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RetroArch/gx/gx_video.c
Toad King d478e8b0cd (RGUI) Add restart game item 
fix messages only staying up for half as long as they should
general cleanup
(GX) force vsync for menu rendering
general cleanup
2012-08-19 17:22:49 -04:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
* Copyright (C) 2011-2012 - Daniel De Matteis
* Copyright (C) 2012 - Michael Lelli
*
* 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 "../driver.h"
#include "../general.h"
#include "../console/rarch_console_video.h"
#include "gx_video.h"
#include <gccore.h>
#include <ogcsys.h>
#include <malloc.h>
#include <stdlib.h>
#include <string.h>
void *g_framebuf[2];
unsigned g_current_framebuf;
bool g_vsync;
lwpq_t g_video_cond;
volatile bool g_draw_done;
struct
{
uint32_t data[512 * 256];
GXTexObj obj;
} g_tex ATTRIBUTE_ALIGN(32);
struct
{
uint32_t data[240 * 320];
GXTexObj obj;
} menu_tex ATTRIBUTE_ALIGN(32);
uint8_t gx_fifo[256 * 1024] ATTRIBUTE_ALIGN(32);
uint8_t display_list[1024] ATTRIBUTE_ALIGN(32);
uint16_t gx_width, gx_height;
size_t display_list_size;
float verts[16] ATTRIBUTE_ALIGN(32) = {
-1, 1, -0.5,
-1, -1, -0.5,
1, -1, -0.5,
1, 1, -0.5,
};
float tex_coords[8] ATTRIBUTE_ALIGN(32) = {
0, 0,
0, 1,
1, 1,
1, 0,
};
float tex_coords_90[8] ATTRIBUTE_ALIGN(32) = {
0, 1,
1, 1,
1, 0,
0, 0
};
float tex_coords_180[8] ATTRIBUTE_ALIGN(32) = {
1, 1,
1, 0,
0, 0,
0, 1
};
float tex_coords_270[8] ATTRIBUTE_ALIGN(32) = {
1, 0,
0, 0,
0, 1,
1, 1
};
float *vertex_ptr = tex_coords;
void gx_set_aspect_ratio(void *data, unsigned aspectratio_idx)
{
gx_video_t *gx = (gx_video_t*)driver.video_data;
if (g_console.aspect_ratio_index == ASPECT_RATIO_AUTO)
rarch_set_auto_viewport(g_extern.frame_cache.width, g_extern.frame_cache.height);
g_settings.video.aspect_ratio = aspectratio_lut[g_console.aspect_ratio_index].value;
g_settings.video.force_aspect = false;
gx->keep_aspect = true;
gx->should_resize = true;
}
static void retrace_callback(u32 retrace_count)
{
(void)retrace_count;
g_draw_done = true;
LWP_ThreadSignal(g_video_cond);
}
static void setup_video_mode(GXRModeObj *mode)
{
VIDEO_Configure(mode);
for (unsigned i = 0; i < 2; i++)
{
g_framebuf[i] = MEM_K0_TO_K1(SYS_AllocateFramebuffer(mode));
VIDEO_ClearFrameBuffer(mode, g_framebuf[i], COLOR_BLACK);
}
g_current_framebuf = 0;
g_draw_done = true;
LWP_InitQueue(&g_video_cond);
VIDEO_SetNextFramebuffer(g_framebuf[0]);
VIDEO_SetPostRetraceCallback(retrace_callback);
VIDEO_SetBlack(false);
VIDEO_Flush();
VIDEO_WaitVSync();
if (mode->viTVMode & VI_NON_INTERLACE)
VIDEO_WaitVSync();
}
static void init_vtx(GXRModeObj *mode)
{
GX_SetViewport(0, 0, mode->fbWidth, mode->efbHeight, 0, 1);
