cdrom: attempt to deal with broken subq :(
[pcsx_rearmed.git] / plugins / gpu_neon / psx_gpu_if.c
CommitLineData
90ca4913 1/*
2 * (C) GraÅžvydas "notaz" Ignotas, 2011
3 *
4 * This work is licensed under the terms of any of these licenses
5 * (at your option):
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.
9 */
10
11#include <stdio.h>
50f9355a 12#include <sys/mman.h>
90ca4913 13
652c6b8b 14extern const unsigned char cmd_lengths[256];
15#define command_lengths cmd_lengths
16
b243416b 17static unsigned int *ex_regs;
9ee0fd5b 18static int initialized;
b243416b 19
20#define PCSX
21#define SET_Ex(r, v) \
22 ex_regs[r] = v
23
90ca4913 24#include "psx_gpu/psx_gpu.c"
90ca4913 25#include "psx_gpu/psx_gpu_parse.c"
62d7fa95 26#include "../gpulib/gpu.h"
90ca4913 27
28static psx_gpu_struct egpu __attribute__((aligned(256)));
29
b243416b 30int do_cmd_list(uint32_t *list, int count, int *last_cmd)
90ca4913 31{
c1817bd9 32 int ret;
33
34 if (gpu.state.enhancement_active)
35 ret = gpu_parse_enhanced(&egpu, list, count * 4, (u32 *)last_cmd);
36 else
37 ret = gpu_parse(&egpu, list, count * 4, (u32 *)last_cmd);
b243416b 38
39 ex_regs[1] &= ~0x1ff;
40 ex_regs[1] |= egpu.texture_settings & 0x1ff;
41 return ret;
90ca4913 42}
43
06bc35c8 44#define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096 * 2)
50f9355a 45
a8be0deb 46static uint16_t *get_enhancement_bufer(int *x, int *y, int *w, int *h,
fa56d360 47 int *vram_h)
a8be0deb 48{
49 uint16_t *ret = select_enhancement_buf_ptr(&egpu, *x);
50
51 *x *= 2;
52 *y *= 2;
53 *w = *w * 2;
54 *h = *h * 2;
fa56d360 55 *vram_h = 1024;
a8be0deb 56 return ret;
57}
58
9ee0fd5b 59static void map_enhancement_buffer(void)
90ca4913 60{
9ee0fd5b 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).
a8be0deb 64 egpu.enhancement_buf_ptr = gpu.mmap(ENHANCEMENT_BUF_SIZE);
65 if (egpu.enhancement_buf_ptr == NULL) {
9ee0fd5b 66 fprintf(stderr, "failed to map enhancement buffer\n");
a8be0deb 67 gpu.get_enhancement_bufer = NULL;
68 }
69 else {
70 egpu.enhancement_buf_ptr += 4096 / 2;
71 gpu.get_enhancement_bufer = get_enhancement_bufer;
72 }
9ee0fd5b 73}
e929dec5 74
9ee0fd5b 75int renderer_init(void)
76{
77 if (gpu.vram != NULL) {
78 initialize_psx_gpu(&egpu, gpu.vram);
79 initialized = 1;
e929dec5 80 }
e929dec5 81
a8be0deb 82 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
9ee0fd5b 83 map_enhancement_buffer();
84
85 ex_regs = gpu.ex_regs;
90ca4913 86 return 0;
87}
88
e929dec5 89void renderer_finish(void)
90{
a8be0deb 91 if (egpu.enhancement_buf_ptr != NULL) {
92 egpu.enhancement_buf_ptr -= 4096 / 2;
93 gpu.munmap(egpu.enhancement_buf_ptr, ENHANCEMENT_BUF_SIZE);
06bc35c8 94 }
e929dec5 95 egpu.enhancement_buf_ptr = NULL;
06bc35c8 96 egpu.enhancement_current_buf_ptr = NULL;
9ee0fd5b 97 initialized = 0;
e929dec5 98}
99
50f9355a 100static __attribute__((noinline)) void
101sync_enhancement_buffers(int x, int y, int w, int h)
102{
7956599f 103 const int step_x = 1024 / sizeof(egpu.enhancement_buf_by_x16);
50f9355a 104 u16 *src, *dst;
7956599f 105 int w1, fb_index;
50f9355a 106
7956599f 107 w += x & (step_x - 1);
108 x &= ~(step_x - 1);
109 w = (w + step_x - 1) & ~(step_x - 1);
50f9355a 110 if (y + h > 512)
111 h = 512 - y;
112
7956599f 113 while (w > 0) {
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])
117 break;
118
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);
123
124 x += w1 * step_x;
50f9355a 125 }
126}
127
90ca4913 128void renderer_sync_ecmds(uint32_t *ecmds)
129{
b243416b 130 gpu_parse(&egpu, ecmds + 1, 6 * 4, NULL);
90ca4913 131}
132
05740673 133void renderer_update_caches(int x, int y, int w, int h)
90ca4913 134{
05740673 135 update_texture_cache_region(&egpu, x, y, x + w - 1, y + h - 1);
50f9355a 136 if (gpu.state.enhancement_active && !gpu.status.rgb24)
137 sync_enhancement_buffers(x, y, w, h);
90ca4913 138}
139
140void renderer_flush_queues(void)
141{
142 flush_render_block_buffer(&egpu);
143}
144
5440b88e 145void renderer_set_interlace(int enable, int is_odd)
146{
f1359c57 147 egpu.render_mode &= ~(RENDER_INTERLACE_ENABLED|RENDER_INTERLACE_ODD);
5440b88e 148 if (enable)
f1359c57 149 egpu.render_mode |= RENDER_INTERLACE_ENABLED;
5440b88e 150 if (is_odd)
f1359c57 151 egpu.render_mode |= RENDER_INTERLACE_ODD;
5440b88e 152}
153
e929dec5 154void renderer_notify_res_change(void)
155{
50f9355a 156 // note: must keep it multiple of 8
7956599f 157 if (egpu.enhancement_x_threshold != gpu.screen.hres)
158 {
159 egpu.enhancement_x_threshold = gpu.screen.hres;
77e34391 160 update_enhancement_buf_table_from_hres(&egpu);
7956599f 161 }
e929dec5 162}
163
c1817bd9 164#include "../../frontend/plugin_lib.h"
165
90ca4913 166void renderer_set_config(const struct rearmed_cbs *cbs)
167{
50f9355a 168 static int enhancement_was_on;
169
c1817bd9 170 disable_main_render = cbs->gpu_neon.enhancement_no_main;
50f9355a 171 if (egpu.enhancement_buf_ptr != NULL && cbs->gpu_neon.enhancement_enable
172 && !enhancement_was_on)
173 {
174 sync_enhancement_buffers(0, 0, 1024, 512);
175 }
176 enhancement_was_on = cbs->gpu_neon.enhancement_enable;
9ee0fd5b 177
178 if (!initialized) {
179 initialize_psx_gpu(&egpu, gpu.vram);
180 initialized = 1;
181 }
182
a8be0deb 183 if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
9ee0fd5b 184 map_enhancement_buffer();
fa56d360 185 if (cbs->pl_set_gpu_caps)
186 cbs->pl_set_gpu_caps(GPU_CAP_SUPPORTS_2X);
90ca4913 187}