vga: Rename vga_template.h to vga-helpers.h

It's no longer a template, we only instanciate the file once.

Keep it a #included file so the functions remain static.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 439 insertions, 0 deletions

diff --git a/hw/display/vga-helpers.h b/hw/display/vga-helpers.h
new file mode 100644
index 0000000000..94f6de2046
--- /dev/null
+++ b/hw/display/vga-helpers.h
@@ -0,0 +1,439 @@
+/*
+ * QEMU VGA Emulator templates
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static inline void vga_draw_glyph_line(uint8_t *d, uint32_t font_data,
+                                       uint32_t xorcol, uint32_t bgcol)
+{
+        ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
+}
+
+static void vga_draw_glyph8(uint8_t *d, int linesize,
+                            const uint8_t *font_ptr, int h,
+                            uint32_t fgcol, uint32_t bgcol)
+{
+    uint32_t font_data, xorcol;
+
+    xorcol = bgcol ^ fgcol;
+    do {
+        font_data = font_ptr[0];
+        vga_draw_glyph_line(d, font_data, xorcol, bgcol);
+        font_ptr += 4;
+        d += linesize;
+    } while (--h);
+}
+
+static void vga_draw_glyph16(uint8_t *d, int linesize,
+                                          const uint8_t *font_ptr, int h,
+                                          uint32_t fgcol, uint32_t bgcol)
+{
+    uint32_t font_data, xorcol;
+
+    xorcol = bgcol ^ fgcol;
+    do {
+        font_data = font_ptr[0];
+        vga_draw_glyph_line(d, expand4to8[font_data >> 4],
+                            xorcol, bgcol);
+        vga_draw_glyph_line(d + 32, expand4to8[font_data & 0x0f],
+                            xorcol, bgcol);
+        font_ptr += 4;
+        d += linesize;
+    } while (--h);
+}
+
+static void vga_draw_glyph9(uint8_t *d, int linesize,
+                            const uint8_t *font_ptr, int h,
+                            uint32_t fgcol, uint32_t bgcol, int dup9)
+{
+    uint32_t font_data, xorcol, v;
+
+    xorcol = bgcol ^ fgcol;
+    do {
+        font_data = font_ptr[0];
+        ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
+        v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
+        ((uint32_t *)d)[7] = v;
+        if (dup9)
+            ((uint32_t *)d)[8] = v;
+        else
+            ((uint32_t *)d)[8] = bgcol;
+        font_ptr += 4;
+        d += linesize;
+    } while (--h);
+}
+
+/*
+ * 4 color mode
+ */
+static void vga_draw_line2(VGACommonState *s1, uint8_t *d,
+                           const uint8_t *s, int width)
+{
+    uint32_t plane_mask, *palette, data, v;
+    int x;
+
+    palette = s1->last_palette;
+    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
+    width >>= 3;
+    for(x = 0; x < width; x++) {
+        data = ((uint32_t *)s)[0];
+        data &= plane_mask;
+        v = expand2[GET_PLANE(data, 0)];
+        v |= expand2[GET_PLANE(data, 2)] << 2;
+        ((uint32_t *)d)[0] = palette[v >> 12];
+        ((uint32_t *)d)[1] = palette[(v >> 8) & 0xf];
+        ((uint32_t *)d)[2] = palette[(v >> 4) & 0xf];
+        ((uint32_t *)d)[3] = palette[(v >> 0) & 0xf];
+
+        v = expand2[GET_PLANE(data, 1)];
+        v |= expand2[GET_PLANE(data, 3)] << 2;
+        ((uint32_t *)d)[4] = palette[v >> 12];
+        ((uint32_t *)d)[5] = palette[(v >> 8) & 0xf];
+        ((uint32_t *)d)[6] = palette[(v >> 4) & 0xf];
+        ((uint32_t *)d)[7] = palette[(v >> 0) & 0xf];
+        d += 32;
+        s += 4;
+    }
+}
+
+#define PUT_PIXEL2(d, n, v) \
+((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v)
+
+/*
+ * 4 color mode, dup2 horizontal
+ */
+static void vga_draw_line2d2(VGACommonState *s1, uint8_t *d,
+                             const uint8_t *s, int width)
+{
+    uint32_t plane_mask, *palette, data, v;
+    int x;
+
