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https://github.com/holub/mame
synced 2025-05-21 21:29:15 +03:00
cobra.c: Implemented simple line drawing. (nw)
This commit is contained in:
Ville Linde
parent
006a639146
commit
89e4cc873e
@ -18,6 +18,11 @@ typedef struct
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poly_vertex v[3];
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} POLYENTRY;
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typedef struct
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{
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poly_vertex v[2];
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} LINEENTRY;
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static int texture_width = 128;
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static int texture_height = 8;
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@ -66,8 +71,10 @@ public:
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poly_manager *poly;
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int polybuffer_ptr;
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int linebuffer_ptr;
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POLYENTRY polybuffer[4096];
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LINEENTRY linebuffer[4096];
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DECLARE_READ64_MEMBER(main_mpc106_r);
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DECLARE_WRITE64_MEMBER(main_mpc106_w);
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DECLARE_READ32_MEMBER(sub_ata_r);
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@ -128,6 +135,44 @@ static void render_texture_scan(void *dest, INT32 scanline, const poly_extent *e
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}
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}
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static void draw_line(bitmap_rgb32 *dest, const rectangle &visarea, LINEENTRY &line)
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{
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int dx = (line.v[1].x - line.v[0].x);
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int dy = (line.v[1].y - line.v[0].y);
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int x1 = line.v[0].x;
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int y1 = line.v[0].y;
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UINT32 color = 0xffffffff; // TODO: where does there color come from?
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if (dx > dy)
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{
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int x = x1;
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for (int i=0; i < abs(dx); i++)
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{
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int y = y1 + (dy * (float)(x - x1) / (float)(dx));
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UINT32 *fb = &dest->pix32(y);
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fb[x] = color;
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x++;
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}
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}
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else
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{
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int y = y1;
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for (int i=0; i < abs(dy); i++)
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{
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int x = x1 + (dx * (float)(y - y1) / (float)(dy));
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UINT32 *fb = &dest->pix32(y);
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fb[x] = color;
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y++;
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}
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}
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}
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static void cobra_video_exit(running_machine *machine)
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{
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@ -161,6 +206,12 @@ SCREEN_UPDATE_RGB32( cobra )
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poly_wait(cobra->poly, "Finished render");
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}
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cobra->polybuffer_ptr = 0;
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for (i=0; i < cobra->linebuffer_ptr; i++)
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{
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draw_line(cobra->framebuffer, screen.machine().primary_screen->visible_area(), cobra->linebuffer[i]);
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}
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cobra->linebuffer_ptr = 0;
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}
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copybitmap_trans(bitmap, *cobra->framebuffer, 0, 0, 0, 0, cliprect, 0);
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@ -435,8 +486,8 @@ static void fifo_flush(int id)
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#define M2SFIFO 2 // main to sub FIFO
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#define S2MFIFO 3 // sub to main FIFO
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#define GFXFIFO_IN_VERBOSE 1
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#define GFXFIFO_OUT_VERBOSE 1
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#define GFXFIFO_IN_VERBOSE 0
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#define GFXFIFO_OUT_VERBOSE 0
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#define M2SFIFO_VERBOSE 0
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#define S2MFIFO_VERBOSE 0
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@ -559,6 +610,14 @@ READ64_MEMBER(cobra_state::main_fifo_r)
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}
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r |= (UINT64)(value & 0xff) << 40;
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/*
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if (fifo_is_empty(S2MFIFO))
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{
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device_spin_until_time(machine().device("subcpu"), attotime::from_usec(80));
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}
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*/
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}
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if (ACCESSING_BITS_32_39)
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{
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@ -759,7 +818,7 @@ READ32_MEMBER(cobra_state::sub_mainbd_r)
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if (fifo_is_empty(M2SFIFO))
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{
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cputag_set_input_line(space.machine(), "subcpu", INPUT_LINE_IRQ0, CLEAR_LINE);
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// cputag_set_input_line(space.machine(), "subcpu", INPUT_LINE_IRQ0, CLEAR_LINE);
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// this is a hack...
