Core Graphics API ================= .. code:: cpp #include Graphics Enumerations --------------------- .. type:: enum gs_draw_mode Draw mode. Can be one of the following values: - GS_POINTS - Draws points - GS_LINES - Draws individual lines - GS_LINESTRIP - Draws a line strip - GS_TRIS - Draws individual triangles - GS_TRISTRIP - Draws a triangle strip .. type:: enum gs_color_format Color format. Can be one of the following values: - GS_UNKNOWN - Unknown format - GS_A8 - 8 bit alpha channel only - GS_R8 - 8 bit red channel only - GS_RGBA - RGBA, 8 bits per channel - GS_BGRX - BGRX, 8 bits per channel - GS_BGRA - BGRA, 8 bits per channel - GS_R10G10B10A2 - RGBA, 10 bits per channel except alpha, which is 2 bits - GS_RGBA16 - RGBA, 16 bits per channel - GS_R16 - 16 bit red channel only - GS_RGBA16F - RGBA, 16 bit floating point per channel - GS_RGBA32F - RGBA, 32 bit floating point per channel - GS_RG16F - 16 bit floating point red and green channels only - GS_RG32F - 32 bit floating point red and green channels only - GS_R16F - 16 bit floating point red channel only - GS_R32F - 32 bit floating point red channel only - GS_DXT1 - Compressed DXT1 - GS_DXT3 - Compressed DXT3 - GS_DXT5 - Compressed DXT5 .. type:: enum gs_zstencil_format Z-Stencil buffer format. Can be one of the following values: - GS_ZS_NONE - No Z-stencil buffer - GS_Z16 - 16 bit Z buffer - GS_Z24_S8 - 24 bit Z buffer, 8 bit stencil - GS_Z32F - 32 bit floating point Z buffer - GS_Z32F_S8X24 - 32 bit floating point Z buffer, 8 bit stencil .. type:: enum gs_index_type Index buffer type. Can be one of the following values: - GS_UNSIGNED_SHORT - 16 bit index - GS_UNSIGNED_LONG - 32 bit index .. type:: enum gs_cull_mode Cull mode. Can be one of the following values: - GS_BACK - Cull back faces - GS_FRONT - Cull front faces - GS_NEITHER - Cull neither .. type:: enum gs_blend_type Blend type. Can be one of the following values: - GS_BLEND_ZERO - GS_BLEND_ONE - GS_BLEND_SRCCOLOR - GS_BLEND_INVSRCCOLOR - GS_BLEND_SRCALPHA - GS_BLEND_INVSRCALPHA - GS_BLEND_DSTCOLOR - GS_BLEND_INVDSTCOLOR - GS_BLEND_DSTALPHA - GS_BLEND_INVDSTALPHA - GS_BLEND_SRCALPHASAT .. type:: enum gs_depth_test Depth test type. Can be one of the following values: - GS_NEVER - GS_LESS - GS_LEQUAL - GS_EQUAL - GS_GEQUAL - GS_GREATER - GS_NOTEQUAL - GS_ALWAYS .. type:: enum gs_stencil_side Stencil side. Can be one of the following values: - GS_STENCIL_FRONT=1 - GS_STENCIL_BACK - GS_STENCIL_BOTH .. type:: enum gs_stencil_op_type Stencil operation type. Can be one of the following values: - GS_KEEP - GS_ZERO - GS_REPLACE - GS_INCR - GS_DECR - GS_INVERT .. type:: enum gs_cube_sides Cubemap side. Can be one of the following values: - GS_POSITIVE_X - GS_NEGATIVE_X - GS_POSITIVE_Y - GS_NEGATIVE_Y - GS_POSITIVE_Z - GS_NEGATIVE_Z .. type:: enum gs_sample_filter Sample filter type. Can be one of the following values: - GS_FILTER_POINT - GS_FILTER_LINEAR - GS_FILTER_ANISOTROPIC - GS_FILTER_MIN_MAG_POINT_MIP_LINEAR - GS_FILTER_MIN_POINT_MAG_LINEAR_MIP_POINT - GS_FILTER_MIN_POINT_MAG_MIP_LINEAR - GS_FILTER_MIN_LINEAR_MAG_MIP_POINT - GS_FILTER_MIN_LINEAR_MAG_POINT_MIP_LINEAR - GS_FILTER_MIN_MAG_LINEAR_MIP_POINT .. type:: enum gs_address_mode Address mode. Can be one of the following values: - GS_ADDRESS_CLAMP - GS_ADDRESS_WRAP - GS_ADDRESS_MIRROR - GS_ADDRESS_BORDER - GS_ADDRESS_MIRRORONCE .. type:: enum gs_texture_type Texture type. Can be one of the following values: - GS_TEXTURE_2D - GS_TEXTURE_3D - GS_TEXTURE_CUBE Graphics Structures ------------------- .. type:: struct gs_monitor_info .. member:: int gs_monitor_info.rotation_degrees .. member:: long gs_monitor_info.x .. member:: long gs_monitor_info.y .. member:: long gs_monitor_info.cx .. member:: long gs_monitor_info.cy --------------------- .. type:: struct gs_tvertarray .. member:: size_t gs_tvertarray.width .. member:: void *gs_tvertarray.array --------------------- .. type:: struct gs_vb_data .. member:: size_t gs_vb_data.num .. member:: struct vec3 *gs_vb_data.points .. member:: struct vec3 *gs_vb_data.normals .. member:: struct vec3 *gs_vb_data.tangents .. member:: uint32_t *gs_vb_data.colors .. member:: size_t gs_vb_data.num_tex .. member:: struct gs_tvertarray *gs_vb_data.tvarray --------------------- .. type:: struct gs_sampler_info .. member:: enum gs_sample_filter gs_sampler_info.filter .. member:: enum gs_address_mode gs_sampler_info.address_u .. member:: enum