mirror of
https://github.com/libretro/RetroArch
synced 2025-01-31 15:32:59 +00:00
425 lines
11 KiB
C
425 lines
11 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2018 - Francisco Javier Trujillo Mata - fjtrujy
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "../video_driver.h"
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#include "../../driver.h"
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#include "../../verbosity.h"
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#include <loadcore.h>
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#include <kernel.h>
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#include <gsKit.h>
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#include <gsInline.h>
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#define GS_TEXT GS_SETREG_RGBAQ(0x80,0x80,0x80,0x80,0x00) // turn white GS Screen
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#define GS_BLACK GS_SETREG_RGBAQ(0x00,0x00,0x00,0x00,0x00) // turn white GS Screen
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typedef struct ps2_video
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{
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GSGLOBAL *gsGlobal;
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GSTEXTURE *menuTexture;
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GSTEXTURE *coreTexture;
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bool menuVisible;
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bool fullscreen;
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bool rgb32;
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bool force_aspect;
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int menu_filter;
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int core_filter;
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} ps2_video_t;
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// PRIVATE METHODS
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static GSGLOBAL *init_GSGlobal(void) {
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GSGLOBAL *gsGlobal = gsKit_init_global();
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gsGlobal->PSM = GS_PSM_CT16;
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gsGlobal->PSMZ = GS_PSMZ_16S;
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gsGlobal->DoubleBuffering = GS_SETTING_OFF;
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gsGlobal->ZBuffering = GS_SETTING_OFF;
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gsGlobal->PrimAlphaEnable = GS_SETTING_OFF;
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dmaKit_init(D_CTRL_RELE_OFF,D_CTRL_MFD_OFF, D_CTRL_STS_UNSPEC,
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D_CTRL_STD_OFF, D_CTRL_RCYC_8, 1 << DMA_CHANNEL_GIF);
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// Initialize the DMAC
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dmaKit_chan_init(DMA_CHANNEL_GIF);
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gsKit_init_screen(gsGlobal);
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gsKit_mode_switch(gsGlobal, GS_ONESHOT);
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gsKit_clear(gsGlobal, GS_BLACK);
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return gsGlobal;
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}
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static GSTEXTURE * prepare_new_texture(void) {
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GSTEXTURE *texture = malloc(sizeof *texture);
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texture->Width = 0;
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texture->Height = 0;
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texture->Mem = NULL;
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return texture;
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}
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static void init_ps2_video(ps2_video_t *ps2) {
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ps2->gsGlobal = init_GSGlobal();
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ps2->menuTexture = prepare_new_texture();
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ps2->coreTexture = prepare_new_texture();
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}
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static void deinitTexture(GSTEXTURE *texture) {
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free(texture->Mem);
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free(texture->Clut);
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texture->Mem = NULL;
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texture->Clut = NULL;
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}
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static void color_correction32(uint32_t *buffer, uint32_t dimensions)
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{
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uint32_t i;
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uint32_t x32;
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for (i = 0; i < dimensions; i++) {
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x32 = buffer[i];
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buffer[i] = ((x32 >> 16) & 0xFF) | ((x32 << 16) & 0xFF0000) | (x32 & 0xFF00FF00);
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}
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}
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static void color_correction16(uint16_t *buffer, uint32_t dimensions)
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{
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uint32_t i;
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uint16_t x16;
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for (i = 0; i < dimensions; i++) {
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x16 = buffer[i];
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buffer[i] = (x16 & 0x8000) | ((x16 << 10) & 0x7C00) | (x16 & 0x3E0) | ((x16 >> 10) & 0x1F);
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}
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}
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static void transfer_texture(GSTEXTURE *texture, const void *frame,
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int width, int height, bool rgb32, int filter, bool color_correction) {
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int PSM = rgb32 ? GS_PSM_CT32 : GS_PSM_CT16;
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size_t size = gsKit_texture_size_ee(width, height, PSM);
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if ( !texture->Mem ||
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texture->Width != width ||
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texture->Height != height ||
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texture->PSM != PSM ) {
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texture->Width = width;
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texture->Height = height;
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texture->PSM = PSM;
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texture->Filter = filter;
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free(texture->Mem);
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texture->Mem = memalign(128, size);
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}
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if (color_correction) {
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int pixels = width * height;
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if (rgb32) {
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uint32_t *buffer = (uint32_t *)frame;
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color_correction32(buffer, pixels);
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} else {
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uint16_t *buffer = (uint16_t *)frame;
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color_correction16(buffer, pixels);
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}
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}
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memcpy(texture->Mem, frame, size);
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}
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static void vram_alloc(GSGLOBAL *gsGlobal, GSTEXTURE *texture) {
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uint32_t size = gsKit_texture_size(texture->Width, texture->Height, texture->PSM);
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texture->Vram=gsKit_vram_alloc(gsGlobal, size, GSKIT_ALLOC_USERBUFFER);
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if(texture->Vram == GSKIT_ALLOC_ERROR) {
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printf("VRAM Allocation Failed. Will not upload texture.\n");
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}
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}
