Compare commits
No commits in common. "main" and "1.12.0" have entirely different histories.
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@ -8,8 +8,8 @@ option(BUILD_SHARED_LIBS "Build shared library" ON)
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# Version
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SET(LIB_MAJOR_VERSION "1")
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SET(LIB_MINOR_VERSION "15")
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SET(LIB_REVISION "4")
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SET(LIB_MINOR_VERSION "12")
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SET(LIB_REVISION "0")
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SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_REVISION}")
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# Build Type
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@ -60,11 +60,6 @@ if(NOT MSVC)
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set_property(TARGET Refresh PROPERTY COMPILE_FLAGS "-std=gnu99 -Wall -Wno-strict-aliasing -pedantic")
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endif()
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# Windows is silly and we need to manually include the Vulkan SDK
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if(MSVC)
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target_include_directories(Refresh PUBLIC $ENV{VULKAN_SDK}/include)
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endif()
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# Refresh folders as includes, for other targets to consume
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target_include_directories(Refresh PUBLIC
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
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@ -55,8 +55,8 @@ extern "C" {
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/* Version API */
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#define REFRESH_MAJOR_VERSION 1
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#define REFRESH_MINOR_VERSION 15
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#define REFRESH_PATCH_VERSION 4
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#define REFRESH_MINOR_VERSION 12
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#define REFRESH_PATCH_VERSION 0
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#define REFRESH_COMPILED_VERSION ( \
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(REFRESH_MAJOR_VERSION * 100 * 100) + \
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@ -76,7 +76,6 @@ typedef struct Refresh_ShaderModule Refresh_ShaderModule;
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typedef struct Refresh_ComputePipeline Refresh_ComputePipeline;
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typedef struct Refresh_GraphicsPipeline Refresh_GraphicsPipeline;
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typedef struct Refresh_CommandBuffer Refresh_CommandBuffer;
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typedef struct Refresh_Fence Refresh_Fence;
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typedef enum Refresh_PresentMode
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{
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@ -786,13 +785,8 @@ REFRESHAPI void Refresh_SetTextureData(
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* yHeight: The height of the Y plane.
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* uvWidth: The width of the U/V planes.
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* uvHeight: The height of the U/V planes.
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* yData: A pointer to the raw Y image data.
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* uData: A pointer to the raw U image data.
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* vData: A pointer to the raw V image data.
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* yDataLength: The size of the Y image data in bytes.
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* uvDataLength: The size of the UV image data in bytes.
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* yStride: The length of a Y image data row in bytes.
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* uvStride: The length of a UV image data row in bytes.
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* data: A pointer to the raw YUV image data.
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* dataLength: The size of the image data in bytes.
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*/
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REFRESHAPI void Refresh_SetTextureDataYUV(
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Refresh_Device *driverData,
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@ -804,13 +798,8 @@ REFRESHAPI void Refresh_SetTextureDataYUV(
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uint32_t yHeight,
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uint32_t uvWidth,
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uint32_t uvHeight,
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void *yDataPtr,
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void *uDataPtr,
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void *vDataPtr,
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uint32_t yDataLength,
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uint32_t uvDataLength,
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uint32_t yStride,
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uint32_t uvStride
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void* data,
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uint32_t dataLength
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);
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/* Performs an asynchronous texture-to-texture copy.
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@ -1207,50 +1196,15 @@ REFRESHAPI Refresh_Texture* Refresh_AcquireSwapchainTexture(
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/* Submits all of the enqueued commands. */
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REFRESHAPI void Refresh_Submit(
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Refresh_Device* device,
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Refresh_CommandBuffer *commandBuffer
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uint32_t commandBufferCount,
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Refresh_CommandBuffer **pCommandBuffers
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);
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/* Submits a command buffer and acquires a fence.
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* You can use the fence to check if or wait until the command buffer has finished processing.
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* You are responsible for releasing this fence when you are done using it.
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*/
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REFRESHAPI Refresh_Fence* Refresh_SubmitAndAcquireFence(
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Refresh_Device* device,
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Refresh_CommandBuffer *commandBuffer
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);
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/* Waits for the device to become idle. */
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/* Waits for all submissions to complete. */
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REFRESHAPI void Refresh_Wait(
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Refresh_Device *device
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);
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/* Waits for given fences to be signaled.
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*
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* waitAll: If 0, waits for any fence to be signaled. If 1, waits for all fences to be signaled.
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* fenceCount: The number of fences being submitted.
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* pFences: An array of fences to be waited on.
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*/
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REFRESHAPI void Refresh_WaitForFences(
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Refresh_Device *device,
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uint8_t waitAll,
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uint32_t fenceCount,
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Refresh_Fence **pFences
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);
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/* Check the status of a fence. 1 means the fence is signaled. */
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REFRESHAPI int Refresh_QueryFence(
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Refresh_Device *device,
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Refresh_Fence *fence
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);
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/* Allows the fence to be reused by future command buffer submissions.
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* If you do not release fences after acquiring them, you will cause unbounded resource growth.
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*/
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REFRESHAPI void Refresh_ReleaseFence(
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Refresh_Device *device,
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Refresh_Fence *fence
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);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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@ -44,45 +44,115 @@
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extern "C" {
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#endif /* __cplusplus */
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/* Image Read API */
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/* Decodes image data into raw RGBA8 texture data.
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/* Decodes PNG data into raw RGBA8 texture data.
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*
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* w: Filled with the width of the image.
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* h: Filled with the height of the image.
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* len: Filled with the length of pixel data in bytes.
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* numChannels: Filled with the number of channels in the image.
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*
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* Returns a block of memory suitable for use with Refresh_SetTextureData2D.
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* Be sure to free the memory with Refresh_Image_Free after use!
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* Be sure to free the memory with Refresh_Image_FreePNG after use!
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*/
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REFRESHAPI uint8_t* Refresh_Image_Load(
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uint8_t *bufferPtr,
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REFRESHAPI uint8_t* Refresh_Image_LoadPNGFromFile(
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char const *filename,
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int32_t *w,
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int32_t *h,
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int32_t *numChannels
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);
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/* Decodes PNG data into raw RGBA8 texture data.
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*
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* w: Filled with the width of the image.
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* h: Filled with the height of the image.
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* numChannels: Filled with the number of channels in the image.
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*
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* Returns a block of memory suitable for use with Refresh_SetTextureData2D.
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* Be sure to free the memory with Refresh_Image_FreePNG after use!
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*/
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REFRESHAPI uint8_t* Refresh_Image_LoadPNGFromMemory(
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uint8_t *buffer,
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int32_t bufferLength,
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int32_t *w,
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int32_t *h,
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int32_t *len
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int32_t *numChannels
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);
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/* Frees memory returned by Refresh_Image_Load. Do NOT free the memory yourself!
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/* Frees memory returned by Refresh_Image_LoadPNG functions. (Do NOT free the memory yourself!)
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*
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* mem: A pointer previously returned by Refresh_Image_LoadPNG.
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*/
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REFRESHAPI void Refresh_Image_Free(uint8_t *mem);
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REFRESHAPI void Refresh_Image_FreePNG(uint8_t *mem);
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/* Decodes QOI data into raw RGBA8 texture data.
