| #include "precompiled.h" |
| // |
| // Copyright (c) 2013 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 "libGLESv2/validationES3.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 "common/mathutil.h" |
| |
| namespace gl |
| { |
| |
| static bool validImageSize(const gl::Context *context, GLint level, GLsizei width, GLsizei height, GLsizei depth) |
| { |
| if (level < 0 || width < 0 || height < 0 || depth < 0) |
| { |
| return false; |
| } |
| |
| if (context->supportsNonPower2Texture()) |
| { |
| return true; |
| } |
| |
| if (level == 0) |
| { |
| return true; |
| } |
| |
| if (gl::isPow2(width) && gl::isPow2(height) && gl::isPow2(depth)) |
| { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static bool validCompressedImageSize(GLsizei width, GLsizei height) |
| { |
| if (width != 1 && width != 2 && width % 4 != 0) |
| { |
| return false; |
| } |
| |
| if (height != 1 && height != 2 && height % 4 != 0) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES3TexImageParameters(gl::Context *context, GLenum target, GLint level, GLint internalformat, bool isCompressed, bool isSubImage, |
| GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, |
| GLint border, GLenum format, GLenum type) |
| { |
| // Validate image size |
| if (!validImageSize(context, level, width, height, depth)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (isCompressed && !validCompressedImageSize(width, height)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| // Verify zero border |
| if (border != 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| // Validate dimensions based on Context limits and validate the texture |
| if (level > context->getMaximumTextureLevel()) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| 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 (width > (context->getMaximum2DTextureDimension() >> level) || |
| height > (context->getMaximum2DTextureDimension() >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, 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) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (width > (context->getMaximumCubeTextureDimension() >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, 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 (width > (context->getMaximum3DTextureDimension() >> level) || |
| height > (context->getMaximum3DTextureDimension() >> level) || |
| depth > (context->getMaximum3DTextureDimension() >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, 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 (width > (context->getMaximum2DTextureDimension() >> level) || |
| height > (context->getMaximum2DTextureDimension() >> level) || |
| depth > (context->getMaximum2DArrayTextureLayers() >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, 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->getDepth(level); |
| texture = texture2darray; |
| } |
| } |
| break; |
| |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!texture) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (texture->isImmutable() && !isSubImage) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| // Validate texture formats |
| GLenum actualInternalFormat = isSubImage ? textureInternalFormat : internalformat; |
| if (isCompressed) |
| { |
| if (!gl::IsFormatCompressed(actualInternalFormat, context->getClientVersion())) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (target == GL_TEXTURE_3D) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| else |
| { |
| if (!gl::IsValidInternalFormat(actualInternalFormat, context) || |
| !gl::IsValidFormat(format, context->getClientVersion()) || |
| !gl::IsValidType(type, context->getClientVersion())) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!gl::IsValidFormatCombination(actualInternalFormat, format, type, context->getClientVersion())) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (target == GL_TEXTURE_3D && (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| // Validate sub image parameters |
| if (isSubImage) |
| { |
| if (isCompressed != textureCompressed) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (format != GL_NONE) |
| { |
| GLenum internalformat = gl::GetSizedInternalFormat(format, type, context->getClientVersion()); |
| if (internalformat != textureInternalFormat) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| if (isCompressed) |
| { |
| if ((width % 4 != 0 && width != textureLevelWidth) || |
| (height % 4 != 0 && height != textureLevelHeight)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| if (width == 0 || height == 0 || depth == 0) |
| { |
| return false; |
| } |
| |
| if (xoffset < 0 || yoffset < 0 || zoffset < 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (std::numeric_limits<GLsizei>::max() - xoffset < width || |
| std::numeric_limits<GLsizei>::max() - yoffset < height || |
| std::numeric_limits<GLsizei>::max() - zoffset < depth) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (xoffset + width > textureLevelWidth || |
| yoffset + height > textureLevelHeight || |
| zoffset + depth > textureLevelDepth) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES3CopyTexImageParameters(gl::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) |
| { |
| if (level < 0 || xoffset < 0 || yoffset < 0 || zoffset < 0 || width < 0 || height < 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (std::numeric_limits<GLsizei>::max() - xoffset < width || std::numeric_limits<GLsizei>::max() - yoffset < height) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (width == 0 || height == 0) |
