--- /dev/null
+/*
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu-common.h"
+#include "ui/console.h"
+
+PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format)
+{
+ PixelFormat pf;
+ uint8_t bpp;
+
+ bpp = pf.bits_per_pixel = PIXMAN_FORMAT_BPP(format);
+ pf.bytes_per_pixel = PIXMAN_FORMAT_BPP(format) / 8;
+ pf.depth = PIXMAN_FORMAT_DEPTH(format);
+
+ pf.abits = PIXMAN_FORMAT_A(format);
+ pf.rbits = PIXMAN_FORMAT_R(format);
+ pf.gbits = PIXMAN_FORMAT_G(format);
+ pf.bbits = PIXMAN_FORMAT_B(format);
+
+ switch (PIXMAN_FORMAT_TYPE(format)) {
+ case PIXMAN_TYPE_ARGB:
+ pf.ashift = pf.bbits + pf.gbits + pf.rbits;
+ pf.rshift = pf.bbits + pf.gbits;
+ pf.gshift = pf.bbits;
+ pf.bshift = 0;
+ break;
+ case PIXMAN_TYPE_ABGR:
+ pf.ashift = pf.rbits + pf.gbits + pf.bbits;
+ pf.bshift = pf.rbits + pf.gbits;
+ pf.gshift = pf.rbits;
+ pf.rshift = 0;
+ break;
+ case PIXMAN_TYPE_BGRA:
+ pf.bshift = bpp - pf.bbits;
+ pf.gshift = bpp - (pf.bbits + pf.gbits);
+ pf.rshift = bpp - (pf.bbits + pf.gbits + pf.rbits);
+ pf.ashift = 0;
+ break;
+ case PIXMAN_TYPE_RGBA:
+ pf.rshift = bpp - pf.rbits;
+ pf.gshift = bpp - (pf.rbits + pf.gbits);
+ pf.bshift = bpp - (pf.rbits + pf.gbits + pf.bbits);
+ pf.ashift = 0;
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
+
+ pf.amax = (1 << pf.abits) - 1;
+ pf.rmax = (1 << pf.rbits) - 1;
+ pf.gmax = (1 << pf.gbits) - 1;
+ pf.bmax = (1 << pf.bbits) - 1;
+ pf.amask = pf.amax << pf.ashift;
+ pf.rmask = pf.rmax << pf.rshift;
+ pf.gmask = pf.gmax << pf.gshift;
+ pf.bmask = pf.bmax << pf.bshift;
+
+ return pf;
+}
+
+pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian)
+{
+ if (native_endian) {
+ switch (bpp) {
+ case 15:
+ return PIXMAN_x1r5g5b5;
+ case 16:
+ return PIXMAN_r5g6b5;
+ case 24:
+ return PIXMAN_r8g8b8;
+ case 32:
+ return PIXMAN_x8r8g8b8;
+ }
+ } else {
+ switch (bpp) {
+ case 24:
+ return PIXMAN_b8g8r8;
+ case 32:
+ return PIXMAN_b8g8r8x8;
+ break;
+ }
+ }
+ return 0;
+}
+
+int qemu_pixman_get_type(int rshift, int gshift, int bshift)
+{
+ int type = PIXMAN_TYPE_OTHER;
+
+ if (rshift > gshift && gshift > bshift) {
+ if (bshift == 0) {
+ type = PIXMAN_TYPE_ARGB;
+ } else {
+#if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 21, 8)
+ type = PIXMAN_TYPE_RGBA;
+#endif
+ }
+ } else if (rshift < gshift && gshift < bshift) {
+ if (rshift == 0) {
+ type = PIXMAN_TYPE_ABGR;
+ } else {
+#if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 16, 0)
+ type = PIXMAN_TYPE_BGRA;
+#endif
+ }
+ }
+ return type;
+}
+
+pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf)
+{
+ pixman_format_code_t format;
+ int type;
+
+ type = qemu_pixman_get_type(pf->rshift, pf->gshift, pf->bshift);
+ format = PIXMAN_FORMAT(pf->bits_per_pixel, type,
+ pf->abits, pf->rbits, pf->gbits, pf->bbits);
+ if (!pixman_format_supported_source(format)) {
+ return 0;
+ }
+ return format;
+}
+
+/*
+ * Return true for known-good pixman conversions.
