1462 lines
38 KiB
ReStructuredText
1462 lines
38 KiB
ReStructuredText
Core Graphics API
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=================
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.. code:: cpp
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#include <graphics/graphics.h>
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Graphics Enumerations
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---------------------
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.. type:: enum gs_draw_mode
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Draw mode. Can be one of the following values:
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- GS_POINTS - Draws points
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- GS_LINES - Draws individual lines
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- GS_LINESTRIP - Draws a line strip
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- GS_TRIS - Draws individual triangles
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- GS_TRISTRIP - Draws a triangle strip
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.. type:: enum gs_color_format
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Color format. Can be one of the following values:
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- GS_UNKNOWN - Unknown format
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- GS_A8 - 8 bit alpha channel only
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- GS_R8 - 8 bit red channel only
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- GS_RGBA - RGBA, 8 bits per channel
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- GS_BGRX - BGRX, 8 bits per channel
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- GS_BGRA - BGRA, 8 bits per channel
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- GS_R10G10B10A2 - RGBA, 10 bits per channel except alpha, which is 2
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bits
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- GS_RGBA16 - RGBA, 16 bits per channel
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- GS_R16 - 16 bit red channel only
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- GS_RGBA16F - RGBA, 16 bit floating point per channel
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- GS_RGBA32F - RGBA, 32 bit floating point per channel
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- GS_RG16F - 16 bit floating point red and green channels only
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- GS_RG32F - 32 bit floating point red and green channels only
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- GS_R16F - 16 bit floating point red channel only
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- GS_R32F - 32 bit floating point red channel only
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- GS_DXT1 - Compressed DXT1
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- GS_DXT3 - Compressed DXT3
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- GS_DXT5 - Compressed DXT5
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.. type:: enum gs_zstencil_format
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Z-Stencil buffer format. Can be one of the following values:
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- GS_ZS_NONE - No Z-stencil buffer
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- GS_Z16 - 16 bit Z buffer
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- GS_Z24_S8 - 24 bit Z buffer, 8 bit stencil
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- GS_Z32F - 32 bit floating point Z buffer
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- GS_Z32F_S8X24 - 32 bit floating point Z buffer, 8 bit stencil
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.. type:: enum gs_index_type
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Index buffer type. Can be one of the following values:
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- GS_UNSIGNED_SHORT - 16 bit index
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- GS_UNSIGNED_LONG - 32 bit index
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.. type:: enum gs_cull_mode
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Cull mode. Can be one of the following values:
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- GS_BACK - Cull back faces
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- GS_FRONT - Cull front faces
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- GS_NEITHER - Cull neither
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.. type:: enum gs_blend_type
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Blend type. Can be one of the following values:
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- GS_BLEND_ZERO
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- GS_BLEND_ONE
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- GS_BLEND_SRCCOLOR
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- GS_BLEND_INVSRCCOLOR
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- GS_BLEND_SRCALPHA
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- GS_BLEND_INVSRCALPHA
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- GS_BLEND_DSTCOLOR
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- GS_BLEND_INVDSTCOLOR
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- GS_BLEND_DSTALPHA
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- GS_BLEND_INVDSTALPHA
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- GS_BLEND_SRCALPHASAT
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.. type:: enum gs_depth_test
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Depth test type. Can be one of the following values:
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- GS_NEVER
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- GS_LESS
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- GS_LEQUAL
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- GS_EQUAL
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- GS_GEQUAL
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- GS_GREATER
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- GS_NOTEQUAL
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- GS_ALWAYS
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.. type:: enum gs_stencil_side
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Stencil side. Can be one of the following values:
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- GS_STENCIL_FRONT=1
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- GS_STENCIL_BACK
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- GS_STENCIL_BOTH
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.. type:: enum gs_stencil_op_type
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Stencil operation type. Can be one of the following values:
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- GS_KEEP
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- GS_ZERO
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- GS_REPLACE
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- GS_INCR
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- GS_DECR
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- GS_INVERT