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*
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* w: Filled with the width of the image.
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* h: Filled with the height of the image.
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* numChannels: Filled with the number of channels in the image.
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*
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* Returns a block of memory suitable for use with Refresh_SetTextureData2D.
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* Be sure to free the memory with Refresh_Image_FreeQOI after use!
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*/
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REFRESHAPI uint8_t* Refresh_Image_LoadQOIFromFile(
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char const *filename,
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int32_t *w,
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int32_t *h,
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int32_t *numChannels
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);
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/* Decodes QOI data into raw RGBA8 texture data.
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*
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* bufferLength: The length of the input buffer to be decoded.
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* w: Filled with the width of the image.
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* h: Filled with the height of the image.
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* numChannels: Filled with the number of channels in the image.
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*
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* Returns a block of memory suitable for use with Refresh_SetTextureData2D.
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* Be sure to free the memory with Refresh_Image_FreeQOI after use!
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*/
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REFRESHAPI uint8_t* Refresh_Image_LoadQOIFromMemory(
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uint8_t *buffer,
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int32_t bufferLength,
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int32_t *w,
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int32_t *h,
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int32_t *numChannels
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);
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/* Frees memory returned by Refresh_Image_LoadQOI functions. (Do NOT free the memory yourself!)
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*
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* mem: A pointer previously returned by Refresh_Image_LoadQOI.
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*/
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REFRESHAPI void Refresh_Image_FreeQOI(uint8_t *mem);
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/* Image Write API */
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/* Returns a buffer of PNG encoded from RGBA8 color data.
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/* Encodes 32-bit color data into PNG data.
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*
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* filename: The filename that the image will be written to.
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* w: The width of the PNG data.
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* h: The height of the PNG data.
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* bgra: Whether the data is in BGRA8 format. Otherwise will assume RBGA8.
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* data: The raw color data.
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* w: The width of the color data.
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* h: The height of the color data.
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* len: Filled with the length of PNG data in bytes.
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*/
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REFRESHAPI void Refresh_Image_SavePNG(
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const char* filename,
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uint8_t* data,
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char const *filename,
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int32_t w,
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int32_t h
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int32_t h,
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uint8_t bgra,
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uint8_t *data
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);
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/* Encodes 32-bit color data into PNG data.
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*
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* filename: The filename that the image will be written to.
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* w: The width of the PNG data.
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* h: The height of the PNG data.
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* data: The raw color data.
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*/
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REFRESHAPI void Refresh_Image_SaveQOI(
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char const *filename,
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int32_t w,
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int32_t h,
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uint8_t *data
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);
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#ifdef __cplusplus
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@ -238,7 +238,7 @@ partial class Program
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{
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Process glslc = Process.Start(
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"glslc",
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$"\"{glslPath}\" -o \"{outputPath}\""
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$"{glslPath} -o {outputPath}"
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);
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glslc.WaitForExit();
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if (glslc.ExitCode != 0)
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@ -254,7 +254,7 @@ partial class Program
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{
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Process spirvcross = Process.Start(
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"spirv-cross",
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$"\"{spirvPath}\" --hlsl --shader-model 50 --output \"{outputPath}\""
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$"{spirvPath} --hlsl --shader-model 50 --output {outputPath}"
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);
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spirvcross.WaitForExit();
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if (spirvcross.ExitCode != 0)
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|
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@ -438,13 +438,8 @@ void Refresh_SetTextureDataYUV(
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uint32_t yHeight,
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uint32_t uvWidth,
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uint32_t uvHeight,
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void *yDataPtr,
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void *uDataPtr,
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void *vDataPtr,
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uint32_t yDataLength,
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uint32_t uvDataLength,
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uint32_t yStride,
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uint32_t uvStride
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void* data,
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uint32_t dataLength
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) {
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NULL_RETURN(device);
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device->SetTextureDataYUV(
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@ -457,13 +452,8 @@ void Refresh_SetTextureDataYUV(
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yHeight,
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uvWidth,
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uvHeight,
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yDataPtr,
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uDataPtr,
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vDataPtr,
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yDataLength,
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uvDataLength,
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yStride,
