X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=main.cpp;h=4e2d303f893fc77525fdf558a70ac9e536a7143f;hp=869371626882eb506cf4cd9f617de4f9c17fb977;hb=4faa7b922355c43f89efd62418dfa03ebf06b9c2;hpb=d3cf1194740dbecde06f5e721a7e1910437a7666

diff --git a/main.cpp b/main.cpp
index 8693716..4e2d303 100644
--- a/main.cpp
+++ b/main.cpp
@@ -175,9 +175,11 @@ int main(int argc, char **argv)
 	chain.add_output(inout_format);
 	chain.finalize();
 
-	// generate a PDO to hold the data we read back with glReadPixels()
-	// (Intel/DRI goes into a slow path if we don't read to PDO)
-	glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 1);
+	// generate a PBO to hold the data we read back with glReadPixels()
+	// (Intel/DRI goes into a slow path if we don't read to PBO)
+	GLuint pbo;
+	glGenBuffers(1, &pbo);
+	glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
 	glBufferData(GL_PIXEL_PACK_BUFFER_ARB, WIDTH * HEIGHT * 4, NULL, GL_STREAM_READ);
 
 	make_hsv_wheel_texture();
@@ -220,7 +222,7 @@ int main(int argc, char **argv)
 		input->set_pixel_data(src_img);
 		chain.render_to_screen();
 		
-		glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 1);
+		glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
 		check_error();
 		glReadPixels(0, 0, WIDTH, HEIGHT, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, BUFFER_OFFSET(0));
 		check_error();
@@ -242,7 +244,7 @@ int main(int argc, char **argv)
 		SDL_GL_SwapBuffers();
 		check_error();
 
-		glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 1);
+		glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
 		check_error();
 		unsigned char *screenbuf = (unsigned char *)glMapBuffer(GL_PIXEL_PACK_BUFFER_ARB, GL_READ_ONLY);
 		check_error();