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 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
16 #define min(a, b) ((a) < (b) ? (a) : (b))
19 #define max(a, b) ((a) > (b) ? (a) : (b))
22 extern const unsigned char cmd_lengths[256];
23 #define command_lengths cmd_lengths
25 static unsigned int *ex_regs;
26 static int initialized;
29 #define SET_Ex(r, v) \
32 static __attribute__((noinline)) void
33 sync_enhancement_buffers(int x, int y, int w, int h);
35 #include "../gpulib/gpu.h"
36 #include "psx_gpu/psx_gpu.c"
37 #include "psx_gpu/psx_gpu_parse.c"
39 static psx_gpu_struct egpu __attribute__((aligned(256)));
41 int do_cmd_list(uint32_t *list, int count, int *last_cmd)
45 #if defined(__arm__) && defined(NEON_BUILD) && !defined(SIMD_BUILD)
46 // the asm doesn't bother to save callee-save vector regs, so do it here
47 __asm__ __volatile__("":::"q4","q5","q6","q7");
50 if (gpu.state.enhancement_active)
51 ret = gpu_parse_enhanced(&egpu, list, count * 4, (u32 *)last_cmd);
53 ret = gpu_parse(&egpu, list, count * 4, (u32 *)last_cmd);
55 #if defined(__arm__) && defined(NEON_BUILD) && !defined(SIMD_BUILD)
56 __asm__ __volatile__("":::"q4","q5","q6","q7");
60 ex_regs[1] |= egpu.texture_settings & 0x1ff;
64 #define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096 * 2)
66 static void *get_enhancement_bufer(int *x, int *y, int *w, int *h,
69 uint16_t *ret = select_enhancement_buf_ptr(&egpu, *x, *y);
81 static void map_enhancement_buffer(void)
83 // currently we use 4x 1024*1024 buffers instead of single 2048*1024
84 // to be able to reuse 1024-width code better (triangle setup,
85 // dithering phase, lines).
86 egpu.enhancement_buf_ptr = gpu.mmap(ENHANCEMENT_BUF_SIZE);
87 if (egpu.enhancement_buf_ptr == NULL) {
88 fprintf(stderr, "failed to map enhancement buffer\n");
89 gpu.get_enhancement_bufer = NULL;
92 egpu.enhancement_buf_ptr += 4096 / 2;
93 gpu.get_enhancement_bufer = get_enhancement_bufer;
97 int renderer_init(void)
99 if (gpu.vram != NULL) {
100 initialize_psx_gpu(&egpu, gpu.vram);
104 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
105 map_enhancement_buffer();
107 ex_regs = gpu.ex_regs;
111 void renderer_finish(void)
113 if (egpu.enhancement_buf_ptr != NULL) {
114 egpu.enhancement_buf_ptr -= 4096 / 2;
115 gpu.munmap(egpu.enhancement_buf_ptr, ENHANCEMENT_BUF_SIZE);
117 egpu.enhancement_buf_ptr = NULL;
118 egpu.enhancement_current_buf_ptr = NULL;
122 static __attribute__((noinline)) void
123 sync_enhancement_buffers(int x, int y, int w, int h)
125 int i, right = x + w, bottom = y + h;
126 const u16 *src = gpu.vram;
127 // use these because the scanout struct may hold reduced w, h
128 // due to intersection stuff, see the update_enhancement_buf_scanouts() mess
129 int s_w = max(gpu.screen.hres, gpu.screen.w);
130 int s_h = gpu.screen.vres;
132 for (i = 0; i < ARRAY_SIZE(egpu.enhancement_scanouts); i++) {
133 const struct psx_gpu_scanout *s = &egpu.enhancement_scanouts[i];
134 u16 *dst = select_enhancement_buf_by_index(&egpu, i);
136 if (s->w == 0) continue;
137 if (s->x >= right) continue;
138 if (s->x + s_w <= x) continue;
139 if (s->y >= bottom) continue;
140 if (s->y + s_h <= y) continue;
142 x2 = min(right, s->x + s_w);
144 y2 = min(bottom, s->y + s_h);
145 scale2x_tiles8(dst + y1 * 1024*2 + x1 * 2,
146 src + y1 * 1024 + x1, (x2 - x1 + 7) / 8u, y2 - y1);
150 void renderer_sync_ecmds(uint32_t *ecmds)
152 gpu_parse(&egpu, ecmds + 1, 6 * 4, NULL);
155 void renderer_update_caches(int x, int y, int w, int h, int state_changed)
157 update_texture_cache_region(&egpu, x, y, x + w - 1, y + h - 1);
159 if (gpu.state.enhancement_active) {
161 memset(egpu.enhancement_scanouts, 0, sizeof(egpu.enhancement_scanouts));
162 egpu.enhancement_scanout_eselect = 0;
163 update_enhancement_buf_scanouts(&egpu,
164 gpu.screen.src_x, gpu.screen.src_y, gpu.screen.hres, gpu.screen.vres);
167 sync_enhancement_buffers(x, y, w, h);
171 void renderer_flush_queues(void)
173 flush_render_block_buffer(&egpu);
176 void renderer_set_interlace(int enable, int is_odd)
178 egpu.render_mode &= ~(RENDER_INTERLACE_ENABLED|RENDER_INTERLACE_ODD);
180 egpu.render_mode |= RENDER_INTERLACE_ENABLED;
182 egpu.render_mode |= RENDER_INTERLACE_ODD;
185 void renderer_notify_res_change(void)
187 renderer_notify_scanout_change(gpu.screen.src_x, gpu.screen.src_y);
190 void renderer_notify_scanout_change(int x, int y)
192 if (!gpu.state.enhancement_active || !egpu.enhancement_buf_ptr)
195 update_enhancement_buf_scanouts(&egpu, x, y, gpu.screen.hres, gpu.screen.vres);
198 #include "../../frontend/plugin_lib.h"
200 void renderer_set_config(const struct rearmed_cbs *cbs)
203 initialize_psx_gpu(&egpu, gpu.vram);
206 if (cbs->pl_set_gpu_caps)
207 cbs->pl_set_gpu_caps(GPU_CAP_SUPPORTS_2X);
209 egpu.use_dithering = cbs->gpu_neon.allow_dithering;
210 if(!egpu.use_dithering) {
211 egpu.dither_table[0] = dither_table_row(0, 0, 0, 0);
212 egpu.dither_table[1] = dither_table_row(0, 0, 0, 0);
213 egpu.dither_table[2] = dither_table_row(0, 0, 0, 0);
214 egpu.dither_table[3] = dither_table_row(0, 0, 0, 0);
216 egpu.dither_table[0] = dither_table_row(-4, 0, -3, 1);
217 egpu.dither_table[1] = dither_table_row(2, -2, 3, -1);
218 egpu.dither_table[2] = dither_table_row(-3, 1, -4, 0);
219 egpu.dither_table[3] = dither_table_row(3, -1, 2, -2);
222 disable_main_render = cbs->gpu_neon.enhancement_no_main;
223 if (gpu.state.enhancement_enable) {
224 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
225 map_enhancement_buffer();
229 void renderer_sync(void)
233 void renderer_notify_update_lace(int updated)
237 // vim:ts=2:sw=2:expandtab