9be385980d
Use Coccinelle script to replace 'ret = E; return ret' with 'return E'. The script will do the substitution only when the function return type and variable type are the same. Manual fixups: * audio/audio.c: coding style of "read (...)" and "write (...)" * block/qcow2-cluster.c: wrap line to make it shorter * block/qcow2-refcount.c: change indentation of wrapped line * target-tricore/op_helper.c: fix coding style of "remainder|quotient" * target-mips/dsp_helper.c: reverted changes because I don't want to argue about checkpatch.pl * ui/qemu-pixman.c: fix line indentation * block/rbd.c: restore blank line between declarations and statements Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1465855078-19435-4-git-send-email-ehabkost@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Unused Coccinelle rule name dropped along with a redundant comment; whitespace touched up in block/qcow2-cluster.c; stale commit message paragraph deleted] Signed-off-by: Markus Armbruster <armbru@redhat.com>
251 lines
7.1 KiB
C
251 lines
7.1 KiB
C
/*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "ui/console.h"
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PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format)
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{
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PixelFormat pf;
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uint8_t bpp;
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bpp = pf.bits_per_pixel = PIXMAN_FORMAT_BPP(format);
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pf.bytes_per_pixel = PIXMAN_FORMAT_BPP(format) / 8;
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pf.depth = PIXMAN_FORMAT_DEPTH(format);
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pf.abits = PIXMAN_FORMAT_A(format);
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pf.rbits = PIXMAN_FORMAT_R(format);
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pf.gbits = PIXMAN_FORMAT_G(format);
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pf.bbits = PIXMAN_FORMAT_B(format);
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switch (PIXMAN_FORMAT_TYPE(format)) {
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case PIXMAN_TYPE_ARGB:
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pf.ashift = pf.bbits + pf.gbits + pf.rbits;
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pf.rshift = pf.bbits + pf.gbits;
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pf.gshift = pf.bbits;
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pf.bshift = 0;
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break;
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case PIXMAN_TYPE_ABGR:
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pf.ashift = pf.rbits + pf.gbits + pf.bbits;
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pf.bshift = pf.rbits + pf.gbits;
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pf.gshift = pf.rbits;
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pf.rshift = 0;
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break;
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case PIXMAN_TYPE_BGRA:
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pf.bshift = bpp - pf.bbits;
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pf.gshift = bpp - (pf.bbits + pf.gbits);
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pf.rshift = bpp - (pf.bbits + pf.gbits + pf.rbits);
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pf.ashift = 0;
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break;
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case PIXMAN_TYPE_RGBA:
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pf.rshift = bpp - pf.rbits;
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pf.gshift = bpp - (pf.rbits + pf.gbits);
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pf.bshift = bpp - (pf.rbits + pf.gbits + pf.bbits);
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pf.ashift = 0;
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break;
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default:
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g_assert_not_reached();
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break;
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}
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pf.amax = (1 << pf.abits) - 1;
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pf.rmax = (1 << pf.rbits) - 1;
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pf.gmax = (1 << pf.gbits) - 1;
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pf.bmax = (1 << pf.bbits) - 1;
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pf.amask = pf.amax << pf.ashift;
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pf.rmask = pf.rmax << pf.rshift;
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pf.gmask = pf.gmax << pf.gshift;
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pf.bmask = pf.bmax << pf.bshift;
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return pf;
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}
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pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian)
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{
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if (native_endian) {
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switch (bpp) {
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case 15:
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return PIXMAN_x1r5g5b5;
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case 16:
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return PIXMAN_r5g6b5;
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case 24:
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return PIXMAN_r8g8b8;
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case 32:
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return PIXMAN_x8r8g8b8;
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}
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} else {
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switch (bpp) {
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case 24:
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return PIXMAN_b8g8r8;
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case 32:
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return PIXMAN_b8g8r8x8;
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break;
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}
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}
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return 0;
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}
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int qemu_pixman_get_type(int rshift, int gshift, int bshift)
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{
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int type = PIXMAN_TYPE_OTHER;
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if (rshift > gshift && gshift > bshift) {
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if (bshift == 0) {
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type = PIXMAN_TYPE_ARGB;
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} else {
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#if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 21, 8)
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type = PIXMAN_TYPE_RGBA;
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#endif
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}
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} else if (rshift < gshift && gshift < bshift) {
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if (rshift == 0) {
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type = PIXMAN_TYPE_ABGR;
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} else {
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#if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 16, 0)
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type = PIXMAN_TYPE_BGRA;
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#endif
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}
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}
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return type;
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}
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pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf)
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{
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pixman_format_code_t format;
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int type;
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type = qemu_pixman_get_type(pf->rshift, pf->gshift, pf->bshift);
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format = PIXMAN_FORMAT(pf->bits_per_pixel, type,
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pf->abits, pf->rbits, pf->gbits, pf->bbits);
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if (!pixman_format_supported_source(format)) {
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return 0;
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}
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return format;
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}
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/*
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* Return true for known-good pixman conversions.
