add hw/omap_dss_drawfn.h

Omap DSS draw functions

1 files changed, 284 insertions, 0 deletions

diff --git a/hw/omap_dss_drawfn.h b/hw/omap_dss_drawfn.h
new file mode 100644
index 0000000000..37ba136950
--- /dev/null
+++ b/hw/omap_dss_drawfn.h
@@ -0,0 +1,284 @@
+/*
+ * QEMU OMAP DSS display plane rendering emulation templates
+ *
+ * Copyright (c) 2008 yajin  <yajin@vm-kernel.org>
+ * Copyright (c) 2008-2009 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+#if DEPTH == 8
+#define PIXEL_TYPE		uint8_t
+#define COPY_PIXEL1(to, from)	*to ++ = from
+#elif DEPTH == 15 || DEPTH == 16
+#define PIXEL_TYPE		uint16_t
+#define COPY_PIXEL1(to, from)	*to ++ = from
+#elif DEPTH == 24
+#define PIXEL_TYPE		uint8_t
+#define COPY_PIXEL1(to, from)	\
+    *to ++ = from; *to ++ = (from) >> 8; *to ++ = (from) >> 16
+#elif DEPTH == 32
+#define PIXEL_TYPE		uint32_t
+#define COPY_PIXEL1(to, from)	*to ++ = from
+#else
+#error unknown bit depth
+#endif
+
+#ifdef WORDS_BIGENDIAN
+#define SWAP_WORDS	1
+#endif
+
+static void glue(omap_dss_draw_line1_, DEPTH)(void *opaque,
+                                              uint8_t *dest_,
+                                              const uint8_t *src,
+                                              int width,
+                                              int pixelsize)
+{
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    const uint32_t *palette = opaque;
+    unsigned int r, g, b;
+    const uint8_t *end = src + (width >> 3);
+    while (src < end) {
+        uint8_t data = ldub_raw(src++);
+        int i = 8;
+        for (; i--; data <<= 1) {
+            uint32_t color = palette[data >> 7];
+            b = color & 0xff;
+            g = (color >> 8) & 0xff;
+            r = (color >> 16) & 0xff;
+            COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+        }
+    }
+}
+
+static void glue(omap_dss_draw_line2_, DEPTH)(void *opaque,
+                                              uint8_t *dest_,
+                                              const uint8_t *src,
+                                              int width,
+                                              int pixelsize)
+{
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    const uint32_t *palette = opaque;
+    unsigned int r, g, b;
+    const uint8_t *end = src + (width >> 2);
+    while (src < end) {
+        uint8_t data = ldub_raw(src++);
+        uint32_t color = palette[data >> 6];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+        color = palette[(data >> 4) & 3];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+        color = palette[(data >> 2) & 3];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+        color = palette[data & 3];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+}
+
+static void glue(omap_dss_draw_line4_, DEPTH)(void *opaque,
+                                              uint8_t *dest_,
+                                              const uint8_t *src,
+                                              int width,
+                                              int pixelsize)
+{
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    const uint32_t *palette = opaque;
+    unsigned int r, g, b;
+    const uint8_t *end = src + (width >> 1);
+    while (src < end) {
+        uint8_t data = ldub_raw(src++);
+        uint32_t color = palette[data >> 4];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+        color = palette[data & 0x0f];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+}
+
+static void glue(omap_dss_draw_line8_, DEPTH)(void *opaque,
+                                              uint8_t *dest_,
+                                              const uint8_t *src,
+                                              int width,
+                                              int pixelsize)
+{
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    const uint32_t *palette = opaque;
+    unsigned int r, g, b;
+    const uint8_t *end = src + width;
+    while (src < end) {
+        uint32_t color = palette[ldub_raw(src++)];
+        b = color & 0xff;
+        g = (color >> 8) & 0xff;
+        r = (color >> 16) & 0xff;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+}
+
+static void glue(omap_dss_draw_line12_, DEPTH)(void *opaque,
+                                               uint8_t *dest_,
+                                               const uint8_t *src_,
