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-rw-r--r--blastem.c50
-rw-r--r--render.h10
-rw-r--r--render_sdl.c329
3 files changed, 242 insertions, 147 deletions
diff --git a/blastem.c b/blastem.c
index dfa950d..e05e9d2 100644
--- a/blastem.c
+++ b/blastem.c
@@ -50,7 +50,7 @@ int load_smd_rom(long filesize, FILE * f)
uint8_t block[SMD_BLOCK_SIZE];
filesize -= SMD_HEADER_SIZE;
fseek(f, SMD_HEADER_SIZE, SEEK_SET);
-
+
uint16_t * dst = cart;
while (filesize > 0) {
fread(block, 1, SMD_BLOCK_SIZE, f);
@@ -137,15 +137,15 @@ void adjust_int_cycle(m68k_context * context, vdp_context * v_context)
if (next_hint < context->int_cycle) {
context->int_cycle = next_hint;
context->int_num = 4;
-
+
}
}
}
}
context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
- /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n",
- context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7),
+ /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n",
+ context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7),
v_context->regs[REG_MODE_2] & 0x20, v_context->regs[REG_MODE_1] & 0x10, v_context->hint_counter, v_context->regs[REG_HINT], v_context->cycles / MCLKS_LINE);*/
}
@@ -197,7 +197,7 @@ void sync_sound(genesis_context * gen, uint32_t target)
//printf("YM | Cycle: %d, bpos: %d, PSG | Cycle: %d, bpos: %d\n", gen->ym->current_cycle, gen->ym->buffer_pos, gen->psg->cycles, gen->psg->buffer_pos * 2);
psg_run(gen->psg, target);
ym_run(gen->ym, target);
-
+
//printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2);
}
@@ -219,7 +219,7 @@ m68k_context * sync_components(m68k_context * context, uint32_t address)
}
//printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks);
vdp_run_context(v_context, mclks_per_frame);
-
+
if (!headless) {
break_on_sync |= wait_render_frame(v_context, frame_limit);
}
@@ -496,7 +496,7 @@ m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value
}
if (value & 1) {
dputs("bus requesting Z80");
-
+
if(!reset && !busreq) {
busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY;
new_busack = Z80_REQ_ACK;
@@ -518,7 +518,7 @@ m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value
}
//busack_cycle = CYCLE_NEVER;
//busack = Z80_REQ_BUSY;
-
+
}
} else if (location == 0x1200) {
sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K);
@@ -1433,7 +1433,7 @@ m68k_context * debugger(m68k_context * context, uint32_t address)
//Z80 debug commands
switch(input_buf[1])
{
- case 'b':
+ case 'b':
param = find_param(input_buf);
if (!param) {
fputs("zb command requires a parameter\n", stderr);
@@ -1552,7 +1552,7 @@ uint8_t z80_load_gst(z80_context * context, FILE * gstfile)
context->flags[ZF_Z] = f & 1;
f >>= 1;
context->flags[ZF_S] = f;
-
+
context->regs[Z80_A] = *curpos;
curpos += 3;
for (int reg = Z80_C; reg <= Z80_IYH; reg++) {
@@ -1640,7 +1640,7 @@ uint32_t load_gst(genesis_context * gen, char * fname)
adjust_int_cycle(gen->m68k, gen->vdp);
fclose(gstfile);
return pc;
-
+
error_close:
fclose(gstfile);
error:
@@ -1658,7 +1658,7 @@ error:
const memmap_chunk static_map[] = {
{0, 0x400000, 0xFFFFFF, 0, MMAP_READ, cart,
NULL, NULL, NULL, NULL},
- {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram,
+ {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram,
NULL, NULL, NULL, NULL},
{0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL,
(read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write,
@@ -1711,7 +1711,7 @@ void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * s
memmap[0].mask = 0xFFFFFF;
memmap[0].flags = MMAP_READ;
memmap[0].buffer = cart;
-
+
ram_start &= 0xFFFFFE;
ram_end |= 1;
memmap[1].start = ram_start;
@@ -1728,7 +1728,7 @@ void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * s
size /= 2;
}
memmap[1].buffer = gen->save_ram = malloc(size);
-
+
memcpy(memmap+2, static_map+1, sizeof(static_map)-sizeof(static_map[0]));
num_chunks = sizeof(static_map)/sizeof(memmap_chunk)+1;
} else {
@@ -1737,7 +1737,7 @@ void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * s
memmap[0].mask = 0xFFFFFF;
memmap[0].flags = MMAP_READ;
memmap[0].buffer = cart;
-
+
memmap[1].start = 0x200000;
memmap[1].end = 0x400000;
memmap[1].mask = 0x1FFFFF;
@@ -1757,7 +1757,7 @@ void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * s
memmap[num_chunks].end = 0xA13100;
memmap[num_chunks].mask = 0xFF;
memmap[num_chunks].write_16 = (write_16_fun)write_bank_reg_w;
- memmap[num_chunks].write_8 = (write_8_fun)write_bank_reg_b;
+ memmap[num_chunks].write_8 = (write_8_fun)write_bank_reg_b;
num_chunks++;
ram_end++;
size = ram_end-ram_start;
@@ -1786,7 +1786,7 @@ void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * s
init_x86_68k_opts(&opts, memmap, num_chunks);
opts.address_log = address_log;
init_68k_context(&context, opts.native_code_map, &opts);
-
+
context.video_context = gen->vdp;
context.system = gen;
//cartridge ROM
@@ -1958,18 +1958,18 @@ int main(int argc, char ** argv)
fps = 50;
}
if (!headless) {
- render_init(width, height, title, fps);
+ render_init(width, height, title, fps, 0);
}
vdp_context v_context;
-
+
init_vdp_context(&v_context);
-
+
ym2612_context y_context;
ym_init(&y_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_YM, render_audio_buffer(), ym_log ? YM_OPT_WAVE_LOG : 0);
-
+
psg_context p_context;
psg_init(&p_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_PSG, render_audio_buffer());
-
+
z80_context z_context;
x86_z80_options z_opts;
init_x86_z80_opts(&z_opts);
@@ -1983,13 +1983,13 @@ int main(int argc, char ** argv)
z_context.sync_cycle = z_context.target_cycle = mclks_per_frame/MCLKS_PER_Z80;
z_context.int_cycle = CYCLE_NEVER;
z_context.mem_pointers[1] = z_context.mem_pointers[2] = (uint8_t *)cart;
-
+
gen.z80 = &z_context;
gen.vdp = &v_context;
gen.ym = &y_context;
gen.psg = &p_context;
genesis = &gen;
-
+
int fname_size = strlen(argv[1]);
sram_filename = malloc(fname_size+6);
memcpy(sram_filename, argv[1], fname_size);
@@ -2004,7 +2004,7 @@ int main(int argc, char ** argv)
strcpy(sram_filename + fname_size, ".sram");
}
set_keybindings();
-
+
init_run_cpu(&gen, debug, address_log, statefile);
return 0;
}
diff --git a/render.h b/render.h
index 24456be..339dd36 100644
--- a/render.h
+++ b/render.h
@@ -4,9 +4,17 @@
#include "vdp.h"
#include "psg.h"
#include "ym2612.h"
+
+typedef struct {
+ void *oddbuf;
+ void *evenbuf;
+ int stride;
+} surface_info;
+
uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b);
+surface_info render_alloc_surfaces();
uint8_t render_depth();
-void render_init(int width, int height, char * title, uint32_t fps);
+void render_init(int width, int height, char * title, uint32_t fps, uint8_t use_gl);
void render_context(vdp_context * context);
void render_wait_quit(vdp_context * context);
void render_wait_psg(psg_context * context);
diff --git a/render_sdl.c b/render_sdl.c
index 5fbf518..b70a373 100644
--- a/render_sdl.c
+++ b/render_sdl.c
@@ -4,9 +4,14 @@
#include "blastem.h"
#include "io.h"
+#ifndef DISABLE_OPENGL
+#include <GL/gl.h>
+#endif
+
SDL_Surface *screen;
uint8_t render_dbg = 0;
uint8_t debug_pal = 0;
+uint8_t render_gl;
uint32_t last_frame = 0;
@@ -75,7 +80,54 @@ int num_joysticks;
uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b)
{
- return SDL_MapRGB(screen->format, r, g, b);
+ if (render_gl) {
+ return b << 24 | g << 16 | r << 8 | 255;
+ } else {
+ return SDL_MapRGB(screen->format, r, g, b);
+ }
+}
+
+GLuint textures[3], buffers[2];
+
+const GLfloat vertex_data[] = {
+ -1.0f, -1.0f,
+ 1.0f, -1.0f,
+ -1.0f, 1.0f,
+ 1.0f, 1.0f
+};
+
+const GLushort element_data[] = {0, 1, 2, 3};
+
+void render_alloc_surfaces(vdp_context * context)
+{
+ if (render_gl) {
+ context->oddbuf = context->framebuf = malloc(320 * 240 * 4 * 2);
+ memset(context->oddbuf, 0, 320 * 240 * 4 * 2);
+ context->evenbuf = ((char *)context->oddbuf) + 320 * 240 * 4;
+ glGenTextures(3, textures);
+ for (int i = 0; i < 3; i++)
+ {
+ glBindTexture(GL_TEXTURE_2D, textures[i]);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ if (i < 2) {
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8​, 512, 256, 0, GL_BGRA, GL_UNSIGNED_BYTE, i ? context->evenbuf : context->oddbuf);
+ } else {
+ uint32_t blank = 255;
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 1, 1, 0, GL_BGRA, GL_UNSIGNED_BYTE, &blank);
+ }
+ }
+ glGenBuffers(2, buffers);
+ glBindBuffer(GL_ARRAY_BUFFER, buffers[0]);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buffers[0]);
+ glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(element_data), element_data, GL_STATIC_DRAW);
+ } else {
+ context->oddbuf = context->framebuf = malloc(320 * 240 * screen->format->BytesPerPixel * 2);
+ context->evenbuf = ((char *)context->oddbuf) + 320 * 240 * screen->format->BytesPerPixel;
+ }
}
uint8_t render_depth()
@@ -83,74 +135,104 @@ uint8_t render_depth()
return screen->format->BytesPerPixel * 8;
}
-void render_init(int width, int height, char * title, uint32_t fps)
+void render_init(int width, int height, char * title, uint32_t fps, uint8_t use_gl)
{
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK) < 0) {
- fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
- exit(1);
- }
- atexit(SDL_Quit);
- atexit(render_close_audio);
- printf("width: %d, height: %d\n", width, height);
- screen = SDL_SetVideoMode(width, height, 32, SDL_SWSURFACE | SDL_ANYFORMAT);
- if (!screen) {
- fprintf(stderr, "Unable to get SDL surface: %s\n", SDL_GetError());
- exit(1);
- }
- if (screen->format->BytesPerPixel != 2 && screen->format->BytesPerPixel != 4) {
- fprintf(stderr, "BlastEm requires a 16-bit or 32-bit surface, SDL returned a %d-bit surface\n", screen->format->BytesPerPixel * 8);
- exit(1);
- }
- SDL_WM_SetCaption(title, title);
- min_delay = 0;
- for (int i = 0; i < 100; i++) {
- uint32_t start = SDL_GetTicks();
- SDL_Delay(1);
- uint32_t delay = SDL_GetTicks()-start;
- if (delay > min_delay) {
- min_delay = delay;
- }
- }
- if (!min_delay) {
- min_delay = 1;
- }
- printf("minimum delay: %d\n", min_delay);
-
- frame_delay = 1000/fps;
-
- audio_mutex = SDL_CreateMutex();
- psg_cond = SDL_CreateCond();
- ym_cond = SDL_CreateCond();
- audio_ready = SDL_CreateCond();
-
- SDL_AudioSpec desired, actual;
- desired.freq = 48000;
- desired.format = AUDIO_S16SYS;
- desired.channels = 2;
- desired.samples = 2048;//1024;
- desired.callback = audio_callback;
- desired.userdata = NULL;
-
- if (SDL_OpenAudio(&desired, &actual) < 0) {
- fprintf(stderr, "Unable to open SDL audio: %s\n", SDL_GetError());
- exit(1);
- }
- buffer_samples = actual.samples;
- sample_rate = actual.freq;
- printf("Initialized audio at frequency %d with a %d sample buffer\n", actual.freq, actual.samples);
- SDL_PauseAudio(0);
- num_joysticks = SDL_NumJoysticks();
- if (num_joysticks > MAX_JOYSTICKS) {
- num_joysticks = MAX_JOYSTICKS;
- }
- for (int i = 0; i < num_joysticks; i++) {
- printf("Joystick %d: %s\n", i, SDL_JoystickName(i));
- SDL_Joystick * joy = joysticks[i] = SDL_JoystickOpen(i);
- if (joy) {
- printf("\tNum Axes: %d\n\tNum Buttons: %d\n\tNum Hats: %d\n", SDL_JoystickNumAxes(joy), SDL_JoystickNumButtons(joy), SDL_JoystickNumHats(joy));
- }
- }
- SDL_JoystickEventState(SDL_ENABLE);
+ fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
+ exit(1);
+ }
+ atexit(SDL_Quit);
+ atexit(render_close_audio);
+ printf("width: %d, height: %d\n", width, height);
+ uint32_t flags
+#ifndef DISABLE_OPENGL
+ if (use_gl)
+ {
+ SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
+ SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
+ SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
+ SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
+ SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+ flags = SDL_OPENGL;
+ } else {
+#else
+ {
+#endif
+ flags = SDL_SWSURFACE | SDL_ANYFORMAT;
+ }
+ screen = SDL_SetVideoMode(width, height, 32, flags);
+ if (!screen) {
+ fprintf(stderr, "Unable to get SDL surface: %s\n", SDL_GetError());
+ exit(1);
+ }
+ if (!use_gl && screen->format->BytesPerPixel != 2 && screen->format->BytesPerPixel != 4) {
+ fprintf(stderr, "BlastEm requires a 16-bit or 32-bit surface, SDL returned a %d-bit surface\n", screen->format->BytesPerPixel * 8);
+ exit(1);
+ }
+#ifndef DISABLE_OPENGL
+ //TODO: Fallback to plain SDL if OpenGL 2.0 not available
+ render_gl = use_gl;
+#endif
+ SDL_WM_SetCaption(title, title);
+ min_delay = 0;
+ for (int i = 0; i < 100; i++) {
+ uint32_t start = SDL_GetTicks();
+ SDL_Delay(1);
+ uint32_t delay = SDL_GetTicks()-start;
+ if (delay > min_delay) {
+ min_delay = delay;
+ }
+ }
+ if (!min_delay) {
+ min_delay = 1;
+ }
+ printf("minimum delay: %d\n", min_delay);
+
+ frame_delay = 1000/fps;
+
+ audio_mutex = SDL_CreateMutex();
+ psg_cond = SDL_CreateCond();
+ ym_cond = SDL_CreateCond();
+ audio_ready = SDL_CreateCond();
+
+ SDL_AudioSpec desired, actual;
+ desired.freq = 48000;
+ desired.format = AUDIO_S16SYS;
+ desired.channels = 2;
+ desired.samples = 2048;//1024;
+ desired.callback = audio_callback;
+ desired.userdata = NULL;
+
+ if (SDL_OpenAudio(&desired, &actual) < 0) {
+ fprintf(stderr, "Unable to open SDL audio: %s\n", SDL_GetError());
+ exit(1);
+ }
+ buffer_samples = actual.samples;
+ sample_rate = actual.freq;
+ printf("Initialized audio at frequency %d with a %d sample buffer\n", actual.freq, actual.samples);
+ SDL_PauseAudio(0);
+ num_joysticks = SDL_NumJoysticks();
+ if (num_joysticks > MAX_JOYSTICKS) {
+ num_joysticks = MAX_JOYSTICKS;
+ }
+ for (int i = 0; i < num_joysticks; i++) {
+ printf("Joystick %d: %s\n", i, SDL_JoystickName(i));
+ SDL_Joystick * joy = joysticks[i] = SDL_JoystickOpen(i);
+ if (joy) {
+ printf("\tNum Axes: %d\n\tNum Buttons: %d\n\tNum Hats: %d\n", SDL_JoystickNumAxes(joy), SDL_JoystickNumButtons(joy), SDL_JoystickNumHats(joy));
+ }
+ }
+ SDL_JoystickEventState(SDL_ENABLE);
+}
+
+void render_context_gl(vdp_context * context)
+{
+ glBindTexture(GL_TEXTURE_2D, textures[context->framebuf == context->oddbuf ? 0 : 1]);
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 320, 240, GL_BGRA, GL_UNSIGNED_BYTE, context->framebuf);;
+
+ glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+ glClear(GL_COLOR_BUFFER_BIT);
+
}
uint32_t blankbuf[320*240];
@@ -158,64 +240,69 @@ uint32_t blankbuf[320*240];
void render_context(vdp_context * context)
{
uint16_t *buf_16;
- uint32_t *buf_32;
+ uint32_t *buf_32;
uint8_t b,g,r;
last_frame = SDL_GetTicks();
+ if (render_gl)
+ {
+ render_context_gl(context);
+ return;
+ }
if (SDL_MUSTLOCK(screen)) {
if (SDL_LockSurface(screen) < 0) {
return;
}