gs_address_mode gs_sampler_info.address_v .. member:: enum gs_address_mode gs_sampler_info.address_w .. member:: int gs_sampler_info.max_anisotropy .. member:: uint32_t gs_sampler_info.border_color --------------------- .. type:: struct gs_display_mode .. member:: uint32_t gs_display_mode.width .. member:: uint32_t gs_display_mode.height .. member:: uint32_t gs_display_mode.bits .. member:: uint32_t gs_display_mode.freq --------------------- .. type:: struct gs_rect .. member:: int gs_rect.x .. member:: int gs_rect.y .. member:: int gs_rect.cx .. member:: int gs_rect.cy --------------------- .. type:: struct gs_window A window structure. This structure is used with a native widget. .. member:: void *gs_window.hwnd (Windows only) an HWND widget. .. member:: id gs_window.view (Mac only) A view ID. .. member:: uint32_t gs_window.id void* gs_window.display (Linux only) Window ID and display --------------------- .. type:: struct gs_init_data Swap chain initialization data. .. member:: struct gs_window gs_init_data.window .. member:: uint32_t gs_init_data.cx .. member:: uint32_t gs_init_data.cy .. member:: uint32_t gs_init_data.num_backbuffers .. member:: enum gs_color_format gs_init_data.format .. member:: enum gs_zstencil_format gs_init_data.zsformat .. member:: uint32_t gs_init_data.adapter --------------------- Initialization Functions ------------------------ .. function:: void gs_enum_adapters(bool (*callback)(void *param, const char *name, uint32_t id), void *param) Enumerates adapters (this really only applies on windows). :param callback: Enumeration callback :param param: Private data passed to the callback --------------------- .. function:: int gs_create(graphics_t **graphics, const char *module, uint32_t adapter) Creates a graphics context :param graphics: Pointer to receive the graphics context :param module: Module name :param adapter: Adapter index :return: Can return one of the following values: - GS_SUCCESS - GS_ERROR_FAIL - GS_ERROR_MODULE_NOT_FOUND - GS_ERROR_NOT_SUPPORTED --------------------- .. function:: void gs_destroy(graphics_t *graphics) Destroys a graphics context :param graphics: Graphics context --------------------- .. function:: void gs_enter_context(graphics_t *graphics) Enters and locks the graphics context :param graphics: Graphics context --------------------- .. function:: void gs_leave_context(void) Leaves and unlocks the graphics context :param graphics: Graphics context --------------------- .. function:: graphics_t *gs_get_context(void) :return: The currently locked graphics context for this thread --------------------- Matrix Stack Functions ---------------------- .. function:: void gs_matrix_push(void) Pushes the matrix stack and duplicates the current matrix. --------------------- .. function:: void gs_matrix_pop(void) Pops the current matrix from the matrix stack. --------------------- .. function:: void gs_matrix_identity(void) Sets the current matrix to an identity matrix. --------------------- .. function:: void gs_matrix_transpose(void) Transposes the current matrix. --------------------- .. function:: void gs_matrix_set(const struct matrix4 *matrix) Sets the current matrix. :param matrix: The matrix to set --------------------- .. function:: void gs_matrix_get(struct matrix4 *dst) Gets the current matrix :param dst: Destination matrix --------------------- .. function:: void gs_matrix_mul(const struct matrix4 *matrix) Multiplies the current matrix :param matrix: Matrix to multiply the current stack matrix with --------------------- .. function:: void gs_matrix_rotquat(const struct quat *rot) Multiplies the current matrix with a quaternion :param rot: Quaternion to multiple the current matrix stack with --------------------- .. function:: void gs_matrix_rotaa(const struct axisang *rot) void gs_matrix_rotaa4f(float x, float y, float z, float angle) Multiplies the current matrix with an axis angle :param rot: Axis angle to multiple the current matrix stack with --------------------- .. function:: void gs_matrix_translate(const struct vec3 *pos) void gs_matrix_translate3f(float x, float y, float z) Translates the current matrix :param pos: Vector to translate the current matrix stack with --------------------- .. function:: void gs_matrix_scale(const struct vec3 *scale) void gs_matrix_scale3f(float x, float y, float z) Scales the current matrix :param scale: Scale value to scale the current