diff options
Diffstat (limited to 'src/plugins.c')
| -rw-r--r-- | src/plugins.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/plugins.c b/src/plugins.c new file mode 100644 index 0000000..061534c --- /dev/null +++ b/src/plugins.c @@ -0,0 +1,138 @@ +#include "../include/plugins.h" +#include "../include/utils.h" +#include <stdio.h> +#include <string.h> +#include <dlfcn.h> +#include <assert.h> + +static int color_depth_to_gl_internal_format(gsr_plugin_color_depth color_depth) { + switch(color_depth) { + case GSR_PLUGIN_COLOR_DEPTH_8_BITS: + return GL_RGBA8; + case GSR_PLUGIN_COLOR_DEPTH_10_BITS: + return GL_RGBA16; + } + assert(false); + return GL_RGBA8; +} + +bool gsr_plugins_init(gsr_plugins *self, gsr_plugin_init_params init_params, gsr_egl *egl) { + memset(self, 0, sizeof(*self)); + self->init_params = init_params; + self->egl = egl; + + /* TODO: GL_RGB8? */ + const unsigned int texture = gl_create_texture(egl, init_params.width, init_params.height, color_depth_to_gl_internal_format(init_params.color_depth), GL_RGBA, GL_LINEAR); + if(texture == 0) { + fprintf(stderr, "gsr error: gsr_plugins_init failed to create texture\n"); + return false; + } + self->texture = texture; + + gsr_color_conversion_params color_conversion_params = { + .egl = egl, + .destination_color = GSR_DESTINATION_COLOR_RGB8, /* TODO: Support 10-bits, use init_params.color_depth */ + .destination_textures[0] = self->texture, + .destination_textures_size[0] = (vec2i){ init_params.width, init_params.height }, + .num_destination_textures = 1, + .color_range = GSR_COLOR_RANGE_FULL, + .load_external_image_shader = false, + //.force_graphics_shader = false, + }; + color_conversion_params.destination_textures[0] = self->texture; + + if(gsr_color_conversion_init(&self->color_conversion, &color_conversion_params) != 0) { + fprintf(stderr, "gsr error: gsr_plugins_init failed to create color conversion\n"); + gsr_plugins_deinit(self); + return false; + } + gsr_color_conversion_clear(&self->color_conversion); + + return true; +} + +void gsr_plugins_deinit(gsr_plugins *self) { + for(int i = self->num_plugins - 1; i >= 0; --i) { + gsr_plugin *plugin = &self->plugins[i]; + plugin->gsr_plugin_deinit(plugin->data.userdata); + fprintf(stderr, "gsr info: unloaded plugin: %s\n", plugin->data.name); + } + self->num_plugins = 0; + + if(self->texture > 0) { + self->egl->glDeleteTextures(1, &self->texture); + self->texture = 0; + } + + gsr_color_conversion_deinit(&self->color_conversion); +} + +bool gsr_plugins_load_plugin(gsr_plugins *self, const char *plugin_filepath) { + if(self->num_plugins >= GSR_MAX_PLUGINS) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed, more plugins can't load more than %d plugins. Report this as an issue\n", GSR_MAX_PLUGINS); + return false; + } + + gsr_plugin plugin; + memset(&plugin, 0, sizeof(plugin)); + + plugin.lib = dlopen(plugin_filepath, RTLD_LAZY); + if(!plugin.lib) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed to load \"%s\", error: %s\n", plugin_filepath, dlerror()); + return false; + } + + plugin.gsr_plugin_init = dlsym(plugin.lib, "gsr_plugin_init"); + if(!plugin.gsr_plugin_init) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed to find \"gsr_plugin_init\" in plugin \"%s\"\n", plugin_filepath); + goto fail; + } + + plugin.gsr_plugin_deinit = dlsym(plugin.lib, "gsr_plugin_deinit"); + if(!plugin.gsr_plugin_deinit) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed to find \"gsr_plugin_deinit\" in plugin \"%s\"\n", plugin_filepath); + goto fail; + } + + if(!plugin.gsr_plugin_init(&self->init_params, &plugin.data)) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed to load plugin \"%s\", gsr_plugin_init in the plugin failed\n", plugin_filepath); + goto fail; + } + + if(!plugin.data.name) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed to load plugin \"%s\", the plugin didn't set the name (gsr_plugin_init_return.name)\n", plugin_filepath); + goto fail; + } + + if(plugin.data.version == 0) { + fprintf(stderr, "gsr error: gsr_plugins_load_plugin failed to load plugin \"%s\", the plugin didn't set the version (gsr_plugin_init_return.version)\n", plugin_filepath); + goto fail; + } + + fprintf(stderr, "gsr info: loaded plugin: %s, name: %s, version: %u\n", plugin_filepath, plugin.data.name, plugin.data.version); + self->plugins[self->num_plugins] = plugin; + ++self->num_plugins; + return true; + + fail: + dlclose(plugin.lib); + return false; +} + +void gsr_plugins_draw(gsr_plugins *self) { + const gsr_plugin_draw_params params = { + .width = self->init_params.width, + .height = self->init_params.height, + }; + + self->egl->glBindFramebuffer(GL_FRAMEBUFFER, self->color_conversion.framebuffers[0]); + self->egl->glViewport(0, 0, self->init_params.width, self->init_params.height); + + for(int i = 0; i < self->num_plugins; ++i) { + const gsr_plugin *plugin = &self->plugins[i]; + if(plugin->data.draw) + plugin->data.draw(¶ms, plugin->data.userdata); + } + + self->egl->glBindFramebuffer(GL_FRAMEBUFFER, 0); +} |