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uvStride
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data,
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dataLength
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);
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}
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@ -892,23 +882,14 @@ void Refresh_SetSwapchainPresentMode(
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void Refresh_Submit(
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Refresh_Device *device,
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Refresh_CommandBuffer *commandBuffer
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uint32_t commandBufferCount,
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Refresh_CommandBuffer **pCommandBuffers
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) {
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NULL_RETURN(device);
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device->Submit(
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device->driverData,
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commandBuffer
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);
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}
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Refresh_Fence* Refresh_SubmitAndAcquireFence(
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Refresh_Device *device,
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Refresh_CommandBuffer *commandBuffer
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) {
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NULL_RETURN_NULL(device);
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return device->SubmitAndAcquireFence(
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device->driverData,
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commandBuffer
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commandBufferCount,
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pCommandBuffers
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);
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}
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@ -921,44 +902,4 @@ void Refresh_Wait(
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);
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}
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void Refresh_WaitForFences(
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Refresh_Device *device,
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uint8_t waitAll,
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uint32_t fenceCount,
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Refresh_Fence **pFences
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) {
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NULL_RETURN(device);
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device->WaitForFences(
|
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device->driverData,
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waitAll,
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fenceCount,
|
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pFences
|
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);
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}
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|
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int Refresh_QueryFence(
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Refresh_Device *device,
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Refresh_Fence *fence
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) {
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if (device == NULL) {
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return 0;
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}
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return device->QueryFence(
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device->driverData,
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fence
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);
|
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}
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|
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void Refresh_ReleaseFence(
|
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Refresh_Device *device,
|
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Refresh_Fence *fence
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) {
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NULL_RETURN(device);
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device->ReleaseFence(
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device->driverData,
|
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fence
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);
|
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}
|
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/* vim: set noexpandtab shiftwidth=8 tabstop=8: */
|
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|
|
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|
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@ -286,13 +286,8 @@ struct Refresh_Device
|
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uint32_t yHeight,
|
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uint32_t uvWidth,
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uint32_t uvHeight,
|
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void *yDataPtr,
|
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void *uDataPtr,
|
||||
void *vDataPtr,
|
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uint32_t yDataLength,
|
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uint32_t uvDataLength,
|
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uint32_t yStride,
|
||||
uint32_t uvStride
|
||||
void* data,
|
||||
uint32_t dataLength
|
||||
);
|
||||
|
||||
void(*CopyTextureToTexture)(
|
||||
|
|
@ -499,35 +494,14 @@ struct Refresh_Device
|
|||
|
||||
void(*Submit)(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer
|
||||
);
|
||||
|
||||
Refresh_Fence* (*SubmitAndAcquireFence)(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer
|
||||
uint32_t commandBufferCount,
|
||||
Refresh_CommandBuffer **pCommandBuffers
|
||||
);
|
||||
|
||||
void(*Wait)(
|
||||
Refresh_Renderer *driverData
|
||||
);
|
||||
|
||||
void (*WaitForFences)(
|
||||
Refresh_Renderer *driverData,
|
||||
uint8_t waitAll,
|
||||
uint32_t fenceCount,
|
||||
Refresh_Fence **pFences
|
||||
);
|
||||
|
||||
int (*QueryFence)(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_Fence *fence
|
||||
);
|
||||
|
||||
void (*ReleaseFence)(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_Fence *fence
|
||||
);
|
||||
|
||||
/* Opaque pointer for the Driver */
|
||||
Refresh_Renderer *driverData;
|
||||
};
|
||||
|
|
@ -581,11 +555,7 @@ struct Refresh_Device
|
|||
ASSIGN_DRIVER_FUNC(GetSwapchainFormat, name) \
|
||||
ASSIGN_DRIVER_FUNC(SetSwapchainPresentMode, name) \
|
||||
ASSIGN_DRIVER_FUNC(Submit, name) \
|
||||
ASSIGN_DRIVER_FUNC(SubmitAndAcquireFence, name) \
|
||||
ASSIGN_DRIVER_FUNC(Wait, name) \
|
||||
ASSIGN_DRIVER_FUNC(WaitForFences, name) \
|
||||
ASSIGN_DRIVER_FUNC(QueryFence, name) \
|
||||
ASSIGN_DRIVER_FUNC(ReleaseFence, name)
|
||||
ASSIGN_DRIVER_FUNC(Wait, name)
|
||||
|
||||
typedef struct Refresh_Driver
|
||||
{
|
||||
|
|
|
|||
|
|
@ -268,19 +268,6 @@ static void TEMPLATE_DrawPrimitives(
|
|||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_DrawPrimitivesIndirect(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer,
|
||||
Refresh_Buffer *buffer,
|
||||
uint32_t offsetInBytes,
|
||||
uint32_t drawCount,
|
||||
uint32_t stride,
|
||||
uint32_t vertexParamOffset,
|
||||
uint32_t fragmentParamOffset
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_DispatchCompute(
|
||||
Refresh_Renderer *device,
|
||||
Refresh_CommandBuffer *commandBuffer,
|
||||
|
|
@ -360,13 +347,8 @@ static void TEMPLATE_SetTextureDataYUV(
|
|||
uint32_t yHeight,
|
||||
uint32_t uvWidth,
|
||||
uint32_t uvHeight,
|
||||
void *yDataPtr,
|
||||
void *uDataPtr,
|
||||
void *vDataPtr,
|
||||
uint32_t yDataLength,
|
||||
uint32_t uvDataLength,
|
||||
uint32_t yStride,
|
||||
uint32_t uvStride
|
||||
void* data,
|
||||
uint32_t dataLength
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
|
@ -503,15 +485,10 @@ static void TEMPLATE_QueueDestroyGraphicsPipeline(
|
|||
|
||||
/* Graphics State */
|
||||
|
||||
static Refresh_CommandBuffer* TEMPLATE_AcquireCommandBuffer(
|
||||
Refresh_Renderer *driverData
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_BeginRenderPass(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer,
|
||||
Refresh_Rect *renderArea,
|
||||
Refresh_ColorAttachmentInfo *colorAttachmentInfos,
|
||||
uint32_t colorAttachmentCount,
|
||||
Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo
|
||||
|
|
@ -571,8 +548,6 @@ static void TEMPLATE_BindIndexBuffer(
|
|||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
/* Compute State */
|
||||
|
||||
static void TEMPLATE_BindComputePipeline(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer,
|
||||
|
|
@ -597,24 +572,14 @@ static void TEMPLATE_BindComputeTextures(
|
|||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
/* Window and Swapchain Management */
|
||||