matrix stack with --------------------- Draw Functions -------------- .. function:: gs_effect_t *gs_get_effect(void) :return: The currently active effect, or *NULL* if none active --------------------- .. function:: void gs_draw_sprite(gs_texture_t *tex, uint32_t flip, uint32_t width, uint32_t height) Draws a 2D sprite. Sets the "image" parameter of the current effect to the texture and renders a quad. If width or height is 0, the width or height of the texture will be used. The flip value specifies whether the texture should be flipped on the U or V axis with GS_FLIP_U and GS_FLIP_V. :param tex: Texture to draw :param flip: Can be 0 or a bitwise-OR combination of one of the following values: - GS_FLIP_U - Flips the texture horizontally - GS_FLIP_V - Flips the texture vertically :param width: Width :param height: Height --------------------- .. function:: void gs_draw_sprite_subregion(gs_texture_t *tex, uint32_t flip, uint32_t x, uint32_t y, uint32_t cx, uint32_t cy) Draws a subregion of a 2D sprite. Sets the "image" parameter of the current effect to the texture and renders a quad. :param tex: Texture to draw :param flip: Can be 0 or a bitwise-OR combination of one of the following values: - GS_FLIP_U - Flips the texture horizontally - GS_FLIP_V - Flips the texture vertically :param x: X value within subregion :param y: Y value within subregion :param cx: CX value of subregion :param cy: CY value of subregion --------------------- .. function:: void gs_reset_viewport(void) Sets the viewport to current swap chain size --------------------- .. function:: void gs_set_2d_mode(void) Sets the projection matrix to a default screen-sized orthographic mode --------------------- .. function:: void gs_set_3d_mode(double fovy, double znear, double zfar) Sets the projection matrix to a default screen-sized perspective mode :param fovy: Field of view (in degrees) :param znear: Near plane :param zfar: Far plane --------------------- .. function:: void gs_viewport_push(void) Pushes/stores the current viewport --------------------- .. function:: void gs_viewport_pop(void) Pops/recalls the last pushed viewport --------------------- .. function:: void gs_perspective(float fovy, float aspect, float znear, float zfar) Sets the projection matrix to a perspective mode :param fovy: Field of view (in degrees) :param aspect: Aspect ratio :param znear: Near plane :param zfar: Far plane --------------------- .. function:: void gs_blend_state_push(void) Pushes/stores the current blend state --------------------- .. function:: void gs_blend_state_pop(void) Pops/restores the last blend state --------------------- .. function:: void gs_reset_blend_state(void) Sets the blend state to the default value: source alpha and invert source alpha. --------------------- Swap Chains ----------- .. function:: gs_swapchain_t *gs_swapchain_create(const struct gs_init_data *data) Creates a swap chain (display view on a native widget) :param data: Swap chain initialization data :return: New swap chain object, or *NULL* if failed --------------------- .. function:: void gs_swapchain_destroy(gs_swapchain_t *swapchain) Destroys a swap chain --------------------- .. function:: void gs_resize(uint32_t cx, uint32_t cy) Resizes the currently active swap chain :param cx: New width :param cy: New height --------------------- .. function:: void gs_get_size(uint32_t *cx, uint32_t *cy) Gets the size of the currently active swap chain :param cx: Pointer to receive width :param cy: Pointer to receive height --------------------- .. function:: uint32_t gs_get_width(void) Gets the width of the currently active swap chain --------------------- .. function:: uint32_t gs_get_height(void) Gets the height of the currently active swap chain --------------------- Resource Loading ---------------- .. function:: void gs_load_vertexbuffer(gs_vertbuffer_t *vertbuffer) Loads a vertex buffer :param vertbuffer: Vertex buffer to load, or NULL to unload --------------------- .. function:: void gs_load_indexbuffer(gs_indexbuffer_t *indexbuffer) Loads a index buffer :param indexbuffer: Index buffer to load, or NULL to unload --------------------- .. function:: void gs_load_texture(gs_texture_t *tex, int unit) Loads a texture (this is usually not called manually) :param tex: Texture to load, or NULL to unload :param unit: Texture unit to load texture for --------------------- .. function:: void gs_load_samplerstate(gs_samplerstate_t *samplerstate, int unit) Loads a sampler state (this is usually not called manually) :param samplerstate: Sampler state to load, or NULL to unload :param unit: Texture unit to load sampler state for --------------------- .. function:: void gs_load_swapchain(gs_swapchain_t *swapchain) Loads a swapchain :param swapchain: Swap chain to load, or NULL to unload --------------------- Draw Functions -------------- .. function:: gs_texture_t *gs_get_render_target(void) :return: The currently active render target --------------------- .. function:: gs_zstencil_t *gs_get_zstencil_target(void) :return: The currently active Z-stencil target --------------------- .. function:: void gs_set_render_target(gs_texture_t *tex, gs_zstencil_t *zstencil) Sets the active render target :param tex: Texture to set as the active render target :param zstencil: Z-stencil to use as the active render target --------------------- .. function:: void gs_set_cube_render_target(gs_texture_t *cubetex, int side, gs_zstencil_t *zstencil) Sets a cubemap side as the active render target :param cubetex: Cubemap :param side: Cubemap side :param zstencil: Z-stencil buffer, or *NULL* if none --------------------- .. function:: void gs_copy_texture(gs_texture_t *dst, gs_texture_t *src) Copies a texture :param dst: Destination texture :param src: Source texture --------------------- .. function:: void gs_stage_texture(gs_stagesurf_t *dst, gs_texture_t *src) Copies a texture to a staging surface and copies it to RAM. Ideally best to give this a frame to process to prevent stalling. :param dst: Staging surface :param src: Texture to stage --------------------- .. function:: void gs_begin_scene(void) void gs_end_scene(void) Begins/ends a scene (this is automatically called by libobs, there's no need to call this manually). --------------------- .. function:: void gs_draw(enum gs_draw_mode draw_mode, uint32_t start_vert, uint32_t num_verts) Draws a primitive or set of primitives. :param draw_mode: The primitive draw mode to use :param start_vert: Starting vertex index :param num_verts: Number of vertices --------------------- .. function:: void gs_clear(uint32_t clear_flags, const struct vec4 *color, float depth, uint8_t stencil) Clears color/depth/stencil buffers. :param clear_flags: Flags to clear with. Can be one of the following values: - GS_CLEAR_COLOR - Clears color buffer - GS_CLEAR_DEPTH - Clears depth buffer - GS_CLEAR_STENCIL - Clears stencil buffer :param color: Color value to clear the color buffer with :param depth: Depth value to clear the depth buffer with :param stencil: Stencil value to clear the stencil buffer with --------------------- .. function:: void gs_present(void) Displays what was rendered on to the current render target --------------------- .. function:: void gs_flush(void) Flushes GPU calls --------------------- .. function:: void gs_set_cull_mode(enum gs_cull_mode mode) Sets the current cull mode. :param mode: Cull mode --------------------- .. function:: enum gs_cull_mode gs_get_cull_mode(void) :return: The current cull mode --------------------- .. function:: void gs_enable_blending(bool enable) Enables/disables blending :param enable: *true* to enable, *false* to disable --------------------- .. function:: void gs_enable_depth_test(bool enable) Enables/disables depth testing :param enable: *true* to enable, *false* to disable --------------------- .. function:: void gs_enable_stencil_test(bool enable) Enables/disables stencil testing :param enable: *true* to enable, *false* to disable --------------------- .. function:: void gs_enable_stencil_write(bool enable) Enables/disables stencil writing :param enable: *true* to enable, *false* to disable --------------------- .. function:: void gs_enable_color(bool red, bool green, bool blue, bool alpha) Enables/disables specific color channels :param red: *true* to enable red channel, *false* to disable :param green: *true* to enable green channel, *false* to disable :param blue: *true* to enable blue channel, *false* to disable :param alpha: *true* to enable alpha channel, *false* to disable --------------------- .. function:: void gs_blend_function(enum gs_blend_type src, enum gs_blend_type dest) Sets the blend function :param src: Blend type for the source :param dest: Blend type for the destination --------------------- .. function:: void gs_blend_function_separate(enum gs_blend_type src_c, enum