Commit: 4a1762f7698c4615cf275ad6019cab920afc3208
Author: Bastien Montagne
Date:   Fri Aug 11 18:02:54 2017 +0200
Branches: master
https://developer.blender.org/rB4a1762f7698c4615cf275ad6019cab920afc3208

iFix T52050: Empty VSE preview for scene strips with OpenGL preview + Rendered 
settings.

'OpenGL Preview' checkbox was redundant now, just use seq_prev_type
value only.

Might be OK for 2.79, but should be double-checked first...

===================================================================

M       release/scripts/startup/bl_ui/space_sequencer.py
M       source/blender/blenkernel/intern/scene.c
M       source/blender/blenkernel/intern/sequencer.c
M       source/blender/editors/space_sequencer/sequencer_draw.c
M       source/blender/makesdna/DNA_scene_types.h
M       source/blender/makesrna/intern/rna_scene.c

===================================================================

diff --git a/release/scripts/startup/bl_ui/space_sequencer.py 
b/release/scripts/startup/bl_ui/space_sequencer.py
index 79bb10cefeb..d155f5868f4 100644
--- a/release/scripts/startup/bl_ui/space_sequencer.py
+++ b/release/scripts/startup/bl_ui/space_sequencer.py
@@ -1101,9 +1101,6 @@ class SEQUENCER_PT_preview(SequencerButtonsPanel_Output, 
Panel):
         render = context.scene.render
 
         col = layout.column()
-        col.prop(render, "use_sequencer_gl_preview", text="OpenGL Preview")
-        col = layout.column()
-        #col.active = render.use_sequencer_gl_preview
         col.prop(render, "sequencer_gl_preview", text="")
 
         row = col.row()
diff --git a/source/blender/blenkernel/intern/scene.c 
b/source/blender/blenkernel/intern/scene.c
index 9002003d380..b7fc6e70e65 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -676,7 +676,7 @@ void BKE_scene_init(Scene *sce)
 
        sce->r.seq_prev_type = OB_SOLID;
        sce->r.seq_rend_type = OB_SOLID;
-       sce->r.seq_flag = R_SEQ_GL_PREV;
+       sce->r.seq_flag = 0;
 
        sce->r.threads = 1;
 
diff --git a/source/blender/blenkernel/intern/sequencer.c 
b/source/blender/blenkernel/intern/sequencer.c
index b09b3ecda07..e733f9dbd86 100644
--- a/source/blender/blenkernel/intern/sequencer.c
+++ b/source/blender/blenkernel/intern/sequencer.c
@@ -3233,7 +3233,7 @@ static ImBuf *seq_render_scene_strip(const SeqRenderData 
*context, Sequence *seq
        const bool is_background = G.background;
        const bool do_seq_gl = is_rendering ?
                0 /* (context->scene->r.seq_flag & R_SEQ_GL_REND) */ :
-               (context->scene->r.seq_flag & R_SEQ_GL_PREV) != 0;
+               (context->scene->r.seq_prev_type) != OB_RENDER;
        // bool have_seq = false;  /* UNUSED */
        bool have_comp = false;
        bool use_gpencil = true;
diff --git a/source/blender/editors/space_sequencer/sequencer_draw.c 
b/source/blender/editors/space_sequencer/sequencer_draw.c
index 70a6e6d83cb..97961501c6d 100644
--- a/source/blender/editors/space_sequencer/sequencer_draw.c
+++ b/source/blender/editors/space_sequencer/sequencer_draw.c
@@ -40,6 +40,7 @@
 
 #include "DNA_scene_types.h"
 #include "DNA_mask_types.h"
+#include "DNA_object_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
 #include "DNA_userdef_types.h"
@@ -1116,18 +1117,16 @@ void draw_image_seq(const bContext *C, Scene *scene, 
ARegion *ar, SpaceSeq *sseq
        const char *names[2] = {STEREO_LEFT_NAME, STEREO_RIGHT_NAME};
        bool draw_metadata = false;
 
-       if (G.is_rendering == false && (scene->r.seq_flag & R_SEQ_GL_PREV) == 
0) {
+       if (G.is_rendering == false && (scene->r.seq_prev_type) == OB_RENDER) {
                /* stop all running jobs, except screen one. currently previews 
frustrate Render
                 * needed to make so sequencer's rendering doesn't conflict 
with compositor
                 */
                WM_jobs_kill_type(CTX_wm_manager(C), NULL, 
WM_JOB_TYPE_COMPOSITE);
 
