| // |
| // 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. |
| // |
| |
| // validationES2.cpp: Validation functions for OpenGL ES 2.0 entry point parameters |
| |
| #include "libGLESv2/validationES2.h" |
| #include "libGLESv2/validationES.h" |
| #include "libGLESv2/Context.h" |
| #include "libGLESv2/Texture.h" |
| #include "libGLESv2/Framebuffer.h" |
| #include "libGLESv2/Renderbuffer.h" |
| #include "libGLESv2/formatutils.h" |
| #include "libGLESv2/main.h" |
| #include "libGLESv2/FramebufferAttachment.h" |
| |
| #include "common/mathutil.h" |
| #include "common/utilities.h" |
| |
| namespace gl |
| { |
| |
| static bool ValidateSubImageParams2D(Context *context, bool compressed, GLsizei width, GLsizei height, |
| GLint xoffset, GLint yoffset, GLint level, GLenum format, GLenum type, |
| gl::Texture2D *texture) |
| { |
| if (!texture) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (compressed != texture->isCompressed(level)) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (format != GL_NONE) |
| { |
| if (gl::GetFormatTypeInfo(format, type).internalFormat != texture->getInternalFormat(level)) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| if (compressed) |
| { |
| if ((width % 4 != 0 && width != texture->getWidth(level)) || |
| (height % 4 != 0 && height != texture->getHeight(level))) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| if (xoffset + width > texture->getWidth(level) || |
| yoffset + height > texture->getHeight(level)) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool ValidateSubImageParamsCube(Context *context, bool compressed, GLsizei width, GLsizei height, |
| GLint xoffset, GLint yoffset, GLenum target, GLint level, GLenum format, GLenum type, |
| gl::TextureCubeMap *texture) |
| { |
| if (!texture) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (compressed != texture->isCompressed(target, level)) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (format != GL_NONE) |
| { |
| if (gl::GetFormatTypeInfo(format, type).internalFormat != texture->getInternalFormat(target, level)) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| if (compressed) |
| { |
| if ((width % 4 != 0 && width != texture->getWidth(target, 0)) || |
| (height % 4 != 0 && height != texture->getHeight(target, 0))) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| if (xoffset + width > texture->getWidth(target, level) || |
| yoffset + height > texture->getHeight(target, level)) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES2TexImageParameters(Context *context, GLenum target, GLint level, GLenum internalformat, bool isCompressed, bool isSubImage, |
| GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, |
| GLint border, GLenum format, GLenum type, const GLvoid *pixels) |
| { |
| if (!ValidTexture2DDestinationTarget(context, target)) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (!ValidImageSize(context, target, level, width, height, 1)) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (level < 0 || xoffset < 0 || |
| std::numeric_limits<GLsizei>::max() - xoffset < width || |
| std::numeric_limits<GLsizei>::max() - yoffset < height) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (!isSubImage && !isCompressed && internalformat != format) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| 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; |
| 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 *tex2d = context->getTexture2D(); |
| if (tex2d) |
| { |
| textureCompressed = tex2d->isCompressed(level); |
| textureInternalFormat = tex2d->getInternalFormat(level); |
| textureLevelWidth = tex2d->getWidth(level); |
| textureLevelHeight = tex2d->getHeight(level); |
| texture = tex2d; |
| } |
| |
| if (isSubImage && !ValidateSubImageParams2D(context, isCompressed, width, height, xoffset, yoffset, |
| level, format, type, tex2d)) |
| { |
| return false; |
| } |
| |
| texture = tex2d; |
| } |
| 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) || |
| static_cast<GLuint>(height) > (caps.maxCubeMapTextureSize >> level)) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| gl::TextureCubeMap *texCube = context->getTextureCubeMap(); |
| if (texCube) |
| { |
| textureCompressed = texCube->isCompressed(target, level); |
| textureInternalFormat = texCube->getInternalFormat(target, level); |
| textureLevelWidth = texCube->getWidth(target, level); |
| textureLevelHeight = texCube->getHeight(target, level); |
| texture = texCube; |
| } |
| |
| if (isSubImage && !ValidateSubImageParamsCube(context, isCompressed, width, height, xoffset, yoffset, |
| target, level, format, type, texCube)) |
| { |
| return false; |
| } |
| } |
| break; |
| |
