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Tweak calculations....
Commit Description:
Tweak calculations. Prevent a negative number of visitors and separate visitors from donors.
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FNA/lib/FNA3D/include/FNA3D.h
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/* FNA3D - 3D Graphics Library for FNA
*
* Copyright (c) 2020-2022 Ethan Lee
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in a
* product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
* Ethan "flibitijibibo" Lee <flibitijibibo@flibitijibibo.com>
*
*/
#ifndef FNA3D_H
#define FNA3D_H
#ifdef _WIN32
#define FNA3DAPI __declspec(dllexport)
#define FNA3DCALL __cdecl
#else
#define FNA3DAPI
#define FNA3DCALL
#endif
/* -Wpedantic nameless union/struct silencing */
#ifndef FNA3DNAMELESS
#ifdef __GNUC__
#define FNA3DNAMELESS __extension__
#else
#define FNA3DNAMELESS
#endif /* __GNUC__ */
#endif /* FNA3DNAMELESS */
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Type Declarations */
typedef struct FNA3D_Device FNA3D_Device;
typedef struct FNA3D_Texture FNA3D_Texture;
typedef struct FNA3D_Buffer FNA3D_Buffer;
typedef struct FNA3D_Renderbuffer FNA3D_Renderbuffer;
typedef struct FNA3D_Effect FNA3D_Effect;
typedef struct FNA3D_Query FNA3D_Query;
/* Enumerations, should match XNA 4.0 */
typedef enum FNA3D_PresentInterval
{
/* For the default presentation interval, we try to use an OS-provided
* feature (if available) to sync when meeting the target framerate
* while tearing if the program misses vblank.
*/
FNA3D_PRESENTINTERVAL_DEFAULT,
FNA3D_PRESENTINTERVAL_ONE,
FNA3D_PRESENTINTERVAL_TWO,
FNA3D_PRESENTINTERVAL_IMMEDIATE
} FNA3D_PresentInterval;
typedef enum FNA3D_DisplayOrientation
{
FNA3D_DISPLAYORIENTATION_DEFAULT,
FNA3D_DISPLAYORIENTATION_LANDSCAPELEFT,
FNA3D_DISPLAYORIENTATION_LANDSCAPERIGHT,
FNA3D_DISPLAYORIENTATION_PORTRAIT
} FNA3D_DisplayOrientation;
typedef enum FNA3D_RenderTargetUsage
{
FNA3D_RENDERTARGETUSAGE_DISCARDCONTENTS,
FNA3D_RENDERTARGETUSAGE_PRESERVECONTENTS,
FNA3D_RENDERTARGETUSAGE_PLATFORMCONTENTS
} FNA3D_RenderTargetUsage;
typedef enum FNA3D_ClearOptions
{
FNA3D_CLEAROPTIONS_TARGET = 1,
FNA3D_CLEAROPTIONS_DEPTHBUFFER = 2,
FNA3D_CLEAROPTIONS_STENCIL = 4
} FNA3D_ClearOptions;
typedef enum FNA3D_PrimitiveType
{
FNA3D_PRIMITIVETYPE_TRIANGLELIST,
FNA3D_PRIMITIVETYPE_TRIANGLESTRIP,
FNA3D_PRIMITIVETYPE_LINELIST,
FNA3D_PRIMITIVETYPE_LINESTRIP,
FNA3D_PRIMITIVETYPE_POINTLIST_EXT
} FNA3D_PrimitiveType;
typedef enum FNA3D_IndexElementSize
{
FNA3D_INDEXELEMENTSIZE_16BIT,
FNA3D_INDEXELEMENTSIZE_32BIT
} FNA3D_IndexElementSize;
typedef enum FNA3D_SurfaceFormat
{
FNA3D_SURFACEFORMAT_COLOR,
FNA3D_SURFACEFORMAT_BGR565,
FNA3D_SURFACEFORMAT_BGRA5551,
FNA3D_SURFACEFORMAT_BGRA4444,
FNA3D_SURFACEFORMAT_DXT1,
FNA3D_SURFACEFORMAT_DXT3,
FNA3D_SURFACEFORMAT_DXT5,
FNA3D_SURFACEFORMAT_NORMALIZEDBYTE2,
FNA3D_SURFACEFORMAT_NORMALIZEDBYTE4,
FNA3D_SURFACEFORMAT_RGBA1010102,
FNA3D_SURFACEFORMAT_RG32,
FNA3D_SURFACEFORMAT_RGBA64,
FNA3D_SURFACEFORMAT_ALPHA8,
FNA3D_SURFACEFORMAT_SINGLE,
FNA3D_SURFACEFORMAT_VECTOR2,
FNA3D_SURFACEFORMAT_VECTOR4,
FNA3D_SURFACEFORMAT_HALFSINGLE,
FNA3D_SURFACEFORMAT_HALFVECTOR2,
FNA3D_SURFACEFORMAT_HALFVECTOR4,
FNA3D_SURFACEFORMAT_HDRBLENDABLE,
FNA3D_SURFACEFORMAT_COLORBGRA_EXT,
FNA3D_SURFACEFORMAT_COLORSRGB_EXT,
FNA3D_SURFACEFORMAT_DXT5SRGB_EXT,
FNA3D_SURFACEFORMAT_BC7_EXT,
FNA3D_SURFACEFORMAT_BC7SRGB_EXT,
} FNA3D_SurfaceFormat;
typedef enum FNA3D_DepthFormat
{
FNA3D_DEPTHFORMAT_NONE,
FNA3D_DEPTHFORMAT_D16,
FNA3D_DEPTHFORMAT_D24,
FNA3D_DEPTHFORMAT_D24S8
} FNA3D_DepthFormat;
typedef enum FNA3D_CubeMapFace
{
FNA3D_CUBEMAPFACE_POSITIVEX,
FNA3D_CUBEMAPFACE_NEGATIVEX,
FNA3D_CUBEMAPFACE_POSITIVEY,
FNA3D_CUBEMAPFACE_NEGATIVEY,
FNA3D_CUBEMAPFACE_POSITIVEZ,
FNA3D_CUBEMAPFACE_NEGATIVEZ
} FNA3D_CubeMapFace;
typedef enum FNA3D_BufferUsage
{
FNA3D_BUFFERUSAGE_NONE,
FNA3D_BUFFERUSAGE_WRITEONLY
} FNA3D_BufferUsage;
typedef enum FNA3D_SetDataOptions
{
FNA3D_SETDATAOPTIONS_NONE,
FNA3D_SETDATAOPTIONS_DISCARD,
FNA3D_SETDATAOPTIONS_NOOVERWRITE
} FNA3D_SetDataOptions;
typedef enum FNA3D_Blend
{
FNA3D_BLEND_ONE,
FNA3D_BLEND_ZERO,
FNA3D_BLEND_SOURCECOLOR,
FNA3D_BLEND_INVERSESOURCECOLOR,
FNA3D_BLEND_SOURCEALPHA,
FNA3D_BLEND_INVERSESOURCEALPHA,
FNA3D_BLEND_DESTINATIONCOLOR,
FNA3D_BLEND_INVERSEDESTINATIONCOLOR,
FNA3D_BLEND_DESTINATIONALPHA,
FNA3D_BLEND_INVERSEDESTINATIONALPHA,