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static void prim_texture(GSGLOBAL *gsGlobal, GSTEXTURE *texture, int zPosition, bool force_aspect) {
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float x1, y1, x2, y2;
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if (force_aspect) {
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float delta = 1.0f;
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float texture_aspect_ratio = texture->Width / texture->Height;
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float gsGlobal_aspect_ratio = gsGlobal->Width / gsGlobal->Height;
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if (texture_aspect_ratio < gsGlobal_aspect_ratio) {
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//height
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delta = gsGlobal->Height / texture->Height;
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} else {
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//width
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delta = gsGlobal->Width / texture->Width;
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}
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float newWidth = texture->Width * delta;
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float newHeight = texture->Height * delta;
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x1 = (gsGlobal->Width - newWidth) / 2.0f;
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y1 = (gsGlobal->Height - newHeight) / 2.0f;
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x2 = newWidth + x1;
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y2 = newHeight + y1;
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} else {
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x1 = 0.0f;
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y1 = 0.0f;
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x2 = gsGlobal->Width;
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y2 = gsGlobal->Height;
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}
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gsKit_prim_sprite_texture( gsGlobal, texture,
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x1, //X1
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y1, // Y1
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0.0f, // U1
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0.0f, // V1
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x2, // X2
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y2, // Y2
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texture->Width, // U2
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texture->Height, // V2
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zPosition,
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GS_TEXT);
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}
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static void *ps2_gfx_init(const video_info_t *video,
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const input_driver_t **input, void **input_data)
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{
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void *ps2input = NULL;
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*input_data = NULL;
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(void)video;
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ps2_video_t *ps2 = (ps2_video_t*)calloc(1, sizeof(ps2_video_t));
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if (!ps2)
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return NULL;
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init_ps2_video(ps2);
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ps2->rgb32 = video->rgb32;
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ps2->fullscreen = video->fullscreen;
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ps2->core_filter = video->smooth ? GS_FILTER_LINEAR : GS_FILTER_NEAREST;
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ps2->force_aspect = video->force_aspect;
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if (input && input_data)
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{
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settings_t *settings = config_get_ptr();
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ps2input = input_ps2.init(settings->arrays.input_joypad_driver);
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*input = ps2input ? &input_ps2 : NULL;
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*input_data = ps2input;
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}
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return ps2;
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}
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static bool ps2_gfx_frame(void *data, const void *frame,
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unsigned width, unsigned height, uint64_t frame_count,
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unsigned pitch, const char *msg, video_frame_info_t *video_info)
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{
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#ifdef DISPLAY_FPS
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uint32_t diff;
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static uint64_t currentTick,lastTick;
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static int frames;
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static float fps = 0.0;
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#endif
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ps2_video_t *ps2 = (ps2_video_t*)data;
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if (!width || !height)
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return false;
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if (frame_count%120==0) {
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printf("ps2_gfx_frame %i\n", frame_count);
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}
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gsKit_vram_clear(ps2->gsGlobal);
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if (frame) {
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transfer_texture(ps2->coreTexture, frame, width, height, ps2->rgb32, ps2->core_filter, 1);
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vram_alloc(ps2->gsGlobal, ps2->coreTexture);
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gsKit_texture_upload(ps2->gsGlobal, ps2->coreTexture);
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prim_texture(ps2->gsGlobal, ps2->coreTexture, 1, ps2->force_aspect);
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}
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bool texture_empty = !ps2->menuTexture->Width || !ps2->menuTexture->Height;
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if (ps2->menuVisible && !texture_empty) {
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vram_alloc(ps2->gsGlobal, ps2->menuTexture);
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gsKit_texture_upload(ps2->gsGlobal, ps2->menuTexture);
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prim_texture(ps2->gsGlobal, ps2->menuTexture, 2, ps2->fullscreen);
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}
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gsKit_sync_flip(ps2->gsGlobal);
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gsKit_queue_exec(ps2->gsGlobal);
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return true;
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}
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static void ps2_gfx_set_nonblock_state(void *data, bool toggle)
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{
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(void)data;
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(void)toggle;
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}
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static bool ps2_gfx_alive(void *data)
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{
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(void)data;
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return true;
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}
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static bool ps2_gfx_focus(void *data)
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{
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(void)data;
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return true;
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}
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static bool ps2_gfx_suppress_screensaver(void *data, bool enable)
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{
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(void)data;
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(void)enable;
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return false;
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}
