1 files changed, 78 insertions, 0 deletions
diff --git a/include/color_conversion.h b/include/color_conversion.h
new file mode 100644
index 0000000..9157712
--- /dev/null
+++ b/include/color_conversion.h
@@ -0,0 +1,78 @@
+#ifndef GSR_COLOR_CONVERSION_H
+#define GSR_COLOR_CONVERSION_H
+
+#include "shader.h"
+#include "defs.h"
+#include "vec2.h"
+#include <stdbool.h>
+
+#define GSR_COLOR_CONVERSION_MAX_GRAPHICS_SHADERS 12
+#define GSR_COLOR_CONVERSION_MAX_FRAMEBUFFERS 2
+
+typedef enum {
+    GSR_SOURCE_COLOR_RGB,
+    GSR_SOURCE_COLOR_BGR,
+    GSR_SOURCE_COLOR_YUYV
+} gsr_source_color;
+
+typedef enum {
+    GSR_DESTINATION_COLOR_NV12, /* YUV420, BT709, 8-bit */
+    GSR_DESTINATION_COLOR_P010, /* YUV420, BT2020, 10-bit */
+    GSR_DESTINATION_COLOR_RGB8
+} gsr_destination_color;
+
+typedef enum {
+    GSR_ROT_0,
+    GSR_ROT_90,
+    GSR_ROT_180,
+    GSR_ROT_270
+} gsr_rotation;
+
+typedef enum {
+    GSR_FLIP_NONE       = 0,
+    GSR_FLIP_HORIZONTAL = (1 << 0),
+    GSR_FLIP_VERTICAL   = (1 << 1)
+} gsr_flip;
+
+typedef struct {
+    int rotation_matrix;
+    int offset;
+} gsr_color_graphics_uniforms;
+
+typedef struct {
+    gsr_egl *egl;
+
+    gsr_destination_color destination_color;
+
+    unsigned int destination_textures[2];
+    vec2i destination_textures_size[2];
+    int num_destination_textures;
+
+    gsr_color_range color_range;
+    bool load_external_image_shader;
+} gsr_color_conversion_params;
+
+typedef struct {
+    gsr_color_conversion_params params;
+
+    gsr_color_graphics_uniforms graphics_uniforms[GSR_COLOR_CONVERSION_MAX_GRAPHICS_SHADERS];
+    gsr_shader graphics_shaders[GSR_COLOR_CONVERSION_MAX_GRAPHICS_SHADERS];
+
+    unsigned int framebuffers[GSR_COLOR_CONVERSION_MAX_FRAMEBUFFERS];
+
+    unsigned int vertex_array_object_id;
+    unsigned int vertex_buffer_object_id;
+
+    bool schedule_clear;
+} gsr_color_conversion;
+
+int gsr_color_conversion_init(gsr_color_conversion *self, const gsr_color_conversion_params *params);
+void gsr_color_conversion_deinit(gsr_color_conversion *self);
+
+void gsr_color_conversion_draw(gsr_color_conversion *self, unsigned int texture_id, vec2i destination_pos, vec2i destination_size, vec2i source_pos, vec2i source_size, vec2i texture_size, gsr_rotation rotation, gsr_flip flip, gsr_source_color source_color, bool external_texture);
+void gsr_color_conversion_clear(gsr_color_conversion *self);
+void gsr_color_conversion_read_destination_texture(gsr_color_conversion *self, int destination_texture_index, int x, int y, int width, int height, unsigned int color_format, unsigned int data_format, void *pixels);
+
+gsr_rotation gsr_monitor_rotation_to_rotation(gsr_monitor_rotation monitor_rotation);
+
+#endif /* GSR_COLOR_CONVERSION_H */