FNA3D_BLEND_BLENDFACTOR,
FNA3D_BLEND_INVERSEBLENDFACTOR,
FNA3D_BLEND_SOURCEALPHASATURATION
} FNA3D_Blend;
typedef enum FNA3D_BlendFunction
{
FNA3D_BLENDFUNCTION_ADD,
FNA3D_BLENDFUNCTION_SUBTRACT,
FNA3D_BLENDFUNCTION_REVERSESUBTRACT,
FNA3D_BLENDFUNCTION_MAX,
FNA3D_BLENDFUNCTION_MIN
} FNA3D_BlendFunction;
typedef enum FNA3D_ColorWriteChannels
{
FNA3D_COLORWRITECHANNELS_NONE = 0,
FNA3D_COLORWRITECHANNELS_RED = 1,
FNA3D_COLORWRITECHANNELS_GREEN = 2,
FNA3D_COLORWRITECHANNELS_BLUE = 4,
FNA3D_COLORWRITECHANNELS_ALPHA = 8,
FNA3D_COLORWRITECHANNELS_ALL = 15
} FNA3D_ColorWriteChannels;
typedef enum FNA3D_StencilOperation
{
FNA3D_STENCILOPERATION_KEEP,
FNA3D_STENCILOPERATION_ZERO,
FNA3D_STENCILOPERATION_REPLACE,
FNA3D_STENCILOPERATION_INCREMENT,
FNA3D_STENCILOPERATION_DECREMENT,
FNA3D_STENCILOPERATION_INCREMENTSATURATION,
FNA3D_STENCILOPERATION_DECREMENTSATURATION,
FNA3D_STENCILOPERATION_INVERT
} FNA3D_StencilOperation;
typedef enum FNA3D_CompareFunction
{
FNA3D_COMPAREFUNCTION_ALWAYS,
FNA3D_COMPAREFUNCTION_NEVER,
FNA3D_COMPAREFUNCTION_LESS,
FNA3D_COMPAREFUNCTION_LESSEQUAL,
FNA3D_COMPAREFUNCTION_EQUAL,
FNA3D_COMPAREFUNCTION_GREATEREQUAL,
FNA3D_COMPAREFUNCTION_GREATER,
FNA3D_COMPAREFUNCTION_NOTEQUAL
} FNA3D_CompareFunction;
typedef enum FNA3D_CullMode
{
FNA3D_CULLMODE_NONE,
FNA3D_CULLMODE_CULLCLOCKWISEFACE,
FNA3D_CULLMODE_CULLCOUNTERCLOCKWISEFACE
} FNA3D_CullMode;
typedef enum FNA3D_FillMode
{
FNA3D_FILLMODE_SOLID,
FNA3D_FILLMODE_WIREFRAME
} FNA3D_FillMode;
typedef enum FNA3D_TextureAddressMode
{
FNA3D_TEXTUREADDRESSMODE_WRAP,
FNA3D_TEXTUREADDRESSMODE_CLAMP,
FNA3D_TEXTUREADDRESSMODE_MIRROR
} FNA3D_TextureAddressMode;
typedef enum FNA3D_TextureFilter
{
FNA3D_TEXTUREFILTER_LINEAR,
FNA3D_TEXTUREFILTER_POINT,
FNA3D_TEXTUREFILTER_ANISOTROPIC,
FNA3D_TEXTUREFILTER_LINEAR_MIPPOINT,
FNA3D_TEXTUREFILTER_POINT_MIPLINEAR,
FNA3D_TEXTUREFILTER_MINLINEAR_MAGPOINT_MIPLINEAR,
FNA3D_TEXTUREFILTER_MINLINEAR_MAGPOINT_MIPPOINT,
FNA3D_TEXTUREFILTER_MINPOINT_MAGLINEAR_MIPLINEAR,
FNA3D_TEXTUREFILTER_MINPOINT_MAGLINEAR_MIPPOINT
} FNA3D_TextureFilter;
typedef enum FNA3D_VertexElementFormat
{
FNA3D_VERTEXELEMENTFORMAT_SINGLE,
FNA3D_VERTEXELEMENTFORMAT_VECTOR2,
FNA3D_VERTEXELEMENTFORMAT_VECTOR3,
FNA3D_VERTEXELEMENTFORMAT_VECTOR4,
FNA3D_VERTEXELEMENTFORMAT_COLOR,
FNA3D_VERTEXELEMENTFORMAT_BYTE4,
FNA3D_VERTEXELEMENTFORMAT_SHORT2,
FNA3D_VERTEXELEMENTFORMAT_SHORT4,
FNA3D_VERTEXELEMENTFORMAT_NORMALIZEDSHORT2,
FNA3D_VERTEXELEMENTFORMAT_NORMALIZEDSHORT4,
FNA3D_VERTEXELEMENTFORMAT_HALFVECTOR2,
FNA3D_VERTEXELEMENTFORMAT_HALFVECTOR4
} FNA3D_VertexElementFormat;
typedef enum FNA3D_VertexElementUsage
{
FNA3D_VERTEXELEMENTUSAGE_POSITION,
FNA3D_VERTEXELEMENTUSAGE_COLOR,
FNA3D_VERTEXELEMENTUSAGE_TEXTURECOORDINATE,
FNA3D_VERTEXELEMENTUSAGE_NORMAL,
FNA3D_VERTEXELEMENTUSAGE_BINORMAL,
FNA3D_VERTEXELEMENTUSAGE_TANGENT,
FNA3D_VERTEXELEMENTUSAGE_BLENDINDICES,
FNA3D_VERTEXELEMENTUSAGE_BLENDWEIGHT,
FNA3D_VERTEXELEMENTUSAGE_DEPTH,
FNA3D_VERTEXELEMENTUSAGE_FOG,
FNA3D_VERTEXELEMENTUSAGE_POINTSIZE,
FNA3D_VERTEXELEMENTUSAGE_SAMPLE,
FNA3D_VERTEXELEMENTUSAGE_TESSELATEFACTOR
} FNA3D_VertexElementUsage;
/* Structures, should match XNA 4.0 */
typedef struct FNA3D_Color
{
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t a;
} FNA3D_Color;
typedef struct FNA3D_Rect
{
int32_t x;
int32_t y;
int32_t w;
int32_t h;
} FNA3D_Rect;
typedef struct FNA3D_Vec4
{
float x;
float y;
float z;
float w;
} FNA3D_Vec4;
typedef struct FNA3D_Viewport
{
int32_t x;
int32_t y;
int32_t w;
int32_t h;
float minDepth;
float maxDepth;
} FNA3D_Viewport;
typedef struct FNA3D_PresentationParameters
{
int32_t backBufferWidth;
int32_t backBufferHeight;
FNA3D_SurfaceFormat backBufferFormat;
int32_t multiSampleCount;
void* deviceWindowHandle;
uint8_t isFullScreen;
FNA3D_DepthFormat depthStencilFormat;
FNA3D_PresentInterval presentationInterval;
FNA3D_DisplayOrientation displayOrientation;
FNA3D_RenderTargetUsage renderTargetUsage;
} FNA3D_PresentationParameters;
typedef struct FNA3D_BlendState
{
FNA3D_Blend colorSourceBlend;
FNA3D_Blend colorDestinationBlend;
FNA3D_BlendFunction colorBlendFunction;
FNA3D_Blend alphaSourceBlend;
FNA3D_Blend alphaDestinationBlend;
FNA3D_BlendFunction alphaBlendFunction;
FNA3D_ColorWriteChannels colorWriteEnable;
FNA3D_ColorWriteChannels colorWriteEnable1;
FNA3D_ColorWriteChannels colorWriteEnable2;
FNA3D_ColorWriteChannels colorWriteEnable3;
