mirror of https://github.com/nothings/stb.git
Get rid of "advanced" API with explicit temp memory because the STBR_MALLOC interface is sufficient
Sean Barrett
parent
259c92b550
commit
392585130c
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@ -63,25 +63,12 @@
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// s0, t0, s1, t1,
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// channels, premultiply_alpha_channel, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB);
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//
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//
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// Control over memory allocation is offered like so:
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//
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// size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, STBR_FILTER_CATMULLROM);
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// void* extra_memory = malloc(memory_required); // Any memory allocation method of your choosing
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// result = stbr_resize_advanced(input_data, input_w, input_h, input_stride_in_bytes,
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// output_data, output_w, output_h, output_stride_in_bytes,
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// s0, t0, s1, t1,
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// channels, premultiply_alpha_channel, STBR_TYPE_UINT8, STBR_FILTER_CATMULLROM, STBR_EDGE_CLAMP, STBR_COLORSPACE_SRGB,
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// extra_memory, memory_required);
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// free(extra_memory);
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//
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// * input_stride_in_bytes and output_stride_in_bytes can be 0. If so they will be automatically calculated as width * channels.
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// * s0, t0, s1, t1 are the top-left and bottom right corner (uv addressing style: [0, 1]x[0, 1]) of a region of the input image to use.
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// * premultiply_alpha_channel - if nonzero, the specified channel will be multiplied into all other channels before resampling, then divided back out after.
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// * Returned result is 1 for success or 0 in case of an error. In the case of an error an assert with be triggered, #define STBR_ASSERT() to see it.
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// * stbr_resize_advanced() will not allocate any memory, it will use the memory you pass in to do its work. Memory required grows
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// approximately linearly with input and output size, but with discontinuities at input_w == output_w and input_h == output_height.
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// stbr_calculate_memory() is deterministic on its inputs.
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// * Memory required grows approximately linearly with input and output size, but with discontinuities at input_w == output_w and input_h == output_height.
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// * To use temporary memory, define an STBR_MALLOC that returns the temp memory and make STBR_FREE do nothing--each function only ever allocates one block
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typedef enum
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@ -208,21 +195,6 @@ extern "C" {
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float s0, float t0, float s1, float t1,
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int channels, int premultiply_alpha_channel, stbr_type type, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace);
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//////////////////////////////////////////////////////////////////////////////
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//
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// ADVANCED API
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//
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STBRDEF stbr_size_t stbr_calculate_memory(int input_w, int input_h, int output_w, int output_h, float s0, float t0, float s1, float t1, int channels, stbr_filter filter);
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STBRDEF int stbr_resize_advanced(const void* input_data, int input_w, int input_h, int input_stride_in_bytes,
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void* output_data, int output_w, int output_h, int output_stride_in_bytes,
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float s0, float t0, float s1, float t1,
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int channels, int premultiply_alpha_channel, stbr_type type, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace,
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void* tempmem, stbr_size_t tempmem_size_in_bytes);
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#ifdef __cplusplus
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}
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#endif
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@ -349,7 +321,6 @@ typedef struct
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float* encode_buffer; // A temporary buffer to store floats so we don't lose precision while we do multiply-adds.
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} stbr__info;
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static stbr_inline int stbr__min(int a, int b)
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{
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return a < b ? a : b;
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@ -1362,7 +1333,9 @@ static void stbr__buffer_loop_downsample(stbr__info* stbr_info)
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stbr__empty_ring_buffer(stbr_info, stbr_info->output_h);
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}
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STBRDEF int stbr_resize_advanced(const void* input_data, int input_w, int input_h, int input_stride_in_bytes,
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static stbr_size_t stbr__calculate_memory(int input_w, int input_h, int output_w, int output_h, float s0, float t0, float s1, float t1, int channels, stbr_filter filter);
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static int stbr__resize_advanced(const void* input_data, int input_w, int input_h, int input_stride_in_bytes,
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void* output_data, int output_w, int output_h, int output_stride_in_bytes,
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float s0, float t0, float s1, float t1,
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int channels, int premul_alpha_channel, stbr_type type, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace,
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@ -1370,7 +1343,7 @@ STBRDEF int stbr_resize_advanced(const void* input_data, int input_w, int input_
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{
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stbr__info* stbr_info = (stbr__info*)tempmem;
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stbr_size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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stbr_size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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int width_stride_input = input_stride_in_bytes ? input_stride_in_bytes : channels * input_w * stbr__type_size[type];
