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TIC-80-guile
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added getPixel

This commit is contained in:
BADIM-PC\Vadim 2017-12-01 11:25:07 +03:00
parent 096cd980df
commit c0c90287b8
2 changed files with 41 additions and 11 deletions
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3
src/machine.h
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@ -90,7 +90,8 @@ typedef struct
u32 palette[TIC_PALETTE_SIZE];
} ovr;
void (*pixel)(tic_mem* memory, s32 x, s32 y, u8 color);
void (*setpix)(tic_mem* memory, s32 x, s32 y, u8 color);
u8 (*getpix)(tic_mem* memory, s32 x, s32 y);
bool initialized;
} MachineState;

49
src/tic.c
View File

@ -154,33 +154,59 @@ static inline u8 mapColor(tic_mem* tic, u8 color)
return tic_tool_peek4(tic->ram.vram.mapping, color & 0xf);
}
static void dmaPixel(tic_mem* tic, s32 x, s32 y, u8 color)
static void setPixelDma(tic_mem* tic, s32 x, s32 y, u8 color)
{
tic_tool_poke4(tic->ram.vram.screen.data, y * TIC80_WIDTH + x, mapColor(tic, color));
}
static void ovrPixel(tic_mem* tic, s32 x, s32 y, u8 color)
static inline u32* getOvrAddr(tic_mem* tic, s32 x, s32 y)
{
tic_machine* machine = (tic_machine*)tic;
enum {Top = (TIC80_FULLHEIGHT-TIC80_HEIGHT)/2};
enum {Left = (TIC80_FULLWIDTH-TIC80_WIDTH)/2};
*(tic->screen + x + (y << TIC80_FULLWIDTH_BITS) + (Left + Top * TIC80_FULLWIDTH)) = *(machine->state.ovr.palette + mapColor(tic, color));
return tic->screen + x + (y << TIC80_FULLWIDTH_BITS) + (Left + Top * TIC80_FULLWIDTH);
}
static void setPixelOvr(tic_mem* tic, s32 x, s32 y, u8 color)
{
tic_machine* machine = (tic_machine*)tic;
*getOvrAddr(tic, x, y) = *(machine->state.ovr.palette + mapColor(tic, color));
}
static u8 getPixelOvr(tic_mem* tic, s32 x, s32 y)
{
tic_machine* machine = (tic_machine*)tic;
u32 color = *getOvrAddr(tic, x, y);
u32* pal = machine->state.ovr.palette;
for(s32 i = 0; i < TIC_PALETTE_SIZE; i++, pal++)
if(*pal == color)
return i;
return 0;
}
static u8 getPixelDma(tic_mem* tic, s32 x, s32 y)
{
tic_machine* machine = (tic_machine*)tic;
return tic_tool_peek4(machine->memory.ram.vram.screen.data, y * TIC80_WIDTH + x);
}
static void setPixel(tic_machine* machine, s32 x, s32 y, u8 color)
{
if(x < machine->state.clip.l || y < machine->state.clip.t || x >= machine->state.clip.r || y >= machine->state.clip.b) return;
machine->state.pixel(&machine->memory, x, y, color);
machine->state.setpix(&machine->memory, x, y, color);
}
static u8 getPixel(tic_machine* machine, s32 x, s32 y)
{
if(x < 0 || y < 0 || x >= TIC80_WIDTH || y >= TIC80_HEIGHT) return 0;
return tic_tool_peek4(machine->memory.ram.vram.screen.data, y * TIC80_WIDTH + x);
return machine->state.getpix(&machine->memory, x, y);
}
static void drawHLine(tic_machine* machine, s32 x, s32 y, s32 width, u8 color)
@ -452,7 +478,8 @@ static void api_reset(tic_mem* memory)
machine->state.scanline = NULL;
machine->state.ovr.callback = NULL;
machine->state.pixel = dmaPixel;
machine->state.setpix = setPixelDma;
machine->state.getpix = getPixelDma;
updateSaveid(memory);
}
@ -1187,7 +1214,8 @@ static void api_tick_start(tic_mem* memory, const tic_sound* src)
else *hold = 0;
}
machine->state.pixel = dmaPixel;
machine->state.setpix = setPixelDma;
machine->state.getpix = getPixelDma;
}
static void api_tick_end(tic_mem* memory)
@ -1212,7 +1240,8 @@ static void api_tick_end(tic_mem* memory)
blip_end_frame(machine->blip, EndTime);
blip_read_samples(machine->blip, machine->memory.samples.buffer, machine->samplerate / TIC_FRAMERATE);
machine->state.pixel = ovrPixel;
machine->state.setpix = setPixelOvr;
machine->state.getpix = getPixelOvr;
memcpy(machine->state.ovr.palette, tic_palette_blit(&memory->cart.palette), sizeof machine->state.ovr.palette);
}