FNA3D_Color blendFactor;
int32_t multiSampleMask;
} FNA3D_BlendState;
typedef struct FNA3D_DepthStencilState
{
uint8_t depthBufferEnable;
uint8_t depthBufferWriteEnable;
FNA3D_CompareFunction depthBufferFunction;
uint8_t stencilEnable;
int32_t stencilMask;
int32_t stencilWriteMask;
uint8_t twoSidedStencilMode;
FNA3D_StencilOperation stencilFail;
FNA3D_StencilOperation stencilDepthBufferFail;
FNA3D_StencilOperation stencilPass;
FNA3D_CompareFunction stencilFunction;
FNA3D_StencilOperation ccwStencilFail;
FNA3D_StencilOperation ccwStencilDepthBufferFail;
FNA3D_StencilOperation ccwStencilPass;
FNA3D_CompareFunction ccwStencilFunction;
int32_t referenceStencil;
} FNA3D_DepthStencilState;
typedef struct FNA3D_RasterizerState
{
FNA3D_FillMode fillMode;
FNA3D_CullMode cullMode;
float depthBias;
float slopeScaleDepthBias;
uint8_t scissorTestEnable;
uint8_t multiSampleAntiAlias;
} FNA3D_RasterizerState;
typedef struct FNA3D_SamplerState
{
FNA3D_TextureFilter filter;
FNA3D_TextureAddressMode addressU;
FNA3D_TextureAddressMode addressV;
FNA3D_TextureAddressMode addressW;
float mipMapLevelOfDetailBias;
int32_t maxAnisotropy;
int32_t maxMipLevel;
} FNA3D_SamplerState;
typedef struct FNA3D_VertexElement
{
int32_t offset;
FNA3D_VertexElementFormat vertexElementFormat;
FNA3D_VertexElementUsage vertexElementUsage;
int32_t usageIndex;
} FNA3D_VertexElement;
typedef struct FNA3D_VertexDeclaration
{
int32_t vertexStride;
int32_t elementCount;
FNA3D_VertexElement *elements;
} FNA3D_VertexDeclaration;
typedef struct FNA3D_VertexBufferBinding
{
FNA3D_Buffer *vertexBuffer;
FNA3D_VertexDeclaration vertexDeclaration;
int32_t vertexOffset;
int32_t instanceFrequency;
} FNA3D_VertexBufferBinding;
typedef struct FNA3D_RenderTargetBinding
{
/* Basic target information */
#define FNA3D_RENDERTARGET_TYPE_2D 0
#define FNA3D_RENDERTARGET_TYPE_CUBE 1
uint8_t type;
FNA3DNAMELESS union
{
struct
{
int32_t width;
int32_t height;
} twod;
struct
{
int32_t size;
FNA3D_CubeMapFace face;
} cube;
};
/* If this is >1, you MUST call ResolveTarget after rendering! */
int32_t levelCount;
/* If this is >1, colorBuffer MUST be non-NULL! */
int32_t multiSampleCount;
/* Destination texture. This MUST be non-NULL! */
FNA3D_Texture *texture;
/* If this is non-NULL, you MUST call ResolveTarget after rendering! */
FNA3D_Renderbuffer *colorBuffer;
} FNA3D_RenderTargetBinding;
/* Version API */
#define FNA3D_ABI_VERSION 0
#define FNA3D_MAJOR_VERSION 22
#define FNA3D_MINOR_VERSION 12
#define FNA3D_PATCH_VERSION 0
#define FNA3D_COMPILED_VERSION ( \
(FNA3D_ABI_VERSION * 100 * 100 * 100) + \
(FNA3D_MAJOR_VERSION * 100 * 100) + \
(FNA3D_MINOR_VERSION * 100) + \
(FNA3D_PATCH_VERSION) \
)
FNA3DAPI uint32_t FNA3D_LinkedVersion(void);
/* Functions */
/* Logging */
typedef void (FNA3DCALL * FNA3D_LogFunc)(const char *msg);
/* Reroutes FNA3D's logging to custom logging functions.
*
* info: Basic logs that might be useful to have stored for support.
* warn: Something went wrong, but it's really just annoying, not fatal.
* error: You better have this stored somewhere because it's crashing now!
*/
FNA3DAPI void FNA3D_HookLogFunctions(
FNA3D_LogFunc info,
FNA3D_LogFunc warn,
FNA3D_LogFunc error
);
/* Init/Quit */
/* Selects the most suitable graphics rendering backend for the system, then
* provides the application with context-sensitive bitflags for the OS window.
*
* Returns a bitflag value, typically SDL_WindowFlags masks.
*/
FNA3DAPI uint32_t FNA3D_PrepareWindowAttributes(void);
/* After your device is created, call this to check for high-DPI support.
*
* Note that this will NOT work if it's called after the window is created but
* before the device! Not all platforms create drawable surfaces at the same
* time as the window!
*
* window: The OS window handle, typically an SDL_Window*.
* w: Filled with the width of the window's drawable canvas.
* h: Filled with the height of the window's drawable canvas.
*/
FNA3DAPI void FNA3D_GetDrawableSize(void* window, int32_t *w, int32_t *h);
/* Creates a rendering context for use on the calling thread.
*
* presentationParameters: The initial device/backbuffer settings.
* debugMode: Enable debugging and backend validation features
* at the cost of reduced overall performance.
*
* Returns a device ready for use. Be sure to only call device functions from
* the thread that it was created on!
