[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [42407] branches/soc-2011-tomato/source/ blender/editors/interface/interface_draw.c: Use own bilinear interpolation function for preview widget sampling
Sergey Sharybin
sergey.vfx at gmail.com
Sun Dec 4 17:07:55 CET 2011
Revision: 42407
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=42407
Author: nazgul
Date: 2011-12-04 16:07:50 +0000 (Sun, 04 Dec 2011)
Log Message:
-----------
Use own bilinear interpolation function for preview widget sampling
Solves issue with image clamping, but issue with dark edge is still present
Modified Paths:
--------------
branches/soc-2011-tomato/source/blender/editors/interface/interface_draw.c
Modified: branches/soc-2011-tomato/source/blender/editors/interface/interface_draw.c
===================================================================
--- branches/soc-2011-tomato/source/blender/editors/interface/interface_draw.c 2011-12-04 15:49:14 UTC (rev 42406)
+++ branches/soc-2011-tomato/source/blender/editors/interface/interface_draw.c 2011-12-04 16:07:50 UTC (rev 42407)
@@ -1471,12 +1471,27 @@
fdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
+static ImBuf *scale_trackpreview_ibuf(ImBuf *ibuf, float zoomx, float zoomy)
+{
+ ImBuf *scaleibuf;
+ int x, y, w= ibuf->x*zoomx, h= ibuf->y*zoomy;
+
+ scaleibuf= IMB_allocImBuf(w, h, 32, IB_rect);
+
+ for(y= 0; y<scaleibuf->y; y++) {
+ for (x= 0; x<scaleibuf->x; x++) {
+ bilinear_interpolation(ibuf, scaleibuf, ((float)x)/zoomx, ((float)y)/zoomy, x, y);
+ }
+ }
+
+ return scaleibuf;
+}
+
void ui_draw_but_TRACKPREVIEW(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol), rcti *recti)
{
rctf rect;
int ok= 0;
GLint scissor[4];
- int preview_width, preview_height;
MovieClipScopes *scopes = (MovieClipScopes *)but->poin;
rect.xmin = (float)recti->xmin+1;
@@ -1484,20 +1499,12 @@
rect.ymin = (float)recti->ymin+SCOPE_RESIZE_PAD+2;
rect.ymax = (float)recti->ymax-1;
- preview_width = rect.xmax - rect.xmin;
- preview_height = rect.ymax - rect.ymin;
-
- glPushAttrib(GL_ALL_ATTRIB_BITS);
-
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
/* need scissor test, preview image can draw outside of boundary */
glGetIntegerv(GL_VIEWPORT, scissor);
- glScissor(ar->winrct.xmin + (rect.xmin-1),
- ar->winrct.ymin+(rect.ymin-1),
- (rect.xmax+1)-(rect.xmin-1),
- (rect.ymax+1)-(rect.ymin-1));
+ glScissor(ar->winrct.xmin + (rect.xmin-1), ar->winrct.ymin+(rect.ymin-1), (rect.xmax+1)-(rect.xmin-1), (rect.ymax+1)-(rect.ymin-1));
if(scopes->track_disabled) {
glColor4f(0.7f, 0.3f, 0.3f, 0.3f);
@@ -1507,66 +1514,30 @@
ok= 1;
}
else if(scopes->track_preview) {
- int a;
+ int a, off_x, off_y;
+ float zoomx, zoomy;
ImBuf *drawibuf;
- GLuint preview_texture;
- float pattern_width, pattern_height;
- pattern_width = scopes->track_preview->x;
- pattern_height = scopes->track_preview->y;
-
glPushMatrix();
/* draw content of pattern area */
- glScissor(ar->winrct.xmin + rect.xmin,