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// MAME has a small interrupt latency, which prevents the IRQ bit from being cleared in
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@ -768,6 +827,13 @@ READ32_MEMBER(cobra_state::sub_mainbd_r)
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}
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r |= (value & 0xff) << 24;
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/*
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if (fifo_is_empty(M2SFIFO))
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{
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device_spin_until_time(machine().device("maincpu"), attotime::from_usec(80));
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}
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*/
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}
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if (ACCESSING_BITS_16_23)
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{
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@ -832,7 +898,7 @@ WRITE32_MEMBER(cobra_state::sub_mainbd_w)
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if (!s2mfifo_unk_flag)
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{
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cputag_set_input_line(space.machine(), "subcpu", INPUT_LINE_IRQ1, ASSERT_LINE);
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// cputag_set_input_line(space.machine(), "subcpu", INPUT_LINE_IRQ1, ASSERT_LINE);
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// this is a hack...
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// MAME has a small interrupt latency, which prevents the IRQ bit from being set in
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@ -841,7 +907,7 @@ WRITE32_MEMBER(cobra_state::sub_mainbd_w)
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}
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else
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{
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cputag_set_input_line(space.machine(), "subcpu", INPUT_LINE_IRQ1, CLEAR_LINE);
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// cputag_set_input_line(space.machine(), "subcpu", INPUT_LINE_IRQ1, CLEAR_LINE);
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// this is a hack...
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// MAME has a small interrupt latency, which prevents the IRQ bit from being cleared in
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@ -1057,6 +1123,19 @@ static void push_poly(cobra_state *cobra, poly_vertex *v1, poly_vertex *v2, poly
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}
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}
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static void push_line(cobra_state *cobra, poly_vertex *v1, poly_vertex *v2)
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{
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memcpy(&cobra->linebuffer[cobra->linebuffer_ptr].v[0], v1, sizeof(poly_vertex));
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memcpy(&cobra->linebuffer[cobra->linebuffer_ptr].v[1], v2, sizeof(poly_vertex));
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cobra->linebuffer_ptr++;
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if (cobra->linebuffer_ptr >= 4096)
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{
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logerror("push_line() overflow\n");
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}
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}
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static void cobra_gfx_init(running_machine *machine)
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{
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//gfx_gram = auto_malloc(0x100000);
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@ -1311,7 +1390,7 @@ static void gfx_fifo_exec(cobra_state *cobra)
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return;
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}
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printf("gfxfifo_exec: unhandled %08X %08X\n", w1, w2);
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// make sure the FIFO has fresh data at top...
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fifo_flush(GFXFIFO_OUT);
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@ -1348,6 +1427,33 @@ static void gfx_fifo_exec(cobra_state *cobra)
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push_poly(cobra, &vert[0], &vert[1], &vert[2]);
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push_poly(cobra, &vert[2], &vert[1], &vert[3]);
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}
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else if (w1 == 0xe3400008 && w2 == 0x58c003c1)
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{
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// Draw a batch of lines
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poly_vertex vert[2];
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for (i=0; i < units/2; i++)
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{
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for (int j=0; j < 2; j++)
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{
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UINT64 in;
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? seen values 0x10 and 0x100 (start and end markers?)
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fifo_pop_float(NULL, GFXFIFO_IN, &vert[j].x); // X coord
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fifo_pop_float(NULL, GFXFIFO_IN, &vert[j].y); // Y coord
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 0 so far (Z coord?)
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 1.0f so far
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 1.0f so far
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 1.0f so far
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 1.0f so far
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 1.0f so far
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fifo_pop(NULL, GFXFIFO_IN, &in); // ? only 0 so far
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}
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push_line(cobra, &vert[0], &vert[1]);
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}
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}
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else if (w1 == 0xe0c00003 && w2 == 0x18c003c0)
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{
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// Triangle poly packet?