| { |
| return false; |
| } |
| |
| if (border != 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (level > context->getMaximumTextureLevel()) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Framebuffer *framebuffer = context->getReadFramebuffer(); |
| |
| if (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE) |
| { |
| return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION, false); |
| } |
| |
| if (context->getReadFramebufferHandle() != 0 && framebuffer->getSamples() != 0) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| gl::Renderbuffer *source = framebuffer->getReadColorbuffer(); |
| GLenum colorbufferInternalFormat = source->getInternalFormat(); |
| gl::Texture *texture = NULL; |
| GLenum textureInternalFormat = GL_NONE; |
| bool textureCompressed = false; |
| bool textureIsDepth = false; |
| GLint textureLevelWidth = 0; |
| GLint textureLevelHeight = 0; |
| GLint textureLevelDepth = 0; |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| { |
| gl::Texture2D *texture2d = context->getTexture2D(); |
| if (texture2d) |
| { |
| textureInternalFormat = texture2d->getInternalFormat(level); |
| textureCompressed = texture2d->isCompressed(level); |
| textureIsDepth = texture2d->isDepth(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: |
| { |
| gl::TextureCubeMap *textureCube = context->getTextureCubeMap(); |
| if (textureCube) |
| { |
| textureInternalFormat = textureCube->getInternalFormat(target, level); |
| textureCompressed = textureCube->isCompressed(target, level); |
| textureIsDepth = false; |
| textureLevelWidth = textureCube->getWidth(target, level); |
| textureLevelHeight = textureCube->getHeight(target, level); |
| textureLevelDepth = 1; |
| texture = textureCube; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| gl::Texture2DArray *texture2dArray = context->getTexture2DArray(); |
| if (texture2dArray) |
| { |
| textureInternalFormat = texture2dArray->getInternalFormat(level); |
| textureCompressed = texture2dArray->isCompressed(level); |
| textureIsDepth = texture2dArray->isDepth(level); |
| textureLevelWidth = texture2dArray->getWidth(level); |
| textureLevelHeight = texture2dArray->getHeight(level); |
| textureLevelDepth = texture2dArray->getDepth(level); |
| texture = texture2dArray; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_3D: |
| { |
| gl::Texture3D *texture3d = context->getTexture3D(); |
| if (texture3d) |
| { |
| textureInternalFormat = texture3d->getInternalFormat(level); |
| textureCompressed = texture3d->isCompressed(level); |
| textureIsDepth = texture3d->isDepth(level); |
| textureLevelWidth = texture3d->getWidth(level); |
| textureLevelHeight = texture3d->getHeight(level); |
| textureLevelDepth = texture3d->getDepth(level); |
| texture = texture3d; |
| } |
| } |
| break; |
| |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!texture) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (texture->isImmutable() && !isSubImage) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (textureIsDepth) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (textureCompressed) |
| { |
| if ((width % 4 != 0 && width != textureLevelWidth) || |
| (height % 4 != 0 && height != textureLevelHeight)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| if (isSubImage) |
| { |
| if (xoffset + width > textureLevelWidth || |
| yoffset + height > textureLevelHeight || |
| zoffset >= textureLevelDepth) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (!gl::IsValidCopyTexImageCombination(textureInternalFormat, colorbufferInternalFormat, |
| context->getClientVersion())) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES3TexStorageParameters(gl::Context *context, GLenum target, GLsizei levels, GLenum internalformat, |
| GLsizei width, GLsizei height, GLsizei depth) |
| { |
| if (width < 1 || height < 1 || depth < 1 || levels < 1) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (levels > gl::log2(std::max(std::max(width, height), depth)) + 1) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| gl::Texture *texture = NULL; |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| { |
| texture = context->getTexture2D(); |
| |
| if (width > (context->getMaximum2DTextureDimension()) || |
| height > (context->getMaximum2DTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, 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: |
| { |
| texture = context->getTextureCubeMap(); |
| |
| if (width != height) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (width > (context->getMaximumCubeTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_3D: |
| { |
| texture = context->getTexture3D(); |
| |
| if (width > (context->getMaximum3DTextureDimension()) || |
| height > (context->getMaximum3DTextureDimension()) || |
| depth > (context->getMaximum3DTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| texture = context->getTexture2DArray(); |
| |
| if (width > (context->getMaximum2DTextureDimension()) || |
| height > (context->getMaximum2DTextureDimension()) || |
| depth > (context->getMaximum2DArrayTextureLayers())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!texture || texture->id() == 0) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (texture->isImmutable()) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (!gl::IsValidInternalFormat(internalformat, context)) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!gl::IsSizedInternalFormat(internalformat, context->getClientVersion())) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES3FramebufferTextureParameters(gl::Context *context, GLenum target, GLenum attachment, |