|
||||
static uint8_t TEMPLATE_ClaimWindow(
|
||||
static Refresh_CommandBuffer* TEMPLATE_AcquireCommandBuffer(
|
||||
Refresh_Renderer *driverData,
|
||||
void *windowHandle,
|
||||
Refresh_PresentMode presentMode
|
||||
uint8_t fixed
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_UnclaimWindow(
|
||||
Refresh_Renderer *driverData,
|
||||
void *windowHandle
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static Refresh_Texture* TEMPLATE_AcquireSwapchainTexture(
|
||||
Refresh_Texture* TEMPLATE_AcquireSwapchainTexture(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer,
|
||||
void *windowHandle,
|
||||
|
|
@ -624,33 +589,17 @@ static Refresh_Texture* TEMPLATE_AcquireSwapchainTexture(
|
|||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static Refresh_TextureFormat TEMPLATE_GetSwapchainFormat(
|
||||
Refresh_TextureFormat TEMPLATE_GetSwapchainFormat(
|
||||
Refresh_Renderer *driverData,
|
||||
void *windowHandle
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_SetSwapchainPresentMode(
|
||||
Refresh_Renderer *driverData,
|
||||
void *windowHandle,
|
||||
Refresh_PresentMode presentMode
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
/* Submission and Fences */
|
||||
|
||||
static void TEMPLATE_Submit(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static Refresh_Fence* TEMPLATE_SubmitAndAcquireFence(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_CommandBuffer *commandBuffer
|
||||
uint32_t commandBufferCount,
|
||||
Refresh_CommandBuffer **pCommandBuffers
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
|
@ -661,38 +610,8 @@ static void TEMPLATE_Wait(
|
|||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_WaitForFences(
|
||||
Refresh_Renderer *driverData,
|
||||
uint8_t waitAll,
|
||||
uint32_t fenceCount,
|
||||
Refresh_Fence **pFences
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static int TEMPLATE_QueryFence(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_Fence *fence
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static void TEMPLATE_ReleaseFence(
|
||||
Refresh_Renderer *driverData,
|
||||
Refresh_Fence *fence
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
/* Device Creation */
|
||||
|
||||
static uint8_t TEMPLATE_PrepareDriver(
|
||||
uint32_t *flags
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
}
|
||||
|
||||
static Refresh_Device* TEMPLATE_CreateDevice(
|
||||
Refresh_PresentationParameters *presentationParameters,
|
||||
uint8_t debugMode
|
||||
) {
|
||||
NOT_IMPLEMENTED
|
||||
|
|
@ -700,7 +619,6 @@ static Refresh_Device* TEMPLATE_CreateDevice(
|
|||
|
||||
Refresh_Driver TEMPLATEDriver = {
|
||||
"TEMPLATE",
|
||||
TEMPLATE_PrepareDriver,
|
||||
TEMPLATE_CreateDevice
|
||||
};
|
||||
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -89,7 +89,6 @@ VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdClearDepthStencilImage, (VkCommandBuff
|
|||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdCopyBuffer, (VkCommandBuffer commandBuffer, VkBuffer srcBuffer, VkBuffer dstBuffer, uint32_t regionCount, const VkBufferCopy* pRegions))
|
||||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdCopyBufferToImage, (VkCommandBuffer commandBuffer, VkBuffer srcBuffer, VkImage dstImage, VkImageLayout dstImageLayout, uint32_t regionCount, const VkBufferImageCopy *pRegions))
|
||||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdCopyImageToBuffer, (VkCommandBuffer commandBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkBuffer dstBuffer, uint32_t regionCount, const VkBufferImageCopy *pRegions))
|
||||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdCopyImage, (VkCommandBuffer commandBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage dstImage, VkImageLayout dstImageLayout, uint32_t regionCount, const VkImageCopy* pRegions))
|
||||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdDispatch, (VkCommandBuffer commandBuffer, uint32_t groupCountX, uint32_t groupCountY, uint32_t groupCountZ))
|
||||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdDraw, (VkCommandBuffer commandBuffer, uint32_t vertexCount, uint32_t instanceCount, uint32_t firstVertex, uint32_t firstInstance))
|
||||
VULKAN_DEVICE_FUNCTION(BaseVK, void, vkCmdDrawIndexed, (VkCommandBuffer commandBuffer, uint32_t indexCount, uint32_t instanceCount, uint32_t firstIndex, int32_t vertexOffset, uint32_t firstInstance))
|
||||
|
|
|
|||
|
|
@ -76,7 +76,6 @@
|
|||
|
||||
/* These are per the Texture2D.FromStream spec */
|
||||
#define STBI_ONLY_PNG
|
||||
#define STBI_ONLY_QOI
|
||||
|
||||
/* These are per the Texture2D.SaveAs* spec */
|
||||
#define STBIW_ONLY_PNG
|
||||
|
|
@ -147,6 +146,12 @@ SDL_SIMDRealloc(void *mem, const size_t len)
|
|||
#endif
|
||||
#include "stb_image.h"
|
||||
|
||||
#define QOI_IMPLEMENTATION
|
||||
#define QOI_MALLOC SDL_SIMDAlloc
|
||||
#define QOI_FREE SDL_SIMDFree
|
||||
#define QOI_ZEROARR SDL_zero
|
||||
#include "qoi.h"
|
||||
|
||||
#define MINIZ_NO_STDIO
|
||||
#define MINIZ_NO_TIME
|
||||
#define MINIZ_SDL_MALLOC
|
||||
|
|
@ -186,73 +191,110 @@ static unsigned char* dgibson_stbi_zlib_compress(
|
|||
|
||||
/* Image Read API */
|
||||
|
||||
uint8_t* Refresh_Image_Load(
|
||||
uint8_t *bufferPtr,
|
||||
uint8_t* Refresh_Image_LoadPNGFromFile(
|
||||
char const *filename,
|
||||
int32_t *w,
|
||||
int32_t *h,
|
||||
int32_t *numChannels
|
||||
) {
|
||||
return stbi_load(filename, w, h, numChannels, STBI_rgb_alpha);
|
||||
}
|
||||
|
||||
uint8_t* Refresh_Image_LoadPNGFromMemory(
|
||||
uint8_t *buffer,
|
||||
int32_t bufferLength,
|
||||
int32_t *w,
|
||||
int32_t *h,
|
||||
int32_t *len
|
||||
int32_t *numChannels
|
||||
) {
|
||||
uint8_t* result;
|
||||
uint8_t* pixels;
|
||||
int32_t format;
|
||||
int32_t i;
|
||||
|
||||
result = stbi_load_from_memory(
|
||||
bufferPtr,
|
||||
bufferLength,
|
||||
w,
|
||||
h,
|
||||
&format,
|
||||
STBI_rgb_alpha
|
||||
);
|
||||
|
||||
if (result == NULL)
|
||||
{
|
||||
SDL_LogWarn(SDL_LOG_CATEGORY_ERROR, "Image loading failed: %s", stbi_failure_reason());
|
||||
return stbi_load_from_memory(buffer, bufferLength, w, h, numChannels, STBI_rgb_alpha);
|
||||
}
|
||||
|
||||
/* Ensure that the alpha pixels are... well, actual alpha.
|
||||
* You think this looks stupid, but be assured: Your paint program is
|
||||
* almost certainly even stupider.
|
||||
* -flibit
|
||||
*/
|
||||
pixels = result;
|
||||
*len = (*w) * (*h) *4;
|
||||
for (i = 0; i < *len; i += 4, pixels += 4)
|
||||
void Refresh_Image_FreePNG(uint8_t *mem)
|
||||
{
|
||||
if (pixels[3] == 0)
|
||||
{
|
||||
pixels[0] = 0;
|
||||
pixels[1] = 1;
|
||||
pixels[2] = 2;
|
||||
}
|
||||
stbi_image_free(mem);
|
||||
}
|
||||
|
||||
return result;
|
||||
uint8_t *Refresh_Image_LoadQOIFromFile(
|
||||
char const *filename,
|
||||
int32_t *w,
|
||||
int32_t *h,
|
||||
int32_t *numChannels
|
||||
) {
|
||||
qoi_desc desc;
|
||||
uint8_t *pixels = qoi_read(filename, &desc, 0);
|
||||
*w = desc.width;
|
||||
*h = desc.height;
|
||||
*numChannels = desc.channels;
|
||||
return pixels;
|
||||
}
|
||||
|
||||
void Refresh_Image_Free(uint8_t *mem)
|
||||
uint8_t* Refresh_Image_LoadQOIFromMemory(
|
||||
uint8_t *buffer,
|
||||
int32_t bufferLength,
|
||||
int32_t *w,
|
||||
int32_t *h,
|
||||
int32_t *numChannels
|
||||
) {
|
||||
qoi_desc desc;
|
||||
uint8_t *pixels = qoi_decode(buffer, bufferLength, &desc, 0);
|
||||
*w = desc.width;
|
||||
*h = desc.height;
|
||||
*numChannels = desc.channels;
|
||||
return pixels;
|
||||
}
|
||||
|
||||
void Refresh_Image_FreeQOI(uint8_t *mem)
|
||||
{
|
||||
SDL_SIMDFree(mem);
|
||||
QOI_FREE(mem);
|
||||
}
|
||||
|
||||
/* Image Write API */
|
||||
|
||||
void Refresh_Image_SavePNG(
|
||||
const char *filename,
|
||||
uint8_t* data,
|
||||
int32_t w,
|
||||
int32_t h
|
||||
int32_t h,
|
||||
uint8_t bgra,
|
||||
uint8_t *data
|
||||
) {
|
||||
stbi_write_png(
|
||||
filename,
|
||||
w,
|
||||
h,
|
||||
4,
|
||||
data,
|
||||
w * 4
|
||||
);
|
||||
uint32_t i;
|
||||
uint8_t *bgraData;
|
||||
|
||||
if (bgra)
|
||||
{
|
||||
bgraData = SDL_malloc(w * h * 4);
|
||||
|
||||
for (i = 0; i < w * h * 4; i += 4)
|
||||
{
|
||||
bgraData[i] = data[i + 2];
|
||||
bgraData[i + 1] = data[i + 1];
|
||||
bgraData[i + 2] = data[i];
|
||||
bgraData[i + 3] = data[i + 3];
|
||||
}
|
||||
|
||||
stbi_write_png(filename, w, h, 4, bgraData, w * 4);
|
||||
|
||||
SDL_free(bgraData);
|
||||
}
|
||||
else
|
||||
{
|
||||
stbi_write_png(filename, w, h, 4, data, w * 4);
|
||||
}
|
||||
}
|
||||
|
||||
void Refresh_Image_SaveQOI(
|
||||
char const *filename,
|
||||
int32_t w,
|
||||
int32_t h,
|
||||
uint8_t *data
|
||||
) {
|
||||
qoi_desc desc;
|
||||
desc.width = w;
|
||||
desc.height = h;
|
||||
desc.channels = 4;
|
||||
desc.colorspace = QOI_LINEAR;
|
||||
qoi_write(filename, data, &desc);
|
||||
}
|
||||
|
||||
/* vim: set noexpandtab shiftwidth=8 tabstop=8: */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,649 @@
|
|||
/*
|
||||
|
||||
Copyright (c) 2021, Dominic Szablewski - https://phoboslab.org
|
||||
SPDX-License-Identifier: MIT
|
||||
|
||||
|
||||
QOI - The "Quite OK Image" format for fast, lossless image compression
|
||||
|
||||
-- About
|
||||
|
||||
QOI encodes and decodes images in a lossless format. Compared to stb_image and
|
||||
stb_image_write QOI offers 20x-50x faster encoding, 3x-4x faster decoding and
|
||||
20% better compression.
