[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [45627] branches/soc-2011-tomato/source/ blender: Camera tracking: use texture buffers (if supported) to display clip editor frames
Sergey Sharybin
sergey.vfx at gmail.com
Sat Apr 14 14:03:09 CEST 2012
Revision: 45627
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=45627
Author: nazgul
Date: 2012-04-14 12:03:09 +0000 (Sat, 14 Apr 2012)
Log Message:
-----------
Camera tracking: use texture buffers (if supported) to display clip editor frames
Initial idea was to perform bilinear filtering for displaying proxied frame
to make it looking a bit smoother. It was done but it was also discovered
that using such kind of texture buffers helps on some crappy videocards
when playing $k footage.
Modified Paths:
--------------
branches/soc-2011-tomato/source/blender/blenloader/intern/readfile.c
branches/soc-2011-tomato/source/blender/editors/include/ED_clip.h
branches/soc-2011-tomato/source/blender/editors/space_clip/CMakeLists.txt
branches/soc-2011-tomato/source/blender/editors/space_clip/SConscript
branches/soc-2011-tomato/source/blender/editors/space_clip/clip_draw.c
branches/soc-2011-tomato/source/blender/editors/space_clip/clip_editor.c
branches/soc-2011-tomato/source/blender/editors/space_clip/space_clip.c
branches/soc-2011-tomato/source/blender/makesdna/DNA_space_types.h
Modified: branches/soc-2011-tomato/source/blender/blenloader/intern/readfile.c
===================================================================
--- branches/soc-2011-tomato/source/blender/blenloader/intern/readfile.c 2012-04-14 12:03:03 UTC (rev 45626)
+++ branches/soc-2011-tomato/source/blender/blenloader/intern/readfile.c 2012-04-14 12:03:09 UTC (rev 45627)
@@ -5385,6 +5385,7 @@
sclip->clip= newlibadr_us(fd, sc->id.lib, sclip->clip);
sclip->scopes.track_preview = NULL;
+ sclip->draw_context = NULL;
sclip->scopes.ok = 0;
}
}
Modified: branches/soc-2011-tomato/source/blender/editors/include/ED_clip.h
===================================================================
--- branches/soc-2011-tomato/source/blender/editors/include/ED_clip.h 2012-04-14 12:03:03 UTC (rev 45626)
+++ branches/soc-2011-tomato/source/blender/editors/include/ED_clip.h 2012-04-14 12:03:09 UTC (rev 45627)
@@ -58,6 +58,11 @@
void ED_clip_point_stable_pos(struct bContext *C, float x, float y, float *xr, float *yr);
void ED_clip_mouse_pos(struct bContext *C, struct wmEvent *event, float co[2]);
+int ED_space_clip_texture_buffer_supported(struct SpaceClip *sc);
+int ED_space_clip_load_movieclip_buffer(struct SpaceClip *sc, struct ImBuf *ibuf);
+void ED_space_clip_unload_movieclip_buffer(struct SpaceClip *sc);
+void ED_space_clip_free_texture_buffer(struct SpaceClip *sc);
+
/* clip_ops.c */
void ED_operatormacros_clip(void);
Modified: branches/soc-2011-tomato/source/blender/editors/space_clip/CMakeLists.txt
===================================================================
--- branches/soc-2011-tomato/source/blender/editors/space_clip/CMakeLists.txt 2012-04-14 12:03:03 UTC (rev 45626)
+++ branches/soc-2011-tomato/source/blender/editors/space_clip/CMakeLists.txt 2012-04-14 12:03:09 UTC (rev 45627)
@@ -31,6 +31,7 @@
../../makesdna
../../makesrna
../../windowmanager
+ ../../gpu
../../../../intern/guardedalloc
${GLEW_INCLUDE_PATH}
)
Modified: branches/soc-2011-tomato/source/blender/editors/space_clip/SConscript
===================================================================
--- branches/soc-2011-tomato/source/blender/editors/space_clip/SConscript 2012-04-14 12:03:03 UTC (rev 45626)
+++ branches/soc-2011-tomato/source/blender/editors/space_clip/SConscript 2012-04-14 12:03:09 UTC (rev 45627)
@@ -4,6 +4,6 @@
sources = env.Glob('*.c')
defs = []
incs = '../include ../../blenkernel ../../blenloader ../../blenfont ../../blenlib ../../imbuf ../../makesdna'
-incs += ' ../../makesrna ../../windowmanager #/intern/guardedalloc #/extern/glew/include'
+incs += ' ../../makesrna ../../windowmanager #/intern/guardedalloc #/extern/glew/include ../../gpu'
env.BlenderLib ( 'bf_editors_space_clip', sources, Split(incs), defs, libtype=['core'], priority=[95] )
Modified: branches/soc-2011-tomato/source/blender/editors/space_clip/clip_draw.c
===================================================================
--- branches/soc-2011-tomato/source/blender/editors/space_clip/clip_draw.c 2012-04-14 12:03:03 UTC (rev 45626)
