2 * (C) GraÅžvydas "notaz" Ignotas, 2011
4 * This work is licensed under the terms of any of these licenses
6 * - GNU GPL, version 2 or later.
7 * - GNU LGPL, version 2.1 or later.
8 * See the COPYING file in the top-level directory.
14 extern const unsigned char cmd_lengths[256];
15 #define command_lengths cmd_lengths
17 static unsigned int *ex_regs;
18 static int initialized;
21 #define SET_Ex(r, v) \
24 #include "psx_gpu/psx_gpu.c"
25 #include "psx_gpu/psx_gpu_parse.c"
26 #include "../gpulib/gpu.h"
28 static psx_gpu_struct egpu __attribute__((aligned(256)));
30 int do_cmd_list(uint32_t *list, int count, int *last_cmd)
34 if (gpu.state.enhancement_active)
35 ret = gpu_parse_enhanced(&egpu, list, count * 4, (u32 *)last_cmd);
37 ret = gpu_parse(&egpu, list, count * 4, (u32 *)last_cmd);
40 ex_regs[1] |= egpu.texture_settings & 0x1ff;
44 #define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096 * 2)
46 static uint16_t *get_enhancement_bufer(int *x, int *y, int *w, int *h,
49 uint16_t *ret = select_enhancement_buf_ptr(&egpu, *x);
59 static void map_enhancement_buffer(void)
61 // currently we use 4x 1024*1024 buffers instead of single 2048*1024
62 // to be able to reuse 1024-width code better (triangle setup,
63 // dithering phase, lines).
64 egpu.enhancement_buf_ptr = gpu.mmap(ENHANCEMENT_BUF_SIZE);
65 if (egpu.enhancement_buf_ptr == NULL) {
66 fprintf(stderr, "failed to map enhancement buffer\n");
67 gpu.get_enhancement_bufer = NULL;
70 egpu.enhancement_buf_ptr += 4096 / 2;
71 gpu.get_enhancement_bufer = get_enhancement_bufer;
75 int renderer_init(void)
77 if (gpu.vram != NULL) {
78 initialize_psx_gpu(&egpu, gpu.vram);
82 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
83 map_enhancement_buffer();
85 ex_regs = gpu.ex_regs;
89 void renderer_finish(void)
91 if (egpu.enhancement_buf_ptr != NULL) {
92 egpu.enhancement_buf_ptr -= 4096 / 2;
93 gpu.munmap(egpu.enhancement_buf_ptr, ENHANCEMENT_BUF_SIZE);
95 egpu.enhancement_buf_ptr = NULL;
96 egpu.enhancement_current_buf_ptr = NULL;
100 static __attribute__((noinline)) void
101 sync_enhancement_buffers(int x, int y, int w, int h)
103 const int step_x = 1024 / sizeof(egpu.enhancement_buf_by_x16);
107 w += x & (step_x - 1);
109 w = (w + step_x - 1) & ~(step_x - 1);
114 fb_index = egpu.enhancement_buf_by_x16[x / step_x];
115 for (w1 = 0; w > 0; w1++, w -= step_x)
116 if (fb_index != egpu.enhancement_buf_by_x16[x / step_x + w1])
119 src = gpu.vram + y * 1024 + x;
120 dst = select_enhancement_buf_ptr(&egpu, x);
121 dst += (y * 1024 + x) * 2;
122 scale2x_tiles8(dst, src, w1 * step_x / 8, h);
128 void renderer_sync_ecmds(uint32_t *ecmds)
130 gpu_parse(&egpu, ecmds + 1, 6 * 4, NULL);
133 void renderer_update_caches(int x, int y, int w, int h)
135 update_texture_cache_region(&egpu, x, y, x + w - 1, y + h - 1);
136 if (gpu.state.enhancement_active && !gpu.status.rgb24)
137 sync_enhancement_buffers(x, y, w, h);
140 void renderer_flush_queues(void)
142 flush_render_block_buffer(&egpu);
145 void renderer_set_interlace(int enable, int is_odd)
147 egpu.render_mode &= ~(RENDER_INTERLACE_ENABLED|RENDER_INTERLACE_ODD);
149 egpu.render_mode |= RENDER_INTERLACE_ENABLED;
151 egpu.render_mode |= RENDER_INTERLACE_ODD;
154 void renderer_notify_res_change(void)
156 // note: must keep it multiple of 8
157 if (egpu.enhancement_x_threshold != gpu.screen.hres)
159 egpu.enhancement_x_threshold = gpu.screen.hres;
160 update_enhancement_buf_table_from_hres(&egpu);
164 #include "../../frontend/plugin_lib.h"
166 void renderer_set_config(const struct rearmed_cbs *cbs)
168 static int enhancement_was_on;
170 disable_main_render = cbs->gpu_neon.enhancement_no_main;
171 if (egpu.enhancement_buf_ptr != NULL && cbs->gpu_neon.enhancement_enable
172 && !enhancement_was_on)
174 sync_enhancement_buffers(0, 0, 1024, 512);
176 enhancement_was_on = cbs->gpu_neon.enhancement_enable;
179 initialize_psx_gpu(&egpu, gpu.vram);
183 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
184 map_enhancement_buffer();
185 if (cbs->pl_set_gpu_caps)
186 cbs->pl_set_gpu_caps(GPU_CAP_SUPPORTS_2X);
188 egpu.use_dithering = cbs->gpu_neon.allow_dithering;
189 if(!egpu.use_dithering) {
190 egpu.dither_table[0] = dither_table_row(0, 0, 0, 0);
191 egpu.dither_table[1] = dither_table_row(0, 0, 0, 0);
192 egpu.dither_table[2] = dither_table_row(0, 0, 0, 0);
193 egpu.dither_table[3] = dither_table_row(0, 0, 0, 0);
195 egpu.dither_table[0] = dither_table_row(-4, 0, -3, 1);
196 egpu.dither_table[1] = dither_table_row(2, -2, 3, -1);
197 egpu.dither_table[2] = dither_table_row(-3, 1, -4, 0);
198 egpu.dither_table[3] = dither_table_row(3, -1, 2, -2);