*/
FNA3DAPI FNA3D_Device* FNA3D_CreateDevice(
FNA3D_PresentationParameters *presentationParameters,
uint8_t debugMode
);
/* Destroys a rendering context previously returned by FNA3D_CreateDevice. */
FNA3DAPI void FNA3D_DestroyDevice(FNA3D_Device *device);
/* Presentation */
/* Presents the backbuffer to the window.
*
* sourceRectangle: The region of the buffer to present (or NULL).
* destinationRectangle: The region of the window to update (or NULL).
* overrideWindowHandle: The OS window handle (not really "overridden").
*/
FNA3DAPI void FNA3D_SwapBuffers(
FNA3D_Device *device,
FNA3D_Rect *sourceRectangle,
FNA3D_Rect *destinationRectangle,
void* overrideWindowHandle
);
/* Drawing */
/* Clears the active draw buffers of any previous contents.
*
* options: Bitflags to specify color/depth/stencil buffers for clearing.
* color: The new value of the cleared color buffer. It is STRONGLY
* recommended to use 0.0f and 1.0f for all color channels!
* depth: The new value of the cleared depth buffer.
* stencil: The new value of the cleared stencil buffer.
*/
FNA3DAPI void FNA3D_Clear(
FNA3D_Device *device,
FNA3D_ClearOptions options,
FNA3D_Vec4 *color,
float depth,
int32_t stencil
);
/* Draws data from vertex/index buffers.
*
* primitiveType: The primitive topology of the vertex data.
* baseVertex: The starting offset to read from the vertex buffer.
* minVertexIndex: The lowest index value expected from the index buffer.
* numVertices: The highest offset expected from the index buffer.
* startIndex: The starting offset to read from the index buffer.
* primitiveCount: The number of primitives to draw.
* indices: The index buffer to bind for this draw call.
* indexElementSize: The size of the index type for this index buffer.
*/
FNA3DAPI void FNA3D_DrawIndexedPrimitives(
FNA3D_Device *device,
FNA3D_PrimitiveType primitiveType,
int32_t baseVertex,
int32_t minVertexIndex,
int32_t numVertices,
int32_t startIndex,
int32_t primitiveCount,
FNA3D_Buffer *indices,
FNA3D_IndexElementSize indexElementSize
);
/* Draws data from vertex/index buffers with instancing enabled.
*
* primitiveType: The primitive topology of the vertex data.
* baseVertex: The starting offset to read from the vertex buffer.
* minVertexIndex: The lowest index value expected from the index buffer.
* numVertices: The highest offset expected from the index buffer.
* startIndex: The starting offset to read from the index buffer.
* primitiveCount: The number of primitives to draw.
* instanceCount: The number of instances that will be drawn.
* indices: The index buffer to bind for this draw call.
* indexElementSize: The size of the index type for this index buffer.
*/
FNA3DAPI void FNA3D_DrawInstancedPrimitives(
FNA3D_Device *device,
FNA3D_PrimitiveType primitiveType,
int32_t baseVertex,
int32_t minVertexIndex,
int32_t numVertices,
int32_t startIndex,
int32_t primitiveCount,
int32_t instanceCount,
FNA3D_Buffer *indices,
FNA3D_IndexElementSize indexElementSize
);
/* Draws data from vertex buffers.
* primitiveType: The primitive topology of the vertex data.
* vertexStart: The starting offset to read from the vertex buffer.
* primitiveCount: The number of primitives to draw.
*/
FNA3DAPI void FNA3D_DrawPrimitives(
FNA3D_Device *device,
FNA3D_PrimitiveType primitiveType,
int32_t vertexStart,
int32_t primitiveCount
);
/* Mutable Render States */
/* Sets the view dimensions for rendering, relative to the active render target.
* It is required to call this at least once after calling SetRenderTargets, as
* the renderer may need to adjust these dimensions to fit the backend's
* potentially goofy coordinate systems.
*
* viewport: The new view dimensions for future draw calls.
*/
FNA3DAPI void FNA3D_SetViewport(FNA3D_Device *device, FNA3D_Viewport *viewport);
/* Sets the scissor box for rendering, relative to the active render target.
* It is required to call this at least once after calling SetRenderTargets, as
* the renderer may need to adjust these dimensions to fit the backend's
* potentially goofy coordinate systems.
*
* scissor: The new scissor box for future draw calls.
*/
FNA3DAPI void FNA3D_SetScissorRect(FNA3D_Device *device, FNA3D_Rect *scissor);
/* Gets the blending factor used for current draw calls.
*
* blendFactor: Filled with color being used as the device blend factor.
*/
FNA3DAPI void FNA3D_GetBlendFactor(
FNA3D_Device *device,
FNA3D_Color *blendFactor
);
/* Sets the blending factor used for future draw calls.
*
* blendFactor: The color to use as the device blend factor.
*/
FNA3DAPI void FNA3D_SetBlendFactor(
FNA3D_Device *device,
FNA3D_Color *blendFactor
);
/* Gets the mask from which multisample fragment data is sampled from.
*
* Returns the coverage mask used to determine sample locations.
*/
FNA3DAPI int32_t FNA3D_GetMultiSampleMask(FNA3D_Device *device);
/* Sets the mask with which multisample fragment data will be sampled from.
*
* mask: The new coverage mask to use for determining sample locations.
*/
FNA3DAPI void FNA3D_SetMultiSampleMask(FNA3D_Device *device, int32_t mask);
/* Gets the reference value used for certain types of stencil testing.
*
* Returns the stencil reference value.
*/
FNA3DAPI int32_t FNA3D_GetReferenceStencil(FNA3D_Device *device);
/* Sets the reference value used for certain types of stencil testing.
*
* ref: The new stencil reference value.
*/
FNA3DAPI void FNA3D_SetReferenceStencil(FNA3D_Device *device, int32_t ref);
/* Immutable Render States */
/* Applies a blending state to use for future draw calls. This only needs to be
* called when the state actually changes. Redundant calls may negatively affect
* performance!
*
* blendState: The new parameters to use for color blending.
*/
FNA3DAPI void FNA3D_SetBlendState(
FNA3D_Device *device,
FNA3D_BlendState *blendState
);
/* Applies depth/stencil states to use for future draw calls. This only needs to
* be called when the states actually change. Redundant calls may negatively
* affect performance!
*
* depthStencilState: The new parameters to use for depth/stencil work.
*/
FNA3DAPI void FNA3D_SetDepthStencilState(
FNA3D_Device *device,
FNA3D_DepthStencilState *depthStencilState
);
/* Applies the rasterizing state to use for future draw calls.
* It's generally a good idea to call this for each draw call, but if you really
* wanted to you could try reducing it to when the state changes and when the
* render target state changes.
*
* rasterizerState: The new parameters to use for rasterization work.