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.. type:: enum gs_cube_sides
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Cubemap side. Can be one of the following values:
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- GS_POSITIVE_X
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- GS_NEGATIVE_X
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- GS_POSITIVE_Y
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- GS_NEGATIVE_Y
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- GS_POSITIVE_Z
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- GS_NEGATIVE_Z
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.. type:: enum gs_sample_filter
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Sample filter type. Can be one of the following values:
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- GS_FILTER_POINT
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- GS_FILTER_LINEAR
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- GS_FILTER_ANISOTROPIC
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- GS_FILTER_MIN_MAG_POINT_MIP_LINEAR
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- GS_FILTER_MIN_POINT_MAG_LINEAR_MIP_POINT
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- GS_FILTER_MIN_POINT_MAG_MIP_LINEAR
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- GS_FILTER_MIN_LINEAR_MAG_MIP_POINT
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- GS_FILTER_MIN_LINEAR_MAG_POINT_MIP_LINEAR
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- GS_FILTER_MIN_MAG_LINEAR_MIP_POINT
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.. type:: enum gs_address_mode
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Address mode. Can be one of the following values:
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- GS_ADDRESS_CLAMP
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- GS_ADDRESS_WRAP
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- GS_ADDRESS_MIRROR
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- GS_ADDRESS_BORDER
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- GS_ADDRESS_MIRRORONCE
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.. type:: enum gs_texture_type
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Texture type. Can be one of the following values:
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- GS_TEXTURE_2D
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- GS_TEXTURE_3D
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- GS_TEXTURE_CUBE
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Graphics Structures
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-------------------
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.. type:: struct gs_monitor_info
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.. member:: int gs_monitor_info.rotation_degrees
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.. member:: long gs_monitor_info.x
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.. member:: long gs_monitor_info.y
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.. member:: long gs_monitor_info.cx
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.. member:: long gs_monitor_info.cy
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---------------------
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.. type:: struct gs_tvertarray
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.. member:: size_t gs_tvertarray.width
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.. member:: void *gs_tvertarray.array
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---------------------
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.. type:: struct gs_vb_data
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.. member:: size_t gs_vb_data.num
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.. member:: struct vec3 *gs_vb_data.points
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.. member:: struct vec3 *gs_vb_data.normals
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.. member:: struct vec3 *gs_vb_data.tangents
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.. member:: uint32_t *gs_vb_data.colors
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.. member:: size_t gs_vb_data.num_tex
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.. member:: struct gs_tvertarray *gs_vb_data.tvarray
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---------------------
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.. type:: struct gs_sampler_info
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.. member:: enum gs_sample_filter gs_sampler_info.filter
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.. member:: enum gs_address_mode gs_sampler_info.address_u
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.. member:: enum gs_address_mode gs_sampler_info.address_v
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.. member:: enum gs_address_mode gs_sampler_info.address_w
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.. member:: int gs_sampler_info.max_anisotropy
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.. member:: uint32_t gs_sampler_info.border_color
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---------------------
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.. type:: struct gs_display_mode
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.. member:: uint32_t gs_display_mode.width
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.. member:: uint32_t gs_display_mode.height
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.. member:: uint32_t gs_display_mode.bits
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.. member:: uint32_t gs_display_mode.freq
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---------------------
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.. type:: struct gs_rect
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.. member:: int gs_rect.x
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.. member:: int gs_rect.y
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.. member:: int gs_rect.cx
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.. member:: int gs_rect.cy
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---------------------
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.. type:: struct gs_window
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A window structure. This structure is used with a native widget.
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.. member:: void *gs_window.hwnd
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(Windows only) an HWND widget.
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.. member:: id gs_window.view
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(Mac only) A view ID.
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.. member:: uint32_t gs_window.id
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void* gs_window.display
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(Linux only) Window ID and display
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---------------------
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.. type:: struct gs_init_data
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Swap chain initialization data.