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*
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* UIs using pixman for format conversion can hook this into
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* DisplayChangeListenerOps->dpy_gfx_check_format
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*/
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bool qemu_pixman_check_format(DisplayChangeListener *dcl,
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pixman_format_code_t format)
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{
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switch (format) {
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/* 32 bpp */
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case PIXMAN_x8r8g8b8:
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case PIXMAN_a8r8g8b8:
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case PIXMAN_b8g8r8x8:
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case PIXMAN_b8g8r8a8:
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/* 24 bpp */
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case PIXMAN_r8g8b8:
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case PIXMAN_b8g8r8:
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/* 16 bpp */
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case PIXMAN_x1r5g5b5:
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case PIXMAN_r5g6b5:
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return true;
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default:
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return false;
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}
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}
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pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
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int width)
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{
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pixman_image_t *image = pixman_image_create_bits(format, width, 1, NULL, 0);
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assert(image != NULL);
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return image;
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}
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/* fill linebuf from framebuffer */
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void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
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int width, int x, int y)
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{
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pixman_image_composite(PIXMAN_OP_SRC, fb, NULL, linebuf,
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x, y, 0, 0, 0, 0, width, 1);
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}
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/* copy linebuf to framebuffer */
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void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y,
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pixman_image_t *linebuf)
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{
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pixman_image_composite(PIXMAN_OP_SRC, linebuf, NULL, fb,
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0, 0, 0, 0, x, y, width, 1);
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}
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pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
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pixman_image_t *image)
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{
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return pixman_image_create_bits(format,
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pixman_image_get_width(image),
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pixman_image_get_height(image),
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NULL,
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pixman_image_get_stride(image));
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}
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void qemu_pixman_image_unref(pixman_image_t *image)
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{
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if (image == NULL) {
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return;
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}
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pixman_image_unref(image);
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}
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pixman_color_t qemu_pixman_color(PixelFormat *pf, uint32_t color)
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{
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pixman_color_t c;
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c.red = ((color & pf->rmask) >> pf->rshift) << (16 - pf->rbits);
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c.green = ((color & pf->gmask) >> pf->gshift) << (16 - pf->gbits);
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c.blue = ((color & pf->bmask) >> pf->bshift) << (16 - pf->bbits);
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c.alpha = ((color & pf->amask) >> pf->ashift) << (16 - pf->abits);
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return c;
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}
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pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
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unsigned int ch)
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{
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pixman_image_t *glyph;
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uint8_t *data;
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bool bit;
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int x, y;
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glyph = pixman_image_create_bits(PIXMAN_a8, 8, height,
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NULL, 0);
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data = (uint8_t *)pixman_image_get_data(glyph);
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font += height * ch;
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for (y = 0; y < height; y++, font++) {
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for (x = 0; x < 8; x++, data++) {
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bit = (*font) & (1 << (7-x));
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*data = bit ? 0xff : 0x00;
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}
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}
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return glyph;
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}
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void qemu_pixman_glyph_render(pixman_image_t *glyph,
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pixman_image_t *surface,
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pixman_color_t *fgcol,
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pixman_color_t *bgcol,
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int x, int y, int cw, int ch)
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{
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pixman_image_t *ifg = pixman_image_create_solid_fill(fgcol);
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pixman_image_t *ibg = pixman_image_create_solid_fill(bgcol);
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pixman_image_composite(PIXMAN_OP_SRC, ibg, NULL, surface,
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0, 0, 0, 0,
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cw * x, ch * y,
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cw, ch);
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pixman_image_composite(PIXMAN_OP_OVER, ifg, glyph, surface,
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0, 0, 0, 0,
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cw * x, ch * y,
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cw, ch);
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pixman_image_unref(ifg);
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pixman_image_unref(ibg);
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}
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