|
||||
|
||||
|
||||
-- Synopsis
|
||||
|
||||
// Define `QOI_IMPLEMENTATION` in *one* C/C++ file before including this
|
||||
// library to create the implementation.
|
||||
|
||||
#define QOI_IMPLEMENTATION
|
||||
#include "qoi.h"
|
||||
|
||||
// Encode and store an RGBA buffer to the file system. The qoi_desc describes
|
||||
// the input pixel data.
|
||||
qoi_write("image_new.qoi", rgba_pixels, &(qoi_desc){
|
||||
.width = 1920,
|
||||
.height = 1080,
|
||||
.channels = 4,
|
||||
.colorspace = QOI_SRGB
|
||||
});
|
||||
|
||||
// Load and decode a QOI image from the file system into a 32bbp RGBA buffer.
|
||||
// The qoi_desc struct will be filled with the width, height, number of channels
|
||||
// and colorspace read from the file header.
|
||||
qoi_desc desc;
|
||||
void *rgba_pixels = qoi_read("image.qoi", &desc, 4);
|
||||
|
||||
|
||||
|
||||
-- Documentation
|
||||
|
||||
This library provides the following functions;
|
||||
- qoi_read -- read and decode a QOI file
|
||||
- qoi_decode -- decode the raw bytes of a QOI image from memory
|
||||
- qoi_write -- encode and write a QOI file
|
||||
- qoi_encode -- encode an rgba buffer into a QOI image in memory
|
||||
|
||||
See the function declaration below for the signature and more information.
|
||||
|
||||
If you don't want/need the qoi_read and qoi_write functions, you can define
|
||||
QOI_NO_STDIO before including this library.
|
||||
|
||||
This library uses malloc() and free(). To supply your own malloc implementation
|
||||
you can define QOI_MALLOC and QOI_FREE before including this library.
|
||||
|
||||
This library uses memset() to zero-initialize the index. To supply your own
|
||||
implementation you can define QOI_ZEROARR before including this library.
|
||||
|
||||
|
||||
-- Data Format
|
||||
|
||||
A QOI file has a 14 byte header, followed by any number of data "chunks" and an
|
||||
8-byte end marker.
|
||||
|
||||
struct qoi_header_t {
|
||||
char magic[4]; // magic bytes "qoif"
|
||||
uint32_t width; // image width in pixels (BE)
|
||||
uint32_t height; // image height in pixels (BE)
|
||||
uint8_t channels; // 3 = RGB, 4 = RGBA
|
||||
uint8_t colorspace; // 0 = sRGB with linear alpha, 1 = all channels linear
|
||||
};
|
||||
|
||||
Images are encoded row by row, left to right, top to bottom. The decoder and
|
||||
encoder start with {r: 0, g: 0, b: 0, a: 255} as the previous pixel value. An
|
||||
image is complete when all pixels specified by width * height have been covered.
|
||||
|
||||
Pixels are encoded as
|
||||
- a run of the previous pixel
|
||||
- an index into an array of previously seen pixels
|
||||
- a difference to the previous pixel value in r,g,b
|
||||
- full r,g,b or r,g,b,a values
|
||||
|
||||
The color channels are assumed to not be premultiplied with the alpha channel
|
||||
("un-premultiplied alpha").
|
||||
|
||||
A running array[64] (zero-initialized) of previously seen pixel values is
|
||||
maintained by the encoder and decoder. Each pixel that is seen by the encoder
|
||||
and decoder is put into this array at the position formed by a hash function of
|
||||
the color value. In the encoder, if the pixel value at the index matches the
|
||||
current pixel, this index position is written to the stream as QOI_OP_INDEX.
|
||||
The hash function for the index is:
|
||||
|
||||
index_position = (r * 3 + g * 5 + b * 7 + a * 11) % 64
|
||||
|
||||
Each chunk starts with a 2- or 8-bit tag, followed by a number of data bits. The
|
||||
bit length of chunks is divisible by 8 - i.e. all chunks are byte aligned. All
|
||||
values encoded in these data bits have the most significant bit on the left.
|
||||
|
||||
The 8-bit tags have precedence over the 2-bit tags. A decoder must check for the
|
||||
presence of an 8-bit tag first.
|
||||
|
||||
The byte stream's end is marked with 7 0x00 bytes followed a single 0x01 byte.
|
||||
|
||||
|
||||
The possible chunks are:
|
||||
|
||||
|
||||
.- QOI_OP_INDEX ----------.
|
||||
| Byte[0] |
|
||||
| 7 6 5 4 3 2 1 0 |
|
||||
|-------+-----------------|
|
||||
| 0 0 | index |
|
||||
`-------------------------`
|
||||
2-bit tag b00
|
||||
6-bit index into the color index array: 0..63
|
||||
|
||||
A valid encoder must not issue 2 or more consecutive QOI_OP_INDEX chunks to the
|
||||
same index. QOI_OP_RUN should be used instead.
|
||||
|
||||
|
||||
.- QOI_OP_DIFF -----------.
|
||||
| Byte[0] |
|
||||
| 7 6 5 4 3 2 1 0 |
|
||||
|-------+-----+-----+-----|
|
||||
| 0 1 | dr | dg | db |
|
||||
`-------------------------`
|
||||
2-bit tag b01
|
||||
2-bit red channel difference from the previous pixel between -2..1
|
||||
2-bit green channel difference from the previous pixel between -2..1
|
||||
2-bit blue channel difference from the previous pixel between -2..1
|
||||
|
||||
The difference to the current channel values are using a wraparound operation,
|
||||
so "1 - 2" will result in 255, while "255 + 1" will result in 0.
|
||||
|
||||
Values are stored as unsigned integers with a bias of 2. E.g. -2 is stored as
|
||||
0 (b00). 1 is stored as 3 (b11).
|
||||
|
||||
The alpha value remains unchanged from the previous pixel.
|
||||
|
||||
|
||||
.- QOI_OP_LUMA -------------------------------------.
