mirror of
https://github.com/MobileGL-Dev/MobileGL
synced 2026-09-08 04:08:32 +09:00
[Feat] (MG_Impl/Framebuffer): Implement essential framebuffer functions.
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BZLZHH
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#include "GL_Framebuffer.h"
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#include "GL/glext.h"
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#include "Validators.h"
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#include <MG_State/GLState/Core.h>
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#include <MG_State/GLState/ErrorState/Error.h>
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#include <MG_Util/Converters/GLToMG/FramebufferEnumConverter.h>
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namespace MobileGL {
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namespace MG_Impl::GLImpl {
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void BlitFramebuffer_Backend(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0,
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GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
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// TODO: implement
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}
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void SampleMaski_State(GLuint maskNumber, GLbitfield mask) {
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// TODO: implement
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}
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void RenderbufferStorageMultisample_State(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
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GLsizei height) {
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// TODO: implement
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}
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void RenderbufferStorage_State(GLenum target, GLenum internalformat, GLsizei width, GLsizei height) {
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// TODO: implement
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}
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GLboolean IsRenderbuffer_State(GLuint renderbuffer) {
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// TODO: implement
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return GL_FALSE;
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}
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GLboolean IsFramebuffer_State(GLuint framebuffer) {
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// TODO: implement
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return GL_FALSE;
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}
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void GetFramebufferAttachmentParameteriv_State(GLenum target, GLenum attachment, GLenum pname, GLint* params) {
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// TODO: implement
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}
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void GenerateMipmap_State(GLenum target) {
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// TODO: implement
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}
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void GenRenderbuffers_State(GLsizei n, GLuint* renderbuffers) {
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// TODO: implement
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}
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void GenFramebuffers_State(GLsizei n, GLuint* framebuffers) {
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if (n < 0) {
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MG_State::pGLContext->RecordError(
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ErrorCode::InvalidValue,
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MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "GenFramebuffers_State", "n must be non-negative"));
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return;
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}
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auto framebuffersNames = MG_State::pGLContext->GenFramebufferNames(n);
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Copy(framebuffersNames.data(), framebuffers, framebuffersNames.size());
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}
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void FramebufferTextureLayer_State(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer) {
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// TODO: implement
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}
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void FramebufferTexture3D_State(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level,
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GLint zoffset) {
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// TODO: implement
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}
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void FramebufferTexture2D_State(GLenum target, GLenum attachment, GLenum textarget, GLuint texture,
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GLint level) {
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if (target == GL_FRAMEBUFFER) {
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FramebufferTexture2D_State(GL_DRAW_FRAMEBUFFER, attachment, textarget, texture, level);
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FramebufferTexture2D_State(GL_READ_FRAMEBUFFER, attachment, textarget, texture, level);
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return;
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}
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FramebufferAttachmentType attachmentType = MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
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if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
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if (!FramebufferImpl::ValidateFramebufferName(texture, true)) return;
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FramebufferTarget framebufferTarget = MG_Util::ConvertGLEnumToFramebufferTarget(target);
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if (!FramebufferImpl::ValidateFramebufferTarget(framebufferTarget)) return;
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auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(framebufferTarget);
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auto framebufferObject = bindingSlot.GetBoundObject();
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if (!framebufferObject) {
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MG_State::pGLContext->RecordError(
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ErrorCode::InvalidOperation,
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MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "FramebufferTexture2D_State",
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"Framebuffer target is bound to no framebuffer object."));
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return;
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}
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auto textureObject = MG_State::pGLContext->GetTextureObject(texture);
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if (!textureObject) {
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MG_State::pGLContext->RecordError(
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ErrorCode::InvalidOperation,
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MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "FramebufferTexture2D_State",
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std::format("Texture object {} is not valid.", texture)));
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return;
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}
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framebufferObject->AttachTexture(attachmentType, textureObject, level);
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}
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void FramebufferTexture1D_State(GLenum target, GLenum attachment, GLenum textarget, GLuint texture,
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GLint level) {
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// TODO: implement
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}
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void FramebufferTexture_State(GLenum target, GLenum attachment, GLuint texture, GLint level) {
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// TODO: implement
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}
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void FramebufferRenderbuffer_State(GLenum target, GLenum attachment, GLenum renderbuffertarget,
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GLuint renderbuffer) {
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// TODO: implement
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}
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void DrawBuffers_State(GLsizei n, const GLenum* bufs) {
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// TODO: implement
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}
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void DeleteRenderbuffers_State(GLsizei n, const GLuint* renderbuffers) {
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// TODO: implement
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}
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void DeleteFramebuffers_State(GLsizei n, const GLuint* framebuffers) {
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if (n < 0) {
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MG_State::pGLContext->RecordError(
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ErrorCode::InvalidValue, MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "DeleteFramebuffers_State",
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"n must be non-negative."));
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return;
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}
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if (!framebuffers) {
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MG_State::pGLContext->RecordError(
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ErrorCode::InvalidValue, MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "DeleteFramebuffers_State",
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"Framebuffer names array cannot be null."));
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return;
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}
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for (SizeT i = 0; i < static_cast<SizeT>(n); ++i) {
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Uint bufferName = framebuffers[i];