*/
FNA3DAPI void FNA3D_ApplyRasterizerState(
FNA3D_Device *device,
FNA3D_RasterizerState *rasterizerState
);
/* Updates a sampler slot with new texture/sampler data for future draw calls.
* This should only be called on slots that have modified texture/sampler state.
* Redundant calls may negatively affect performance!
*
* index: The sampler slot to update.
* texture: The texture bound to this sampler.
* sampler: The new parameters to use for this slot's texture sampling.
*/
FNA3DAPI void FNA3D_VerifySampler(
FNA3D_Device *device,
int32_t index,
FNA3D_Texture *texture,
FNA3D_SamplerState *sampler
);
/* Updates a vertex sampler slot with new texture/sampler data for future draw
* calls. This should only be called on slots that have modified texture/sampler
* state. Redundant calls may negatively affect performance!
*
* index: The vertex sampler slot to update.
* texture: The texture bound to this sampler.
* sampler: The new parameters to use for this slot's texture sampling.
*/
FNA3DAPI void FNA3D_VerifyVertexSampler(
FNA3D_Device *device,
int32_t index,
FNA3D_Texture *texture,
FNA3D_SamplerState *sampler
);
/* Updates the vertex attribute state to read from a set of vertex buffers. This
* should be the very last thing you call before making a draw call, as this
* does all the final prep work for the shader program before it's ready to use.
*
* bindings: The vertex buffers and their attribute data.
* numBindings: The number of elements in the bindings array.
* bindingsUpdated: If the bindings array hasn't changed since the last
* update, this can be false. We'll only update the shader
* state, updating vertex attribute data only if we 100%
* have to, for a tiny performance improvement.
* baseVertex: This should be the same as the `baseVertex` parameter
* from your Draw*Primitives call, if applicable. Not every
* rendering backend has native base vertex support, so we
* work around it by passing this here.
*/
FNA3DAPI void FNA3D_ApplyVertexBufferBindings(
FNA3D_Device *device,
FNA3D_VertexBufferBinding *bindings,
int32_t numBindings,
uint8_t bindingsUpdated,
int32_t baseVertex
);
/* Render Targets */
/* Sets the color/depth/stencil buffers to write future draw calls to.
*
* renderTargets: The targets to write to, or NULL for the backbuffer.
* numRenderTargets: The size of the renderTargets array (can be 0).
* depthStencilBuffer: The depth/stencil renderbuffer (can be NULL).
* depthFormat: The format of the depth/stencil renderbuffer.
* preserveTargetContents:
* Set this to 1 to store the color/depth/stencil contents
* for future use. Most of the time you'll want to
* keep this at 0 to not waste GPU bandwidth.
*/
FNA3DAPI void FNA3D_SetRenderTargets(
FNA3D_Device *device,
FNA3D_RenderTargetBinding *renderTargets,
int32_t numRenderTargets,
FNA3D_Renderbuffer *depthStencilBuffer,
FNA3D_DepthFormat depthFormat,
uint8_t preserveTargetContents
);
/* After unsetting a render target, call this to resolve multisample targets or
* generate mipmap data for the final texture.
*
* target: The render target to resolve once rendering is complete.
*/
FNA3DAPI void FNA3D_ResolveTarget(
FNA3D_Device *device,
FNA3D_RenderTargetBinding *target
);
/* Backbuffer Functions */
/* After modifying the OS window state, call this to reset the backbuffer to
* match your window changes.
*
* presentationParameters: The new settings for the backbuffer.
*/
FNA3DAPI void FNA3D_ResetBackbuffer(
FNA3D_Device *device,
FNA3D_PresentationParameters *presentationParameters
);
/* Read the backbuffer's contents directly into client memory. This function is
* basically one giant CPU/GPU sync point, do NOT ever call this during any
* performance-critical situation! Just use it for screenshots.
*
* x: The x offset of the backbuffer region to read.
* y: The y offset of the backbuffer region to read.
* w: The width of the backbuffer region to read.
* h: The height of the backbuffer region to read.
* data: The pointer to read the backbuffer data into.
* dataLength: The size of the backbuffer data in bytes.
*/
FNA3DAPI void FNA3D_ReadBackbuffer(
FNA3D_Device *device,
int32_t x,
int32_t y,
int32_t w,
int32_t h,
void* data,
int32_t dataLength
);
/* Gets the current dimensions of the backbuffer.
*
* w: Filled with the backbuffer's width.
* h: Filled with the backbuffer's height.
*/
FNA3DAPI void FNA3D_GetBackbufferSize(
FNA3D_Device *device,
int32_t *w,
int32_t *h
);
/* Gets the current pixel format of the backbuffer.
*
* Returns the backbuffer's pixel format.
*/
FNA3DAPI FNA3D_SurfaceFormat FNA3D_GetBackbufferSurfaceFormat(
FNA3D_Device *device
);
/* Gets the format of the backbuffer's depth/stencil buffer.
*
* Returns the backbuffer's depth/stencil format.
*/
FNA3DAPI FNA3D_DepthFormat FNA3D_GetBackbufferDepthFormat(FNA3D_Device *device);
/* Gets the multisample sample count of the backbuffer.
*
* Returns the backbuffer's multisample sample count.
*/
FNA3DAPI int32_t FNA3D_GetBackbufferMultiSampleCount(FNA3D_Device *device);
/* Textures */
/* Creates a 2D texture to be applied to VerifySampler.
*
* format: The pixel format of the texture data.
* width: The width of the texture image.
* height: The height of the texture image.
* levelCount: The number of mipmap levels to allocate.
* isRenderTarget: Set this to 1 when using this with SetRenderTargets.
*
* Returns an allocated FNA3D_Texture* object. Note that the contents of the
* texture are undefined, so you must call SetData at least once before drawing!
*/
FNA3DAPI FNA3D_Texture* FNA3D_CreateTexture2D(
FNA3D_Device *device,
FNA3D_SurfaceFormat format,
int32_t width,
int32_t height,
int32_t levelCount,
uint8_t isRenderTarget
);
/* Creates a 3D texture to be applied to VerifySampler.
*
* format: The pixel format of the texture data.
* width: The width of the texture image.
* height: The height of the texture image.
* depth: The depth of the texture image.
* levelCount: The number of mipmap levels to allocate.
*
* Returns an allocated FNA3D_Texture* object. Note that the contents of the
* texture are undefined, so you must call SetData at least once before drawing!
*/
FNA3DAPI FNA3D_Texture* FNA3D_CreateTexture3D(
FNA3D_Device *device,
FNA3D_SurfaceFormat format,
int32_t width,
int32_t height,
int32_t depth,
int32_t levelCount
);
/* Creates a texture cube to be applied to VerifySampler.
*
* format: The pixel format of the texture data.
* size: The length of a single edge of the texture cube.
* levelCount: The number of mipmap levels to allocate.
* isRenderTarget: Set this to 1 when using this with SetRenderTargets.
*
* Returns an allocated FNA3D_Texture* object. Note that the contents of the
* texture are undefined, so you must call SetData at least once before drawing!
*/
FNA3DAPI FNA3D_Texture* FNA3D_CreateTextureCube(
FNA3D_Device *device,
FNA3D_SurfaceFormat format,
int32_t size,
int32_t levelCount,
uint8_t isRenderTarget
);
/* Sends a texture to be destroyed by the renderer. Note that we call it
* "AddDispose" because it may not be immediately destroyed by the renderer if
* this is not called from the main thread (for example, if a garbage collector
* deletes the resource instead of the programmer).
*
* texture: The FNA3D_Texture to be destroyed.
*/
FNA3DAPI void FNA3D_AddDisposeTexture(
FNA3D_Device *device,
FNA3D_Texture *texture
);
/* Uploads image data to a 2D texture object.
*
* texture: The texture to be updated.
* x: The x offset of the subregion being updated.
* y: The y offset of the subregion being updated.
* w: The width of the subregion being updated.
* h: The height of the subregion being updated.
* level: The mipmap level being updated.
* data: A pointer to the image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_SetTextureData2D(
FNA3D_Device *device,
FNA3D_Texture *texture,
int32_t x,
int32_t y,
int32_t w,
int32_t h,
int32_t level,
void* data,
int32_t dataLength
);
/* Uploads image data to a 3D texture object.
*
* texture: The texture to be updated.
* x: The x offset of the subregion being updated.
* y: The y offset of the subregion being updated.
* z: The z offset of the subregion being updated.
* w: The width of the subregion being updated.
* h: The height of the subregion being updated.
* d: The depth of the subregion being updated.
* level: The mipmap level being updated.
* data: A pointer to the image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_SetTextureData3D(
FNA3D_Device *device,
FNA3D_Texture *texture,
int32_t x,
int32_t y,
int32_t z,
int32_t w,
int32_t h,
int32_t d,
int32_t level,
void* data,
int32_t dataLength
);
/* Uploads image data to a single face of a texture cube object.
*
* texture: The texture to be updated.
* x: The x offset of the subregion being updated.
* y: The y offset of the subregion being updated.
* w: The width of the subregion being updated.
* h: The height of the subregion being updated.
* cubeMapFace: The face of the cube being updated.
* level: The mipmap level being updated.
* data: A pointer to the image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_SetTextureDataCube(
FNA3D_Device *device,
FNA3D_Texture *texture,
int32_t x,
int32_t y,
int32_t w,
int32_t h,
FNA3D_CubeMapFace cubeMapFace,
int32_t level,
void* data,
int32_t dataLength
);
/* Uploads YUV image data to three ALPHA8 texture objects.
*
* y: The texture storing the Y data.
* u: The texture storing the U (Cb) data.
* v: The texture storing the V (Cr) data.
* yWidth: The width of the Y plane.
* yHeight: The height of the Y plane.
* uvWidth: The width of the U/V planes.
* uvHeight: The height of the U/V planes.
* data: A pointer to the raw YUV image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_SetTextureDataYUV(
FNA3D_Device *device,
FNA3D_Texture *y,
FNA3D_Texture *u,
FNA3D_Texture *v,
int32_t yWidth,
int32_t yHeight,
int32_t uvWidth,
int32_t uvHeight,
void* data,
int32_t dataLength
);
/* Pulls image data from a 2D texture into client memory. Like any GetData,
* this is generally asking for a massive CPU/GPU sync point, don't call this
* unless there's absolutely no other way to use the image data!
*
* texture: The texture object being read.
* x: The x offset of the subregion being read.
* y: The y offset of the subregion being read.
* w: The width of the subregion being read.
* h: The height of the subregion being read.
* level: The mipmap level being read.
* data: The pointer being filled with the image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_GetTextureData2D(
FNA3D_Device *device,
FNA3D_Texture *texture,
int32_t x,
int32_t y,
int32_t w,
int32_t h,
int32_t level,
void* data,
int32_t dataLength
);
/* Pulls image data from a 3D texture into client memory. Like any GetData,
* this is generally asking for a massive CPU/GPU sync point, don't call this
* unless there's absolutely no other way to use the image data!
*
* texture: The texture object being read.
* x: The x offset of the subregion being read.
* y: The y offset of the subregion being read.
* z: The z offset of the subregion being read.
* w: The width of the subregion being read.
* h: The height of the subregion being read.
* d: The depth of the subregion being read.
* level: The mipmap level being read.
* data: The pointer being filled with the image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_GetTextureData3D(
FNA3D_Device *device,
FNA3D_Texture *texture,
int32_t x,
int32_t y,
int32_t z,
int32_t w,
int32_t h,
int32_t d,
int32_t level,
void* data,
int32_t dataLength
);
/* Pulls image data from a single face of a texture cube object into client
* memory. Like any GetData, this is generally asking for a massive CPU/GPU sync
* point, don't call this unless there's absolutely no other way to use the
* image data!
*
* texture: The texture object being read.
* x: The x offset of the subregion being read.
* y: The y offset of the subregion being read.
* w: The width of the subregion being read.
* h: The height of the subregion being read.
* cubeMapFace: The face of the cube being read.
* level: The mipmap level being read.
* data: The pointer being filled with the image data.
* dataLength: The size of the image data in bytes.
*/
FNA3DAPI void FNA3D_GetTextureDataCube(
FNA3D_Device *device,
FNA3D_Texture *texture,
int32_t x,
int32_t y,
int32_t w,
int32_t h,
FNA3D_CubeMapFace cubeMapFace,
int32_t level,
void* data,
int32_t dataLength
);
/* Renderbuffers */
/* Creates a color buffer to be used by SetRenderTargets/ResolveTarget.
*
* width: The width of the color buffer.
* height: The height of the color buffer.
* format: The pixel format of the color buffer.
* multiSampleCount: The MSAA value for the color buffer.
* texture: The texture that this buffer will be resolving to.
*
* Returns a color FNA3D_Renderbuffer object.
*/
FNA3DAPI FNA3D_Renderbuffer* FNA3D_GenColorRenderbuffer(
FNA3D_Device *device,
int32_t width,
int32_t height,
FNA3D_SurfaceFormat format,
int32_t multiSampleCount,
FNA3D_Texture *texture
);
/* Creates a depth/stencil buffer to be used by SetRenderTargets.
*
* width: The width of the depth/stencil buffer.
* height: The height of the depth/stencil buffer.
* format: The storage format of the depth/stencil buffer.
* multiSampleCount: The MSAA value for the depth/stencil buffer.
*
* Returns a depth/stencil FNA3D_Renderbuffer object.
