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rg_surface: Implemented rg_surface_fill

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This commit is contained in:
Alex Duchesne 2025-03-31 15:14:06 -04:00
parent da12453ac4
commit 4da7ac5d07
1 changed files with 42 additions and 1 deletions
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43
components/retro-go/rg_surface.c
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@ -57,6 +57,7 @@ rg_surface_t *rg_surface_create(int width, int height, int format, uint32_t allo
surface->width = width;
surface->height = height;
surface->stride = width * pixel_size;
// surface->pixlen = pixel_size;
surface->format = format;
if (data_size)
surface->data = (void *)surface + sizeof(rg_surface_t);
@ -220,7 +221,47 @@ rg_surface_t *rg_surface_convert(const rg_surface_t *source, int new_width, int
bool rg_surface_fill(rg_surface_t *dest, const rg_rect_t *rect, rg_color_t color)
{
CHECK_SURFACE(dest, false);
//
// rg_surface_t window;
// if (rect && create_window(dest, rect, &window))
// dest = &window;
uint8_t line_buffer[dest->width * RG_PIXEL_GET_SIZE(dest->format)];
uint8_t *data_ptr = dest->data + dest->offset;
if (dest->format == RG_PIXEL_565_LE)
{
uint16_t *ptr = (uint16_t *)line_buffer;
for (size_t x = 0; x < dest->width; ++x)
{
*ptr++ = color;
}
}
else if (dest->format == RG_PIXEL_565_BE)
{
uint16_t *ptr = (uint16_t *)line_buffer;
for (size_t x = 0; x < dest->width; ++x)
{
*ptr++ = (color << 8) | (color >> 8);
}
}
else if (dest->format == RG_PIXEL_888)
{
uint8_t *ptr = (uint8_t *)line_buffer;
for (size_t x = 0; x < dest->width; ++x)
{
*ptr++ = (color & 0xF800) >> 8;
*ptr++ = (color & 0x07E0) >> 1;
*ptr++ = (color & 0x001F) << 3;
}
}
for (size_t y = 0; y < dest->height; ++y)
{
memcpy(data_ptr, line_buffer, sizeof(line_buffer));
data_ptr += dest->stride;
}
return true;
}