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@ -1381,6 +1487,8 @@ static void gfx_fifo_exec(cobra_state *cobra)
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}
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else
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{
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printf("gfxfifo_exec: unhandled %08X %08X\n", w1, w2);
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for (i=0; i < num; i+=2)
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{
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UINT64 in3 = 0, in4 = 0;
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@ -1957,32 +2065,25 @@ INPUT_PORTS_END
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// REGION_SOUND1
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//};
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/*
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#if ENABLE_MAIN_CPU
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static ppc_config main_ppc_cfg =
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{
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PPC_MODEL_603EV,
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0x40,
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BUS_FREQUENCY_33MHZ
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};
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#endif
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#if ENABLE_SUB_CPU
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static ppc_config sub_ppc_cfg =
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#if ENABLE_MAIN_CPU
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static powerpc_config main_ppc_cfg =
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{
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PPC_MODEL_403GA
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XTAL_66_6667MHz, /* Multiplier 1.5, Bus = 66MHz, Core = 100MHz */
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NULL,
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NULL
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};
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#endif
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#if ENABLE_GFX_CPU
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static ppc_config gfx_ppc_cfg =
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static powerpc_config gfx_ppc_cfg =
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{
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PPC_MODEL_604,
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0x40,
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BUS_FREQUENCY_33MHZ,
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XTAL_66_6667MHz, /* Multiplier 1.5, Bus = 66MHz, Core = 100MHz */
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NULL,
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NULL
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};
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#endif
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*/
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static void ide_interrupt(int state)
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{
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@ -2015,24 +2116,23 @@ static MACHINE_CONFIG_START( cobra, cobra_state )
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/* basic machine hardware */
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#if ENABLE_MAIN_CPU
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MCFG_CPU_ADD("maincpu", PPC603, 100000000) /* 603EV, 100? MHz */
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//MCFG_CPU_CONFIG(main_ppc_cfg)
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MCFG_CPU_CONFIG(main_ppc_cfg)
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MCFG_CPU_PROGRAM_MAP(cobra_main_map)
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MCFG_CPU_VBLANK_INT("screen", cobra_vblank)
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#endif
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#if ENABLE_SUB_CPU
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MCFG_CPU_ADD("subcpu", PPC403GA, 33000000) /* 403GA, 33? MHz */
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//MCFG_CPU_CONFIG(sub_ppc_cfg)
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MCFG_CPU_PROGRAM_MAP(cobra_sub_map)
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#endif
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#if ENABLE_GFX_CPU
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MCFG_CPU_ADD("gfxcpu", PPC604, 100000000) /* 604, 100? MHz */
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//MCFG_CPU_CONFIG(gfx_ppc_cfg)
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MCFG_CPU_CONFIG(gfx_ppc_cfg)
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MCFG_CPU_PROGRAM_MAP(cobra_gfx_map)
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#endif
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MCFG_QUANTUM_TIME(attotime::from_hz(6000))
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MCFG_QUANTUM_TIME(attotime::from_hz(10000))
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MCFG_MACHINE_RESET( cobra )
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@ -2147,6 +2247,55 @@ static DRIVER_INIT(bujutsu)
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static DRIVER_INIT(racjamdx)
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{
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DRIVER_INIT_CALL(cobra);
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// rom hacks for sub board...
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{
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UINT32 *rom = (UINT32*)machine.root_device().memregion("user2")->base();
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rom[0x62094 / 4] = 0x60000000; // skip hardcheck()...
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rom[0x62ddc / 4] = 0x60000000; // skip lanc_hardcheck()
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// calculate the checksum of the patched rom...
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UINT32 sum = 0;
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for (int i=0; i < 0x20000/4; i++)
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{
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sum += (UINT8)((rom[(0x60000/4)+i] >> 24) & 0xff);
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sum += (UINT8)((rom[(0x60000/4)+i] >> 16) & 0xff);
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sum += (UINT8)((rom[(0x60000/4)+i] >> 8) & 0xff);
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sum += (UINT8)((rom[(0x60000/4)+i] >> 0) & 0xff);
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}
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rom[(0x0007fff0^4) / 4] = ~sum;
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rom[(0x0007fff4^4) / 4] = sum;
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}
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// rom hacks for gfx board...
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{
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int i;
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UINT32 sum = 0;
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UINT32 *rom = (UINT32*)machine.root_device().memregion("user3")->base();
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rom[(0x02448^4) / 4] = 0x60000000; // skip init_raster() for now ...
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rom[(0x01ac8^4) / 4] = 0x60000000; // this op changes SDR1 to 0x7f000000 which breaks page translation
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rom[(0x02438^4) / 4] = 0x60000000; // awfully long delay loop (5000000 * 166)
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// calculate the checksum of the patched rom...
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for (i=0; i < 0x20000/4; i++)
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{
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sum += (UINT8)((rom[i] >> 24) & 0xff);
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sum += (UINT8)((rom[i] >> 16) & 0xff);
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sum += (UINT8)((rom[i] >> 8) & 0xff);
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sum += (UINT8)((rom[i] >> 0) & 0xff);
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}
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rom[(0x0001fff0^4) / 4] = sum;
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rom[(0x0001fff4^4) / 4] = ~sum;
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}
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}
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/*****************************************************************************/
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