2darray)
+ {
+ textureCompressed = texture2darray->isCompressed(level);
+ textureInternalFormat = texture2darray->getInternalFormat(level);
+ textureLevelWidth = texture2darray->getWidth(level);
+ textureLevelHeight = texture2darray->getHeight(level);
+ textureLevelDepth = texture2darray->getLayers(level);
+ texture = texture2darray;
+ }
+ }
+ break;
+
+ default:
+ context->recordError(Error(GL_INVALID_ENUM));
+ return false;
+ }
+
+ 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 ? textureInternalFormat : 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 != textureCompressed)
+ {
+ context->recordError(Error(GL_INVALID_OPERATION));
+ return false;
+ }
+
+ if (isCompressed)
+ {
+ if ((width % 4 != 0 && width != textureLevelWidth) ||
+ (height % 4 != 0 && height != textureLevelHeight))
+ {
+ 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 (xoffset + width > textureLevelWidth ||
+ yoffset + height > textureLevelHeight ||
+ zoffset + depth > textureLevelDepth)
+ {
+ 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.
+ const FormatType &typeInfo = GetFormatTypeInfo(framebufferInternalFormatInfo.format, framebufferInternalFormatInfo.type);
+ sourceEffectiveFormat = &GetInternalFormatInfo(typeInfo.internalFormat);
+ }
+ }
+ 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->completeness(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();
+
+ gl::Texture *texture = NULL;
+ switch (target)
+ {
+ case GL_TEXTURE_2D:
+ {
+ texture = context->getTexture2D();
+
+ 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:
+ {
+ texture = context->getTextureCubeMap();
+
+ 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:
+ {
+ texture = context->getTexture3D();
+
+ 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:
+ {
+ texture = context->getTexture2DArray();
+
+ 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;
+ }
+
+ 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;
+ }
+
+ gl::Texture2DArray *texArray = static_cast<gl::Texture2DArray *>(tex);
+ if (texArray->isCompressed(level))
+ {
+ context->recordError(Error(GL_INVALID_OPERATION));
+ 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;
+ }
+
+ gl::Texture3D *tex3d = static_cast<gl::Texture3D *>(tex);
+ if (tex3d->isCompressed(level))
+ {
+ context->recordError(Error(GL_INVALID_OPERATION));
+ return false;
+ }
+ }
+ break;
+
+ default:
+ 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->completeness(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);
+}
+
+}