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[Feat] (MG_Backend/DirectGLES): Try to handle CopyTex*Image2D for depth textures.

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This commit is contained in:
BZLZHH
2026-02-05 15:16:10 +08:00
parent 8fe266e027
commit 41c8850846
1 changed files with 74 additions and 2 deletions
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MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+74 -2
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@@ -7,7 +7,9 @@
// End of Source File Header
#include "DirectGLES.h"
#include "GLES3/gl32.h"
#include "MG_State/GLState/SamplerState/SamplerObject.h"
#include "MG_Util/Debug/Log.h"
#include "Utils.h"
#include "Managers.h"
#include <MG_Util/Converters/GLToMG/TextureEnumConverter.h>
@@ -819,6 +821,29 @@ namespace MobileGL::MG_Backend::DirectGLES {
return true;
}
static GLuint s_prevDrawFBO = 0;
void BindTempDrawFBO() {
MGLOG_D("%s: Binding temporary FBO for operations like CopyTexImage2D that require framebuffer binding, "
"previous draw FBO=%u",
__func__, s_prevDrawFBO);
static GLuint tempFBO = 0;
if (!tempFBO) {
MG_External::GLES::glGenFramebuffers(1, &tempFBO);
}
MG_External::GLES::glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, (GLint*)&s_prevDrawFBO);
MG_External::GLES::glBindFramebuffer(GL_DRAW_FRAMEBUFFER, tempFBO);
}
void RestoreDrawFBOFromTemp() {
MGLOG_D("%s: Restoring previous draw FBO=%u", __func__, s_prevDrawFBO);
MG_External::GLES::glBindFramebuffer(GL_DRAW_FRAMEBUFFER, s_prevDrawFBO);
}
class TempFBOBinder {
public:
TempFBOBinder() { BindTempDrawFBO(); }
~TempFBOBinder() { RestoreDrawFBOFromTemp(); }
};
void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
GLsizei height, GLint border) {
#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
@@ -864,8 +889,34 @@ namespace MobileGL::MG_Backend::DirectGLES {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
} else {
MGLOG_D("%s: Backend depth (Not implemented)", __func__);
MGLOG_D("%s: Backend depth", __func__);
MG_External::GLES::glTexImage2D(target, level, (GLint)internalformat, width, height, border, format, type,
nullptr);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLint currentTex;
MG_External::GLES::glGetIntegerv(Utils::GetBindingQuery(target, true), &currentTex);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLenum attachment = isStencilFormat ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT;
TempFBOBinder tempFBOBinder;
MG_External::GLES::glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, attachment, target, currentTex, level);
if (MG_External::GLES::glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
MGLOG_E("ES glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE");
return;
}
MG_External::GLES::glBlitFramebuffer(x, y, x + width, y + height, 0, 0, width, height,
GL_DEPTH_BUFFER_BIT | (isStencilFormat ? GL_STENCIL_BUFFER_BIT : 0),
GL_NEAREST);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
}
}
@@ -912,8 +963,29 @@ namespace MobileGL::MG_Backend::DirectGLES {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
} else {
MGLOG_D("%s: Backend depth (Not implemented)", __func__);
MGLOG_D("%s: Backend depth", __func__);
GLint currentTex;
MG_External::GLES::glGetIntegerv(Utils::GetBindingQuery(target, false), &currentTex);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLenum attachment = isStencilFormat ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT;
TempFBOBinder tempFBOBinder;
MG_External::GLES::glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, attachment, target, currentTex, level);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
if (MG_External::GLES::glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
MGLOG_E("ES glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE");
return;
}
MG_External::GLES::glBlitFramebuffer(
x, y, x + width, y + height, xoffset, yoffset, xoffset + width, yoffset + height,
GL_DEPTH_BUFFER_BIT | (isStencilFormat ? GL_STENCIL_BUFFER_BIT : 0), GL_NEAREST);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
}
}