Fix an issue where video frames would not be properly shown, most commonly in previews.

diff --git a/mixer.cpp b/mixer.cpp
index 421efea9f13a096a16b8460ae42152ead88fa164..fc56de3b3038153c85980d2e26836f74d6fb4c87 100644 (file)
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -715,6 +715,13 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                        case PixelFormat_8BitBGRA: {
                                size_t field_start = video_offset + video_format.stride * field_start_line;
                                upload_texture(userdata->tex_rgba[field], video_format.width, video_format.height, video_format.stride, interlaced_stride, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, field_start);
+                               // These could be asked to deliver mipmaps at any time.
+                               glBindTexture(GL_TEXTURE_2D, userdata->tex_rgba[field]);
+                               check_error();
+                               glGenerateMipmap(GL_TEXTURE_2D);
+                               check_error();
+                               glBindTexture(GL_TEXTURE_2D, 0);
+                               check_error();
                                break;
                        }
                        default: