try to emulate borders properly
[pcsx_rearmed.git] / plugins / gpulib / vout_pl.c
CommitLineData
56f08d83 1/*
1f219c7b 2 * video output handling using plugin_lib
56f08d83 3 * (C) GraÅžvydas "notaz" Ignotas, 2011
4 *
5 * This work is licensed under the terms of any of these licenses
6 * (at your option):
7 * - GNU GPL, version 2 or later.
8 * - GNU LGPL, version 2.1 or later.
9 * See the COPYING file in the top-level directory.
10 */
11
aafcb4dd 12#include <string.h>
56f08d83 13#include "gpu.h"
14#include "../../frontend/plugin_lib.h"
56f08d83 15
16static const struct rearmed_cbs *cbs;
56f08d83 17
18int vout_init(void)
19{
20 return 0;
21}
22
23int vout_finish(void)
24{
25 return 0;
26}
27
fa56d360 28static void check_mode_change(int force)
56f08d83 29{
0b02eb77 30 int w = gpu.screen.hres;
5bbe183f 31 int h = gpu.screen.vres;
e4c83ca6 32 int w_out = w;
33 int h_out = h;
0b02eb77 34
35 gpu.state.enhancement_active =
a8be0deb 36 gpu.get_enhancement_bufer != NULL && gpu.state.enhancement_enable
61124a6d 37 && w <= 512 && h <= 256 && !(gpu.status & PSX_GPU_STATUS_RGB24);
0b02eb77 38
39 if (gpu.state.enhancement_active) {
e4c83ca6 40 w_out *= 2;
41 h_out *= 2;
0b02eb77 42 }
7d993ee2 43
43047988
JW
44 gpu.state.downscale_active =
45 gpu.get_downscale_buffer != NULL && gpu.state.downscale_enable
46 && (w >= 512 || h >= 256);
47
48 if (gpu.state.downscale_active) {
49 w_out = w < 512 ? w : 320;
50 h_out = h < 256 ? h : h / 2;
51 }
52
7d993ee2 53 // width|rgb24 change?
e9309bb7 54 if (force || (gpu.status ^ gpu.state.status_vo_old) & ((7<<16)|(1<<21))
55 || w_out != gpu.state.w_out_old || h_out != gpu.state.h_out_old)
7d993ee2 56 {
e9309bb7 57 gpu.state.status_vo_old = gpu.status;
58 gpu.state.w_out_old = w_out;
59 gpu.state.h_out_old = h_out;
0b02eb77 60
61124a6d
PC
61 cbs->pl_vout_set_mode(w_out, h_out, w, h,
62 (gpu.status & PSX_GPU_STATUS_RGB24) ? 24 : 16);
7d993ee2 63 }
64}
65
fa56d360 66void vout_update(void)
7d993ee2 67{
5bbe183f 68 int bpp = (gpu.status & PSX_GPU_STATUS_RGB24) ? 24 : 16;
69 uint8_t *vram = (uint8_t *)gpu.vram;
70 int src_x = gpu.screen.src_x;
71 int src_y = gpu.screen.src_y;
630b122b 72 int x = gpu.screen.x;
56f08d83 73 int y = gpu.screen.y;
74 int w = gpu.screen.w;
8dd855cd 75 int h = gpu.screen.h;
fa56d360 76 int vram_h = 512;
5bbe183f 77 int src_x2 = 0;
78
79 if (x < 0) { w += x; src_x2 = -x; x = 0; }
80 if (y < 0) { h += y; src_y -= y; y = 0; }
fa56d360 81
5bbe183f 82 if (w <= 0 || h <= 0)
aafcb4dd 83 return;
84
fa56d360 85 check_mode_change(0);
5bbe183f 86 if (gpu.state.enhancement_active) {
87 vram = gpu.get_enhancement_bufer(&src_x, &src_y, &w, &h, &vram_h);
88 x *= 2; y *= 2;
89 }
56f08d83 90
43047988 91 if (gpu.state.downscale_active)
5bbe183f 92 vram = (void *)gpu.get_downscale_buffer(&src_x, &src_y, &w, &h, &vram_h);
43047988 93
5bbe183f 94 if (src_y + h > vram_h) {
95 if (src_y + h - vram_h > h / 2) {
fa56d360 96 // wrap
5bbe183f 97 h -= vram_h - src_y;
98 src_y = 0;
56f08d83 99 }
fa56d360 100 else
101 // clip
5bbe183f 102 h = vram_h - src_y;
56f08d83 103 }
104
5bbe183f 105 vram += (src_y * 1024 + src_x) * 2;
106 vram += src_x2 * bpp / 8;
56f08d83 107
5bbe183f 108 cbs->pl_vout_flip(vram, 1024, !!(gpu.status & PSX_GPU_STATUS_RGB24),
109 x, y, w, h, gpu.state.dims_changed);
110 gpu.state.dims_changed = 0;
56f08d83 111}
112
aafcb4dd 113void vout_blank(void)
114{
fa56d360 115 int w = gpu.screen.hres;
5bbe183f 116 int h = gpu.screen.vres;
92a5fe88 117
118 check_mode_change(0);
fa56d360 119 if (gpu.state.enhancement_active) {
120 w *= 2;
121 h *= 2;
aafcb4dd 122 }
5bbe183f 123 cbs->pl_vout_flip(NULL, 1024, !!(gpu.status & PSX_GPU_STATUS_RGB24), 0, 0, w, h, 0);
aafcb4dd 124}
125
096ec49b 126long GPUopen(void **unused)
56f08d83 127{
19e7cf87 128 gpu.frameskip.active = 0;
129 gpu.frameskip.frame_ready = 1;
fc84f618 130
9394ada5 131 cbs->pl_vout_open();
fa56d360 132 check_mode_change(1);
e3d0c514 133 vout_update();
56f08d83 134 return 0;
135}
136
137long GPUclose(void)
138{
9394ada5 139 cbs->pl_vout_close();
56f08d83 140 return 0;
141}
142
5440b88e 143void vout_set_config(const struct rearmed_cbs *cbs_)
56f08d83 144{
145 cbs = cbs_;
146}
147
148// vim:shiftwidth=2:expandtab