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static bool ps2_gfx_has_windowed(void *data)
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{
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(void)data;
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return true;
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}
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static void ps2_gfx_free(void *data)
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{
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ps2_video_t *ps2 = (ps2_video_t*)data;
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gsKit_clear(ps2->gsGlobal, GS_BLACK);
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gsKit_vram_clear(ps2->gsGlobal);
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deinitTexture(ps2->menuTexture);
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deinitTexture(ps2->coreTexture);
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gsKit_deinit_global(ps2->gsGlobal);
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free(data);
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}
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static bool ps2_gfx_set_shader(void *data,
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enum rarch_shader_type type, const char *path)
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{
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(void)data;
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(void)type;
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(void)path;
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return false;
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}
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static void ps2_gfx_set_rotation(void *data,
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unsigned rotation)
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{
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(void)data;
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(void)rotation;
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}
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static void ps2_gfx_viewport_info(void *data,
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struct video_viewport *vp)
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{
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(void)data;
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(void)vp;
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}
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static bool ps2_gfx_read_viewport(void *data, uint8_t *buffer, bool is_idle)
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{
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(void)data;
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(void)buffer;
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return true;
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}
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static void ps2_set_filtering(void *data, unsigned index, bool smooth)
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{
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ps2_video_t *ps2 = (ps2_video_t*)data;
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ps2->menu_filter = smooth ? GS_FILTER_LINEAR : GS_FILTER_NEAREST;
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}
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static void ps2_set_aspect_ratio(void *data, unsigned aspect_ratio_idx)
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{
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ps2_video_t *ps2 = (ps2_video_t*)data;
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}
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static void ps2_apply_state_changes(void *data)
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{
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ps2_video_t *ps2 = (ps2_video_t*)data;
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}
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static void ps2_set_texture_frame(void *data, const void *frame, bool rgb32,
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unsigned width, unsigned height, float alpha)
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{
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ps2_video_t *ps2 = (ps2_video_t*)data;
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transfer_texture(ps2->menuTexture, frame, width, height, rgb32, ps2->menu_filter, 0);
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}
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static void ps2_set_texture_enable(void *data, bool enable, bool fullscreen)
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{
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ps2_video_t *ps2 = (ps2_video_t*)data;
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ps2->menuVisible = enable;
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ps2->fullscreen = fullscreen;
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}
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static const video_poke_interface_t ps2_poke_interface = {
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NULL, /* get_flags */
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NULL, /* set_coords */
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NULL, /* set_mvp */
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NULL,
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NULL,
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NULL,
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NULL, /* get_refresh_rate */
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ps2_set_filtering,
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NULL, /* get_video_output_size */
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NULL, /* get_video_output_prev */
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NULL, /* get_video_output_next */
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NULL, /* get_current_framebuffer */
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NULL, /* get_proc_address */
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ps2_set_aspect_ratio,
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ps2_apply_state_changes,
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ps2_set_texture_frame,
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ps2_set_texture_enable,
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NULL, /* set_osd_msg */
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NULL, /* show_mouse */
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NULL, /* grab_mouse_toggle */
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NULL, /* get_current_shader */
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NULL, /* get_current_software_framebuffer */
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NULL /* get_hw_render_interface */
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};
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static void ps2_gfx_get_poke_interface(void *data,
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const video_poke_interface_t **iface)
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{
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(void)data;
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*iface = &ps2_poke_interface;
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}
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video_driver_t video_ps2 = {
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ps2_gfx_init,
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ps2_gfx_frame,
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ps2_gfx_set_nonblock_state,
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ps2_gfx_alive,
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ps2_gfx_focus,
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ps2_gfx_suppress_screensaver,
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ps2_gfx_has_windowed,
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ps2_gfx_set_shader,
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ps2_gfx_free,
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"ps2",
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NULL, /* set_viewport */
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ps2_gfx_set_rotation,
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ps2_gfx_viewport_info,
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ps2_gfx_read_viewport,
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NULL, /* read_frame_raw */
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#ifdef HAVE_OVERLAY
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NULL, /* overlay_interface */
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#endif
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ps2_gfx_get_poke_interface,
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};
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