| default: |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (!texture) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (!isSubImage && texture->isImmutable()) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| // Verify zero border |
| if (border != 0) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| GLenum actualInternalFormat = isSubImage ? textureInternalFormat : internalformat; |
| if (isCompressed) |
| { |
| if (!ValidCompressedImageSize(context, actualInternalFormat, width, height)) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| switch (actualInternalFormat) |
| { |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (!context->getExtensions().textureCompressionDXT1) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT1) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT5) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| } |
| else |
| { |
| // validate <type> by itself (used as secondary key below) |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT: |
| case GL_UNSIGNED_INT: |
| case GL_UNSIGNED_INT_24_8_OES: |
| case GL_HALF_FLOAT_OES: |
| case GL_FLOAT: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| // validate <format> + <type> combinations |
| // - invalid <format> -> sets INVALID_ENUM |
| // - invalid <format>+<type> combination -> sets INVALID_OPERATION |
| switch (format) |
| { |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RED: |
| case GL_RG: |
| if (!context->getExtensions().textureRG) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGB: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGBA: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_BGRA_EXT: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_SRGB_EXT: |
| case GL_SRGB_ALPHA_EXT: |
| if (!context->getExtensions().sRGB) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: // error cases for compressed textures are handled below |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| break; |
| case GL_DEPTH_COMPONENT: |
| switch (type) |
| { |
| case GL_UNSIGNED_SHORT: |
| case GL_UNSIGNED_INT: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_DEPTH_STENCIL_OES: |
| switch (type) |
| { |
| case GL_UNSIGNED_INT_24_8_OES: |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| switch (format) |
| { |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (context->getExtensions().textureCompressionDXT1) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (context->getExtensions().textureCompressionDXT3) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (context->getExtensions().textureCompressionDXT5) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_STENCIL_OES: |
| if (!context->getExtensions().depthTextures) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| if (target != GL_TEXTURE_2D) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| // OES_depth_texture supports loading depth data and multiple levels, |
| // but ANGLE_depth_texture does not |
| if (pixels != NULL || level != 0) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (type == GL_FLOAT) |
| { |
| if (!context->getExtensions().textureFloat) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| } |
| else if (type == GL_HALF_FLOAT_OES) |
| { |
| if (!context->getExtensions().textureHalfFloat) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| |
| bool ValidateES2CopyTexImageParameters(Context* context, GLenum target, GLint level, GLenum internalformat, bool isSubImage, |
| GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, |
| GLint border) |
| { |
| GLenum textureInternalFormat = GL_NONE; |
| |
| if (!ValidateCopyTexImageParametersBase(context, target, level, internalformat, isSubImage, |
| xoffset, yoffset, 0, x, y, width, height, border, &textureInternalFormat)) |
| { |
| return false; |
| } |
| |
| gl::Framebuffer *framebuffer = context->getState().getReadFramebuffer(); |
| GLenum colorbufferFormat = framebuffer->getReadColorbuffer()->getInternalFormat(); |
| GLenum textureFormat = gl::GetInternalFormatInfo(textureInternalFormat).format; |
| |
| // [OpenGL ES 2.0.24] table 3.9 |
| if (isSubImage) |
| { |
| switch (textureFormat) |
| { |
| case GL_ALPHA: |
| if (colorbufferFormat != GL_ALPHA8_EXT && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE: |
| if (colorbufferFormat != GL_R8_EXT && |
| colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RED_EXT: |
| if (colorbufferFormat != GL_R8_EXT && |
| colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RG_EXT: |
| if (colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGB: |
| if (colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE_ALPHA: |
| case GL_RGBA: |
