Take screenshot with XGetImage on x11 to workaround nvidia driver (nvfbc) limitation that only allows one nvfbc session at a time

include/capture/kms.h

@@ -5,9 +5,7 @@
 
 typedef struct {
     gsr_egl *egl;
-    const char *display_to_capture; /* if this is "screen", then the first monitor is captured. A copy is made of this */
-    gsr_color_depth color_depth;
-    gsr_color_range color_range;
+    const char *display_to_capture; /* A copy is made of this */
     bool hdr;
     bool record_cursor;
     int fps;

include/capture/nvfbc.h

@@ -11,8 +11,6 @@ typedef struct {
     vec2i pos;
     vec2i size;
     bool direct_capture;
-    gsr_color_depth color_depth;
-    gsr_color_range color_range;
     bool record_cursor;
     vec2i output_resolution;
     vec2i region_size;

include/capture/portal.h

@@ -5,8 +5,6 @@
 
 typedef struct {
     gsr_egl *egl;
-    gsr_color_depth color_depth;
-    gsr_color_range color_range;
     bool record_cursor;
     bool restore_portal_session;
     /* If this is set to NULL then this defaults to $XDG_CONFIG_HOME/gpu-screen-recorder/restore_token ($XDG_CONFIG_HOME defaults to $HOME/.config) */

include/capture/xcomposite.h

@@ -8,9 +8,7 @@ typedef struct {
     gsr_egl *egl;
     unsigned long window;
     bool follow_focused; /* If this is set then |window| is ignored */
-    gsr_color_range color_range;
     bool record_cursor;
-    gsr_color_depth color_depth;
     vec2i output_resolution;
 } gsr_capture_xcomposite_params;
 

include/capture/ximage.h

@@ -0,0 +1,18 @@
+#ifndef GSR_CAPTURE_XIMAGE_H
+#define GSR_CAPTURE_XIMAGE_H
+
+#include "capture.h"
+#include "../vec2.h"
+
+typedef struct {
+    gsr_egl *egl;
+    const char *display_to_capture; /* A copy is made of this */
+    bool record_cursor;
+    vec2i output_resolution;
+    vec2i region_size;
+    vec2i region_position;
+} gsr_capture_ximage_params;
+
+gsr_capture* gsr_capture_ximage_create(const gsr_capture_ximage_params *params);
+
+#endif /* GSR_CAPTURE_XIMAGE_H */

include/egl.h

@@ -235,6 +235,7 @@ struct gsr_egl {
     void (*glTexParameteriv)(unsigned int target, unsigned int pname, const int *params);
     void (*glGetTexLevelParameteriv)(unsigned int target, int level, unsigned int pname, int *params);
     void (*glTexImage2D)(unsigned int target, int level, int internalFormat, int width, int height, int border, unsigned int format, unsigned int type, const void *pixels);
+    void (*glTexSubImage2D)(unsigned int target, int level, int xoffset, int yoffset, int width, int height, unsigned format, unsigned type, const void *pixels);
     void (*glGetTexImage)(unsigned int target, int level, unsigned int format, unsigned int type, void *pixels);
     void (*glGenFramebuffers)(int n, unsigned int *framebuffers);
     void (*glBindFramebuffer)(unsigned int target, unsigned int framebuffer);

include/image_writer.h

@@ -11,7 +11,8 @@ typedef enum {
 } gsr_image_format;
 
 typedef enum {
-    GSR_IMAGE_WRITER_SOURCE_OPENGL
+    GSR_IMAGE_WRITER_SOURCE_OPENGL,
+    GSR_IMAGE_WRITER_SOURCE_MEMORY
 } gsr_image_writer_source;
 
 typedef struct {
@@ -20,9 +21,12 @@ typedef struct {
     int width;
     int height;
     unsigned int texture;
+    const void *memory; /* Reference */
 } gsr_image_writer;
 
-bool gsr_image_writer_init(gsr_image_writer *self, gsr_image_writer_source source, gsr_egl *egl, int width, int height);
+bool gsr_image_writer_init_opengl(gsr_image_writer *self, gsr_egl *egl, int width, int height);
+/* |memory| is taken as a reference */
+bool gsr_image_writer_init_memory(gsr_image_writer *self, const void *memory, int width, int height);
 void gsr_image_writer_deinit(gsr_image_writer *self);
 
 /* Quality is between 1 and 100 where 100 is the max quality. Quality doesn't apply to lossless formats */

include/utils.h

@@ -69,4 +69,6 @@ bool vaapi_copy_egl_image_to_video_surface(gsr_egl *egl, EGLImage image, vec2i s
 
 vec2i scale_keep_aspect_ratio(vec2i from, vec2i to);
 
+unsigned int gl_create_texture(gsr_egl *egl, int width, int height, int internal_format, unsigned int format, int filter);
+
 #endif /* GSR_UTILS_H */