GX_SetDispCopyYScale(GX_GetYScaleFactor(mode->efbHeight, mode->xfbHeight));
GX_SetScissor(0, 0, mode->fbWidth, mode->efbHeight);
GX_SetDispCopySrc(0, 0, mode->fbWidth, mode->efbHeight);
GX_SetDispCopyDst(mode->fbWidth, mode->xfbHeight);
GX_SetCopyFilter(mode->aa, mode->sample_pattern, (mode->xfbMode == VI_XFBMODE_SF) ? GX_FALSE : GX_TRUE,
mode->vfilter);
GX_SetCopyClear((GXColor) { 0, 0, 0, 0xff }, GX_MAX_Z24);
GX_SetFieldMode(mode->field_rendering, (mode->viHeight == 2 * mode->xfbHeight) ? GX_ENABLE : GX_DISABLE);
GX_SetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR);
GX_SetZMode(GX_ENABLE, GX_ALWAYS, GX_ENABLE);
GX_SetColorUpdate(GX_TRUE);
GX_SetAlphaUpdate(GX_FALSE);
Mtx44 m;
guOrtho(m, 1, -1, -1, 1, 0.4, 0.6);
GX_LoadProjectionMtx(m, GX_ORTHOGRAPHIC);
GX_ClearVtxDesc();
GX_SetVtxDesc(GX_VA_POS, GX_INDEX8);
GX_SetVtxDesc(GX_VA_TEX0, GX_INDEX8);
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
GX_SetArray(GX_VA_POS, verts, 3 * sizeof(float));
GX_SetArray(GX_VA_TEX0, vertex_ptr, 2 * sizeof(float));
GX_SetNumTexGens(1);
GX_SetNumChans(0);
GX_SetTevOp(GX_TEVSTAGE0, GX_REPLACE);
GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLORNULL);
GX_InvVtxCache();
GX_SetBlendMode(GX_BM_BLEND, GX_BL_ONE, GX_BL_INVSRCALPHA, 0);
GX_Flush();
}
static void init_texture(unsigned width, unsigned height)
{
unsigned g_filter = g_settings.video.smooth ? GX_LINEAR : GX_NEAR;
GX_InitTexObj(&g_tex.obj, g_tex.data, width, height, GX_TF_RGB5A3, GX_CLAMP, GX_CLAMP, GX_FALSE);
GX_InitTexObjLOD(&g_tex.obj, g_filter, g_filter, 0, 0, 0, GX_TRUE, GX_FALSE, GX_ANISO_1);
GX_InitTexObj(&menu_tex.obj, menu_tex.data, 320, 240, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
GX_InitTexObjLOD(&menu_tex.obj, g_filter, g_filter, 0, 0, 0, GX_TRUE, GX_FALSE, GX_ANISO_1);
GX_InvalidateTexAll();
}
static void build_disp_list(void)
{
DCInvalidateRange(display_list, sizeof(display_list));
GX_BeginDispList(display_list, sizeof(display_list));
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
for (unsigned i = 0; i < 4; i++)
{
GX_Position1x8(i);
GX_TexCoord1x8(i);
}
GX_End();
display_list_size = GX_EndDispList();
}
static void gx_stop(void)
{
GX_AbortFrame();
GX_Flush();
VIDEO_SetBlack(true);
VIDEO_Flush();
VIDEO_WaitVSync();
for (unsigned i = 0; i < 2; i++)
free(MEM_K1_TO_K0(g_framebuf[i]));
}
static void gx_restart(void)
{
}
static void *gx_init(const video_info_t *video,
const input_driver_t **input, void **input_data)
{
if (driver.video_data)
return driver.video_data;
gx_video_t *gx = (gx_video_t*)calloc(1, sizeof(gx_video_t));
if (!gx)
return NULL;
g_vsync = video->vsync;
gx->should_resize = true;
return gx;
}
static void gx_start(void)
{
video_info_t video_info = {0};
video_info.vsync = g_settings.video.vsync;