|
||||
| Byte[0] | Byte[1] |
|
||||
| 7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0 |
|
||||
|-------+-----------------+-------------+-----------|
|
||||
| 1 0 | green diff | dr - dg | db - dg |
|
||||
`---------------------------------------------------`
|
||||
2-bit tag b10
|
||||
6-bit green channel difference from the previous pixel -32..31
|
||||
4-bit red channel difference minus green channel difference -8..7
|
||||
4-bit blue channel difference minus green channel difference -8..7
|
||||
|
||||
The green channel is used to indicate the general direction of change and is
|
||||
encoded in 6 bits. The red and blue channels (dr and db) base their diffs off
|
||||
of the green channel difference and are encoded in 4 bits. I.e.:
|
||||
dr_dg = (cur_px.r - prev_px.r) - (cur_px.g - prev_px.g)
|
||||
db_dg = (cur_px.b - prev_px.b) - (cur_px.g - prev_px.g)
|
||||
|
||||
The difference to the current channel values are using a wraparound operation,
|
||||
so "10 - 13" will result in 253, while "250 + 7" will result in 1.
|
||||
|
||||
Values are stored as unsigned integers with a bias of 32 for the green channel
|
||||
and a bias of 8 for the red and blue channel.
|
||||
|
||||
The alpha value remains unchanged from the previous pixel.
|
||||
|
||||
|
||||
.- QOI_OP_RUN ------------.
|
||||
| Byte[0] |
|
||||
| 7 6 5 4 3 2 1 0 |
|
||||
|-------+-----------------|
|
||||
| 1 1 | run |
|
||||
`-------------------------`
|
||||
2-bit tag b11
|
||||
6-bit run-length repeating the previous pixel: 1..62
|
||||
|
||||
The run-length is stored with a bias of -1. Note that the run-lengths 63 and 64
|
||||
(b111110 and b111111) are illegal as they are occupied by the QOI_OP_RGB and
|
||||
QOI_OP_RGBA tags.
|
||||
|
||||
|
||||
.- QOI_OP_RGB ------------------------------------------.
|
||||
| Byte[0] | Byte[1] | Byte[2] | Byte[3] |
|
||||
| 7 6 5 4 3 2 1 0 | 7 .. 0 | 7 .. 0 | 7 .. 0 |
|
||||
|-------------------------+---------+---------+---------|
|
||||
| 1 1 1 1 1 1 1 0 | red | green | blue |
|
||||
`-------------------------------------------------------`
|
||||
8-bit tag b11111110
|
||||
8-bit red channel value
|
||||
8-bit green channel value
|
||||
8-bit blue channel value
|
||||
|
||||
The alpha value remains unchanged from the previous pixel.
|
||||
|
||||
|
||||
.- QOI_OP_RGBA ---------------------------------------------------.
|
||||
| Byte[0] | Byte[1] | Byte[2] | Byte[3] | Byte[4] |
|
||||
| 7 6 5 4 3 2 1 0 | 7 .. 0 | 7 .. 0 | 7 .. 0 | 7 .. 0 |
|
||||
|-------------------------+---------+---------+---------+---------|
|
||||
| 1 1 1 1 1 1 1 1 | red | green | blue | alpha |
|
||||
`-----------------------------------------------------------------`
|
||||
8-bit tag b11111111
|
||||
8-bit red channel value
|
||||
8-bit green channel value
|
||||
8-bit blue channel value
|
||||
8-bit alpha channel value
|
||||
|
||||
*/
|
||||
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
Header - Public functions */
|
||||
|
||||
#ifndef QOI_H
|
||||
#define QOI_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* A pointer to a qoi_desc struct has to be supplied to all of qoi's functions.
|
||||
It describes either the input format (for qoi_write and qoi_encode), or is
|
||||
filled with the description read from the file header (for qoi_read and
|
||||
qoi_decode).
|
||||
|
||||
The colorspace in this qoi_desc is an enum where
|
||||
0 = sRGB, i.e. gamma scaled RGB channels and a linear alpha channel
|
||||
1 = all channels are linear
|
||||
You may use the constants QOI_SRGB or QOI_LINEAR. The colorspace is purely
|
||||
informative. It will be saved to the file header, but does not affect
|
||||
how chunks are en-/decoded. */
|
||||
|
||||
#define QOI_SRGB 0
|
||||
#define QOI_LINEAR 1
|
||||
|
||||
typedef struct {
|
||||
unsigned int width;
|
||||
unsigned int height;
|
||||
unsigned char channels;
|
||||
unsigned char colorspace;
|
||||
} qoi_desc;
|
||||
|
||||
#ifndef QOI_NO_STDIO
|
||||
|
||||
/* Encode raw RGB or RGBA pixels into a QOI image and write it to the file
|
||||
system. The qoi_desc struct must be filled with the image width, height,
|
||||
number of channels (3 = RGB, 4 = RGBA) and the colorspace.
|
||||
|
||||
The function returns 0 on failure (invalid parameters, or fopen or malloc
|
||||
failed) or the number of bytes written on success. */
|
||||
|
||||
int qoi_write(const char *filename, const void *data, const qoi_desc *desc);
|
||||
|
||||
|
||||
/* Read and decode a QOI image from the file system. If channels is 0, the
|
||||
number of channels from the file header is used. If channels is 3 or 4 the
|
||||
output format will be forced into this number of channels.
|
||||
|
||||
The function either returns NULL on failure (invalid data, or malloc or fopen
|
||||
failed) or a pointer to the decoded pixels. On success, the qoi_desc struct
|
||||
will be filled with the description from the file header.
|
||||
|
||||
The returned pixel data should be free()d after use. */
|
||||
|
||||
void *qoi_read(const char *filename, qoi_desc *desc, int channels);
|
||||
|
||||
#endif /* QOI_NO_STDIO */
|
||||
|
||||
|
||||
/* Encode raw RGB or RGBA pixels into a QOI image in memory.
|
||||
|
||||
The function either returns NULL on failure (invalid parameters or malloc
|
||||
failed) or a pointer to the encoded data on success. On success the out_len
|
||||
is set to the size in bytes of the encoded data.
|
||||
|
||||
The returned qoi data should be free()d after use. */
|
||||
|
||||
void *qoi_encode(const void *data, const qoi_desc *desc, int *out_len);
|
||||
|
||||
|
||||
/* Decode a QOI image from memory.
|
||||
|
||||
The function either returns NULL on failure (invalid parameters or malloc
|
||||
failed) or a pointer to the decoded pixels. On success, the qoi_desc struct
|
||||
is filled with the description from the file header.
