Added rudimentary SVG support. Added 2 functions ImageLoadSvg and ImageLoadSvgWithSize.

This commit is contained in:
Dennis Meinen 2022-10-02 22:03:39 +02:00
parent 62d228346b
commit 2a1305809f
4 changed files with 4602 additions and 0 deletions

3053
src/external/nanosvg.h vendored Normal file

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1458
src/external/nanosvgrast.h vendored Normal file

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@ -1226,6 +1226,8 @@ RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2);
// NOTE: This functions do not require GPU access // NOTE: This functions do not require GPU access
RLAPI Image LoadImage(const char *fileName); // Load image from file into CPU memory (RAM) RLAPI Image LoadImage(const char *fileName); // Load image from file into CPU memory (RAM)
RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize); // Load image from RAW file data RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize); // Load image from RAW file data
RLAPI Image LoadImageSvg(const char* fileName); // Load image from SVG file data with default size from SVG
RLAPI Image LoadImageSvgWithSize(const char* fileName, int width, int height); // Load image from SVG file data with specified size
RLAPI Image LoadImageAnim(const char *fileName, int *frames); // Load image sequence from file (frames appended to image.data) RLAPI Image LoadImageAnim(const char *fileName, int *frames); // Load image sequence from file (frames appended to image.data)
RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load image from memory buffer, fileType refers to extension: i.e. '.png' RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load image from memory buffer, fileType refers to extension: i.e. '.png'
RLAPI Image LoadImageFromTexture(Texture2D texture); // Load image from GPU texture data RLAPI Image LoadImageFromTexture(Texture2D texture); // Load image from GPU texture data

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@ -187,6 +187,13 @@
#include "external/stb_image_resize.h" // Required for: stbir_resize_uint8() [ImageResize()] #include "external/stb_image_resize.h" // Required for: stbir_resize_uint8() [ImageResize()]
#endif #endif
#define NANOSVG_IMPLEMENTATION // Expands implementation
#include "external/nanosvg.h"
#define NANOSVGRAST_IMPLEMENTATION
#include "external/nanosvgrast.h"
//---------------------------------------------------------------------------------- //----------------------------------------------------------------------------------
// Defines and Macros // Defines and Macros
//---------------------------------------------------------------------------------- //----------------------------------------------------------------------------------
@ -275,6 +282,88 @@ Image LoadImageRaw(const char *fileName, int width, int height, int format, int
return image; return image;
} }
// Load image from SVG file data with default size from SVG
Image LoadImageSvg(const char* fileName)
{
Image image = { 0 };
unsigned int dataSize = 0;
unsigned char* fileData = LoadFileData(fileName, &dataSize);
if (fileData != NULL)
{
struct NSVGimage* svgImage = nsvgParse(fileData, "px", 96.0f);
const int width = (int)svgImage->width;
const int height = (int)svgImage->height;
// Delete
nsvgDelete(svgImage);
return LoadImageSvgWithSize(fileName, width, height);
}
return image;
}
// Load an image from SVG file data with a custom size
Image LoadImageSvgWithSize(const char* fileName, int width, int height)
{
Image image = { 0 };
unsigned int dataSize = 0;
unsigned char* fileData = LoadFileData(fileName, &dataSize);
if (fileData != NULL)
{
struct NSVGimage* svgImage = nsvgParse(fileData, "px", 96.0f);
// Allocate memory for image
unsigned char* img = malloc(width * height * 4);
// Calculate scales for both the width and the height
const float scaleWidth = width / svgImage->width;
const float scaleHeight = height / svgImage->height;
// Set the largest of the 2 scales to be the scale to use
const float scale = (scaleHeight > scaleWidth) ? scaleWidth : scaleHeight;
int offsetX = 0;
int offsetY = 0;
if (scaleHeight > scaleWidth)
{
offsetY = (height - svgImage->height * scale) / 2;
}
else
{
offsetX = (width - svgImage->width * scale) / 2;
}
// Rasterize
struct NSVGrasterizer* rast = nsvgCreateRasterizer();
nsvgRasterize(rast, svgImage, (int)offsetX, (int)offsetY, scale, img, width, height, width * 4);
// Populate image struct with all data
image.data = img;
image.width = width;
image.height = height;
image.mipmaps = 1;
image.format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8;
// Delete
nsvgDelete(svgImage);
RL_FREE(fileData);
}
return image;
}
// Load animated image data // Load animated image data
// - Image.data buffer includes all frames: [image#0][image#1][image#2][...] // - Image.data buffer includes all frames: [image#0][image#1][image#2][...]
// - Number of frames is returned through 'frames' parameter // - Number of frames is returned through 'frames' parameter