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.
15 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
17 #define min(a, b) ((a) < (b) ? (a) : (b))
20 #define max(a, b) ((a) > (b) ? (a) : (b))
23 extern const unsigned char cmd_lengths[256];
24 #define command_lengths cmd_lengths
26 static unsigned int *ex_regs;
27 static int initialized;
30 #define SET_Ex(r, v) \
33 static __attribute__((noinline)) void
34 sync_enhancement_buffers(int x, int y, int w, int h);
36 #include "../gpulib/gpu.h"
37 #include "psx_gpu/psx_gpu.c"
38 #include "psx_gpu/psx_gpu_parse.c"
40 static psx_gpu_struct egpu __attribute__((aligned(256)));
42 int do_cmd_list(uint32_t *list, int count, int *last_cmd)
46 #if defined(__arm__) && defined(NEON_BUILD) && !defined(SIMD_BUILD)
47 // the asm doesn't bother to save callee-save vector regs, so do it here
48 __asm__ __volatile__("":::"q4","q5","q6","q7");
51 if (gpu.state.enhancement_active)
52 ret = gpu_parse_enhanced(&egpu, list, count * 4, (u32 *)last_cmd);
54 ret = gpu_parse(&egpu, list, count * 4, (u32 *)last_cmd);
56 #if defined(__arm__) && defined(NEON_BUILD) && !defined(SIMD_BUILD)
57 __asm__ __volatile__("":::"q4","q5","q6","q7");
61 ex_regs[1] |= egpu.texture_settings & 0x1ff;
65 #define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096 * 2)
67 static void *get_enhancement_bufer(int *x, int *y, int *w, int *h,
70 uint16_t *ret = select_enhancement_buf_ptr(&egpu, *x, *y);
82 static void map_enhancement_buffer(void)
84 // currently we use 4x 1024*1024 buffers instead of single 2048*1024
85 // to be able to reuse 1024-width code better (triangle setup,
86 // dithering phase, lines).
87 egpu.enhancement_buf_ptr = gpu.mmap(ENHANCEMENT_BUF_SIZE);
88 if (egpu.enhancement_buf_ptr == NULL) {
89 fprintf(stderr, "failed to map enhancement buffer\n");
90 gpu.get_enhancement_bufer = NULL;
93 egpu.enhancement_buf_ptr += 4096 / 2;
94 gpu.get_enhancement_bufer = get_enhancement_bufer;
98 int renderer_init(void)
100 if (gpu.vram != NULL) {
101 initialize_psx_gpu(&egpu, gpu.vram);
105 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
106 map_enhancement_buffer();
108 ex_regs = gpu.ex_regs;
112 void renderer_finish(void)
114 if (egpu.enhancement_buf_ptr != NULL) {
115 egpu.enhancement_buf_ptr -= 4096 / 2;
116 gpu.munmap(egpu.enhancement_buf_ptr, ENHANCEMENT_BUF_SIZE);
118 egpu.enhancement_buf_ptr = NULL;
119 egpu.enhancement_current_buf_ptr = NULL;
123 static __attribute__((noinline)) void
124 sync_enhancement_buffers(int x, int y, int w, int h)
126 int i, right = x + w, bottom = y + h;
127 const u16 *src = gpu.vram;
128 // use these because the scanout struct may hold reduced w, h
129 // due to intersection stuff, see the update_enhancement_buf_scanouts() mess
130 int s_w = max(gpu.screen.hres, gpu.screen.w);
131 int s_h = gpu.screen.vres;
133 for (i = 0; i < ARRAY_SIZE(egpu.enhancement_scanouts); i++) {
134 const struct psx_gpu_scanout *s = &egpu.enhancement_scanouts[i];
135 u16 *dst = select_enhancement_buf_by_index(&egpu, i);
137 if (s->w == 0) continue;
138 if (s->x >= right) continue;
139 if (s->x + s_w <= x) continue;
140 if (s->y >= bottom) continue;
141 if (s->y + s_h <= y) continue;
143 x2 = min(right, s->x + s_w);
145 y2 = min(bottom, s->y + s_h);
146 // 16-byte align for the asm version
149 scale2x_tiles8(dst + y1 * 1024*2 + x1 * 2,
150 src + y1 * 1024 + x1, (x2 - x1 + 7) / 8u, y2 - y1);
154 void renderer_sync_ecmds(uint32_t *ecmds)
156 gpu_parse(&egpu, ecmds + 1, 6 * 4, NULL);
159 void renderer_update_caches(int x, int y, int w, int h, int state_changed)
161 update_texture_cache_region(&egpu, x, y, x + w - 1, y + h - 1);
163 if (gpu.state.enhancement_active) {
165 memset(egpu.enhancement_scanouts, 0, sizeof(egpu.enhancement_scanouts));
166 egpu.enhancement_scanout_eselect = 0;
167 update_enhancement_buf_scanouts(&egpu,
168 gpu.screen.src_x, gpu.screen.src_y, gpu.screen.hres, gpu.screen.vres);
171 sync_enhancement_buffers(x, y, w, h);
175 void renderer_flush_queues(void)
177 flush_render_block_buffer(&egpu);
180 void renderer_set_interlace(int enable, int is_odd)
182 egpu.render_mode &= ~(RENDER_INTERLACE_ENABLED|RENDER_INTERLACE_ODD);
184 egpu.render_mode |= RENDER_INTERLACE_ENABLED;
186 egpu.render_mode |= RENDER_INTERLACE_ODD;
189 void renderer_notify_res_change(void)
191 renderer_notify_scanout_change(gpu.screen.src_x, gpu.screen.src_y);
194 void renderer_notify_scanout_change(int x, int y)
196 if (!gpu.state.enhancement_active || !egpu.enhancement_buf_ptr)
199 update_enhancement_buf_scanouts(&egpu, x, y, gpu.screen.hres, gpu.screen.vres);
202 #include "../../frontend/plugin_lib.h"
204 void renderer_set_config(const struct rearmed_cbs *cbs)
207 initialize_psx_gpu(&egpu, gpu.vram);
210 if (cbs->pl_set_gpu_caps)
211 cbs->pl_set_gpu_caps(GPU_CAP_SUPPORTS_2X);
213 disable_main_render = cbs->gpu_neon.enhancement_no_main;
214 if (gpu.state.enhancement_enable) {
215 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
216 map_enhancement_buffer();
220 // vim:ts=2:sw=2:expandtab