- ar->winrct.ymin + rect.ymin,
- scissor[2],
- scissor[3]);
+ glScissor(ar->winrct.xmin+rect.xmin, ar->winrct.ymin+rect.ymin, scissor[2], scissor[3]);
- /* make a texture from the pattern */
- /* TODO(keir): add a switch for bilinear filtering or not. */
- glGenTextures(1, &preview_texture);
- glBindTexture(GL_TEXTURE_2D, preview_texture);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
- scopes->track_preview->x,
- scopes->track_preview->y,
- 0, GL_RGBA, GL_UNSIGNED_BYTE,
- scopes->track_preview->rect);
- glEnable(GL_TEXTURE_2D);
+ zoomx= (rect.xmax-rect.xmin) / (scopes->track_preview->x-2.0f);
+ zoomy= (rect.ymax-rect.ymin) / (scopes->track_preview->y-2.0f);
- /* reposition so the preview area goes from -0.5 to 0.5 on x and y. */
- glTranslatef((rect.xmin + rect.xmax) / 2.0f,
- (rect.ymin + rect.ymax) / 2.0f, 0.0f);
- glScalef(preview_width, preview_height, 1.0f);
+ off_x= ((int)scopes->track_pos[0]-scopes->track_pos[0]-0.5f)*zoomx;
+ off_y= ((int)scopes->track_pos[1]-scopes->track_pos[1]-0.5f)*zoomy;
- /* this matrix is reused below to draw the crosshair */
- glPushMatrix();
+ drawibuf= scale_trackpreview_ibuf(scopes->track_preview, zoomx, zoomy);
+ glaDrawPixelsSafe(off_x+rect.xmin, off_y+rect.ymin, rect.xmax-rect.xmin+1.f-off_x, rect.ymax-rect.ymin+1.f-off_y, drawibuf->x, GL_RGBA, GL_UNSIGNED_BYTE, drawibuf->rect);
- /* make scale match the pattern and apply the subpixel marker translation. */
- glScalef(1.0f / pattern_width,
- 1.0f / pattern_width, 1.0f);
- glTranslatef(-scopes->track_pos[0],
- -scopes->track_pos[1], 0.f);
- glScalef(pattern_width, pattern_height, 1.0f);
+ IMB_freeImBuf(drawibuf);
- /* draw the pattern over the preview area. */
- glBegin(GL_QUADS);
- glTexCoord2f(0.0f,0.0f); glVertex2f(0.0f, 0.0f);
- glTexCoord2f(1.0f,0.0f); glVertex2f(1.0f, 0.0f);
- glTexCoord2f(1.0f,1.0f); glVertex2f(1.0f, 1.0f);
- glTexCoord2f(0.0f,1.0f); glVertex2f(0.0f, 1.0f);
- glEnd();
+ /* draw cross for pizel position */
+ glTranslatef(off_x+rect.xmin+scopes->track_pos[0]*zoomx, off_y+rect.ymin+scopes->track_pos[1]*zoomy, 0.f);
+ glScissor(ar->winrct.xmin + rect.xmin, ar->winrct.ymin+rect.ymin, rect.xmax-rect.xmin, rect.ymax-rect.ymin);
- glDeleteTextures(1, &preview_texture);
- glPopMatrix();
-
- /* draw the crosshair */
for(a= 0; a< 2; a++) {
if(a==1) {
glLineStipple(3, 0xaaaa);
@@ -1578,14 +1549,14 @@
}
glBegin(GL_LINES);
- glVertex2f(-0.10f, 0.0f);
- glVertex2f( 0.10f, 0.0f);
- glVertex2f( 0.0f, -0.10f);
- glVertex2f( 0.0f, 0.10f);
+ glVertex2f(-10.0f, 0.0f);
+ glVertex2f(10.0f, 0.0f);
+ glVertex2f(0.0f, -10.0f);
+ glVertex2f(0.0f, 10.0f);
glEnd();
}
- glDisable(GL_LINE_STIPPLE);
+ glDisable(GL_LINE_STIPPLE);
glPopMatrix();
ok= 1;
@@ -1600,7 +1571,7 @@
/* outline, scale gripper */
draw_scope_end(&rect, scissor);
- glPopAttrib();
+ glDisable(GL_BLEND);
}
/* ****************************************************** */
More information about the Bf-blender-cvs
mailing list