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if (bufferName == 0) continue;
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if (!FramebufferImpl::ValidateFramebufferName(bufferName)) continue;
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MG_State::pGLContext->MarkFramebufferObjectForDeletion(bufferName);
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}
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}
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GLenum CheckFramebufferStatus_State(GLenum target) {
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FramebufferTarget framebufferTarget = MG_Util::ConvertGLEnumToFramebufferTarget(target);
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if (!FramebufferImpl::ValidateFramebufferTarget(framebufferTarget)) return GL_FRAMEBUFFER_UNDEFINED;
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auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(framebufferTarget);
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auto framebufferObject = bindingSlot.GetBoundObject();
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if (!framebufferObject) {
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MG_State::pGLContext->RecordError(
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ErrorCode::InvalidOperation,
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MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "CheckFramebufferStatus_State",
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"Framebuffer target is bound to no framebuffer object."));
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return GL_FRAMEBUFFER_UNDEFINED;
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}
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// TODO: distinguish GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT and GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT
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// TODO: GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER, GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER,
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// GL_FRAMEBUFFER_UNSUPPORTED, GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE,
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// GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
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return framebufferObject->CheckCompleteness() ? GL_FRAMEBUFFER_COMPLETE
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: GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
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}
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void BindRenderbuffer_State(GLenum target, GLuint renderbuffer) {
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// TODO: implement
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}
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void BindFramebuffer_State(GLenum target, GLuint framebuffer) {
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if (target == GL_FRAMEBUFFER) {
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BindFramebuffer_State(GL_DRAW_FRAMEBUFFER, framebuffer);
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BindFramebuffer_State(GL_READ_FRAMEBUFFER, framebuffer);
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return;
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}
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if (!FramebufferImpl::ValidateFramebufferName(framebuffer)) return;
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FramebufferTarget framebufferTarget = MG_Util::ConvertGLEnumToFramebufferTarget(target);
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if (!FramebufferImpl::ValidateFramebufferTarget(framebufferTarget)) return;
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auto framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
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if (!framebufferObject) {
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MG_State::pGLContext->CreateFramebufferObject(framebuffer);
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framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
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}
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auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(framebufferTarget);
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bindingSlot.Bind(framebufferObject);
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}
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/* @INSERTION_POINT:FUNCTION_IMPLEMENTATION@ */
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void SampleMaski(GLuint maskNumber, GLbitfield mask) {
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SampleMaski_State(maskNumber, mask);
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}
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void RenderbufferStorageMultisample(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
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GLsizei height) {
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RenderbufferStorageMultisample_State(target, samples, internalformat, width, height);
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}
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void RenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height) {
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RenderbufferStorage_State(target, internalformat, width, height);
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}
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GLboolean IsRenderbuffer(GLuint renderbuffer) {
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return IsRenderbuffer_State(renderbuffer);
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}
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GLboolean IsFramebuffer(GLuint framebuffer) {
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return IsFramebuffer_State(framebuffer);
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}
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void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params) {
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GetFramebufferAttachmentParameteriv_State(target, attachment, pname, params);
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}
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void GenerateMipmap(GLenum target) {
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GenerateMipmap_State(target);
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}
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void GenRenderbuffers(GLsizei n, GLuint* renderbuffers) {
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GenRenderbuffers_State(n, renderbuffers);
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}
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void GenFramebuffers(GLsizei n, GLuint* framebuffers) {
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GenFramebuffers_State(n, framebuffers);
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}
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void FramebufferTextureLayer(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer) {
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FramebufferTextureLayer_State(target, attachment, texture, level, layer);
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}
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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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FramebufferTexture3D_State(target, attachment, textarget, texture, level, zoffset);
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}
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void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) {
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FramebufferTexture2D_State(target, attachment, textarget, texture, level);
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}
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void FramebufferTexture1D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) {
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FramebufferTexture1D_State(target, attachment, textarget, texture, level);
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}
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void FramebufferTexture(GLenum target, GLenum attachment, GLuint texture, GLint level) {
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FramebufferTexture_State(target, attachment, texture, level);
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}
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void FramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) {
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FramebufferRenderbuffer_State(target, attachment, renderbuffertarget, renderbuffer);
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}
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void DrawBuffers(GLsizei n, const GLenum* bufs) {
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DrawBuffers_State(n, bufs);
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}
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void DeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers) {
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DeleteRenderbuffers_State(n, renderbuffers);
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}
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void DeleteFramebuffers(GLsizei n, const GLuint* framebuffers) {
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DeleteFramebuffers_State(n, framebuffers);
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}
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GLenum CheckFramebufferStatus(GLenum target) {
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return CheckFramebufferStatus_State(target);
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}
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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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BlitFramebuffer_Backend(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
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}
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void BindRenderbuffer(GLenum target, GLuint renderbuffer) {
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BindRenderbuffer_State(target, renderbuffer);
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}
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void BindFramebuffer(GLenum target, GLuint framebuffer) {
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BindFramebuffer_State(target, framebuffer);
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}
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} // namespace MG_Impl::GLImpl
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} // namespace MobileGL
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