+                                               int width,
+                                               int pixelsize)
+{
+    const uint16_t *src = (const uint16_t *)src_;
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    uint16_t data;
+    unsigned int r, g, b;
+    const uint16_t *end = src + width;
+    while (src < end) {
+        data = lduw_raw(src++);
+        b = (data & 0x0f) << 4;
+        g = (data & 0xf0);
+        r = (data & 0xf00) >> 4;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+}
+
+static void glue(omap_dss_draw_line16_, DEPTH)(void *opaque,
+                                               uint8_t *dest_,
+                                               const uint8_t *src_,
+                                               int width,
+                                               int pixelsize)
+{
+#if !defined(SWAP_WORDS) && DEPTH == 16
+    memcpy(dest_, src_, width << 1);
+#else
+    const uint16_t *src = (const uint16_t *)src_;
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    uint16_t data;
+    unsigned int r, g, b;
+    const uint16_t *end = src + width;
+    while (src < end) {
+        data = lduw_raw(src++);
+        b = (data & 0x1f) << 3;
+        g = (data & 0x7e0) >> 3;
+        r = data >> 8;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+#endif
+}
+
+static void glue(omap_dss_draw_line24a_, DEPTH)(void *opaque,
+                                                uint8_t *dest_,
+                                                const uint8_t *src,
+                                                int width,
+                                                int pixelsize)
+{
+#if !defined(SWAP_WORDS) && DEPTH == 32
+    memcpy(dest_, src, width << 2);
+#else
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    unsigned int r, g, b;
+    const uint8_t *end = src + (width << 2);
+    while (src < end) {
+        b = ldub_raw(src++);
+        g = ldub_raw(src++);
+        r = ldub_raw(src++);
+        src++;
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+#endif
+}
+
+static void glue(omap_dss_draw_line24b_, DEPTH)(void *opaque,
+                                                uint8_t *dest_,
+                                                const uint8_t *src,
+                                                int width,
+                                                int pixelsize)
+{
+#if DEPTH == 24
+    memcpy(dest_, src, width * 3);
+#else
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    unsigned int r, g, b;
+    const uint8_t *end = src + width * 3;
+    while (src < end) {
+        b = ldub_raw(src++);
+        g = ldub_raw(src++);
+        r = ldub_raw(src++);
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+#endif
+}
+
+static void glue(omap_dss_draw_line24c_, DEPTH)(void *opaque,
+                                                uint8_t *dest_,
+                                                const uint8_t *src,
+                                                int width,
+                                                int pixelsize)
+{
+    PIXEL_TYPE *dest = (PIXEL_TYPE *)dest_;
+    unsigned int r, g, b;
+    const uint8_t *end = src + (width << 2);
+    while (src < end) {
+        src++;
+        b = ldub_raw(src++);
+        g = ldub_raw(src++);
+        r = ldub_raw(src++);
+        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
+    }
+}
+
+/* No rotation */
+static const drawfn glue(omap_dss_drawfn_, DEPTH)[0x10] = {
+    (drawfn)glue(omap_dss_draw_line1_, DEPTH),
+    (drawfn)glue(omap_dss_draw_line2_, DEPTH),
+    (drawfn)glue(omap_dss_draw_line4_, DEPTH),
+    (drawfn)glue(omap_dss_draw_line8_, DEPTH),
+    (drawfn)glue(omap_dss_draw_line12_, DEPTH),
+    NULL, /* ARGB16 */
+    (drawfn)glue(omap_dss_draw_line16_, DEPTH),
+    NULL,
+    (drawfn)glue(omap_dss_draw_line24a_, DEPTH),
+    (drawfn)glue(omap_dss_draw_line24b_, DEPTH),
+    NULL, /* YUV2 4:2:2 */
+    NULL, /* UYVY 4:2:2 */
+    (drawfn)glue(omap_dss_draw_line24a_, DEPTH), /* FIXME: handle alpha */
+    (drawfn)glue(omap_dss_draw_line24c_, DEPTH), /* FIXME: handle alpha */
+    (drawfn)glue(omap_dss_draw_line24c_, DEPTH),
+    NULL,
+};
+
+/* 90deg, 180deg and 270deg rotation */
+//static omap3_lcd_panel_fn_t glue(omap3_lcd_panel_draw_fn_r_, DEPTH)[0x10] = {
+//    /* TODO */
+//    [0 ... 0xf] = NULL,
+//};
+
+#undef DEPTH
+#undef SKIP_PIXEL
+#undef COPY_PIXEL
+#undef COPY_PIXEL1
+#undef PIXEL_TYPE
+
+#undef SWAP_WORDS