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ADDED: LoadTextureCubemap()

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Probably uncomplete, not tested yet...
This commit is contained in:
Ray 2019-02-04 13:27:36 +01:00
commit fce48e85f4
1 changed files with 207 additions and 28 deletions
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86
src/textures.c
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@ -398,7 +398,92 @@ Texture2D LoadTextureFromImage(Image image)
return texture;
}
// Load cubemap from image, multiple image cubemap layouts supported
TextureCubemap LoadTextureCubemap(Image image, int layoutType)
{
TextureCubemap cubemap = { 0 };
if (layoutType == CUBEMAP_AUTO_DETECT) // Try to automatically guess layout type
{
// Check image width/height to determine the type of cubemap provided
if (image.width > image.height)
{
if ((image.width/6) == image.height) { layoutType = CUBEMAP_LINE_HORIZONTAL; cubemap.width = image.width/6; }
else if ((image.width/4) == (image.height/3)) { layoutType = CUBEMAP_CROSS_FOUR_BY_THREE; cubemap.width = image.width/4; }
else if (image.width >= (int)((float)image.height*1.85f)) { layoutType = CUBEMAP_PANORAMA; cubemap.width = image.width/4; }
}
else if (image.height > image.width)
{
if ((image.height/6) == image.width) { layoutType = CUBEMAP_LINE_VERTICAL; cubemap.width = image.height/6; }
else if ((image.width/3) == (image.height/4)) { layoutType = CUBEMAP_CROSS_THREE_BY_FOUR; cubemap.width = image.width/3; }
}
cubemap.height = cubemap.width;
}
int size = cubemap.width;
if (layoutType != CUBEMAP_AUTO_DETECT)
{
//unsigned int dataSize = GetPixelDataSize(size, size, format);
//void *facesData = malloc(size*size*dataSize*6); // Get memory for 6 faces in a column
Image faces = { 0 }; // Vertical column image
Rectangle faceRecs[6] = { 0 }; // Face source rectangles
for (int i = 0; i < 6; i++) faceRecs[i] = (Rectangle){ 0, 0, size, size };
if (layoutType == CUBEMAP_LINE_VERTICAL)
{
faces = image;
for (int i = 0; i < 6; i++) faceRecs[i].y = size*i;
}
else if (layoutType == CUBEMAP_PANORAMA)
{
// TODO: Convert panorama image to square faces...
}
else
{
if (layoutType == CUBEMAP_LINE_HORIZONTAL) for (int i = 0; i < 6; i++) faceRecs[i].x = size*i;
else if (layoutType == CUBEMAP_CROSS_THREE_BY_FOUR)
{
faceRecs[0].x = size; faceRecs[0].y = size;
faceRecs[1].x = size; faceRecs[1].y = 3*size;
faceRecs[2].x = size; faceRecs[2].y = 0;
faceRecs[3].x = size; faceRecs[3].y = 2*size;
faceRecs[4].x = 0; faceRecs[4].y = size;
faceRecs[5].x = 2*size; faceRecs[5].y = size;
}
else if (layoutType == CUBEMAP_CROSS_FOUR_BY_THREE)
{
faceRecs[0].x = 2*size; faceRecs[0].y = size;
faceRecs[1].x = 0; faceRecs[1].y = size;
faceRecs[2].x = size; faceRecs[2].y = 0;
faceRecs[3].x = size; faceRecs[3].y = 2*size;
faceRecs[4].x = size; faceRecs[4].y = size;
faceRecs[5].x = 3*size; faceRecs[5].y = size;
}
// Convert image data to 6 faces in a vertical column, that's the optimum layout for loading
faces = GenImageColor(size, size*6, MAGENTA);
ImageFormat(&faces, image.format);
// TODO: Image formating does not work with compressed textures!
}
for (int i = 0; i < 6; i++) ImageDraw(&faces, image, faceRecs[i], (Rectangle){ 0, size*i, size, size });
cubemap.id = rlLoadTextureCubemap(faces.data, size, faces.format);
if (cubemap.id == 0) TraceLog(LOG_WARNING, "Cubemap image could not be loaded.");
UnloadImage(faces);
}
else TraceLog(LOG_WARNING, "Cubemap image layout can not be detected.");
return cubemap;
}
// Load texture for rendering (framebuffer)
// NOTE: Render texture is loaded by default with RGBA color attachment and depth RenderBuffer
RenderTexture2D LoadRenderTexture(int width, int height)
{
RenderTexture2D target = rlLoadRenderTexture(width, height);
@ -1666,7 +1751,6 @@ Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Co
int index; // Index position in sprite font
unsigned char character; // Current character
// TODO: ISSUE: Measured text size does not seem to be correct... issue on ImageDraw()
Vector2 imSize = MeasureTextEx(font, text, (float)font.baseSize, spacing);
TraceLog(LOG_DEBUG, "Text Image size: %f, %f", imSize.x, imSize.y);