From 2ec234ff67496c1410df2ab14c03e144889adc8d Mon Sep 17 00:00:00 2001 From: clayjohn Date: Tue, 18 Oct 2022 17:59:31 -0700 Subject: Add 2D shadows and canvas SDF to OpenGL3 renderer This is an initial implementation based on the current RD implementation Performance will improve later --- drivers/gles3/storage/texture_storage.h | 58 +++++++++++++++------------------ 1 file changed, 26 insertions(+), 32 deletions(-) (limited to 'drivers/gles3/storage/texture_storage.h') diff --git a/drivers/gles3/storage/texture_storage.h b/drivers/gles3/storage/texture_storage.h index dbe39428ac..0b025c4370 100644 --- a/drivers/gles3/storage/texture_storage.h +++ b/drivers/gles3/storage/texture_storage.h @@ -39,6 +39,8 @@ #include "servers/rendering/renderer_compositor.h" #include "servers/rendering/storage/texture_storage.h" +#include "../shaders/canvas_sdf.glsl.gen.h" + // This must come first to avoid windows.h mess #include "platform_config.h" #ifndef OPENGL_INCLUDE_H @@ -84,18 +86,8 @@ namespace GLES3 { #define _GL_TEXTURE_EXTERNAL_OES 0x8D65 -#ifdef GLES_OVER_GL -#define _GL_HALF_FLOAT_OES 0x140B -#else -#define _GL_HALF_FLOAT_OES 0x8D61 -#endif - #define _EXT_TEXTURE_CUBE_MAP_SEAMLESS 0x884F -#define _RED_OES 0x1903 - -#define _DEPTH_COMPONENT24_OES 0x81A6 - #ifndef GLES_OVER_GL #define glClearDepth glClearDepthf #endif //!GLES_OVER_GL @@ -128,17 +120,6 @@ struct CanvasTexture { RS::CanvasItemTextureRepeat texture_repeat = RS::CANVAS_ITEM_TEXTURE_REPEAT_DEFAULT; }; -/* CANVAS SHADOW */ - -struct CanvasLightShadow { - RID self; - int size; - int height; - GLuint fbo; - GLuint depth; - GLuint distance; //for older devices -}; - struct RenderTarget; struct Texture { @@ -337,6 +318,15 @@ struct RenderTarget { GLuint color_type = GL_UNSIGNED_BYTE; Image::Format image_format = Image::FORMAT_RGBA8; + GLuint sdf_texture_write = 0; + GLuint sdf_texture_write_fb = 0; + GLuint sdf_texture_process[2] = { 0, 0 }; + GLuint sdf_texture_read = 0; + RS::ViewportSDFOversize sdf_oversize = RS::VIEWPORT_SDF_OVERSIZE_120_PERCENT; + RS::ViewportSDFScale sdf_scale = RS::VIEWPORT_SDF_SCALE_50_PERCENT; + Size2i process_size; + bool sdf_enabled = false; + bool is_transparent = false; bool direct_to_screen = false; @@ -362,10 +352,6 @@ private: RID_Owner canvas_texture_owner; - /* CANVAS SHADOW */ - - RID_PtrOwner canvas_light_shadow_owner; - /* Texture API */ mutable RID_Owner texture_owner; @@ -411,6 +397,14 @@ private: void _clear_render_target(RenderTarget *rt); void _update_render_target(RenderTarget *rt); void _create_render_target_backbuffer(RenderTarget *rt); + void _render_target_allocate_sdf(RenderTarget *rt); + void _render_target_clear_sdf(RenderTarget *rt); + Rect2i _render_target_get_sdf_rect(const RenderTarget *rt) const; + + struct RenderTargetSDF { + CanvasSdfShaderGLES3 shader; + RID shader_version; + } sdf_shader; public: static TextureStorage *get_singleton(); @@ -437,10 +431,6 @@ public: virtual void canvas_texture_set_texture_filter(RID p_item, RS::CanvasItemTextureFilter p_filter) override; virtual void canvas_texture_set_texture_repeat(RID p_item, RS::CanvasItemTextureRepeat p_repeat) override; - /* CANVAS SHADOW */ - - RID canvas_light_shadow_buffer_create(int p_width); - /* Texture API */ Texture *get_texture(RID p_rid) { @@ -586,9 +576,13 @@ public: void render_target_disable_clear_request(RID p_render_target) override; void render_target_do_clear_request(RID p_render_target) override; - void render_target_set_sdf_size_and_scale(RID p_render_target, RS::ViewportSDFOversize p_size, RS::ViewportSDFScale p_scale) override; - Rect2i render_target_get_sdf_rect(RID p_render_target) const override; - void render_target_mark_sdf_enabled(RID p_render_target, bool p_enabled) override; + virtual void render_target_set_sdf_size_and_scale(RID p_render_target, RS::ViewportSDFOversize p_size, RS::ViewportSDFScale p_scale) override; + virtual Rect2i render_target_get_sdf_rect(RID p_render_target) const override; + GLuint render_target_get_sdf_texture(RID p_render_target); + GLuint render_target_get_sdf_framebuffer(RID p_render_target); + void render_target_sdf_process(RID p_render_target); + virtual void render_target_mark_sdf_enabled(RID p_render_target, bool p_enabled) override; + bool render_target_is_sdf_enabled(RID p_render_target) const; void render_target_copy_to_back_buffer(RID p_render_target, const Rect2i &p_region, bool p_gen_mipmaps); void render_target_clear_back_buffer(RID p_render_target, const Rect2i &p_region, const Color &p_color); -- cgit v1.2.3