+    palette = s1->last_palette;
+    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
+    width >>= 3;
+    for(x = 0; x < width; x++) {
+        data = ((uint32_t *)s)[0];
+        data &= plane_mask;
+        v = expand2[GET_PLANE(data, 0)];
+        v |= expand2[GET_PLANE(data, 2)] << 2;
+        PUT_PIXEL2(d, 0, palette[v >> 12]);
+        PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]);
+        PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]);
+        PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]);
+
+        v = expand2[GET_PLANE(data, 1)];
+        v |= expand2[GET_PLANE(data, 3)] << 2;
+        PUT_PIXEL2(d, 4, palette[v >> 12]);
+        PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
+        PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
+        PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
+        d += 64;
+        s += 4;
+    }
+}
+
+/*
+ * 16 color mode
+ */
+static void vga_draw_line4(VGACommonState *s1, uint8_t *d,
+                           const uint8_t *s, int width)
+{
+    uint32_t plane_mask, data, v, *palette;
+    int x;
+
+    palette = s1->last_palette;
+    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
+    width >>= 3;
+    for(x = 0; x < width; x++) {
+        data = ((uint32_t *)s)[0];
+        data &= plane_mask;
+        v = expand4[GET_PLANE(data, 0)];
+        v |= expand4[GET_PLANE(data, 1)] << 1;
+        v |= expand4[GET_PLANE(data, 2)] << 2;
+        v |= expand4[GET_PLANE(data, 3)] << 3;
+        ((uint32_t *)d)[0] = palette[v >> 28];
+        ((uint32_t *)d)[1] = palette[(v >> 24) & 0xf];
+        ((uint32_t *)d)[2] = palette[(v >> 20) & 0xf];
+        ((uint32_t *)d)[3] = palette[(v >> 16) & 0xf];
+        ((uint32_t *)d)[4] = palette[(v >> 12) & 0xf];
+        ((uint32_t *)d)[5] = palette[(v >> 8) & 0xf];
+        ((uint32_t *)d)[6] = palette[(v >> 4) & 0xf];
+        ((uint32_t *)d)[7] = palette[(v >> 0) & 0xf];
+        d += 32;
+        s += 4;
+    }
+}
+
+/*
+ * 16 color mode, dup2 horizontal
+ */
+static void vga_draw_line4d2(VGACommonState *s1, uint8_t *d,
+                             const uint8_t *s, int width)
+{
+    uint32_t plane_mask, data, v, *palette;
+    int x;
+
+    palette = s1->last_palette;
+    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
+    width >>= 3;
+    for(x = 0; x < width; x++) {
+        data = ((uint32_t *)s)[0];
+        data &= plane_mask;
+        v = expand4[GET_PLANE(data, 0)];
+        v |= expand4[GET_PLANE(data, 1)] << 1;
+        v |= expand4[GET_PLANE(data, 2)] << 2;
+        v |= expand4[GET_PLANE(data, 3)] << 3;
+        PUT_PIXEL2(d, 0, palette[v >> 28]);
+        PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]);
+        PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]);
+        PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]);
+        PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]);
+        PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
+        PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
+        PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
+        d += 64;
+        s += 4;
+    }
+}
+
+/*
+ * 256 color mode, double pixels
+ *
+ * XXX: add plane_mask support (never used in standard VGA modes)
+ */
+static void vga_draw_line8d2(VGACommonState *s1, uint8_t *d,
+                             const uint8_t *s, int width)
+{
+    uint32_t *palette;
+    int x;
+
+    palette = s1->last_palette;
+    width >>= 3;
+    for(x = 0; x < width; x++) {
+        PUT_PIXEL2(d, 0, palette[s[0]]);
+        PUT_PIXEL2(d, 1, palette[s[1]]);
+        PUT_PIXEL2(d, 2, palette[s[2]]);
+        PUT_PIXEL2(d, 3, palette[s[3]]);
+        d += 32;
+        s += 4;
+    }
+}
+
+/*
+ * standard 256 color mode
+ *
