DRW: Color Management improvement

Reviewed By: brecht sergey jbakker

Differential Revision: http://developer.blender.org/D6729

1 files changed, 63 insertions, 0 deletions

diff --git a/source/blender/draw/intern/draw_color_management.c b/source/blender/draw/intern/draw_color_management.c
new file mode 100644
index 00000000000..33000d1ecd0
--- /dev/null
+++ b/source/blender/draw/intern/draw_color_management.c
@@ -0,0 +1,63 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright 2020, Blender Foundation.
+ */
+
+/** \file
+ * \ingroup draw
+ */
+
+#include <stdio.h>
+
+#include "draw_manager.h"
+
+#include "DRW_render.h"
+
+#include "GPU_batch.h"
+#include "GPU_framebuffer.h"
+#include "GPU_matrix.h"
+#include "GPU_texture.h"
+
+#include "BKE_colortools.h"
+
+#include "IMB_colormanagement.h"
+
+#include "draw_color_management.h"
+
+/* -------------------------------------------------------------------- */
+/** \name Color Management
+ * \{ */
+
+/* Draw texture to framebuffer without any color transforms */
+void DRW_transform_none(GPUTexture *tex)
+{
+  drw_state_set(DRW_STATE_WRITE_COLOR);
+
+  GPU_matrix_identity_set();
+  GPU_matrix_identity_projection_set();
+
+  /* Draw as texture for final render (without immediate mode). */
+  GPUBatch *geom = DRW_cache_fullscreen_quad_get();
+  GPU_batch_program_set_builtin(geom, GPU_SHADER_2D_IMAGE_COLOR);
+  GPU_batch_uniform_4f(geom, "color", 1.0f, 1.0f, 1.0f, 1.0f);
+  GPU_batch_uniform_1i(geom, "image", 0);
+
+  GPU_texture_bind(tex, 0);
+  GPU_batch_draw(geom);
+  GPU_texture_unbind(tex);
+}
+
+/** \} */