RetroArch/gfx/xenon360_gfx.c
2014-08-15 21:32:36 +02:00

277 lines
7.8 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2014 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include <xenos/xe.h>
#include <xenos/xenos.h>
#include <xenos/edram.h>
#include <xenos/xenos.h>
#include "driver.h"
#include "general.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define XE_W 512
#define XE_H 512
#define UV_BOTTOM 0
#define UV_TOP 1
#define UV_LEFT 2
#define UV_RIGHT 3
// pixel shader
const unsigned int g_xps_PS[] =
{
0x102a1100, 0x000000b4, 0x0000003c, 0x00000000, 0x00000024, 0x00000000,
0x0000008c, 0x00000000, 0x00000000, 0x00000064, 0x0000001c, 0x00000057,
0xffff0300, 0x00000001, 0x0000001c, 0x00000000, 0x00000050, 0x00000030,
0x00030000, 0x00010000, 0x00000040, 0x00000000, 0x54657874, 0x75726553,
0x616d706c, 0x657200ab, 0x0004000c, 0x00010001, 0x00010000, 0x00000000,
0x70735f33, 0x5f300032, 0x2e302e32, 0x30333533, 0x2e3000ab, 0x00000000,
0x0000003c, 0x10000100, 0x00000008, 0x00000000, 0x00001842, 0x00010003,
0x00000001, 0x00003050, 0x0000f1a0, 0x00011002, 0x00001200, 0xc4000000,
0x00001003, 0x00002200, 0x00000000, 0x10081001, 0x1f1ff688, 0x00004000,
0xc80f8000, 0x00000000, 0xe2010100, 0x00000000, 0x00000000, 0x00000000
};
// vertex shader
const unsigned int g_xvs_VS[] =
{
0x102a1101, 0x0000009c, 0x00000078, 0x00000000, 0x00000024, 0x00000000,
0x00000058, 0x00000000, 0x00000000, 0x00000030, 0x0000001c, 0x00000023,
0xfffe0300, 0x00000000, 0x00000000, 0x00000000, 0x0000001c, 0x76735f33,
0x5f300032, 0x2e302e32, 0x30333533, 0x2e3000ab, 0x00000000, 0x00000078,
0x00110002, 0x00000000, 0x00000000, 0x00001842, 0x00000001, 0x00000003,
0x00000002, 0x00000290, 0x00100003, 0x0000a004, 0x00305005, 0x00003050,
0x0001f1a0, 0x00001007, 0x00001008, 0x70153003, 0x00001200, 0xc2000000,
0x00001006, 0x00001200, 0xc4000000, 0x00002007, 0x00002200, 0x00000000,
0x05f82000, 0x00000688, 0x00000000, 0x05f81000, 0x00000688, 0x00000000,
0x05f80000, 0x00000fc8, 0x00000000, 0xc80f803e, 0x00000000, 0xe2020200,
0xc8038000, 0x00b0b000, 0xe2000000, 0xc80f8001, 0x00000000, 0xe2010100,
0x00000000, 0x00000000, 0x00000000
};
typedef struct DrawVerticeFormats
{
float x, y, z, w;
unsigned int color;
float u, v;
} DrawVerticeFormats;
typedef struct xenon360_video xenon360_video_t;
static bool g_quitting;
typedef struct gl
{
unsigned char *screen;
struct XenosVertexBuffer *vb;
struct XenosDevice * gl_device;
struct XenosDevice real_device;
struct XenosShader * g_pVertexShader;
struct XenosShader * g_pPixelTexturedShader;
struct XenosSurface * g_pTexture;
} gl_t;
static float ScreenUv[4] = {0.f, 1.0f, 1.0f, 0.f};
static void xenon360_gfx_free(void *data)
{
gl_t *vid = data;
if (!vid)
return;
free(vid);
}
static void *xenon360_gfx_init(const video_info_t *video, const input_driver_t **input, void **input_data)
{
gl_t * gl = calloc(1, sizeof(gl_t));
if (!gl)
return NULL;
gl->gl_device = &gl->real_device;
Xe_Init(gl->gl_device);
Xe_SetRenderTarget(gl->gl_device, Xe_GetFramebufferSurface(gl->gl_device));
static const struct XenosVBFFormat vbf =
{
3,
{
{XE_USAGE_POSITION, 0, XE_TYPE_FLOAT4},
{XE_USAGE_COLOR, 0, XE_TYPE_UBYTE4},
{XE_USAGE_TEXCOORD, 0, XE_TYPE_FLOAT2},
}
};
gl->g_pPixelTexturedShader = Xe_LoadShaderFromMemory(gl->gl_device, (void*)g_xps_PS);
Xe_InstantiateShader(gl->gl_device, gl->g_pPixelTexturedShader, 0);
gl->g_pVertexShader = Xe_LoadShaderFromMemory(gl->gl_device, (void*)g_xvs_VS);