*/
FNA3DAPI FNA3D_Renderbuffer* FNA3D_GenDepthStencilRenderbuffer(
FNA3D_Device *device,
int32_t width,
int32_t height,
FNA3D_DepthFormat format,
int32_t multiSampleCount
);
/* Sends a renderbuffer to be destroyed by the renderer. Note that we call it
* "AddDispose" because it may not be immediately destroyed by the renderer if
* this is not called from the main thread (for example, if a garbage collector
* deletes the resource instead of the programmer).
*
* renderbuffer: The FNA3D_Renderbuffer to be destroyed.
*/
FNA3DAPI void FNA3D_AddDisposeRenderbuffer(
FNA3D_Device *device,
FNA3D_Renderbuffer *renderbuffer
);
/* Vertex Buffers */
/* Creates a vertex buffer to be used by Draw*Primitives.
*
* dynamic: Set to 1 if this buffer will be updated frequently.
* usage: Set to WRITEONLY if you do not intend to call GetData.
* sizeInBytes: The length of the vertex buffer.
*
* Returns an allocated FNA3D_Buffer* object. Note that the contents of the
* buffer are undefined, so you must call SetData at least once before drawing!
*/
FNA3DAPI FNA3D_Buffer* FNA3D_GenVertexBuffer(
FNA3D_Device *device,
uint8_t dynamic,
FNA3D_BufferUsage usage,
int32_t sizeInBytes
);
/* Sends a vertex buffer to be destroyed by the renderer. Note that we call it
* "AddDispose" because it may not be immediately destroyed by the renderer if
* this is not called from the main thread (for example, if a garbage collector
* deletes the resource instead of the programmer).
*
* buffer: The FNA3D_Buffer to be destroyed.
*/
FNA3DAPI void FNA3D_AddDisposeVertexBuffer(
FNA3D_Device *device,
FNA3D_Buffer *buffer
);
/* Sets a region of the vertex buffer with client data.
*
* buffer: The vertex buffer to be updated.
* offsetInBytes: The starting offset of the buffer to write into.
* data: The client data to write into the buffer.
* elementCount: The number of elements from the client buffer to write.
* elementSizeInBytes: The size of each element in the client buffer.
* vertexStride: Try to set this to the same value as elementSizeInBytes.
* XNA has this ridiculous thing where if vertexStride is
* greater than elementSizeInBytes, it tries to do partial
* updates of each vertex with the client data's smaller
* elements. It's... just, really bad. Don't try to use it.
* You probably just want '1' for both parameters, so that
* elementCount can just be the buffer length in bytes.
* options: Try not to call NONE if this is a dynamic buffer!
*/
FNA3DAPI void FNA3D_SetVertexBufferData(
FNA3D_Device *device,
FNA3D_Buffer *buffer,
int32_t offsetInBytes,
void* data,
int32_t elementCount,
int32_t elementSizeInBytes,
int32_t vertexStride,
FNA3D_SetDataOptions options
);
/* Pulls data from a region of the vertex buffer into a client pointer.
*
* buffer: The vertex buffer to be read from.
* offsetInBytes: The starting offset of the buffer to write into.
* data: The client data to write into from the buffer.
* elementCount: The number of elements from the client buffer to read.
* elementSizeInBytes: The size of each element in the client buffer.
* vertexStride: Try to set this to the same value as elementSizeInBytes.
* XNA has this ridiculous thing where if vertexStride is
* greater than elementSizeInBytes, it tries to do partial
* updates of each vertex with the client data's smaller
* elements. It's... just, really bad. Don't try to use it.
* You probably just want '1' for both parameters, so that
* elementCount can just be the buffer length in bytes.
*/
FNA3DAPI void FNA3D_GetVertexBufferData(
FNA3D_Device *device,
FNA3D_Buffer *buffer,
int32_t offsetInBytes,
void* data,
int32_t elementCount,
int32_t elementSizeInBytes,
int32_t vertexStride
);
/* Index Buffers */
/* Creates an index buffer to be used by Draw*Primitives.
*
* dynamic: Set to 1 if this buffer will be updated frequently.
* usage: Set to WRITEONLY if you do not intend to call GetData.
* sizeInBytes: The length of the vertex buffer.
*
* Returns an allocated FNA3D_Buffer* object. Note that the contents of the
* buffer are undefined, so you must call SetData at least once before drawing!
*/
FNA3DAPI FNA3D_Buffer* FNA3D_GenIndexBuffer(
FNA3D_Device *device,
uint8_t dynamic,
FNA3D_BufferUsage usage,
int32_t sizeInBytes
);
/* Sends an index buffer to be destroyed by the renderer. Note that we call it
* "AddDispose" because it may not be immediately destroyed by the renderer if
* this is not called from the main thread (for example, if a garbage collector
* deletes the resource instead of the programmer).
*
* buffer: The FNA3D_Buffer to be destroyed.
*/
FNA3DAPI void FNA3D_AddDisposeIndexBuffer(
FNA3D_Device *device,
FNA3D_Buffer *buffer
);
/* Sets a region of the index buffer with client data.
*
* buffer: The index buffer to be updated.
* offsetInBytes: The starting offset of the buffer to write into.
* data: The client data to write into the buffer.
* dataLength: The size (in bytes) of the client data.
* options: Try not to call NONE if this is a dynamic buffer!
*/
FNA3DAPI void FNA3D_SetIndexBufferData(
FNA3D_Device *device,
FNA3D_Buffer *buffer,
int32_t offsetInBytes,
void* data,
int32_t dataLength,
FNA3D_SetDataOptions options
);
/* Pulls data from a region of the index buffer into a client pointer.
*
* buffer: The index buffer to be read from.
* offsetInBytes: The starting offset of the buffer to read from.
* data: The pointer to read buffer data into.
* dataLength: The size (in bytes) of the client data.
*/
FNA3DAPI void FNA3D_GetIndexBufferData(
FNA3D_Device *device,
FNA3D_Buffer *buffer,
int32_t offsetInBytes,
void* data,
int32_t dataLength
);
/* Effects */
/* When using this API, be sure to include mojoshader.h! */
#ifndef _INCL_MOJOSHADER_H_
typedef struct MOJOSHADER_effect MOJOSHADER_effect;
typedef struct MOJOSHADER_effectTechnique MOJOSHADER_effectTechnique;
typedef struct MOJOSHADER_effectStateChanges MOJOSHADER_effectStateChanges;
#endif /* _INCL_MOJOSHADER_H_ */
/* Parses and compiles a Direct3D 9 Effects Framework binary.
*
* effectCode: The D3D9 Effect binary blob.
* effectCodeLength: The size (in bytes) of the blob.
* effect: Filled with the compiled FNA3D_Effect*.
* effectData: Filled with the parsed Effect Framework data. This
* pointer is valid until the effect is disposed.