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int width_stride_output = output_stride_in_bytes ? output_stride_in_bytes : channels * output_w * stbr__type_size[type];
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@ -1501,7 +1474,7 @@ STBRDEF int stbr_resize_advanced(const void* input_data, int input_w, int input_
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}
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STBRDEF stbr_size_t stbr_calculate_memory(int input_w, int input_h, int output_w, int output_h, float s0, float t0, float s1, float t1, int channels, stbr_filter filter)
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STBRDEF stbr_size_t stbr__calculate_memory(int input_w, int input_h, int output_w, int output_h, float s0, float t0, float s1, float t1, int channels, stbr_filter filter)
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{
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float horizontal_scale = ((float)output_w / input_w) / (s1 - s0);
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float vertical_scale = ((float)output_h / input_h) / (t1 - t0);
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@ -1539,13 +1512,13 @@ STBRDEF stbr_inline int stbr_resize_uint8_srgb(const stbr_uint8* input_data, int
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_UINT8, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_UINT8, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1557,13 +1530,13 @@ STBRDEF stbr_inline int stbr_resize_uint16_srgb(const stbr_uint16* input_data, i
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_UINT16, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_UINT16, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1575,13 +1548,13 @@ STBRDEF stbr_inline int stbr_resize_uint32_srgb(const stbr_uint32* input_data, i
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_UINT32, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_UINT32, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1593,13 +1566,13 @@ STBRDEF stbr_inline int stbr_resize_float_srgb(const float* input_data, int inpu
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_FLOAT, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, 0, STBR_TYPE_FLOAT, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1611,13 +1584,13 @@ STBRDEF stbr_inline int stbr_resize_uint8_premultiply(const stbr_uint8* input_da
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int channels, int premultiply_alpha_channel, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_UINT8, filter, edge, colorspace, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_UINT8, filter, edge, colorspace, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1629,13 +1602,13 @@ STBRDEF stbr_inline int stbr_resize_uint16_premultiply(const stbr_uint16* input_
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int channels, int premultiply_alpha_channel, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_UINT16, filter, edge, colorspace, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_UINT16, filter, edge, colorspace, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1647,13 +1620,13 @@ STBRDEF stbr_inline int stbr_resize_uint32_premultiply(const stbr_uint32* input_
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int channels, int premultiply_alpha_channel, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_UINT32, filter, edge, colorspace, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_UINT32, filter, edge, colorspace, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1665,13 +1638,13 @@ STBRDEF stbr_inline int stbr_resize_float_premultiply(const float* input_data, i
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int channels, int premultiply_alpha_channel, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, 0, 0, 1, 1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_FLOAT, filter, edge, colorspace, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, 0, 0, 1, 1, channels, premultiply_alpha_channel, STBR_TYPE_FLOAT, filter, edge, colorspace, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1684,13 +1657,13 @@ STBRDEF stbr_inline int stbr_resize_uint8_subpixel(const stbr_uint8* input_data,
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_UINT8, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_UINT8, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1703,13 +1676,13 @@ STBRDEF stbr_inline int stbr_resize_uint16_subpixel(const stbr_uint16* input_dat
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_UINT16, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_UINT16, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1722,13 +1695,13 @@ STBRDEF stbr_inline int stbr_resize_uint32_subpixel(const stbr_uint32* input_dat
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_UINT32, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_UINT32, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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STBR_FREE(extra_memory);
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@ -1741,13 +1714,13 @@ STBRDEF stbr_inline int stbr_resize_float_subpixel(const float* input_data, int
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int channels, stbr_filter filter, stbr_edge edge)
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{
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int result;
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size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
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void* extra_memory = STBR_MALLOC(memory_required);
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if (!extra_memory)
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return 0;
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result = stbr_resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_FLOAT, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
|
||||
result = stbr__resize_advanced(input_data, input_w, input_h, 0, output_data, output_w, output_h, 0, s0, t0, s1, t1, channels, 0, STBR_TYPE_FLOAT, filter, edge, STBR_COLORSPACE_SRGB, extra_memory, memory_required);
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||||
|
||||
STBR_FREE(extra_memory);
|
||||
|
||||
|
|
@ -1760,13 +1733,13 @@ STBRDEF int stbr_resize_arbitrary(const void* input_data, int input_w, int input
|
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int channels, int premultiply_alpha_channel, stbr_type type, stbr_filter filter, stbr_edge edge, stbr_colorspace colorspace)
|
||||
{
|
||||
int result;
|
||||
size_t memory_required = stbr_calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
|
||||
size_t memory_required = stbr__calculate_memory(input_w, input_h, output_w, output_h, s0, t0, s1, t1, channels, filter);
|
||||
void* extra_memory = STBR_MALLOC(memory_required);
|
||||
|
||||
if (!extra_memory)
|
||||
return 0;
|
||||
|
||||
result = stbr_resize_advanced(input_data, input_w, input_h, input_stride_in_bytes, output_data, output_w, output_h, output_stride_in_bytes, s0, t0, s1, t1, channels, premultiply_alpha_channel, type, filter, edge, colorspace, extra_memory, memory_required);
|
||||
result = stbr__resize_advanced(input_data, input_w, input_h, input_stride_in_bytes, output_data, output_w, output_h, output_stride_in_bytes, s0, t0, s1, t1, channels, premultiply_alpha_channel, type, filter, edge, colorspace, extra_memory, memory_required);
|
||||
|
||||
STBR_FREE(extra_memory);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue