forked from bartvdbraak/blender
Draw checker backdrop for sequencer when in RGBA mode
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parent
c7e2a31bf2
commit
3657f3d938
@ -1050,6 +1050,17 @@ void draw_image_seq(const bContext *C, Scene *scene, ARegion *ar, SpaceSeq *sseq
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/* setting up the view - actual drawing starts here */
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UI_view2d_view_ortho(v2d);
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/* only draw alpha for main buffer */
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if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
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if (sseq->flag & SEQ_USE_ALPHA) {
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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fdrawcheckerboard(v2d->tot.xmin, v2d->tot.ymin, v2d->tot.xmax, v2d->tot.ymax);
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glColor4f(1.0, 1.0, 1.0, 1.0);
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}
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}
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last_texid = glaGetOneInteger(GL_TEXTURE_2D);
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glEnable(GL_TEXTURE_2D);
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glGenTextures(1, (GLuint *)&texid);
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@ -1061,14 +1072,6 @@ void draw_image_seq(const bContext *C, Scene *scene, ARegion *ar, SpaceSeq *sseq
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, ibuf->x, ibuf->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, display_buffer);
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/* only draw alpha for main buffer */
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if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
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if (sseq->flag & SEQ_USE_ALPHA) {
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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}
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}
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glBegin(GL_QUADS);
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if (draw_overlay) {
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@ -1100,7 +1103,7 @@ void draw_image_seq(const bContext *C, Scene *scene, ARegion *ar, SpaceSeq *sseq
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glEnd();
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glBindTexture(GL_TEXTURE_2D, last_texid);
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glDisable(GL_TEXTURE_2D);
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if (sseq->flag & SEQ_USE_ALPHA)
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if (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA)
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glDisable(GL_BLEND);
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glDeleteTextures(1, &texid);
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