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[Fix] (MG_Backend/DirectGLES): properly handle default fbo's attachment?

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swung0x48
2026-02-04 16:20:51 +08:00
parent dfaa2c259b
commit d13a19126b
1 changed files with 18 additions and 6 deletions
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MobileGL/MG_Backend/DirectGLES/Managers.cpp
+17 -5
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@@ -865,13 +865,22 @@ namespace MobileGL::MG_Backend::DirectGLES {
std::fill(m_backendDrawBuffers, m_backendDrawBuffers + FramebufferObject::MAX_DRAW_BUFFERS, GL_NONE); std::fill(m_backendDrawBuffers, m_backendDrawBuffers + FramebufferObject::MAX_DRAW_BUFFERS, GL_NONE);
int nEffectiveBuffers = 0; int nEffectiveBuffers = 0;
for (GLint i = 0; i < FramebufferObject::MAX_DRAW_BUFFERS; ++i) { for (GLint i = 0; i < FramebufferObject::MAX_DRAW_BUFFERS; ++i) {
if (stateDrawBuffers[i] == FramebufferAttachmentType::None) { auto frontendBuf = stateDrawBuffers[i];
if (frontendBuf == FramebufferAttachmentType::None) {
m_backendDrawBuffers[i] = GL_NONE; m_backendDrawBuffers[i] = GL_NONE;
continue; continue;
} }
// Create compacted mapping // Create compacted mapping
if (frontendBuf == FramebufferAttachmentType::FrontLeft ||
frontendBuf == FramebufferAttachmentType::FrontRight ||
frontendBuf == FramebufferAttachmentType::BackLeft ||
frontendBuf == FramebufferAttachmentType::BackRight) {
MGLOG_D("%s: frontend buf token found for default fbo, shouldn't remap", __func__);
m_backendDrawBuffers[i] = MG_Util::ConvertFramebufferAttachmentTypeToGLEnum(frontendBuf);
} else {
m_backendDrawBuffers[i] = GL_COLOR_ATTACHMENT0 + i; m_backendDrawBuffers[i] = GL_COLOR_ATTACHMENT0 + i;
}
nEffectiveBuffers = i + 1; nEffectiveBuffers = i + 1;
} }
MG_External::GLES::glDrawBuffers(nEffectiveBuffers, m_backendDrawBuffers); MG_External::GLES::glDrawBuffers(nEffectiveBuffers, m_backendDrawBuffers);
@@ -891,14 +900,17 @@ namespace MobileGL::MG_Backend::DirectGLES {
} }
// -------------------- Attach texture to backend FBO ----------------------- // -------------------- Attach texture to backend FBO -----------------------
// TODO: attach according to remapped
const auto& attachments = stateFBOObject->GetAllAttachmentObjects(); const auto& attachments = stateFBOObject->GetAllAttachmentObjects();
const auto& attachmentVersions = stateFBOObject->GetAllFramebufferAttachmentVersions(); const auto& attachmentVersions = stateFBOObject->GetAllFramebufferAttachmentVersions();
for (SizeT i = 0; i < attachments.size(); ++i) { for (SizeT i = 0; i < attachments.size(); ++i) {
const auto& attachmentObject = attachments[i]; const auto& attachmentObject = attachments[i];
FramebufferAttachmentType type = static_cast<FramebufferAttachmentType>(i); FramebufferAttachmentType frontendType = static_cast<FramebufferAttachmentType>(i);
// should retrieve BACKEND attachment here GLenum glBackendAttachment = GL_NONE;
GLenum glBackendAttachment = MG_Util::ConvertFramebufferAttachmentTypeToGLEnum(type); if (frontendType >= FramebufferAttachmentType::Color0 &&
frontendType <= FramebufferAttachmentType::Color31)
glBackendAttachment = GetBackendAttachmentType(frontendType);
else
glBackendAttachment = MG_Util::ConvertFramebufferAttachmentTypeToGLEnum(frontendType);
// relevant FRONTEND!!! version should be checked and updated // relevant FRONTEND!!! version should be checked and updated
if (m_syncedFrontendAttachmentVersions[i] != attachmentVersions[i]) { if (m_syncedFrontendAttachmentVersions[i] != attachmentVersions[i]) {