+ * XXX: add plane_mask support (never used in standard VGA modes)
+ */
+static void vga_draw_line8(VGACommonState *s1, uint8_t *d,
+                           const uint8_t *s, int width)
+{
+    uint32_t *palette;
+    int x;
+
+    palette = s1->last_palette;
+    width >>= 3;
+    for(x = 0; x < width; x++) {
+        ((uint32_t *)d)[0] = palette[s[0]];
+        ((uint32_t *)d)[1] = palette[s[1]];
+        ((uint32_t *)d)[2] = palette[s[2]];
+        ((uint32_t *)d)[3] = palette[s[3]];
+        ((uint32_t *)d)[4] = palette[s[4]];
+        ((uint32_t *)d)[5] = palette[s[5]];
+        ((uint32_t *)d)[6] = palette[s[6]];
+        ((uint32_t *)d)[7] = palette[s[7]];
+        d += 32;
+        s += 8;
+    }
+}
+
+/*
+ * 15 bit color
+ */
+static void vga_draw_line15_le(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+    int w;
+    uint32_t v, r, g, b;
+
+    w = width;
+    do {
+        v = lduw_le_p((void *)s);
+        r = (v >> 7) & 0xf8;
+        g = (v >> 2) & 0xf8;
+        b = (v << 3) & 0xf8;
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 2;
+        d += 4;
+    } while (--w != 0);
+}
+
+static void vga_draw_line15_be(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+    int w;
+    uint32_t v, r, g, b;
+
+    w = width;
+    do {
+        v = lduw_be_p((void *)s);
+        r = (v >> 7) & 0xf8;
+        g = (v >> 2) & 0xf8;
+        b = (v << 3) & 0xf8;
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 2;
+        d += 4;
+    } while (--w != 0);
+}
+
+/*
+ * 16 bit color
+ */
+static void vga_draw_line16_le(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+    int w;
+    uint32_t v, r, g, b;
+
+    w = width;
+    do {
+        v = lduw_le_p((void *)s);
+        r = (v >> 8) & 0xf8;
+        g = (v >> 3) & 0xfc;
+        b = (v << 3) & 0xf8;
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 2;
+        d += 4;
+    } while (--w != 0);
+}
+
+static void vga_draw_line16_be(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+    int w;
+    uint32_t v, r, g, b;
+
+    w = width;
+    do {
+        v = lduw_be_p((void *)s);
+        r = (v >> 8) & 0xf8;
+        g = (v >> 3) & 0xfc;
+        b = (v << 3) & 0xf8;
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 2;
+        d += 4;
+    } while (--w != 0);
+}
+
+/*
+ * 24 bit color
+ */
+static void vga_draw_line24_le(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+    int w;
+    uint32_t r, g, b;
+
+    w = width;
+    do {
+        b = s[0];
+        g = s[1];
+        r = s[2];
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 3;
+        d += 4;
+    } while (--w != 0);
+}
+
+static void vga_draw_line24_be(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+    int w;
+    uint32_t r, g, b;
+
+    w = width;
+    do {
+        r = s[0];
+        g = s[1];
+        b = s[2];
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 3;
+        d += 4;
+    } while (--w != 0);
+}
+
+/*
+ * 32 bit color
+ */
+static void vga_draw_line32_le(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+#ifndef HOST_WORDS_BIGENDIAN
+    memcpy(d, s, width * 4);
+#else
+    int w;
+    uint32_t r, g, b;
+
+    w = width;
+    do {
+        b = s[0];
+        g = s[1];
+        r = s[2];
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 4;
+        d += 4;
+    } while (--w != 0);
+#endif
+}
+
+static void vga_draw_line32_be(VGACommonState *s1, uint8_t *d,
+                               const uint8_t *s, int width)
+{
+#ifdef HOST_WORDS_BIGENDIAN
+    memcpy(d, s, width * 4);
+#else
+    int w;
+    uint32_t r, g, b;
+
+    w = width;
+    do {
+        r = s[1];
+        g = s[2];
+        b = s[3];
+        ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
+        s += 4;
+        d += 4;
+    } while (--w != 0);
+#endif
+}