diff options
Diffstat (limited to 'hw/display/cirrus_vga.c')
| -rw-r--r-- | hw/display/cirrus_vga.c | 71 |
1 files changed, 42 insertions, 29 deletions
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c index 16f27e8ac5..1deb52070a 100644 --- a/hw/display/cirrus_vga.c +++ b/hw/display/cirrus_vga.c @@ -28,6 +28,7 @@ */ #include "qemu/osdep.h" #include "qapi/error.h" +#include "trace.h" #include "hw/hw.h" #include "hw/pci/pci.h" #include "ui/console.h" @@ -272,6 +273,9 @@ static void cirrus_update_memory_access(CirrusVGAState *s); static bool blit_region_is_unsafe(struct CirrusVGAState *s, int32_t pitch, int32_t addr) { + if (!pitch) { + return true; + } if (pitch < 0) { int64_t min = addr + ((int64_t)s->cirrus_blt_height - 1) * pitch @@ -290,11 +294,8 @@ static bool blit_region_is_unsafe(struct CirrusVGAState *s, return false; } -static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only, - bool zero_src_pitch_ok) +static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only) { - int32_t check_pitch; - /* should be the case, see cirrus_bitblt_start */ assert(s->cirrus_blt_width > 0); assert(s->cirrus_blt_height > 0); @@ -303,10 +304,6 @@ static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only, return true; } - if (!s->cirrus_blt_dstpitch) { - return true; - } - if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch, s->cirrus_blt_dstaddr)) { return true; @@ -314,13 +311,7 @@ static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only, if (dst_only) { return false; } - - check_pitch = s->cirrus_blt_srcpitch; - if (!zero_src_pitch_ok && !check_pitch) { - check_pitch = s->cirrus_blt_width; - } - - if (blit_region_is_unsafe(s, check_pitch, + if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch, s->cirrus_blt_srcaddr)) { return true; } @@ -683,14 +674,39 @@ static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin, } } -static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s, - const uint8_t * src) +static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s, bool videosrc) { + uint32_t patternsize; uint8_t *dst; + uint8_t *src; dst = s->vga.vram_ptr + s->cirrus_blt_dstaddr; - if (blit_is_unsafe(s, false, true)) { + if (videosrc) { + switch (s->vga.get_bpp(&s->vga)) { + case 8: + patternsize = 64; + break; + case 15: + case 16: + patternsize = 128; + break; + case 24: + case 32: + default: + patternsize = 256; + break; + } + s->cirrus_blt_srcaddr &= ~(patternsize - 1); + if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) { + return 0; + } + src = s->vga.vram_ptr + s->cirrus_blt_srcaddr; + } else { + src = s->cirrus_bltbuf; + } + + if (blit_is_unsafe(s, true)) { return 0; } @@ -709,7 +725,7 @@ static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop) { cirrus_fill_t rop_func; - if (blit_is_unsafe(s, true, true)) { + if (blit_is_unsafe(s, true)) { return 0; } rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; @@ -731,8 +747,7 @@ static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop) static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s) { - return cirrus_bitblt_common_patterncopy(s, s->vga.vram_ptr + - (s->cirrus_blt_srcaddr & ~7)); + return cirrus_bitblt_common_patterncopy(s, true); } static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h) @@ -810,7 +825,7 @@ static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h) static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s) { - if (blit_is_unsafe(s, false, false)) + if (blit_is_unsafe(s, false)) return 0; return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr, @@ -831,7 +846,7 @@ static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s) if (s->cirrus_srccounter > 0) { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { - cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf); + cirrus_bitblt_common_patterncopy(s, false); the_end: s->cirrus_srccounter = 0; cirrus_bitblt_reset(s); @@ -1852,12 +1867,14 @@ static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address) break; } + trace_vga_cirrus_write_blt(address, value); return (uint8_t) value; } static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address, uint8_t value) { + trace_vga_cirrus_write_blt(address, value); switch (address) { case (CIRRUS_MMIO_BLTBGCOLOR + 0): cirrus_vga_write_gr(s, 0x00, value); @@ -2607,9 +2624,7 @@ static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr, break; } } -#if defined(DEBUG_VGA) - printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val); -#endif + trace_vga_cirrus_read_io(addr, val); return val; } @@ -2626,9 +2641,7 @@ static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val, if (vga_ioport_invalid(s, addr)) { return; } -#ifdef DEBUG_VGA - printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val); -#endif + trace_vga_cirrus_write_io(addr, val); switch (addr) { case 0x3c0: |