add grab output mipmap level feature

src/core/core/glframebuffer.cpp

@@ -227,7 +227,16 @@ void Framebuffer::blit(int index_from, GLuint fb_to, int index_to, QRect from, Q
 	f->glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
 	f->glReadBuffer(GL_COLOR_ATTACHMENT0 + index_from);
 	f->glDrawBuffers(1, &e);
-	f->glBlitFramebuffer(from.x(), from.y(), from.right(), from.bottom(), to.x(), to.y(), to.right(), to.bottom(), mask, filter);
+	f->glBlitFramebuffer(from.x(),
+						 from.y(),
+						 from.right() + 1,
+						 from.bottom() + 1,
+						 to.x(),
+						 to.y(),
+						 to.right() + 1,
+						 to.bottom() + 1,
+						 mask,
+						 filter);
 }
 
 

src/core/core/glframebuffer_mipmap.cpp

@@ -37,6 +37,12 @@ void FramebufferMipmap::setIndexFrom(int index) {
 }
 
 
+void FramebufferMipmap::enablePixelBuffer() {
+	for (int i = 0; i < fbo.size(); ++i)
+		fbo[i]->enablePixelBuffer();
+}
+
+
 void FramebufferMipmap::resize() {
 	QSize sz = src_fb.size();
 	for (int i = 0; i < fbo.size(); ++i) {

src/core/core/glframebuffer_mipmap.h

@@ -37,6 +37,7 @@ public:
 	QRect rect(int level) const { return fbo[level]->rect(); }
 	void setIndexFrom(int index);
 
+	void enablePixelBuffer();
 	void resize();
 	void create();
 	void reinit();

src/core/render/renderer.cpp

@@ -47,7 +47,9 @@ Renderer::Renderer(QGLView * view_)
 	, rend_service(this)
 	, rend_selection(this)
 	, tone_proc(this)
-	, tex_env(view_, 512) {
+	, tex_env(view_, 512)
+	, img_mips(fbo_out, obrLighting, 4)
+	, img_f_mips(fbo_out, obrLighting, 4) {
 	mat_norm_to_tex_coord.scale(0.5, 0.5);
 	mat_norm_to_tex_coord.translate(1, 1);
 	mat_proj_90 = glMatrixPerspective(90., 1., 0.1);
@@ -137,6 +139,10 @@ void Renderer::init(int width, int height) {
 	shadow_maps_omni.reinit();
 	depth_maps_cone.reinit();
 	depth_maps_omni.reinit();
+	img_mips.reinit();
+	img_f_mips.reinit();
+	img_mips.enablePixelBuffer();
+	img_f_mips.enablePixelBuffer();
 	resize(width, height);
 	rend_mat.init(256, 256);
 	rend_service.init(width, height);
@@ -158,6 +164,8 @@ void Renderer::resize(int width, int height) {
 	rend_selection.resize(width, height);
 	fbo_ds.resize(width, height);
 	fbo_out.resize(width, height);
+	img_mips.resize();
+	img_f_mips.resize();
 	tone_proc.resize();
 }
 
@@ -712,12 +720,26 @@ void Renderer::renderScene() {
 	/// grab framebuffer
 	phase.begin("grab");
 	if (view->grabFormats().testFlag(gfImage)) {
-		fbo_out.queryImage(cur_write_plane);
-		last_img = fbo_out.getImage().mirrored();
+		if (grab_mipmap == 0) {
+			fbo_out.queryImage(cur_write_plane);
+			last_img = fbo_out.getImage().mirrored();
+		} else {
+			img_mips.setIndexFrom(cur_write_plane);
+			img_mips.create();
+			img_mips.plane(grab_mipmap - 1).queryImage(0);
+			last_img = img_mips.plane(grab_mipmap - 1).getImage().mirrored();
+		}
 	}
 	if (view->grabFormats().testFlag(gfFloat)) {
-		fbo_out.queryImageF(obrLighting);
-		last_img_f = fbo_out.getPointsFloat();
+		if (grab_mipmap_f == 0) {
+			fbo_out.queryImage(obrLighting);
+			last_img_f = fbo_out.getPointsFloat();
+		} else {
+			img_f_mips.setIndexFrom(obrLighting);
+			img_f_mips.create();
+			img_f_mips.plane(grab_mipmap_f - 1).queryImageF(0);
+			last_img_f = img_f_mips.plane(grab_mipmap_f - 1).getPointsFloat();
+		}
 	}
 	// qDebug() << last_img.size();
 	phase.end();

src/core/render/renderer.h

@@ -20,6 +20,7 @@
 #define RENDERER_H
 
 #include "glcubemap.h"
+#include "glframebuffer.h"
 #include "glframebuffereffectbase.h"
 #include "renderer_base.h"
 #include "renderer_material.h"
@@ -134,6 +135,7 @@ protected:
 private:
 	float gamma_ = 1.f;
 	int camera_light_mode, cur_write_plane = 0, prev_write_plane = 0;
+	int grab_mipmap = 0, grab_mipmap_f = 0;
 	bool edit_mode, need_init_shaders, need_render_sum, __reinit_debug;
 	Framebuffer fbo_ds, fbo_out;
 	QMap<ShaderRole, QString> shader_files;
@@ -160,6 +162,7 @@ private:
 	QVector<QVector3D> hcontent;
 	QMap<int, QList<Light *>> cur_lights;
 	QVector<FramebufferEffectBase *> fb_effects;
+	FramebufferMipmap img_mips, img_f_mips;
 	QImage last_img;
 	QVector<QVector4D> last_img_f;
 	QString obr_defines, timings;

src/core/view/qglview.cpp

@@ -285,6 +285,16 @@ void QGLView::restoreCamera(const QByteArray & ba) {
 }
 
 
+void QGLView::setGrabImageMipmap(int level) {
+	renderer_.grab_mipmap = level;
+}
+
+
+void QGLView::setGrabImageFMipmap(int level) {
+	renderer_.grab_mipmap_f = level;
+}
+
+
 void QGLView::setShadowMapSize(QSize sz) {
 	shadow_map_size = sz;
 }

src/core/view/qglview.h

@@ -164,6 +164,8 @@ public:
 	void setGrabFormats(QFlags<Renderer::GrabFormat> f) { grab_formats = f; }
 	QImage getImage() const { return renderer_.getImage(); }
 	QVector<QVector4D> getImageF() const { return renderer_.getImageF(); }
+	void setGrabImageMipmap(int level);
+	void setGrabImageFMipmap(int level);
 
 	void setShadowMapSize(QSize sz);
 	void setTextureMapSize(QSize sz);