video_info.force_aspect = false;
video_info.fullscreen = true;
video_info.smooth = g_settings.video.smooth;
video_info.input_scale = 2;
driver.video_data = gx_init(&video_info, NULL, NULL);
VIDEO_Init();
GXRModeObj *mode = VIDEO_GetPreferredMode(NULL);
setup_video_mode(mode);
GX_Init(gx_fifo, sizeof(gx_fifo));
GX_SetDispCopyGamma(g_console.gamma_correction);
GX_SetCullMode(GX_CULL_NONE);
GX_SetClipMode(GX_CLIP_DISABLE);
init_vtx(mode);
build_disp_list();
g_vsync = true;
gx_width = mode->fbWidth;
gx_height = mode->efbHeight;
}
#define ASM_BLITTER
#ifdef ASM_BLITTER
static __attribute__ ((noinline)) void update_texture_asm(const uint32_t *src,
unsigned width, unsigned height, unsigned pitch)
{
register uint32_t tmp0, tmp1, tmp2, tmp3, line2, line2b, line3, line3b, line4, line4b, line5;
register uint32_t ormask = 0x80008000u;
register uint32_t *dst = g_tex.data;
__asm__ __volatile__ (
" srwi %[width], %[width], 2 \n"
" srwi %[height], %[height], 2 \n"
" subi %[tmp3], %[dst], 4 \n"
" mr %[dst], %[tmp3] \n"
" subi %[dst], %[dst], 4 \n"
" mr %[line2], %[pitch] \n"
" addi %[line2b], %[line2], 4 \n"
" mulli %[line3], %[pitch], 2 \n"
" addi %[line3b], %[line3], 4 \n"
" mulli %[line4], %[pitch], 3 \n"
" addi %[line4b], %[line4], 4 \n"
" mulli %[line5], %[pitch], 4 \n"
"2: mtctr %[width] \n"
" mr %[tmp0], %[src] \n"
"1: lwz %[tmp1], 0(%[src]) \n"
" or %[tmp1], %[tmp1], %[ormask] \n"
" stwu %[tmp1], 8(%[dst]) \n"
" lwz %[tmp2], 4(%[src]) \n"
" or %[tmp2], %[tmp2], %[ormask] \n"
" stwu %[tmp2], 8(%[tmp3]) \n"
" lwzx %[tmp1], %[line2], %[src] \n"
" or %[tmp1], %[tmp1], %[ormask] \n"
" stwu %[tmp1], 8(%[dst]) \n"
" lwzx %[tmp2], %[line2b], %[src] \n"
" or %[tmp2], %[tmp2], %[ormask] \n"
" stwu %[tmp2], 8(%[tmp3]) \n"
" lwzx %[tmp1], %[line3], %[src] \n"
" or %[tmp1], %[tmp1], %[ormask] \n"
" stwu %[tmp1], 8(%[dst]) \n"
" lwzx %[tmp2], %[line3b], %[src] \n"
" or %[tmp2], %[tmp2], %[ormask] \n"
" stwu %[tmp2], 8(%[tmp3]) \n"
" lwzx %[tmp1], %[line4], %[src] \n"
" or %[tmp1], %[tmp1], %[ormask] \n"
" stwu %[tmp1], 8(%[dst]) \n"
" lwzx %[tmp2], %[line4b], %[src] \n"
" or %[tmp2], %[tmp2], %[ormask] \n"
" stwu %[tmp2], 8(%[tmp3]) \n"
" addi %[src], %[src], 8 \n"
" bdnz 1b \n"
" add %[src], %[tmp0], %[line5] \n"
" subic. %[height], %[height], 1 \n"
" bne 2b \n"
: [tmp0] "=&b" (tmp0),
[tmp1] "=&b" (tmp1),
[tmp2] "=&b" (tmp2),
[tmp3] "=&b" (tmp3),
[line2] "=&b" (line2),
[line2b] "=&b" (line2b),
[line3] "=&b" (line3),
[line3b] "=&b" (line3b),
[line4] "=&b" (line4),
[line4b] "=&b" (line4b),
[line5] "=&b" (line5),
[dst] "+b" (dst)
: [src] "b" (src),
[width] "b" (width),
[height] "b" (height),
[pitch] "b" (pitch),
[ormask] "b" (ormask)
);
}
#endif
// Set MSB to get full RGB555.