| GLenum textarget, GLuint texture, GLint level, GLint layer, |
| bool layerCall) |
| { |
| if (target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (attachment >= GL_COLOR_ATTACHMENT0 && attachment <= GL_COLOR_ATTACHMENT15) |
| { |
| const unsigned int colorAttachment = (attachment - GL_COLOR_ATTACHMENT0); |
| if (colorAttachment >= context->getMaximumRenderTargets()) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| else |
| { |
| switch (attachment) |
| { |
| case GL_DEPTH_ATTACHMENT: |
| case GL_STENCIL_ATTACHMENT: |
| case GL_DEPTH_STENCIL_ATTACHMENT: |
| break; |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| } |
| |
| if (texture != 0) |
| { |
| gl::Texture *tex = context->getTexture(texture); |
| |
| if (tex == NULL) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (level < 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (layer < 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (!layerCall) |
| { |
| switch (textarget) |
| { |
| case GL_TEXTURE_2D: |
| { |
| if (level > gl::log2(context->getMaximum2DTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| if (tex->getTarget() != GL_TEXTURE_2D) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| gl::Texture2D *tex2d = static_cast<gl::Texture2D *>(tex); |
| if (tex2d->isCompressed(level)) |
| { |
| return gl::error(GL_INVALID_OPERATION, 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 (level > gl::log2(context->getMaximumCubeTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| if (tex->getTarget() != GL_TEXTURE_CUBE_MAP) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| gl::TextureCubeMap *texcube = static_cast<gl::TextureCubeMap *>(tex); |
| if (texcube->isCompressed(textarget, level)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| break; |
| } |
| |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| } |
| else |
| { |
| switch (tex->getTarget()) |
| { |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| if (level > gl::log2(context->getMaximum2DTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (layer >= context->getMaximum2DArrayTextureLayers()) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture2DArray *texArray = static_cast<gl::Texture2DArray *>(tex); |
| if (texArray->isCompressed(level)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| break; |
| } |
| |
| case GL_TEXTURE_3D: |
| { |
| if (level > gl::log2(context->getMaximum3DTextureDimension())) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (layer >= context->getMaximum3DTextureDimension()) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture3D *tex3d = static_cast<gl::Texture3D *>(tex); |
| if (tex3d->isCompressed(level)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| break; |
| } |
| |
| default: |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| } |
| |
| gl::Framebuffer *framebuffer = NULL; |
| GLuint framebufferHandle = 0; |
| if (target == GL_READ_FRAMEBUFFER) |
| { |
| framebuffer = context->getReadFramebuffer(); |
| framebufferHandle = context->getReadFramebufferHandle(); |
| } |
| else |
| { |
| framebuffer = context->getDrawFramebuffer(); |
| framebufferHandle = context->getDrawFramebufferHandle(); |
| } |
| |
| if (framebufferHandle == 0 || !framebuffer) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| return true; |
| } |
| |
| bool ValidES3ReadFormatType(GLenum internalFormat, GLenum format, GLenum type) |
| { |
| 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; |
| default: |
| return false; |
| } |
| break; |
| case GL_RGBA_INTEGER: |
| switch (type) |
| { |
| case GL_INT: |
| if (gl::GetComponentType(internalFormat, 3) != GL_INT) |
| { |
| return false; |
| } |
| break; |
| case GL_UNSIGNED_INT: |
| if (gl::GetComponentType(internalFormat, 3) != 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; |
| default: |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateInvalidateFramebufferParameters(gl::Context *context, GLenum target, GLsizei numAttachments, |
| const GLenum* attachments) |
| { |
| bool defaultFramebuffer = false; |
| |
| switch (target) |
| { |
| case GL_DRAW_FRAMEBUFFER: |
| case GL_FRAMEBUFFER: |
| defaultFramebuffer = context->getDrawFramebufferHandle() == 0; |
| break; |
| case GL_READ_FRAMEBUFFER: |
| defaultFramebuffer = context->getReadFramebufferHandle() == 0; |
| break; |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| for (int i = 0; i < numAttachments; ++i) |
| { |
| if (attachments[i] >= GL_COLOR_ATTACHMENT0 && attachments[i] <= GL_COLOR_ATTACHMENT15) |
| { |
| if (defaultFramebuffer) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (attachments[i] >= GL_COLOR_ATTACHMENT0 + context->getMaximumRenderTargets()) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| else |
| { |
| switch (attachments[i]) |
| { |
| case GL_DEPTH_ATTACHMENT: |
| case GL_STENCIL_ATTACHMENT: |
| case GL_DEPTH_STENCIL_ATTACHMENT: |
| if (defaultFramebuffer) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| break; |
| case GL_COLOR: |
| case GL_DEPTH: |
| case GL_STENCIL: |
| if (!defaultFramebuffer) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| break; |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| } |