gs_blend_type dest_c, enum gs_blend_type src_a, enum gs_blend_type dest_a) Sets the blend function for RGB and alpha separately :param src_c: Blend type for the source RGB :param dest_c: Blend type for the destination RGB :param src_a: Blend type for the source alpha :param dest_a: Blend type for the destination alpha --------------------- .. function:: void gs_depth_function(enum gs_depth_test test) Sets the depth function :param test: Sets the depth test type --------------------- .. function:: void gs_stencil_function(enum gs_stencil_side side, enum gs_depth_test test) Sets the stencil function :param side: Stencil side :param test: Depth test --------------------- .. function:: void gs_stencil_op(enum gs_stencil_side side, enum gs_stencil_op_type fail, enum gs_stencil_op_type zfail, enum gs_stencil_op_type zpass) Sets the stencil operation :param side: Stencil side :param fail: Operation to perform on stencil test failure :param zfail: Operation to perform on depth test failure :param zpass: Operation to perform on depth test success --------------------- .. function:: void gs_set_viewport(int x, int y, int width, int height) Sets the current viewport :param x: X position relative to upper left :param y: Y position relative to upper left :param width: Width of the viewport :param height: Height of the viewport --------------------- .. function:: void gs_get_viewport(struct gs_rect *rect) Gets the current viewport :param rect: Pointer to recieve viewport rectangle --------------------- .. function:: void gs_set_scissor_rect(const struct gs_rect *rect) Sets or clears the current scissor rectangle :rect: Scissor rectangle, or *NULL* to clear --------------------- .. function:: void gs_ortho(float left, float right, float top, float bottom, float znear, float zfar) Sets the projection matrix to an orthographic matrix --------------------- .. function:: void gs_frustum(float left, float right, float top, float bottom, float znear, float zfar) Sets the projection matrix to a frustum matrix --------------------- .. function:: void gs_projection_push(void) Pushes/stores the current projection matrix --------------------- .. function:: void gs_projection_pop(void) Pops/restores the last projection matrix pushed --------------------- Texture Functions ----------------- .. function:: gs_texture_t *gs_texture_create(uint32_t width, uint32_t height, enum gs_color_format color_format, uint32_t levels, const uint8_t **data, uint32_t flags) Creates a texture. :param width: Width :param height: Height :param color_format: Color format :param levels: Number of total texture levels. Set to 1 if no mip-mapping :param data: Pointer to array of texture data pointers :param flags: Can be 0 or a bitwise-OR combination of one or more of the following value: - GS_BUILD_MIPMAPS - Automatically builds mipmaps (Note: not fully tested) - GS_DYNAMIC - Dynamic - GS_RENDER_TARGET - Render target :return: A new texture object --------------------- .. function:: gs_texture_t *gs_texture_create_from_file(const char *file) Creates a texture from a file. Note that this isn't recommended for animated gifs -- instead use the :ref:`image_file_helper`. :param file: Image file to open --------------------- .. function:: void gs_texture_destroy(gs_texture_t *tex) Destroys a texture :param tex: Texture object --------------------- .. function:: uint32_t gs_texture_get_width(const gs_texture_t *tex) Gets the texture's width :param tex: Texture object :return: The texture's width --------------------- .. function:: uint32_t gs_texture_get_height(const gs_texture_t *tex) Gets the texture's height :param tex: Texture object :return: The texture's height --------------------- .. function:: enum gs_color_format gs_texture_get_color_format(const gs_texture_t *tex) Gets the texture's color format :param tex: Texture object :return: The texture's color format --------------------- .. function:: bool gs_texture_map(gs_texture_t *tex, uint8_t **ptr, uint32_t *linesize) Maps a texture. :param tex: Texture object :param ptr: Pointer to receive the pointer to the texture data to write to :param linesize: Pointer to receive the line size (pitch) of the texture --------------------- .. function:: void gs_texture_unmap(gs_texture_t *tex) Unmaps a texture. :param tex: Texture object --------------------- .. function:: void gs_texture_set_image(gs_texture_t *tex, const uint8_t *data, uint32_t