Xe_InstantiateShader(gl->gl_device, gl->g_pVertexShader, 0);
Xe_ShaderApplyVFetchPatches(gl->gl_device, gl->g_pVertexShader, 0, &vbf);
gl->g_pTexture = Xe_CreateTexture(gl->gl_device, XE_W, XE_H, 1, XE_FMT_5551 | XE_FMT_16BE, 0);
gl->g_pTexture->use_filtering = 1;
edram_init(gl->gl_device);
// enable filtering for now
float x = -1.0f;
float y = 1.0f;
float w = 4.0f;
float h = 4.0f;
gl->vb = Xe_CreateVertexBuffer(gl->gl_device, 3 * sizeof(DrawVerticeFormats));
DrawVerticeFormats *Rect = Xe_VB_Lock(gl->gl_device, gl->vb, 0, 3 * sizeof (DrawVerticeFormats), XE_LOCK_WRITE);
ScreenUv[UV_TOP] = ScreenUv[UV_TOP] * 2;
ScreenUv[UV_LEFT] = ScreenUv[UV_LEFT] * 2;
// top left
Rect[0].x = x;
Rect[0].y = y;
Rect[0].u = ScreenUv[UV_BOTTOM];
Rect[0].v = ScreenUv[UV_RIGHT];
Rect[0].color = 0;
// bottom left
Rect[1].x = x;
Rect[1].y = y - h;
Rect[1].u = ScreenUv[UV_BOTTOM];
Rect[1].v = ScreenUv[UV_LEFT];
Rect[1].color = 0;
// top right
Rect[2].x = x + w;
Rect[2].y = y;
Rect[2].u = ScreenUv[UV_TOP];
Rect[2].v = ScreenUv[UV_RIGHT];
Rect[2].color = 0;
Rect[3].x = x + w;
Rect[3].y = y;
Rect[3].u = ScreenUv[UV_TOP];
Rect[3].v = ScreenUv[UV_RIGHT];
Rect[3].color = 0;
int i = 0;
for (i = 0; i < 3; i++)
{
Rect[i].z = 0.0;
Rect[i].w = 1.0;
}
Xe_VB_Unlock(gl->gl_device, gl->vb);
Xe_SetClearColor(gl->gl_device, 0);
return gl;
}
static bool xenon360_gfx_frame(void *data, const void *frame, unsigned width, unsigned height, unsigned pitch, const char *msg)
{
gl_t *vid = data;
ScreenUv[UV_TOP] = ((float) (width) / (float) XE_W)*2;
ScreenUv[UV_LEFT] = ((float) (height) / (float) XE_H)*2;
DrawVerticeFormats * Rect = Xe_VB_Lock(vid->gl_device, vid->vb, 0, 3 * sizeof(DrawVerticeFormats), XE_LOCK_WRITE);
// bottom left
Rect[1].v = ScreenUv[UV_LEFT];
Rect[2].u = ScreenUv[UV_TOP];
Xe_VB_Unlock(vid->gl_device, vid->vb);
// Refresh texture cache
uint16_t *dst = Xe_Surface_LockRect(vid->gl_device, vid->g_pTexture, 0, 0, 0, 0, XE_LOCK_WRITE);
const uint16_t *src = frame;
unsigned stride_in = pitch >>1;
unsigned stride_out = vid->g_pTexture->wpitch >> 1;
unsigned copy_size =width << 1;
for (unsigned y = 0; y < height; y++, dst += stride_out, src += stride_in)
memcpy(dst, src, copy_size);
Xe_Surface_Unlock(vid->gl_device, vid->g_pTexture);
// Reset states
Xe_InvalidateState(vid->gl_device);
Xe_SetClearColor(vid->gl_device, 0);
// Select stream
Xe_SetTexture(vid->gl_device, 0, vid->g_pTexture);
Xe_SetCullMode(vid->gl_device, XE_CULL_NONE);
Xe_SetStreamSource(vid->gl_device, 0, vid->vb, 0, sizeof(DrawVerticeFormats));
// Select shaders
Xe_SetShader(vid->gl_device, SHADER_TYPE_PIXEL, vid->g_pPixelTexturedShader, 0);
Xe_SetShader(vid->gl_device, SHADER_TYPE_VERTEX, vid->g_pVertexShader, 0);
// Draw
Xe_DrawPrimitive(vid->gl_device, XE_PRIMTYPE_TRIANGLELIST, 0, 1);
// Resolve
Xe_Resolve(vid->gl_device);
Xe_Sync(vid->gl_device);
return true;
}
static void xenon360_gfx_set_nonblock_state(void *data, bool state)
{
(void)data;
(void)state;
}
static bool xenon360_gfx_alive(void *data)
{
(void)data;
return !g_quitting;
}
static bool xenon360_gfx_focus(void *data)
{
(void)data;
return true;
}
static void xenon360_gfx_set_rotation(void *data, unsigned rotation)
{
(void)data;
(void)rotation;
}
const video_driver_t video_xenon360 = {
xenon360_gfx_init,
xenon360_gfx_frame,
xenon360_gfx_set_nonblock_state,
xenon360_gfx_alive,
xenon360_gfx_focus,
NULL,
xenon360_gfx_free,
"xenon360"
};