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.. member:: struct gs_window gs_init_data.window
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.. member:: uint32_t gs_init_data.cx
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.. member:: uint32_t gs_init_data.cy
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.. member:: uint32_t gs_init_data.num_backbuffers
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.. member:: enum gs_color_format gs_init_data.format
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.. member:: enum gs_zstencil_format gs_init_data.zsformat
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.. member:: uint32_t gs_init_data.adapter
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---------------------
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Initialization Functions
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------------------------
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.. function:: void gs_enum_adapters(bool (*callback)(void *param, const char *name, uint32_t id), void *param)
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Enumerates adapters (this really only applies on windows).
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:param callback: Enumeration callback
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:param param: Private data passed to the callback
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---------------------
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.. function:: int gs_create(graphics_t **graphics, const char *module, uint32_t adapter)
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Creates a graphics context
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:param graphics: Pointer to receive the graphics context
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:param module: Module name
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:param adapter: Adapter index
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:return: Can return one of the following values:
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- GS_SUCCESS
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- GS_ERROR_FAIL
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- GS_ERROR_MODULE_NOT_FOUND
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- GS_ERROR_NOT_SUPPORTED
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---------------------
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.. function:: void gs_destroy(graphics_t *graphics)
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Destroys a graphics context
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:param graphics: Graphics context
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---------------------
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.. function:: void gs_enter_context(graphics_t *graphics)
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Enters and locks the graphics context
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:param graphics: Graphics context
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---------------------
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.. function:: void gs_leave_context(void)
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Leaves and unlocks the graphics context
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:param graphics: Graphics context
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---------------------
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.. function:: graphics_t *gs_get_context(void)
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:return: The currently locked graphics context for this thread
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---------------------
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Matrix Stack Functions
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----------------------
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.. function:: void gs_matrix_push(void)
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Pushes the matrix stack and duplicates the current matrix.
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---------------------
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.. function:: void gs_matrix_pop(void)
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Pops the current matrix from the matrix stack.
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---------------------
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.. function:: void gs_matrix_identity(void)
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Sets the current matrix to an identity matrix.
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---------------------
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.. function:: void gs_matrix_transpose(void)
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Transposes the current matrix.
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---------------------
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.. function:: void gs_matrix_set(const struct matrix4 *matrix)
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Sets the current matrix.
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:param matrix: The matrix to set
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---------------------
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.. function:: void gs_matrix_get(struct matrix4 *dst)
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Gets the current matrix
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:param dst: Destination matrix
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---------------------
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.. function:: void gs_matrix_mul(const struct matrix4 *matrix)
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Multiplies the current matrix
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:param matrix: Matrix to multiply the current stack matrix with
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---------------------
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.. function:: void gs_matrix_rotquat(const struct quat *rot)
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Multiplies the current matrix with a quaternion
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:param rot: Quaternion to multiple the current matrix stack with
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---------------------
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.. function:: void gs_matrix_rotaa(const struct axisang *rot)
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void gs_matrix_rotaa4f(float x, float y, float z, float angle)
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Multiplies the current matrix with an axis angle
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:param rot: Axis angle to multiple the current matrix stack with
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---------------------
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.. function:: void gs_matrix_translate(const struct vec3 *pos)
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void gs_matrix_translate3f(float x, float y, float z)
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Translates the current matrix
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:param pos: Vector to translate the current matrix stack with
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---------------------
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.. function:: void gs_matrix_scale(const struct vec3 *scale)
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void gs_matrix_scale3f(float x, float y, float z)
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Scales the current matrix
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:param scale: Scale value to scale the current matrix stack with
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---------------------
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Draw Functions
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--------------
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.. function:: gs_effect_t *gs_get_effect(void)
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:return: The currently active effect, or *NULL* if none active
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---------------------
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.. function:: void gs_draw_sprite(gs_texture_t *tex, uint32_t flip, uint32_t width, uint32_t height)
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Draws a 2D sprite. Sets the "image" parameter of the current effect
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to the texture and renders a quad.
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If width or height is 0, the width or height of the texture will be
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used. The flip value specifies whether the texture should be flipped
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on the U or V axis with GS_FLIP_U and GS_FLIP_V.