*/
FNA3DAPI void FNA3D_CreateEffect(
FNA3D_Device *device,
uint8_t *effectCode,
uint32_t effectCodeLength,
FNA3D_Effect **effect,
MOJOSHADER_effect **effectData
);
/* Copies a compiled Effect, including its current technique/parameter data.
*
* cloneSource: The FNA3D_Effect to copy.
* effect: Filled with the new compiled FNA3D_Effect*.
* effectData: Filled with the copied Effect Framework data.
*/
FNA3DAPI void FNA3D_CloneEffect(
FNA3D_Device *device,
FNA3D_Effect *cloneSource,
FNA3D_Effect **effect,
MOJOSHADER_effect **effectData
);
/* Sends an Effect to be destroyed by the renderer. Note that we call it
* "AddDispose" because it may not be immediately destroyed by the renderer if
* this is not called from the main thread (for example, if a garbage collector
* deletes the resource instead of the programmer).
*
* effect: The FNA3D_Effect to be destroyed.
*/
FNA3DAPI void FNA3D_AddDisposeEffect(
FNA3D_Device *device,
FNA3D_Effect *effect
);
/* Sets the active technique on the Effect.
*
* effect: The Effect to be modified.
* technique: The technique to be used by future ApplyEffect calls.
*/
FNA3DAPI void FNA3D_SetEffectTechnique(
FNA3D_Device *device,
FNA3D_Effect *effect,
MOJOSHADER_effectTechnique *technique
);
/* Applies an effect pass from a given Effect, setting the active shader program
* and committing any parameter data changes to be used by future draw calls.
*
* effect: The Effect to be applied.
* pass: The current technique's pass index to be applied.
* stateChanges: Structure to be filled with any render state changes
* made by the Effect. This must be valid for the entire
* duration that this Effect is being applied.
*/
FNA3DAPI void FNA3D_ApplyEffect(
FNA3D_Device *device,
FNA3D_Effect *effect,
uint32_t pass,
MOJOSHADER_effectStateChanges *stateChanges
);
/* Applies an effect pass from a given Effect, setting the active shader program
* and committing and parameter data changes to be used by future draw calls,
* while also caching the current program object to be stored once this Effect's
* pass has been completed.
*
* effect: The Effect to be applied.
* stateChanges: Structure to be filled with any render state changes
* made by the Effect. This must be valid for the entire
* duration that this Effect is being applied.
*/
FNA3DAPI void FNA3D_BeginPassRestore(
FNA3D_Device *device,
FNA3D_Effect *effect,
MOJOSHADER_effectStateChanges *stateChanges
);
/* Ends a pass started by BeginPassRestore, unsetting the current Effect and
* restoring the previous shader state from before BeginPassRestore was called.
*
* effect: The Effect that was applied at BeginPassRestore.
*/
FNA3DAPI void FNA3D_EndPassRestore(
FNA3D_Device *device,
FNA3D_Effect *effect
);
/* Queries */
/* Creates an object used to run occlusion queries.
*
* Returns an FNA3D_Query object.
*/
FNA3DAPI FNA3D_Query* FNA3D_CreateQuery(FNA3D_Device *device);
/* Sends a query object to be destroyed by the renderer. Note that we call it
* "AddDispose" because it may not be immediately destroyed by the renderer if
* this is not called from the main thread (for example, if a garbage collector
* deletes the resource instead of the programmer).
*
* query: The FNA3D_Query to be destroyed.
*/
FNA3DAPI void FNA3D_AddDisposeQuery(FNA3D_Device *device, FNA3D_Query *query);
/* Marks the start of when a query object should count pixels written.
*
* query: The FNA3D_Query to start.
*/
FNA3DAPI void FNA3D_QueryBegin(FNA3D_Device *device, FNA3D_Query *query);
/* Marks the end of when a query object should count pixels written. Note that
* this does NOT mean the query has finished executing, you will need to poll
* QueryComplete before checking the pixel count.
*
* query: The FNA3D_Query to stop.
*/
FNA3DAPI void FNA3D_QueryEnd(FNA3D_Device *device, FNA3D_Query *query);
/* Call this until the function returns 1 to safely query for pixel counts.
*
* query: The FNA3D_Query to sync with.
*
* Returns 1 when complete, 0 when still in execution.
*/
FNA3DAPI uint8_t FNA3D_QueryComplete(FNA3D_Device *device, FNA3D_Query *query);
/* Query the pixels counted between the begin/end markers set for the object.
*
* query: The FNA3D_Query to poll for pixel count
*
* Returns the pixels written during the begin/end period.
*/
FNA3DAPI int32_t FNA3D_QueryPixelCount(
FNA3D_Device *device,
FNA3D_Query *query
);
/* Feature Queries */
/* Returns 1 if the renderer natively supports DXT1 texture data. */
FNA3DAPI uint8_t FNA3D_SupportsDXT1(FNA3D_Device *device);
/* Returns 1 if the renderer natively supports S3TC texture data. */
FNA3DAPI uint8_t FNA3D_SupportsS3TC(FNA3D_Device *device);
/* Returns 1 if the renderer natively supports BC7 texture data. */
FNA3DAPI uint8_t FNA3D_SupportsBC7(FNA3D_Device *device);
/* Returns 1 if the renderer natively supports hardware instancing. */
FNA3DAPI uint8_t FNA3D_SupportsHardwareInstancing(FNA3D_Device *device);
/* Returns 1 if the renderer natively supports asynchronous buffer writing. */
FNA3DAPI uint8_t FNA3D_SupportsNoOverwrite(FNA3D_Device *device);
/* Returns 1 if the renderer natively supports SRGB render targets. */
FNA3DAPI uint8_t FNA3D_SupportsSRGBRenderTargets(FNA3D_Device *device);
/* Returns the number of sampler slots supported by the renderer. */
FNA3DAPI void FNA3D_GetMaxTextureSlots(
FNA3D_Device *device,
int32_t *textures,
int32_t *vertexTextures
);
/* Returns the highest multisample count supported for anti-aliasing.
*
* format: The pixel format to query for MSAA support.
* multiSampleCount: The max MSAA value requested for this format.
*
* Returns a hardware-specific version of min(preferred, possible).
*/
FNA3DAPI int32_t FNA3D_GetMaxMultiSampleCount(
FNA3D_Device *device,
FNA3D_SurfaceFormat format,
int32_t multiSampleCount
);
/* Debugging */
/* Sets an arbitrary string constant to be stored in a rendering API trace,
* useful for labeling call streams for debugging purposes.
*
* text: The string constant to mark in the API call stream.
*/
FNA3DAPI void FNA3D_SetStringMarker(FNA3D_Device *device, const char *text);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* FNA3D_H */
/* vim: set noexpandtab shiftwidth=8 tabstop=8: */