+++ branches/soc-2011-tomato/source/blender/editors/space_clip/clip_draw.c 2012-04-14 12:03:09 UTC (rev 45627)
@@ -229,9 +229,6 @@
int x, y;
MovieClip *clip = ED_space_clip(sc);
- /* set zoom */
- glPixelZoom(zoomx*width/ibuf->x, zoomy*height/ibuf->y);
-
/* find window pixel coordinates of origin */
UI_view2d_to_region_no_clip(&ar->v2d, 0.0f, 0.0f, &x, &y);
@@ -242,8 +239,42 @@
else {
verify_buffer_float(ibuf);
- if (ibuf->rect)
- glaDrawPixelsSafe(x, y, ibuf->x, ibuf->y, ibuf->x, GL_RGBA, GL_UNSIGNED_BYTE, ibuf->rect);
+ if (ibuf->rect) {
+ int need_fallback = 1;
+
+ if (ED_space_clip_texture_buffer_supported(sc)) {
+ if (ED_space_clip_load_movieclip_buffer(sc, ibuf)) {
+ glPushMatrix();
+ glTranslatef(x, y, 0.0f);
+ glScalef(zoomx, zoomy, 1.0f);
+
+ glBegin(GL_QUADS);
+ glTexCoord2f(0.0f, 0.0f); glVertex2f(0.0f, 0.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex2f(width, 0.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex2f(width, height);
+ glTexCoord2f(0.0f, 1.0f); glVertex2f(0.0f, height);
+ glEnd();
+
+ glPopMatrix();
+
+ ED_space_clip_unload_movieclip_buffer(sc);
+
+ need_fallback = 0;
+ }
+ }
+
+ /* if texture buffers aren't efifciently supported or texture is too large to
+ * be binder fallback to simple draw pixels solution */
+ if (need_fallback) {
+ /* set zoom */
+ glPixelZoom(zoomx*width/ibuf->x, zoomy*height/ibuf->y);
+
+ glaDrawPixelsSafe(x, y, ibuf->x, ibuf->y, ibuf->x, GL_RGBA, GL_UNSIGNED_BYTE, ibuf->rect);
+
+ /* reset zoom */
+ glPixelZoom(1.0f, 1.0f);
+ }
+ }
}
/* draw boundary border for frame if stabilization is enabled */
@@ -255,9 +286,9 @@
glLogicOp(GL_NOR);
glPushMatrix();
- glTranslatef(x, y, 0);
+ glTranslatef(x, y, 0.0f);
- glScalef(zoomx, zoomy, 0);
+ glScalef(zoomx, zoomy, 1.0f);
glMultMatrixf(sc->stabmat);
glBegin(GL_LINE_LOOP);
@@ -272,10 +303,6 @@
glDisable(GL_COLOR_LOGIC_OP);
glDisable(GL_LINE_STIPPLE);
}
-
-
- /* reset zoom */
- glPixelZoom(1.0f, 1.0f);
}
static void draw_track_path(SpaceClip *sc, MovieClip *UNUSED(clip), MovieTrackingTrack *track)
Modified: branches/soc-2011-tomato/source/blender/editors/space_clip/clip_editor.c
===================================================================
--- branches/soc-2011-tomato/source/blender/editors/space_clip/clip_editor.c 2012-04-14 12:03:03 UTC (rev 45626)
+++ branches/soc-2011-tomato/source/blender/editors/space_clip/clip_editor.c 2012-04-14 12:03:09 UTC (rev 45627)
@@ -31,6 +31,8 @@
#include <stddef.h>
+#include "MEM_guardedalloc.h"
+
#include "BKE_main.h"
#include "BKE_movieclip.h"
#include "BKE_context.h"
@@ -40,6 +42,8 @@
#include "BLI_utildefines.h"
#include "BLI_math.h"
+#include "GPU_extensions.h"
+
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
@@ -47,6 +51,7 @@
#include "ED_clip.h"
#include "BIF_gl.h"
+#include "BIF_glutil.h"
#include "WM_api.h"
#include "WM_types.h"
@@ -314,3 +319,167 @@
{
ED_clip_point_stable_pos(C, event->mval[0], event->mval[1], &co[0], &co[1]);
}
+
+/* OpenGL draw context */
+
+typedef struct SpaceClipDrawContext {
+ int support_checked, buffers_supported;
+
+ GLuint texture; /* OGL texture ID */
+ short texture_allocated; /* flag if texture was allocated by glGenTextures */
+ struct ImBuf *texture_ibuf; /* image buffer for which texture was created */
+ int image_width, image_height; /* image width and height for which texture was created */
+ unsigned last_texture; /* ID of previously used texture, so it'll be restored after clip drawing */
+ int framenr;
+} SpaceClipDrawContext;
+
+int ED_space_clip_texture_buffer_supported(SpaceClip *sc)
+{
+ SpaceClipDrawContext *context = sc->draw_context;
+
+ if (!context) {
+ context = MEM_callocN(sizeof(SpaceClipDrawContext), "SpaceClipDrawContext");
+ sc->draw_context = context;
+ }
+
+ if (!context->support_checked) {
+ context->support_checked = TRUE;
+ context->buffers_supported = GPU_non_power_of_two_support();
+ }
+
+ return context->buffers_supported;
+}
+
+int ED_space_clip_load_movieclip_buffer(SpaceClip *sc, ImBuf *ibuf)
+{
+ SpaceClipDrawContext *context = sc->draw_context;
+ MovieClip *clip = ED_space_clip(sc);
+ int need_rebind = 0;
+
+ context->last_texture = glaGetOneInteger(GL_TEXTURE_2D);
+
+ /* image texture need to be rebinded if displaying another image buffer
+ * assuming displaying happens of footage frames only on which painting doesn't heppen.
