test

.config/Code/User/History/-3c2d37cd/6AYS.h

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+#ifndef RENDER_PIXEL_FORMAT_H
+#define RENDER_PIXEL_FORMAT_H
+
+#include <wayland-server-protocol.h>
+
+/**
+ * Information about a pixel format.
+ *
+ * A pixel format is identified via its DRM four character code (see <drm_fourcc.h>).
+ *
+ * Simple formats have a block size of 1×1 pixels and bytes_per_block contains
+ * the number of bytes per pixel (including padding).
+ *
+ * Tiled formats (e.g. sub-sampled YCbCr) are described with a block size
+ * greater than 1×1 pixels. A block is a rectangle of pixels which are stored
+ * next to each other in a byte-aligned memory region.
+ */
+struct wlr_pixel_format_info {
+	uint32_t drm_format;
+
+	/* Equivalent of the format if it has an alpha channel,
+	 * DRM_FORMAT_INVALID (0) if NA
+	 */
+	uint32_t opaque_substitute;
+
+	/* Bytes per block (including padding) */
+	uint32_t bytes_per_block;
+	/* Size of a block in pixels (zero for 1×1) */
+	uint32_t block_width, block_height;
+};
+
+/**
+ * Get pixel format information from a DRM FourCC.
+ *
+ * NULL is returned if the pixel format is unknown.
+ */
+const struct wlr_pixel_format_info *drm_get_pixel_format_info(uint32_t fmt);
+/**
+ * Get the number of pixels per block for a pixel format.
+ */
+uint32_t pixel_format_info_pixels_per_block(const struct wlr_pixel_format_info *info);
+/**
+ * Get the minimum stride for a given pixel format and width.
+ */
+int32_t pixel_format_info_min_stride(const struct wlr_pixel_format_info *info, int32_t width);
+/**
+ * Check whether a stride is large enough for a given pixel format and width.
+ */
+bool pixel_format_info_check_stride(const struct wlr_pixel_format_info *info,
+	int32_t stride, int32_t width);
+
+/**
+ * Convert an enum wl_shm_format to a DRM FourCC.
+ */
+uint32_t convert_wl_shm_format_to_drm(enum wl_shm_format fmt);
+/**
+ * Convert a DRM FourCC to an enum wl_shm_format.
+ */
+enum wl_shm_format convert_drm_format_to_wl_shm(uint32_t fmt);
+
+/**
+ * Return true if the DRM FourCC fmt has an alpha channel, false otherwise.
+ */
+bool pixel_format_has_alpha(uint32_t fmt);
+
+#endif

.config/Code/User/History/-3c2d37cd/entries.json

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+{"version":1,"resource":"file:///home/rafayahmad/Stuff/Coding/C%2B%2B/sttracker/Hyprland/subprojects/wlroots-hyprland/include/render/pixel_format.h","entries":[{"id":"6AYS.h","timestamp":1716097008595}]}