#define RGB15toRGB5A3(col) ((col) | 0x80008000u)
#define BLIT_LINE(off) \
{ \
const uint32_t *tmp_src = src; \
uint32_t *tmp_dst = dst; \
for (unsigned x = 0; x < width2; x += 8, tmp_src += 8, tmp_dst += 32) \
{ \
tmp_dst[ 0 + off] = RGB15toRGB5A3(tmp_src[0]); \
tmp_dst[ 1 + off] = RGB15toRGB5A3(tmp_src[1]); \
tmp_dst[ 8 + off] = RGB15toRGB5A3(tmp_src[2]); \
tmp_dst[ 9 + off] = RGB15toRGB5A3(tmp_src[3]); \
tmp_dst[16 + off] = RGB15toRGB5A3(tmp_src[4]); \
tmp_dst[17 + off] = RGB15toRGB5A3(tmp_src[5]); \
tmp_dst[24 + off] = RGB15toRGB5A3(tmp_src[6]); \
tmp_dst[25 + off] = RGB15toRGB5A3(tmp_src[7]); \
} \
src += pitch; \
}
#define BLIT_16(x) \
{ \
block[0 + 0 ] = line[x][0]; \
block[0 + 16] = line[x][1]; \
block[1 + 0 ] = line[x][2]; \
block[1 + 16] = line[x][3]; \
block[2 + 0 ] = line[x][4]; \
block[2 + 16] = line[x][5]; \
block[3 + 0 ] = line[x][6]; \
block[3 + 16] = line[x][7]; \
block += 4; \
line[x] += 8; \
}
static void update_texture(const uint32_t *src,
unsigned width, unsigned height, unsigned pitch)
{
gx_video_t *gx = (gx_video_t*)driver.video_data;
#ifdef ASM_BLITTER
if (width && height && !(width & 3) && !(height & 3))
{
update_texture_asm(src, width, height, pitch);
}
else
#endif
{
pitch >>= 2;
width &= ~15;
height &= ~3;
unsigned width2 = width >> 1;
// Texture data is 4x4 tiled @ 15bpp.
// Use 32-bit to transfer more data per cycle.
uint32_t *dst = g_tex.data;
for (unsigned i = 0; i < height; i += 4, dst += 4 * width2)
{
BLIT_LINE(0)
BLIT_LINE(2)
BLIT_LINE(4)
BLIT_LINE(6)
}
}
if(gx->menu_render)
{
uint16_t *block = (uint16_t *) menu_tex.data;
uint16_t *line[4];
for (uint32_t y = 0; y < 240; y += 4)
{
uint32_t *menu_data = gx->menu_data;
// fetch the next 4 scanlines
line[0] = (uint16_t *) &menu_data[(y + 0) * 320];
line[1] = (uint16_t *) &menu_data[(y + 1) * 320];
line[2] = (uint16_t *) &menu_data[(y + 2) * 320];
line[3] = (uint16_t *) &menu_data[(y + 3) * 320];
for (unsigned x = 0; x < 320; x += 4)
{
BLIT_16(0)
BLIT_16(1)
BLIT_16(2)
BLIT_16(3)
block += 16;
}
}
}
init_texture(width, height);
DCFlushRange(g_tex.data, sizeof(g_tex.data));
DCFlushRange(menu_tex.data, sizeof(menu_tex.data));
GX_InvalidateTexAll();
}
static void gx_resize(gx_video_t *gx)
{
unsigned x = 0, y = 0, width = gx_width, height = gx_height;
#ifdef HW_RVL
VIDEO_SetTrapFilter(g_console.soft_display_filter_enable);
#endif
GX_SetDispCopyGamma(g_console.gamma_correction);
if (gx->keep_aspect)
{
float desired_aspect = g_settings.video.aspect_ratio;
float device_aspect = CONF_GetAspectRatio() == CONF_ASPECT_4_3 ? 4.0 / 3.0 : 16.0 / 9.0;
float delta;
#ifdef RARCH_CONSOLE
if (g_console.aspect_ratio_index == ASPECT_RATIO_CUSTOM)
{
// TODO
/*x = g_console.viewports.custom_vp.x;
y = g_console.viewports.custom_vp.y;
width = g_console.viewports.custom_vp.width;
height = g_console.viewports.custom_vp.height;*/
}
else
#endif
{
if (fabs(device_aspect - desired_aspect) < 0.0001)
{
// If the aspect ratios of screen and desired aspect ratio are sufficiently equal (floating point stuff),
// assume they are actually equal.
