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1f1a331a44
glFramebufferParameteri, glGetFramebufferParameteriv and their two by-name siblings were all export stubs - the GL_ARB_framebuffer_no_attachments entry points. The stub raises no error and writes nothing, so direct_state_access.framebuffers_get_parameter_errors saw GL_NO_ERROR for all three conditions it checks. FramebufferObject gains the five DEFAULT_* parameters as real state, initialised to GL 4.6 core table 23.24 and bumping the object version on a write like the read buffer does. The getter answers those plus the six derived names - GL_SAMPLES and GL_SAMPLE_BUFFERS from the attachments' sample counts, GL_IMPLEMENTATION_COLOR_READ_FORMAT/_TYPE from the read buffer's internal format, GL_DOUBLEBUFFER true only for the window-system framebuffer, GL_STEREO false because stereo surfaces are not exposed - which is what glGetIntegerv already reports for the bound framebuffer. The pname rules live in ValidateFramebufferParameterPname, and their ORDER is load-bearing: a name outside the table is INVALID_ENUM, and only a name that IS in the table but that the default framebuffer cannot answer is INVALID_OPERATION. Testing the framebuffer kind first would answer INVALID_ENUM for GL_FRAMEBUFFER_DEFAULT_WIDTH on framebuffer zero, which is exactly the third thing the case checks. The by-name forms take zero as the default framebuffer, like the other DSA framebuffer entry points. Rendering to a framebuffer with no attachments is deliberately NOT enabled by this: CheckCompleteness still reports INCOMPLETE_MISSING_ATTACHMENT, because no backend can rasterize one. The state is real and the queries are honest; the draw path is a separate piece of work. Takes framebuffers_get_parameter_errors from failing to passing on both backends, with framebuffers_get_parameters - which passed only because both getters were stubs leaving the CTS's zero-initialised comparands untouched - still passing.
98 lines
6.9 KiB
C++
98 lines
6.9 KiB
C++
// MobileGL - MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h
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// Copyright (c) 2025-2026 MobileGL-Dev
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// Licensed under the GNU Lesser General Public License v3.0:
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// https://www.gnu.org/licenses/gpl-3.0.txt
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// https://www.gnu.org/licenses/lgpl-3.0.txt
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// SPDX-License-Identifier: LGPL-3.0-only
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// End of Source File Header
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#pragma once
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#include "MG_State/GLState/FramebufferState/FramebufferObject.h"
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#include <Includes.h>
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#include <MG_State/GLState/Core.h>
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namespace MobileGL::MG_Impl::GLImpl {
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/* @INSERTION_POINT:FUNCTION_DECLARATION@ */
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void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels);
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void ReadnPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize,
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void* data);
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void ClearBufferfi(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
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void ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat* value);
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void ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint* value);
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void ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint* value);
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void RenderbufferStorageMultisample(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
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GLsizei height);
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void RenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
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GLboolean IsRenderbuffer(GLuint renderbuffer);
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void GetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* params);
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void GenRenderbuffers(GLsizei n, GLuint* renderbuffers);
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void CreateRenderbuffers(GLsizei n, GLuint* renderbuffers);
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void NamedRenderbufferStorage(GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height);
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void NamedRenderbufferStorageMultisample(GLuint renderbuffer, GLsizei samples, GLenum internalformat,
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GLsizei width, GLsizei height);
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void GetNamedRenderbufferParameteriv(GLuint renderbuffer, GLenum pname, GLint* params);
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void FramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
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void NamedFramebufferRenderbuffer(GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget,
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GLuint renderbuffer);
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void DeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers);
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void BindRenderbuffer(GLenum target, GLuint renderbuffer);
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void SampleMaski(GLuint maskNumber, GLbitfield mask);
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GLboolean IsFramebuffer(GLuint framebuffer);
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void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params);
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void GenFramebuffers(GLsizei n, GLuint* framebuffers);
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void CreateFramebuffers(GLsizei n, GLuint* framebuffers);
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void FramebufferTextureLayer(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer);
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void FramebufferTexture3D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level,
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GLint zoffset);
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void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
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void FramebufferTexture1D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
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void FramebufferTexture(GLenum target, GLenum attachment, GLuint texture, GLint level);
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void NamedFramebufferTexture(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level);
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void NamedFramebufferTexture1D(GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
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void NamedFramebufferTexture2D(GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
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void NamedFramebufferTexture3D(GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level,
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GLint zoffset);
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void NamedFramebufferTextureLayer(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer);
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void NamedFramebufferDrawBuffer(GLuint framebuffer, GLenum buf);
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void NamedFramebufferDrawBuffers(GLuint framebuffer, GLsizei n, const GLenum* bufs);
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void NamedFramebufferReadBuffer(GLuint framebuffer, GLenum src);
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void ClearNamedFramebufferfv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat* value);
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void ClearNamedFramebufferfi(GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
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void InvalidateNamedFramebufferData(GLuint framebuffer, GLsizei numAttachments, const GLenum* attachments);
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void InvalidateNamedFramebufferSubData(GLuint framebuffer, GLsizei numAttachments, const GLenum* attachments,
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GLint x, GLint y, GLsizei width, GLsizei height);
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void InvalidateFramebuffer(GLenum target, GLsizei numAttachments, const GLenum* attachments);
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void InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments, const GLenum* attachments, GLint x, GLint y,
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GLsizei width, GLsizei height);
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void ClearNamedFramebufferiv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint* value);
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void ClearNamedFramebufferuiv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint* value);
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GLenum CheckNamedFramebufferStatus(GLuint framebuffer, GLenum target);
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void GetFramebufferParameteriv(GLenum target, GLenum pname, GLint* params);
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void FramebufferParameteri(GLenum target, GLenum pname, GLint param);
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void GetNamedFramebufferParameteriv(GLuint framebuffer, GLenum pname, GLint* params);
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void NamedFramebufferParameteri(GLuint framebuffer, GLenum pname, GLint param);
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void GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer, GLenum attachment, GLenum pname, GLint* params);
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void BlitNamedFramebuffer(GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1,
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GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask,
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GLenum filter);
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void DrawBuffer(GLenum buf);
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void DrawBuffers(GLsizei n, const GLenum* bufs);
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void ReadBuffer(GLenum src);
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void DeleteFramebuffers(GLsizei n, const GLuint* framebuffers);
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GLenum CheckFramebufferStatus(GLenum target);
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void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
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GLint dstY1, GLbitfield mask, GLenum filter);
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void BindFramebuffer(GLenum target, GLuint framebuffer);
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namespace FramebufferImpl {
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struct DefaultFramebufferInfo {
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SharedPtr<MG_State::GLState::FramebufferObject> defaultFBO;
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SharedPtr<MG_State::GLState::ITextureObject> colorAttachment;
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SharedPtr<MG_State::GLState::ITextureObject> depthAttachment;
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SharedPtr<MG_State::GLState::ITextureObject> stencilAttachment;
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};
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extern UniquePtr<DefaultFramebufferInfo>& pDefaultFramebufferInfo;
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} // namespace FramebufferImpl
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} // namespace MobileGL::MG_Impl::GLImpl
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