+ * so not changed image buffer pointer means unchanged image content */
+ need_rebind |= context->texture_ibuf != ibuf;
+ need_rebind |= context->framenr != sc->user.framenr;
+
+ if (need_rebind) {
+ int width = ibuf->x, height = ibuf->y;
+ float *frect = NULL, *fscalerect = NULL;
+ unsigned int *rect = NULL, *scalerect = NULL;
+ int need_recreate = 0;
+
+ if (width > GL_MAX_TEXTURE_SIZE || height > GL_MAX_TEXTURE_SIZE)
+ return 0;
+
+ rect = ibuf->rect;
+ frect = ibuf->rect_float;
+
+ /* if image resolution changed (e.g. switched to proxy display) texture need to be recreated */
+ need_recreate = context->image_width != ibuf->x || context->image_height != ibuf->y;
+
+ if (context->texture_ibuf && need_recreate) {
+ glDeleteTextures(1, &context->texture);
+ context->texture_allocated = 0;
+ }
+
+#if 0
+ /* disabled for now because current tracking users have got NPOT textures
+ * working smoothly on their computers and forcing re-scaling during playback
+ * slows down playback a lot */
+
+ /* if videocard doesn't support NPOT textures, need to do rescaling */
+ if (!GPU_non_power_of_two_support()) {
+ if (!is_power_of_2_i(width) || !is_power_of_2_i(height)) {
+ width = power_of_2_max_i(width);
+ height = power_of_2_max_i(height);
+
+ if (ibuf->x != width || ibuf->y != height) {
+ if (frect) {
+ fscalerect= MEM_mallocN(width*width*sizeof(*fscalerect)*4, "fscalerect");
+ gluScaleImage(GL_RGBA, ibuf->x, ibuf->y, GL_FLOAT, ibuf->rect_float, width, height, GL_FLOAT, fscalerect);
+
+ frect = fscalerect;
+ }
+ else {
+ scalerect= MEM_mallocN(width*height*sizeof(*scalerect), "scalerect");
+ gluScaleImage(GL_RGBA, ibuf->x, ibuf->y, GL_UNSIGNED_BYTE, ibuf->rect, width, height, GL_UNSIGNED_BYTE, scalerect);
+
+ rect = scalerect;
+ }
+ }
+ }
+ }
+#endif
+
+ if (need_recreate || !context->texture_allocated) {
+ /* texture doesn't exist yet or need to be re-allocated because of changed dimensions */
+ int filter = GL_LINEAR;
+
+ /* non-scaled proxy shouldn;t use diltering */
+ if ((clip->flag & MCLIP_USE_PROXY) == 0 ||
+ ELEM(sc->user.render_size, MCLIP_PROXY_RENDER_SIZE_FULL, MCLIP_PROXY_RENDER_SIZE_100))
+ {
+ filter = GL_NEAREST;
+ }
+
+ glGenTextures(1, &context->texture);
+ glBindTexture(GL_TEXTURE_2D, context->texture);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ }
+ else {
+ /* if texture doesn't need to be reallocated itself, just bind it so
+ * loading of image will happen to a proper texture */
+ glBindTexture(GL_TEXTURE_2D, context->texture);
+ }
+
+ if (frect)
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16, width, height, 0, GL_RGBA, GL_FLOAT, frect);
+ else
@@ Diff output truncated at 10240 characters. @@
More information about the Bf-blender-cvs
mailing list