Re: [PATCH libdrm 19/25] tests: tegra: Add VIC 3.0 support

On Fri, Aug 27, 2021 at 03:22:59PM +0200, Thierry Reding wrote:

From: Thierry Reding treding@nvidia.com

The Video Image Composer (VIC) 3.0 can be found on NVIDIA Tegra124 SoCs.a

[...]

+static int vic30_clear(struct vic *v, struct vic_image *output,

•                   unsigned int alpha, unsigned int red,
  

•                   unsigned int green, unsigned int blue)
  

+{

• struct vic30 *vic = container_of(v, struct vic30, base);
• ConfigStruct *c;
• int err;
• err = drm_tegra_bo_map(vic->config.bo, (void **)&c);
• if (err < 0) {

•    fprintf(stderr, "failed to map configuration structure: %s\n",
  

•            strerror(-err));
  

•    return err;
  

• }
• memset(c, 0, sizeof(*c));
• c->surfaceList0Struct.TargetRectLeft = 0;
• c->surfaceList0Struct.TargetRectTop = 0;
• c->surfaceList0Struct.TargetRectRight = output->width - 1;
• c->surfaceList0Struct.TargetRectBottom = output->height - 1;
• c->blending0Struct.PixelFormat = output->format;
• c->blending0Struct.BackgroundAlpha = alpha;
• c->blending0Struct.BackgroundR = red;
• c->blending0Struct.BackgroundG = green;
• c->blending0Struct.BackgroundB = blue;
• c->blending0Struct.LumaWidth = output->stride - 1;
• c->blending0Struct.LumaHeight = output->height - 1;
• c->blending0Struct.ChromaWidth = 16383;
• c->blending0Struct.ChromaHeight = 16383;
• c->blending0Struct.TargetRectLeft = 0;
• c->blending0Struct.TargetRectTop = 0;
• c->blending0Struct.TargetRectRight = output->width - 1;
• c->blending0Struct.TargetRectBottom = output->height - 1;
• c->blending0Struct.SurfaceWidth = output->width - 1;
• c->blending0Struct.SurfaceHeight = output->height - 1;
• c->blending0Struct.BlkKind = output->kind;
• c->blending0Struct.BlkHeight = 0;
• c->fetchControl0Struct.TargetRectLeft = 0;
• c->fetchControl0Struct.TargetRectTop = 0;
• c->fetchControl0Struct.TargetRectRight = output->width - 1;
• c->fetchControl0Struct.TargetRectBottom = output->height - 1;
• drm_tegra_bo_unmap(vic->config.bo);
• return 0;

+}

[...]

It does look exactly like:

return vic30_fill(v, output, 0, 0, output->width - 1, output->height - 1, alpha, red, green, blue);

Best Regards Michał Mirosław