- }
- uint16_t repeat_x = screen->clip_rect.w / 320;
- uint16_t repeat_y = screen->clip_rect.h / 240;
- if (repeat_x > repeat_y) {
- repeat_x = repeat_y;
- } else {
- repeat_y = repeat_x;
- }
- int othermask = repeat_y >> 1;
-
- if (screen->format->BytesPerPixel == 2) {
- uint16_t *otherbuf = (context->regs[REG_MODE_4] & BIT_INTERLACE) ? context->evenbuf : (uint16_t *)blankbuf;
- uint16_t * oddbuf = context->oddbuf;
- buf_16 = (uint16_t *)screen->pixels;
- for (int y = 0; y < 240; y++) {
- for (int i = 0; i < repeat_y; i++,buf_16 += screen->pitch/2) {
- uint16_t *line = buf_16;
- uint16_t *src_line = (i & othermask ? otherbuf : oddbuf) + y * 320;
- for (int x = 0; x < 320; x++) {
- uint16_t color = *(src_line++);
- for (int j = 0; j < repeat_x; j++) {
- *(line++) = color;
- }
- }
- }
- }
- } else {
- uint32_t *otherbuf = (context->regs[REG_MODE_4] & BIT_INTERLACE) ? context->evenbuf : (uint32_t *)blankbuf;
- uint32_t * oddbuf = context->oddbuf;
- buf_32 = (uint32_t *)screen->pixels;
- for (int y = 0; y < 240; y++) {
- for (int i = 0; i < repeat_y; i++,buf_32 += screen->pitch/4) {
- uint32_t *line = buf_32;
- uint32_t *src_line = (i & othermask ? otherbuf : oddbuf) + y * 320;
- for (int x = 0; x < 320; x++) {
- uint32_t color = *(src_line++);
- for (int j = 0; j < repeat_x; j++) {
- *(line++) = color;
- }
- }
- }
- }
- }
- if ( SDL_MUSTLOCK(screen) ) {
- SDL_UnlockSurface(screen);
- }
- SDL_UpdateRect(screen, 0, 0, screen->clip_rect.w, screen->clip_rect.h);
- if (context->regs[REG_MODE_4] & BIT_INTERLACE)
- {
- context->framebuf = context->framebuf == context->oddbuf ? context->evenbuf : context->oddbuf;
- }
+ }
+ uint16_t repeat_x = screen->clip_rect.w / 320;
+ uint16_t repeat_y = screen->clip_rect.h / 240;
+ if (repeat_x > repeat_y) {
+ repeat_x = repeat_y;
+ } else {
+ repeat_y = repeat_x;
+ }
+ int othermask = repeat_y >> 1;
+
+ if (screen->format->BytesPerPixel == 2) {
+ uint16_t *otherbuf = (context->regs[REG_MODE_4] & BIT_INTERLACE) ? context->evenbuf : (uint16_t *)blankbuf;
+ uint16_t * oddbuf = context->oddbuf;
+ buf_16 = (uint16_t *)screen->pixels;
+ for (int y = 0; y < 240; y++) {
+ for (int i = 0; i < repeat_y; i++,buf_16 += screen->pitch/2) {
+ uint16_t *line = buf_16;
+ uint16_t *src_line = (i & othermask ? otherbuf : oddbuf) + y * 320;
+ for (int x = 0; x < 320; x++) {
+ uint16_t color = *(src_line++);
+ for (int j = 0; j < repeat_x; j++) {
+ *(line++) = color;
+ }
+ }
+ }
+ }
+ } else {
+ uint32_t *otherbuf = (context->regs[REG_MODE_4] & BIT_INTERLACE) ? context->evenbuf : (uint32_t *)blankbuf;
+ uint32_t * oddbuf = context->oddbuf;
+ buf_32 = (uint32_t *)screen->pixels;
+ for (int y = 0; y < 240; y++) {
+ for (int i = 0; i < repeat_y; i++,buf_32 += screen->pitch/4) {
+ uint32_t *line = buf_32;
+ uint32_t *src_line = (i & othermask ? otherbuf : oddbuf) + y * 320;
+ for (int x = 0; x < 320; x++) {
+ uint32_t color = *(src_line++);
+ for (int j = 0; j < repeat_x; j++) {
+ *(line++) = color;
+ }
+ }
+ }
+ }
+ }
+ if ( SDL_MUSTLOCK(screen) ) {
+ SDL_UnlockSurface(screen);
+ }
+ SDL_UpdateRect(screen, 0, 0, screen->clip_rect.w, screen->clip_rect.h);
+ if (context->regs[REG_MODE_4] & BIT_INTERLACE)
+ {
+ context->framebuf = context->framebuf == context->oddbuf ? context->evenbuf : context->oddbuf;
+ }
}
int render_joystick_num_buttons(int joystick)
@@ -321,8 +408,8 @@ int wait_render_frame(vdp_context * context, int frame_limit)
}
}
render_context(context);
-
-
+
+
//TODO: Figure out why this causes segfaults
/*frame_counter++;
if ((last_frame - start) > 1000) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-19 21:59:15 +0000