|
||||
|
||||
The returned pixel data should be free()d after use. */
|
||||
|
||||
void *qoi_decode(const void *data, int size, qoi_desc *desc, int channels);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif /* QOI_H */
|
||||
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
Implementation */
|
||||
|
||||
#ifdef QOI_IMPLEMENTATION
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifndef QOI_MALLOC
|
||||
#define QOI_MALLOC(sz) malloc(sz)
|
||||
#define QOI_FREE(p) free(p)
|
||||
#endif
|
||||
#ifndef QOI_ZEROARR
|
||||
#define QOI_ZEROARR(a) memset((a),0,sizeof(a))
|
||||
#endif
|
||||
|
||||
#define QOI_OP_INDEX 0x00 /* 00xxxxxx */
|
||||
#define QOI_OP_DIFF 0x40 /* 01xxxxxx */
|
||||
#define QOI_OP_LUMA 0x80 /* 10xxxxxx */
|
||||
#define QOI_OP_RUN 0xc0 /* 11xxxxxx */
|
||||
#define QOI_OP_RGB 0xfe /* 11111110 */
|
||||
#define QOI_OP_RGBA 0xff /* 11111111 */
|
||||
|
||||
#define QOI_MASK_2 0xc0 /* 11000000 */
|
||||
|
||||
#define QOI_COLOR_HASH(C) (C.rgba.r*3 + C.rgba.g*5 + C.rgba.b*7 + C.rgba.a*11)
|
||||
#define QOI_MAGIC \
|
||||
(((unsigned int)'q') << 24 | ((unsigned int)'o') << 16 | \
|
||||
((unsigned int)'i') << 8 | ((unsigned int)'f'))
|
||||
#define QOI_HEADER_SIZE 14
|
||||
|
||||
/* 2GB is the max file size that this implementation can safely handle. We guard
|
||||
against anything larger than that, assuming the worst case with 5 bytes per
|
||||
pixel, rounded down to a nice clean value. 400 million pixels ought to be
|
||||
enough for anybody. */
|
||||
#define QOI_PIXELS_MAX ((unsigned int)400000000)
|
||||
|
||||
typedef union {
|
||||
struct { unsigned char r, g, b, a; } rgba;
|
||||
unsigned int v;
|
||||
} qoi_rgba_t;
|
||||
|
||||
static const unsigned char qoi_padding[8] = {0,0,0,0,0,0,0,1};
|
||||
|
||||
static void qoi_write_32(unsigned char *bytes, int *p, unsigned int v) {
|
||||
bytes[(*p)++] = (0xff000000 & v) >> 24;
|
||||
bytes[(*p)++] = (0x00ff0000 & v) >> 16;
|
||||
bytes[(*p)++] = (0x0000ff00 & v) >> 8;
|
||||
bytes[(*p)++] = (0x000000ff & v);
|
||||
}
|
||||
|
||||
static unsigned int qoi_read_32(const unsigned char *bytes, int *p) {
|
||||
unsigned int a = bytes[(*p)++];
|
||||
unsigned int b = bytes[(*p)++];
|
||||
unsigned int c = bytes[(*p)++];
|
||||
unsigned int d = bytes[(*p)++];
|
||||
return a << 24 | b << 16 | c << 8 | d;
|
||||
}
|
||||
|
||||
void *qoi_encode(const void *data, const qoi_desc *desc, int *out_len) {
|
||||
int i, max_size, p, run;
|
||||
int px_len, px_end, px_pos, channels;
|
||||
unsigned char *bytes;
|
||||
const unsigned char *pixels;
|
||||
qoi_rgba_t index[64];
|
||||
qoi_rgba_t px, px_prev;
|
||||
|
||||
if (
|
||||
data == NULL || out_len == NULL || desc == NULL ||
|
||||
desc->width == 0 || desc->height == 0 ||
|
||||
desc->channels < 3 || desc->channels > 4 ||
|
||||
desc->colorspace > 1 ||
|
||||
desc->height >= QOI_PIXELS_MAX / desc->width
|
||||
) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
max_size =
|
||||
desc->width * desc->height * (desc->channels + 1) +
|
||||
QOI_HEADER_SIZE + sizeof(qoi_padding);
|
||||
|
||||
p = 0;
|
||||
bytes = (unsigned char *) QOI_MALLOC(max_size);
|
||||
if (!bytes) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
qoi_write_32(bytes, &p, QOI_MAGIC);
|
||||
qoi_write_32(bytes, &p, desc->width);
|
||||
qoi_write_32(bytes, &p, desc->height);
|
||||
bytes[p++] = desc->channels;
|
||||
bytes[p++] = desc->colorspace;
|
||||
|
||||
|
||||
pixels = (const unsigned char *)data;
|
||||
|
||||
QOI_ZEROARR(index);
|
||||
|
||||
run = 0;
|
||||
px_prev.rgba.r = 0;
|
||||
px_prev.rgba.g = 0;
|
||||
px_prev.rgba.b = 0;
|
||||
px_prev.rgba.a = 255;
|
||||
px = px_prev;
|
||||
|
||||
px_len = desc->width * desc->height * desc->channels;
|
||||
px_end = px_len - desc->channels;
|
||||
channels = desc->channels;
|
||||
|
||||
for (px_pos = 0; px_pos < px_len; px_pos += channels) {
|
||||
px.rgba.r = pixels[px_pos + 0];
|
||||
px.rgba.g = pixels[px_pos + 1];
|
||||
px.rgba.b = pixels[px_pos + 2];
|
||||
|
||||
if (channels == 4) {
|
||||
px.rgba.a = pixels[px_pos + 3];
|
||||
}
|
||||
|
||||
if (px.v == px_prev.v) {
|
||||
run++;
|
||||
if (run == 62 || px_pos == px_end) {
|
||||
bytes[p++] = QOI_OP_RUN | (run - 1);
|
||||
run = 0;
|
||||
}
|
||||
}
|
||||
else {
|
||||
int index_pos;
|
||||
|
||||
if (run > 0) {
|
||||
bytes[p++] = QOI_OP_RUN | (run - 1);
|
||||
run = 0;
|
||||
}
|
||||
|
||||
index_pos = QOI_COLOR_HASH(px) % 64;
|
||||
|
||||
if (index[index_pos].v == px.v) {
|
||||
bytes[p++] = QOI_OP_INDEX | index_pos;
|
||||
}
|
||||
else {
|
||||
index[index_pos] = px;
|
||||
|
||||
if (px.rgba.a == px_prev.rgba.a) {
|
||||
signed char vr = px.rgba.r - px_prev.rgba.r;
|
||||
signed char vg = px.rgba.g - px_prev.rgba.g;
|
||||
signed char vb = px.rgba.b - px_prev.rgba.b;
|
||||
|
||||
signed char vg_r = vr - vg;
|
||||
signed char vg_b = vb - vg;
|
||||
|
||||
if (
|
||||
vr > -3 && vr < 2 &&
|
||||
vg > -3 && vg < 2 &&
|
||||
vb > -3 && vb < 2
|
||||
) {
|
||||
bytes[p++] = QOI_OP_DIFF | (vr + 2) << 4 | (vg + 2) << 2 | (vb + 2);
|
||||
}
|
||||
else if (
|
||||
vg_r > -9 && vg_r < 8 &&
|
||||