}
else if (device_aspect > desired_aspect)
{
delta = (desired_aspect / device_aspect - 1.0) / 2.0 + 0.5;
x = (unsigned)(width * (0.5 - delta));
width = (unsigned)(2.0 * width * delta);
}
else
{
delta = (device_aspect / desired_aspect - 1.0) / 2.0 + 0.5;
y = (unsigned)(height * (0.5 - delta));
height = (unsigned)(2.0 * height * delta);
}
}
}
GX_SetViewport(x, y, width, height, 0, 1);
gx->should_resize = false;
}
static bool gx_frame(void *data, const void *frame,
unsigned width, unsigned height, unsigned pitch,
const char *msg)
{
gx_video_t *gx = (gx_video_t*)driver.video_data;
bool menu_render = gx->menu_render;
bool should_resize = gx->should_resize;
(void)data;
if (msg)
snprintf(gx->msg, sizeof(gx->msg), "%s", msg);
else
gx->msg[0] = 0;
if(!frame && !menu_render)
return true;
gx->frame_count++;
if(should_resize)
{
gx_resize(gx);
}
while ((g_vsync || menu_render) && !g_draw_done)
LWP_ThreadSleep(g_video_cond);
g_draw_done = false;
g_current_framebuf ^= 1;
update_texture(frame, width, height, pitch);
if (frame)
{
GX_LoadTexObj(&g_tex.obj, GX_TEXMAP0);
GX_CallDispList(display_list, display_list_size);
GX_DrawDone();
}
if(menu_render)
{
GX_LoadTexObj(&menu_tex.obj, GX_TEXMAP0);
GX_CallDispList(display_list, display_list_size);
GX_DrawDone();
}
GX_CopyDisp(g_framebuf[g_current_framebuf], GX_TRUE);
GX_Flush();
VIDEO_SetNextFramebuffer(g_framebuf[g_current_framebuf]);
VIDEO_Flush();
return true;
}
static void gx_set_nonblock_state(void *data, bool state)
{
(void)data;
g_vsync = !state;
}
static bool gx_alive(void *data)
{
(void)data;
return true;
}
static bool gx_focus(void *data)
{
(void)data;
return true;
}
static void gx_free(void *data)
{
(void)data;
}
static void gx_set_rotation(void * data, uint32_t orientation)
{
(void)data;
(void)orientation;
switch(orientation)
{
case ORIENTATION_NORMAL:
vertex_ptr = tex_coords;
break;
case ORIENTATION_VERTICAL:
vertex_ptr = tex_coords_90;
break;
case ORIENTATION_FLIPPED:
vertex_ptr = tex_coords_180;
break;
case ORIENTATION_FLIPPED_ROTATED:
vertex_ptr = tex_coords_270;
break;
}
GX_SetArray(GX_VA_TEX0, vertex_ptr, 2 * sizeof(float));
}
const video_driver_t video_gx = {
.init = gx_init,
.frame = gx_frame,
.alive = gx_alive,
.set_nonblock_state = gx_set_nonblock_state,
.focus = gx_focus,
.free = gx_free,
.ident = "gx",
.set_rotation = gx_set_rotation,
.start = gx_start,
.stop = gx_stop,
.restart = gx_restart,
};
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