+ *
+ * UIs using pixman for format conversion can hook this into
+ * DisplayChangeListenerOps->dpy_gfx_check_format
+ */
+bool qemu_pixman_check_format(DisplayChangeListener *dcl,
+ pixman_format_code_t format)
+{
+ switch (format) {
+ /* 32 bpp */
+ case PIXMAN_x8r8g8b8:
+ case PIXMAN_a8r8g8b8:
+ case PIXMAN_b8g8r8x8:
+ case PIXMAN_b8g8r8a8:
+ /* 24 bpp */
+ case PIXMAN_r8g8b8:
+ case PIXMAN_b8g8r8:
+ /* 16 bpp */
+ case PIXMAN_x1r5g5b5:
+ case PIXMAN_r5g6b5:
+ return true;
+ default:
+ return false;
+ }
+}
+
+pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
+ int width)
+{
+ pixman_image_t *image = pixman_image_create_bits(format, width, 1, NULL, 0);
+ assert(image != NULL);
+ return image;
+}
+
+/* fill linebuf from framebuffer */
+void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
+ int width, int x, int y)
+{
+ pixman_image_composite(PIXMAN_OP_SRC, fb, NULL, linebuf,
+ x, y, 0, 0, 0, 0, width, 1);
+}
+
+/* copy linebuf to framebuffer */
+void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y,
+ pixman_image_t *linebuf)
+{
+ pixman_image_composite(PIXMAN_OP_SRC, linebuf, NULL, fb,
+ 0, 0, 0, 0, x, y, width, 1);
+}
+
+pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
+ pixman_image_t *image)
+{
+ pixman_image_t *mirror;
+
+ mirror = pixman_image_create_bits(format,
+ pixman_image_get_width(image),
+ pixman_image_get_height(image),
+ NULL,
+ pixman_image_get_stride(image));
+ return mirror;
+}
+
+void qemu_pixman_image_unref(pixman_image_t *image)
+{
+ if (image == NULL) {
+ return;
+ }
+ pixman_image_unref(image);
+}
+
+pixman_color_t qemu_pixman_color(PixelFormat *pf, uint32_t color)
+{
+ pixman_color_t c;
+
+ c.red = ((color & pf->rmask) >> pf->rshift) << (16 - pf->rbits);
+ c.green = ((color & pf->gmask) >> pf->gshift) << (16 - pf->gbits);
+ c.blue = ((color & pf->bmask) >> pf->bshift) << (16 - pf->bbits);
+ c.alpha = ((color & pf->amask) >> pf->ashift) << (16 - pf->abits);
+ return c;
+}
+
+pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
+ unsigned int ch)
+{
+ pixman_image_t *glyph;
+ uint8_t *data;
+ bool bit;
+ int x, y;
+
+ glyph = pixman_image_create_bits(PIXMAN_a8, 8, height,
+ NULL, 0);
+ data = (uint8_t *)pixman_image_get_data(glyph);
+
+ font += height * ch;
+ for (y = 0; y < height; y++, font++) {
+ for (x = 0; x < 8; x++, data++) {
+ bit = (*font) & (1 << (7-x));
+ *data = bit ? 0xff : 0x00;
+ }
+ }
+ return glyph;
+}
+
+void qemu_pixman_glyph_render(pixman_image_t *glyph,
+ pixman_image_t *surface,
+ pixman_color_t *fgcol,
+ pixman_color_t *bgcol,
+ int x, int y, int cw, int ch)
+{
+ pixman_image_t *ifg = pixman_image_create_solid_fill(fgcol);
+ pixman_image_t *ibg = pixman_image_create_solid_fill(bgcol);
+
+ pixman_image_composite(PIXMAN_OP_SRC, ibg, NULL, surface,
+ 0, 0, 0, 0,
+ cw * x, ch * y,
+ cw, ch);
+ pixman_image_composite(PIXMAN_OP_OVER, ifg, glyph, surface,
+ 0, 0, 0, 0,
+ cw * x, ch * y,
+ cw, ch);
+ pixman_image_unref(ifg);
+ pixman_image_unref(ibg);
+}
Code Review / kvmfornfv.git / blobdiff