-               if ((scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
-                       /* in case of final rendering used for preview, kill 
all previews,
-                        * otherwise threading conflict will happen in 
rendering module
-                        */
-                       WM_jobs_kill_type(CTX_wm_manager(C), NULL, 
WM_JOB_TYPE_RENDER_PREVIEW);
-               }
+               /* in case of final rendering used for preview, kill all 
previews,
+                * otherwise threading conflict will happen in rendering module
+                */
+               WM_jobs_kill_type(CTX_wm_manager(C), NULL, 
WM_JOB_TYPE_RENDER_PREVIEW);
        }
 
        if ((!draw_overlay || sseq->overlay_type == SEQ_DRAW_OVERLAY_REFERENCE) 
&& !draw_backdrop) {
diff --git a/source/blender/makesdna/DNA_scene_types.h 
b/source/blender/makesdna/DNA_scene_types.h
index cc1991cb2db..2bca5565553 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -751,7 +751,7 @@ typedef struct RenderData {
 
        /* sequencer options */
        char seq_prev_type;
-       char seq_rend_type;
+       char seq_rend_type;  /* UNUSED! */
        char seq_flag; /* flag use for sequence render/draw */
        char pad5[5];
 
@@ -1790,7 +1790,7 @@ typedef struct Scene {
 #define R_USE_WS_SHADING       0x8000000 /* use world space interpretation of 
lighting data */
 
 /* seq_flag */
-#define R_SEQ_GL_PREV 1
+// #define R_SEQ_GL_PREV 1  // UNUSED, we just use setting from seq_prev_type 
now.
 // #define R_SEQ_GL_REND 2  // UNUSED, opengl render has its own operator now.
 #define R_SEQ_SOLID_TEX 4
 
diff --git a/source/blender/makesrna/intern/rna_scene.c 
b/source/blender/makesrna/intern/rna_scene.c
index 24ecf2e64ca..2b468aa6910 100644
--- a/source/blender/makesrna/intern/rna_scene.c
+++ b/source/blender/makesrna/intern/rna_scene.c
@@ -6613,11 +6613,6 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 
        /* sequencer draw options */
 
-       prop = RNA_def_property(srna, "use_sequencer_gl_preview", PROP_BOOLEAN, 
PROP_NONE);
-       RNA_def_property_boolean_sdna(prop, NULL, "seq_flag", R_SEQ_GL_PREV);
-       RNA_def_property_ui_text(prop, "Sequencer OpenGL", "");
-       RNA_def_property_update(prop, NC_SCENE | ND_SEQUENCER, 
"rna_SceneSequencer_update");
-
 #if 0  /* see R_SEQ_GL_REND comment */
        prop = RNA_def_property(srna, "use_sequencer_gl_render", PROP_BOOLEAN, 
PROP_NONE);
        RNA_def_property_boolean_sdna(prop, NULL, "seq_flag", R_SEQ_GL_REND);
@@ -6630,10 +6625,13 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
        RNA_def_property_ui_text(prop, "Sequencer Preview Shading", "Method to 
draw in the sequencer view");
        RNA_def_property_update(prop, NC_SCENE | ND_SEQUENCER, 
"rna_SceneSequencer_update");
 
+#if 0  /* UNUSED, see R_SEQ_GL_REND comment */
        prop = RNA_def_property(srna, "sequencer_gl_render", PROP_ENUM, 
PROP_NONE);
        RNA_def_property_enum_sdna(prop, NULL, "seq_rend_type");
        RNA_def_property_enum_items(prop, rna_enum_viewport_shade_items);
+       /* XXX Label and tooltips are obviously wrong! */
        RNA_def_property_ui_text(prop, "Sequencer Preview Shading", "Method to 
draw in the sequencer view");
+#endif
 
        prop = RNA_def_property(srna, "use_sequencer_gl_textured_solid", 
PROP_BOOLEAN, PROP_NONE);
        RNA_def_property_boolean_sdna(prop, NULL, "seq_flag", R_SEQ_SOLID_TEX);

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