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:param tex: Texture to draw
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:param flip: Can be 0 or a bitwise-OR combination of one of the
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following values:
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- GS_FLIP_U - Flips the texture horizontally
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- GS_FLIP_V - Flips the texture vertically
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:param width: Width
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:param height: Height
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---------------------
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.. 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)
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Draws a subregion of a 2D sprite. Sets the "image" parameter of the
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current effect to the texture and renders a quad.
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:param tex: Texture to draw
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:param flip: Can be 0 or a bitwise-OR combination of one of the
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following values:
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- GS_FLIP_U - Flips the texture horizontally
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- GS_FLIP_V - Flips the texture vertically
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:param x: X value within subregion
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:param y: Y value within subregion
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:param cx: CX value of subregion
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:param cy: CY value of subregion
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---------------------
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.. function:: void gs_reset_viewport(void)
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Sets the viewport to current swap chain size
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---------------------
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.. function:: void gs_set_2d_mode(void)
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Sets the projection matrix to a default screen-sized orthographic
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mode
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---------------------
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.. function:: void gs_set_3d_mode(double fovy, double znear, double zfar)
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Sets the projection matrix to a default screen-sized perspective
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mode
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:param fovy: Field of view (in degrees)
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:param znear: Near plane
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:param zfar: Far plane
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---------------------
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.. function:: void gs_viewport_push(void)
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Pushes/stores the current viewport
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---------------------
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.. function:: void gs_viewport_pop(void)
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Pops/recalls the last pushed viewport
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---------------------
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.. function:: void gs_perspective(float fovy, float aspect, float znear, float zfar)
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Sets the projection matrix to a perspective mode
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:param fovy: Field of view (in degrees)
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:param aspect: Aspect ratio
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:param znear: Near plane
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:param zfar: Far plane
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---------------------
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.. function:: void gs_blend_state_push(void)
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Pushes/stores the current blend state
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---------------------
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.. function:: void gs_blend_state_pop(void)
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Pops/restores the last blend state
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---------------------
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.. function:: void gs_reset_blend_state(void)
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Sets the blend state to the default value: source alpha and invert
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source alpha.
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---------------------
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Swap Chains
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-----------
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.. function:: gs_swapchain_t *gs_swapchain_create(const struct gs_init_data *data)
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Creates a swap chain (display view on a native widget)
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:param data: Swap chain initialization data
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:return: New swap chain object, or *NULL* if failed
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---------------------
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.. function:: void gs_swapchain_destroy(gs_swapchain_t *swapchain)
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Destroys a swap chain
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---------------------
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.. function:: void gs_resize(uint32_t cx, uint32_t cy)
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Resizes the currently active swap chain
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:param cx: New width
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:param cy: New height
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---------------------
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.. function:: void gs_get_size(uint32_t *cx, uint32_t *cy)
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Gets the size of the currently active swap chain
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:param cx: Pointer to receive width
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:param cy: Pointer to receive height
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---------------------
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.. function:: uint32_t gs_get_width(void)
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Gets the width of the currently active swap chain
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---------------------
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.. function:: uint32_t gs_get_height(void)
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Gets the height of the currently active swap chain
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---------------------
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Resource Loading
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----------------
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.. function:: void gs_load_vertexbuffer(gs_vertbuffer_t *vertbuffer)
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Loads a vertex buffer
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:param vertbuffer: Vertex buffer to load, or NULL to unload
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---------------------
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.. function:: void gs_load_indexbuffer(gs_indexbuffer_t *indexbuffer)
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Loads a index buffer
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:param indexbuffer: Index buffer to load, or NULL to unload
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---------------------
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.. function:: void gs_load_texture(gs_texture_t *tex, int unit)
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Loads a texture (this is usually not called manually)
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:param tex: Texture to load, or NULL to unload
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:param unit: Texture unit to load texture for
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---------------------
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.. function:: void gs_load_samplerstate(gs_samplerstate_t *samplerstate, int unit)
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Loads a sampler state (this is usually not called manually)
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:param samplerstate: Sampler state to load, or NULL to unload
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:param unit: Texture unit to load sampler state for
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---------------------
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.. function:: void gs_load_swapchain(gs_swapchain_t *swapchain)
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|
|
|
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
|