linesize, bool invert) Sets the image of a dynamic texture :param tex: Texture object :param data: Data to set as the image :param linesize: Line size (pitch) of the data :param invert: *true* to invert vertically, *false* otherwise --------------------- .. function:: gs_texture_t *gs_texture_create_from_iosurface(void *iosurf) **Mac only:** Creates a texture from an IOSurface. :param iosurf: IOSurface object --------------------- .. function:: bool gs_texture_rebind_iosurface(gs_texture_t *texture, void *iosurf) **Mac only:** Rebinds a texture to another IOSurface :param texture: Texture object :param iosuf: IOSurface object --------------------- .. function:: gs_texture_t *gs_texture_create_gdi(uint32_t width, uint32_t height) **Windows only:** Creates a GDI-interop texture :param width: Width :param height: Height --------------------- .. function:: void *gs_texture_get_dc(gs_texture_t *gdi_tex) **Windows only:** Gets the HDC of a GDI-interop texture. Call :c:func:`gs_texture_release_dc()` to release the HDC. :param gdi_tex: GDI-interop texture object :return: HDC object --------------------- .. function:: void gs_texture_release_dc(gs_texture_t *gdi_tex) **Windows only:** Releases the HDC of the GDI-interop texture. :param gdi_tex: GDI-interop texture object --------------------- .. function:: gs_texture_t *gs_texture_open_shared(uint32_t handle) **Windows only:** Creates a texture from a shared texture handle. :param handle: Shared texture handle :return: A texture object --------------------- .. function:: bool gs_gdi_texture_available(void) **Windows only:** Returns whether GDI-interop textures are available. :return: *true* if available, *false* otherwise --------------------- .. function:: bool gs_shared_texture_available(void) **Windows only:** Returns whether shared textures are available. :return: *true* if available, *false* otherwise --------------------- Cube Texture Functions ---------------------- .. function:: gs_texture_t *gs_cubetexture_create(uint32_t size, enum gs_color_format color_format, uint32_t levels, const uint8_t **data, uint32_t flags) Creates a cubemap texture. :param size: Width/height/depth value :param color_format: Color format :param levels: Number of texture levels :param data: Pointer to array of texture data pointers :param flags: Can be 0 or a bitwise-OR combination of one or more of the following value: - GS_BUILD_MIPMAPS - Automatically builds mipmaps (Note: not fully tested) - GS_DYNAMIC - Dynamic - GS_RENDER_TARGET - Render target :return: A new cube texture object --------------------- .. function:: void gs_cubetexture_destroy(gs_texture_t *cubetex) Destroys a cube texture. :param cubetex: Cube texture object --------------------- .. function:: uint32_t gs_cubetexture_get_size(const gs_texture_t *cubetex) Get the width/height/depth value of a cube texture. :param cubetex: Cube texture object :return: The width/height/depth value of the cube texture --------------------- .. function:: enum gs_color_format gs_cubetexture_get_color_format(const gs_texture_t *cubetex) Gets the color format of a cube texture. :param cubetex: Cube texture object :return: The color format of the cube texture --------------------- .. function:: void gs_cubetexture_set_image(gs_texture_t *cubetex, uint32_t side, const void *data, uint32_t linesize, bool invert) Sets an image of a cube texture side. :param cubetex: Cube texture object :param side: Side :param data: Texture data to set :param linesize: Line size (pitch) of the texture data :param invert: *true* to invert texture data, *false* otherwise --------------------- Staging Surface Functions ------------------------- Staging surfaces are used to efficiently copy textures from VRAM to RAM. .. function:: gs_stagesurf_t *gs_stagesurface_create(uint32_t width, uint32_t height, enum gs_color_format color_format) Creates a staging surface. :param width: Width :param height: Height :param color_format: Color format :return: The staging surface object --------------------- .. function:: void gs_stagesurface_destroy(gs_stagesurf_t *stagesurf) Destroys a staging surface. :param stagesurf: Staging surface object --------------------- .. function:: uint32_t gs_stagesurface_get_width(const gs_stagesurf_t *stagesurf) uint32_t gs_stagesurface_get_height(const gs_stagesurf_t *stagesurf) Gets the width/height of a staging surface object. :param stagesurf: Staging surface object :return: Width/height of the staging surface --------------------- .. function:: enum gs_color_format gs_stagesurface_get_color_format(const gs_stagesurf_t *stagesurf) Gets the color format of a staging surface object. :param stagesurf: Staging surface object :return: Color format of the staging surface --------------------- .. function:: bool gs_stagesurface_map(gs_stagesurf_t *stagesurf, uint8_t **data, uint32_t *linesize) Maps the staging surface texture (for reading). Call :c:func:`gs_stagesurface_unmap()` to unmap when complete. :param stagesurf: Staging surface object :param data: Pointer to receive texture data pointer :param linesize: Pointer to receive line size (pitch) of the texture data :return: *true* if map successful, *false* otherwise --------------------- .. function:: void gs_stagesurface_unmap(gs_stagesurf_t *stagesurf) Unmaps a staging surface. :param stagesurf: Staging surface object --------------------- Z-Stencil Functions ------------------- .. function:: gs_zstencil_t *gs_zstencil_create(uint32_t width, uint32_t height, enum gs_zstencil_format format) Creates a Z-stencil surface object. :param width: Width :param height: Height :param format: Format :return: New Z-stencil surface object, or *NULL* if failed --------------------- .. function:: void gs_zstencil_destroy(gs_zstencil_t *zstencil) Destroys a Z-stencil buffer. :param zstencil: Z-stencil surface object --------------------- Sampler State Functions ----------------------- .. function:: gs_samplerstate_t *gs_samplerstate_create(const struct gs_sampler_info *info) Creates a sampler state object. :param info: Sampler state information :return: New sampler state object --------------------- .. function:: void gs_samplerstate_destroy(gs_samplerstate_t *samplerstate) Destroys a sampler state object. :param samplerstate: Sampler state object --------------------- Vertex Buffer Functions ----------------------- .. function:: gs_vertbuffer_t *gs_vertexbuffer_create(struct gs_vb_data *data, uint32_t flags) Creates a vertex buffer. :param data: Vertex buffer data to create vertex buffer with. The structure should be created with gs_vbdata_create(), and then buffers in this structure should be allocated with :c:func:`bmalloc()`, :c:func:`bzalloc()`, or :c:func:`brealloc()`. The ownership of the gs_vb_data pointer is then passed to the function, and they should not be destroyed by the caller once passed :param flags: Creation flags. Can be 0 or a bitwise-OR combination of any of the following values: - GS_DYNAMIC - Can be dynamically updated in real time. - GS_DUP_BUFFER - Do not pass buffer ownership of the structure or the buffer pointers within the structure. :return: A new vertex buffer object, or *NULL* if failed --------------------- .. function:: void gs_vertexbuffer_destroy(gs_vertbuffer_t *vertbuffer) Destroys a vertex buffer object. :param vertbuffer: Vertex buffer object --------------------- .. function:: void gs_vertexbuffer_flush(gs_vertbuffer_t *vertbuffer) Flushes a vertex buffer to its interval vertex data object. To modify its internal vertex data, call :c:func:`gs_vertexbuffer_get_data()`. Can only be used with dynamic vertex buffer objects. :param vertbuffer: Vertex buffer object --------------------- .. function:: void gs_vertexbuffer_flush_direct(gs_vertbuffer_t *vertbuffer, const struct gs_vb_data *data) Directly flushes a vertex buffer to the specified vertex buffer data. . Can only be used with dynamic vertex buffer objects. :param vertbuffer: Vertex buffer object :param data: Vertex buffer data to flush. Components that don't need to be flushed can be left *NULL* --------------------- .. function:: struct gs_vb_data *gs_vertexbuffer_get_data(const gs_vertbuffer_t *vertbuffer) Gets the vertex buffer data associated with a vertex buffer object. This data can be changed and vertex buffer can be updated with :c:func:`gs_vertexbuffer_flush()`. Can only be used with dynamic vertex buffer objects. :param vertbuffer: Vertex buffer object :return: Vertex buffer data structure --------------------- Index Buffer Functions ---------------------- .. function:: gs_indexbuffer_t *gs_indexbuffer_create(enum gs_index_type type, void *indices, size_t num, uint32_t flags) Creates an index buffer. :param type: Index buffer type :param indices: Index buffer data. This buffer must be allocated with :c:func:`bmalloc()`, :c:func:`bzalloc()`, or :c:func:`bralloc()`, and