| if (colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_STENCIL_OES: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| default: |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| else |
| { |
| switch (internalformat) |
| { |
| case GL_ALPHA: |
| if (colorbufferFormat != GL_ALPHA8_EXT && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE: |
| if (colorbufferFormat != GL_R8_EXT && |
| colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RED_EXT: |
| if (colorbufferFormat != GL_R8_EXT && |
| colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RG_EXT: |
| if (colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGB: |
| if (colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE_ALPHA: |
| case GL_RGBA: |
| if (colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (context->getExtensions().textureCompressionDXT1) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (context->getExtensions().textureCompressionDXT3) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (context->getExtensions().textureCompressionDXT5) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT32_OES: |
| case GL_DEPTH_STENCIL_OES: |
| case GL_DEPTH24_STENCIL8_OES: |
| if (context->getExtensions().depthTextures) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| default: |
| context->recordError(Error(GL_INVALID_ENUM)); |
| 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 ValidateES2TexStorageParameters(Context *context, GLenum target, GLsizei levels, GLenum internalformat, |
| GLsizei width, GLsizei height) |
| { |
| if (target != GL_TEXTURE_2D && target != GL_TEXTURE_CUBE_MAP) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (width < 1 || height < 1 || levels < 1) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (target == GL_TEXTURE_CUBE_MAP && width != height) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (levels != 1 && levels != gl::log2(std::max(width, height)) + 1) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalformat); |
| if (formatInfo.format == GL_NONE || formatInfo.type == GL_NONE) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| 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 (static_cast<GLuint>(width) > caps.maxCubeMapTextureSize || |
| static_cast<GLuint>(height) > caps.maxCubeMapTextureSize) |
| { |
| context->recordError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| break; |
| default: |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (levels != 1 && !context->getExtensions().textureNPOT) |
| { |
| if (!gl::isPow2(width) || !gl::isPow2(height)) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| switch (internalformat) |
| { |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (!context->getExtensions().textureCompressionDXT1) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT3) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT5) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_RGBA32F_EXT: |
| case GL_RGB32F_EXT: |
| case GL_ALPHA32F_EXT: |
| case GL_LUMINANCE32F_EXT: |
| case GL_LUMINANCE_ALPHA32F_EXT: |
| if (!context->getExtensions().textureFloat) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_RGBA16F_EXT: |
| case GL_RGB16F_EXT: |
| case GL_ALPHA16F_EXT: |
| case GL_LUMINANCE16F_EXT: |
| case GL_LUMINANCE_ALPHA16F_EXT: |
| if (!context->getExtensions().textureHalfFloat) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_R8_EXT: |
| case GL_RG8_EXT: |
| case GL_R16F_EXT: |
| case GL_RG16F_EXT: |
| case GL_R32F_EXT: |
| case GL_RG32F_EXT: |
| if (!context->getExtensions().textureRG) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT32_OES: |
| case GL_DEPTH24_STENCIL8_OES: |
| if (!context->getExtensions().depthTextures) |
| { |
| context->recordError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| if (target != GL_TEXTURE_2D) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| // ANGLE_depth_texture only supports 1-level textures |
| if (levels != 1) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| gl::Texture *texture = NULL; |
| switch(target) |
| { |
| case GL_TEXTURE_2D: |
| texture = context->getTexture2D(); |
| break; |
| case GL_TEXTURE_CUBE_MAP: |
| texture = context->getTextureCubeMap(); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| |
| if (!texture || texture->id() == 0) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (texture->isImmutable()) |
| { |
| context->recordError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| // check for combinations of format and type that are valid for ReadPixels |
| bool ValidES2ReadFormatType(Context *context, GLenum format, GLenum type) |
| { |
| switch (format) |
| { |
| case GL_RGBA: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| 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; |
| } |
| |
| } |