From f22fc4ca355b1eeee0c0299fead95356ef50526d Mon Sep 17 00:00:00 2001 From: Sylvain Date: Tue, 16 Mar 2021 15:07:44 +0100 Subject: [PATCH] Add API: SDL_Vertex type and SDL_RenderGeometry --- include/SDL_render.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/include/SDL_render.h b/include/SDL_render.h index 8a8bf8ed6..9d4be913a 100644 --- a/include/SDL_render.h +++ b/include/SDL_render.h @@ -137,6 +137,17 @@ typedef struct SDL_Renderer SDL_Renderer; struct SDL_Texture; typedef struct SDL_Texture SDL_Texture; +/** + * \brief Vertex structure + */ +typedef struct SDL_Vertex +{ + SDL_FPoint position; /**< Vertex position, in SDL_Renderer coordinates */ + SDL_Color color; /**< Vertex color */ + SDL_FPoint tex_coord; /**< Texture coordinates (0..texture width, 0..texture height), + if needed */ +} SDL_Vertex; + /* Function prototypes */ @@ -1442,6 +1453,26 @@ extern DECLSPEC int SDLCALL SDL_RenderCopyExF(SDL_Renderer * renderer, const SDL_FPoint *center, const SDL_RendererFlip flip); +/** + * \brief Render a list of triangles, optionally using a texture and indices into the vertex array + * Color and alpha modulation is done per vertex (SDL_SetTextureColorMod and SDL_SetTextureAlphaMod are ignored). + * + * \param texture (optional) The SDL texture to use. + * \param vertices Vertices. + * \param num_vertices Number of vertices. + * \param indices (optional) An array of integer indices into the 'vertices' array, if NULL all vertices will be rendered in sequential order. + * \param num_indices Number of indices. + * + * \sa SDL_Vertex + * + * \return 0 on success, or -1 if the operation is not supported + */ +extern DECLSPEC int SDLCALL SDL_RenderGeometry(SDL_Renderer *renderer, + SDL_Texture *texture, + SDL_Vertex *vertices, int num_vertices, + int *indices, int num_indices); + + /** * Read pixels from the current rendering target to an array of pixels. *