ownership of this buffer is passed to the index buffer object. :param num: Number of indices in the buffer :param flags: Creation flags. Can be 0 or a bitwise-OR combination of any of the following values: - GS_DYNAMIC - Can be dynamically updated in real time. - GS_DUP_BUFFER - Do not pass buffer ownership :return: A new index buffer object, or *NULL* if failed --------------------- .. function:: void gs_indexbuffer_destroy(gs_indexbuffer_t *indexbuffer) Destroys an index buffer object. :param indexbuffer: Index buffer object --------------------- .. function:: void gs_indexbuffer_flush(gs_indexbuffer_t *indexbuffer) Flushes a index buffer to its interval index data object. To modify its internal index data, call :c:func:`gs_indexbuffer_get_data()`. Can only be used with dynamic index buffer objects. :param indexbuffer: Index buffer object --------------------- .. function:: void gs_indexbuffer_flush_direct(gs_indexbuffer_t *indexbuffer, const void *data) Flushes a index buffer to the specified index buffer data. Can only be used with dynamic index buffer objects. :param indexbuffer: Index buffer object :param data: Index buffer data to flush --------------------- .. function:: void *gs_indexbuffer_get_data(const gs_indexbuffer_t *indexbuffer) Gets the index buffer data associated with a index buffer object. This data can be changed and index buffer can be updated with :c:func:`gs_indexbuffer_flush()`. Can only be used with dynamic index buffer objects. :param vertbuffer: Index buffer object :return: Index buffer data pointer --------------------- .. function:: size_t gs_indexbuffer_get_num_indices(const gs_indexbuffer_t *indexbuffer) Gets the number of indices associated with this index buffer. :param indexbuffer: Index buffer object :return: Number of indices the vertex buffer object has --------------------- .. function:: enum gs_index_type gs_indexbuffer_get_type(const gs_indexbuffer_t *indexbuffer) Gets the type of index buffer. :param indexbuffer: Index buffer object :return: Index buffer type --------------------- Display Duplicator (Windows Only) --------------------------------- .. function:: gs_duplicator_t *gs_duplicator_create(int monitor_idx) --------------------- .. function:: void gs_duplicator_destroy(gs_duplicator_t *duplicator) --------------------- .. function:: bool gs_duplicator_update_frame(gs_duplicator_t *duplicator) --------------------- .. function:: gs_texture_t *gs_duplicator_get_texture(gs_duplicator_t *duplicator) --------------------- .. function:: bool gs_get_duplicator_monitor_info(int monitor_idx, struct gs_monitor_info *monitor_info) --------------------- Render Helper Functions ----------------------- .. function:: void gs_render_start(bool b_new) --------------------- .. function:: void gs_render_stop(enum gs_draw_mode mode) --------------------- .. function:: gs_vertbuffer_t *gs_render_save(void) --------------------- .. function:: void gs_vertex2f(float x, float y) --------------------- .. function:: void gs_vertex3f(float x, float y, float z) --------------------- .. function:: void gs_normal3f(float x, float y, float z) --------------------- .. function:: void gs_color(uint32_t color) --------------------- .. function:: void gs_texcoord(float x, float y, int unit) --------------------- .. function:: void gs_vertex2v(const struct vec2 *v) --------------------- .. function:: void gs_vertex3v(const struct vec3 *v) --------------------- .. function:: void gs_normal3v(const struct vec3 *v) --------------------- .. function:: void gs_color4v(const struct vec4 *v) --------------------- .. function:: void gs_texcoord2v(const struct vec2 *v, int unit) --------------------- Graphics Types -------------- .. type:: typedef struct gs_duplicator gs_duplicator_t .. type:: typedef struct gs_texture gs_texture_t .. type:: typedef struct gs_stage_surface gs_stagesurf_t .. type:: typedef struct gs_zstencil_buffer gs_zstencil_t .. type:: typedef struct gs_vertex_buffer gs_vertbuffer_t .. type:: typedef struct gs_index_buffer gs_indexbuffer_t .. type:: typedef struct gs_sampler_state gs_samplerstate_t .. type:: typedef struct gs_swap_chain gs_swapchain_t .. type:: typedef struct gs_texture_render gs_texrender_t .. type:: typedef struct gs_shader gs_shader_t .. type:: typedef struct gs_shader_param gs_sparam_t .. type:: typedef struct gs_device gs_device_t .. type:: typedef struct graphics_subsystem graphics_t