vg > -33 && vg < 32 &&
|
||||
vg_b > -9 && vg_b < 8
|
||||
) {
|
||||
bytes[p++] = QOI_OP_LUMA | (vg + 32);
|
||||
bytes[p++] = (vg_r + 8) << 4 | (vg_b + 8);
|
||||
}
|
||||
else {
|
||||
bytes[p++] = QOI_OP_RGB;
|
||||
bytes[p++] = px.rgba.r;
|
||||
bytes[p++] = px.rgba.g;
|
||||
bytes[p++] = px.rgba.b;
|
||||
}
|
||||
}
|
||||
else {
|
||||
bytes[p++] = QOI_OP_RGBA;
|
||||
bytes[p++] = px.rgba.r;
|
||||
bytes[p++] = px.rgba.g;
|
||||
bytes[p++] = px.rgba.b;
|
||||
bytes[p++] = px.rgba.a;
|
||||
}
|
||||
}
|
||||
}
|
||||
px_prev = px;
|
||||
}
|
||||
|
||||
for (i = 0; i < (int)sizeof(qoi_padding); i++) {
|
||||
bytes[p++] = qoi_padding[i];
|
||||
}
|
||||
|
||||
*out_len = p;
|
||||
return bytes;
|
||||
}
|
||||
|
||||
void *qoi_decode(const void *data, int size, qoi_desc *desc, int channels) {
|
||||
const unsigned char *bytes;
|
||||
unsigned int header_magic;
|
||||
unsigned char *pixels;
|
||||
qoi_rgba_t index[64];
|
||||
qoi_rgba_t px;
|
||||
int px_len, chunks_len, px_pos;
|
||||
int p = 0, run = 0;
|
||||
|
||||
if (
|
||||
data == NULL || desc == NULL ||
|
||||
(channels != 0 && channels != 3 && channels != 4) ||
|
||||
size < QOI_HEADER_SIZE + (int)sizeof(qoi_padding)
|
||||
) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
bytes = (const unsigned char *)data;
|
||||
|
||||
header_magic = qoi_read_32(bytes, &p);
|
||||
desc->width = qoi_read_32(bytes, &p);
|
||||
desc->height = qoi_read_32(bytes, &p);
|
||||
desc->channels = bytes[p++];
|
||||
desc->colorspace = bytes[p++];
|
||||
|
||||
if (
|
||||
desc->width == 0 || desc->height == 0 ||
|
||||
desc->channels < 3 || desc->channels > 4 ||
|
||||
desc->colorspace > 1 ||
|
||||
header_magic != QOI_MAGIC ||
|
||||
desc->height >= QOI_PIXELS_MAX / desc->width
|
||||
) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (channels == 0) {
|
||||
channels = desc->channels;
|
||||
}
|
||||
|
||||
px_len = desc->width * desc->height * channels;
|
||||
pixels = (unsigned char *) QOI_MALLOC(px_len);
|
||||
if (!pixels) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
QOI_ZEROARR(index);
|
||||
px.rgba.r = 0;
|
||||
px.rgba.g = 0;
|
||||
px.rgba.b = 0;
|
||||
px.rgba.a = 255;
|
||||
|
||||
chunks_len = size - (int)sizeof(qoi_padding);
|
||||
for (px_pos = 0; px_pos < px_len; px_pos += channels) {
|
||||
if (run > 0) {
|
||||
run--;
|
||||
}
|
||||
else if (p < chunks_len) {
|
||||
int b1 = bytes[p++];
|
||||
|
||||
if (b1 == QOI_OP_RGB) {
|
||||
px.rgba.r = bytes[p++];
|
||||
px.rgba.g = bytes[p++];
|
||||
px.rgba.b = bytes[p++];
|
||||
}
|
||||
else if (b1 == QOI_OP_RGBA) {
|
||||
px.rgba.r = bytes[p++];
|
||||
px.rgba.g = bytes[p++];
|
||||
px.rgba.b = bytes[p++];
|
||||
px.rgba.a = bytes[p++];
|
||||
}
|
||||
else if ((b1 & QOI_MASK_2) == QOI_OP_INDEX) {
|
||||
px = index[b1];
|
||||
}
|
||||
else if ((b1 & QOI_MASK_2) == QOI_OP_DIFF) {
|
||||
px.rgba.r += ((b1 >> 4) & 0x03) - 2;
|
||||
px.rgba.g += ((b1 >> 2) & 0x03) - 2;
|
||||
px.rgba.b += ( b1 & 0x03) - 2;
|
||||
}
|
||||
else if ((b1 & QOI_MASK_2) == QOI_OP_LUMA) {
|
||||
int b2 = bytes[p++];
|
||||
int vg = (b1 & 0x3f) - 32;
|
||||
px.rgba.r += vg - 8 + ((b2 >> 4) & 0x0f);
|
||||
px.rgba.g += vg;
|
||||
px.rgba.b += vg - 8 + (b2 & 0x0f);
|
||||
}
|
||||
else if ((b1 & QOI_MASK_2) == QOI_OP_RUN) {
|
||||
run = (b1 & 0x3f);
|
||||
}
|
||||
|
||||
index[QOI_COLOR_HASH(px) % 64] = px;
|
||||
}
|
||||
|
||||
pixels[px_pos + 0] = px.rgba.r;
|
||||
pixels[px_pos + 1] = px.rgba.g;
|
||||
pixels[px_pos + 2] = px.rgba.b;
|
||||
|
||||
if (channels == 4) {
|
||||
pixels[px_pos + 3] = px.rgba.a;
|
||||
}
|
||||
}
|
||||
|
||||
return pixels;
|
||||
}
|
||||
|
||||
#ifndef QOI_NO_STDIO
|
||||
#include <stdio.h>
|
||||
|
||||
int qoi_write(const char *filename, const void *data, const qoi_desc *desc) {
|
||||
FILE *f = fopen(filename, "wb");
|
||||
int size;
|
||||
void *encoded;
|
||||
|
||||
if (!f) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
encoded = qoi_encode(data, desc, &size);
|
||||
if (!encoded) {
|
||||
fclose(f);
|
||||
return 0;
|
||||
}
|
||||
|
||||
fwrite(encoded, 1, size, f);
|
||||
fclose(f);
|
||||
|
||||
QOI_FREE(encoded);
|
||||
return size;
|
||||
}
|
||||
|
||||
void *qoi_read(const char *filename, qoi_desc *desc, int channels) {
|
||||
FILE *f = fopen(filename, "rb");
|
||||
int size, bytes_read;
|
||||
void *pixels, *data;
|
||||
|
||||
if (!f) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fseek(f, 0, SEEK_END);
|
||||
size = ftell(f);
|
||||
if (size <= 0) {
|
||||
fclose(f);
|
||||
return NULL;
|
||||
}
|
||||
fseek(f, 0, SEEK_SET);
|
||||
|
||||
data = QOI_MALLOC(size);
|
||||
if (!data) {
|
||||
fclose(f);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
bytes_read = fread(data, 1, size, f);
|
||||
fclose(f);
|
||||
|
||||
pixels = qoi_decode(data, bytes_read, desc, channels);
|
||||
QOI_FREE(data);
|
||||
return pixels;
|
||||
}
|
||||
|
||||
#endif /* QOI_NO_STDIO */
|
||||
#endif /* QOI_IMPLEMENTATION */
|
||||
590
src/stb_image.h
590
src/stb_image.h
File diff suppressed because it is too large
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Reference in New Issue