c9df41c1e2
Typedef pointers are unsafe. If you do: typedef struct bla *bla_t; then you cannot use it as a constant, such as: const bla_t, because that constant will be to the pointer itself rather than to the underlying data. I admit this was a fundamental mistake that must be corrected. All typedefs that were pointer types will now have their pointers removed from the type itself, and the pointers will be used when they are actually used as variables/parameters/returns instead. This does not break ABI though, which is pretty nice.
132 lines
3.0 KiB
C
132 lines
3.0 KiB
C
#include <obs-module.h>
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#define warn(format, ...) \
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blog(LOG_WARNING, "[image_source: '%s'] " format, \
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obs_source_get_name(context->source), ##__VA_ARGS__)
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struct image_source {
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obs_source_t *source;
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gs_texture_t *tex;
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uint32_t cx;
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uint32_t cy;
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};
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static const char *image_source_get_name(void)
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{
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return obs_module_text("ImageInput");
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}
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static void image_source_update(void *data, obs_data_t *settings)
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{
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struct image_source *context = data;
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const char *file = obs_data_get_string(settings, "file");
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obs_enter_graphics();
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if (context->tex) {
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gs_texture_destroy(context->tex);
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context->tex = NULL;
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}
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if (file && *file) {
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context->tex = gs_texture_create_from_file(file);
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if (context->tex) {
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context->cx = gs_texture_get_width(context->tex);
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context->cy = gs_texture_get_height(context->tex);
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} else {
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warn("failed to load texture '%s'", file);
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context->cx = 0;
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context->cy = 0;
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}
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}
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obs_leave_graphics();
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}
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static void *image_source_create(obs_data_t *settings, obs_source_t *source)
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{
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struct image_source *context = bzalloc(sizeof(struct image_source));
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context->source = source;
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image_source_update(context, settings);
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return context;
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}
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static void image_source_destroy(void *data)
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{
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struct image_source *context = data;
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obs_enter_graphics();
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gs_texture_destroy(context->tex);
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obs_leave_graphics();
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bfree(context);
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}
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static uint32_t image_source_getwidth(void *data)
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{
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struct image_source *context = data;
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return context->cx;
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}
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static uint32_t image_source_getheight(void *data)
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{
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struct image_source *context = data;
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return context->cy;
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}
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static void image_source_render(void *data, gs_effect_t *effect)
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{
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struct image_source *context = data;
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if (!context->tex)
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return;
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gs_reset_blend_state();
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gs_effect_set_texture(gs_effect_get_param_by_name(effect, "image"),
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context->tex);
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gs_draw_sprite(context->tex, 0, context->cx, context->cy);
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}
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static const char *image_filter =
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"All formats (*.bmp *.tga *.png *.jpeg *.jpg *.gif);;"
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"BMP Files (*.bmp);;"
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"Targa Files (*.tga);;"
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"PNG Files (*.png);;"
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"JPEG Files (*.jpeg *.jpg);;"
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"GIF Files (*.gif)";
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static obs_properties_t *image_source_properties(void)
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{
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obs_properties_t *props = obs_properties_create();
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obs_properties_add_path(props,
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"file", obs_module_text("File"),
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OBS_PATH_FILE, image_filter, NULL);
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return props;
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}
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static struct obs_source_info image_source_info = {
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.id = "image_source",
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.type = OBS_SOURCE_TYPE_INPUT,
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.output_flags = OBS_SOURCE_VIDEO,
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.get_name = image_source_get_name,
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.create = image_source_create,
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.destroy = image_source_destroy,
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.update = image_source_update,
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.get_width = image_source_getwidth,
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.get_height = image_source_getheight,
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.video_render = image_source_render,
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.get_properties = image_source_properties
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};
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OBS_DECLARE_MODULE()
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OBS_MODULE_USE_DEFAULT_LOCALE("image-source", "en-US")
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bool obs_module_load(void)
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{
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obs_register_source(&image_source_info);
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return true;
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}
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