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Attempt to make render to texture work on PSP

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stdgregwar 2020-12-26 19:20:17 +01:00 committed by Sam Lantinga
parent 7967c97618
commit 77d874e3c0
1 changed files with 118 additions and 71 deletions
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177
src/render/psp/SDL_render_psp.c
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@ -56,36 +56,13 @@ static unsigned int __attribute__((aligned(16))) DisplayList[262144];
#define COL4444(r,g,b,a) ((r>>4) | ((g>>4)<<4) | ((b>>4)<<8) | ((a>>4)<<12)) #define COL4444(r,g,b,a) ((r>>4) | ((g>>4)<<4) | ((b>>4)<<8) | ((a>>4)<<12))
#define COL8888(r,g,b,a) ((r) | ((g)<<8) | ((b)<<16) | ((a)<<24)) #define COL8888(r,g,b,a) ((r) | ((g)<<8) | ((b)<<16) | ((a)<<24))
typedef struct /**
{ * Holds psp specific texture data
SDL_bool viewport_dirty; *
SDL_Rect viewport; * Part of a hot-list of textures that are used as render targets
SDL_bool cliprect_enabled_dirty; * When short of vram we spill Least-Recently-Used render targets to system memory
SDL_bool cliprect_enabled; */
SDL_bool cliprect_dirty; typedef struct PSP_TextureData
SDL_Rect cliprect;
} PSP_DrawStateCache;
typedef struct
{
void* frontbuffer ;
void* backbuffer ;
SDL_bool initialized ;
SDL_bool displayListAvail ;
unsigned int psm ;
unsigned int bpp ;
SDL_bool vsync;
unsigned int currentColor;
int currentBlendMode;
PSP_DrawStateCache drawstate;
SDL_bool vblank_not_reached; /**< wether vblank wasn't reached */
} PSP_RenderData;
typedef struct
{ {
void *data; /**< Image data. */ void *data; /**< Image data. */
unsigned int size; /**< Size of data in bytes. */ unsigned int size; /**< Size of data in bytes. */
@ -97,9 +74,31 @@ typedef struct
unsigned int format; /**< Image format - one of ::pgePixelFormat. */ unsigned int format; /**< Image format - one of ::pgePixelFormat. */
unsigned int pitch; unsigned int pitch;
SDL_bool swizzled; /**< Is image swizzled. */ SDL_bool swizzled; /**< Is image swizzled. */
struct PSP_TextureData* prevhot; /**< More recently used render target */
struct PSP_TextureData* nexthot; /**< Less recently used render target */
} PSP_TextureData; } PSP_TextureData;
typedef struct
{
void* frontbuffer; /**< main screen buffer */
void* backbuffer; /**< buffer presented to display */
SDL_Texture* boundTarget; /**< currently bound rendertarget */
SDL_bool initialized; /**< is driver initialized */
SDL_bool displayListAvail; /**< is the display list already initialized for this frame */
unsigned int psm; /**< format of the display buffers */
unsigned int bpp; /**< bits per pixel of the main display */
SDL_bool vsync; /**< wether we do vsync */
unsigned int currentColor; /**< current drawing color */
int currentBlendMode; /**< current blend mode */
PSP_TextureData* most_recent_target; /**< start of render target LRU double linked list */
PSP_TextureData* least_recent_target; /**< end of the LRU list */
SDL_bool vblank_not_reached; /**< wether vblank wasn't reached */
} PSP_RenderData;
typedef struct typedef struct
{ {
float x, y, z; float x, y, z;
@ -131,7 +130,8 @@ typedef struct
#define radToDeg(x) ((x)*180.f/PI) #define radToDeg(x) ((x)*180.f/PI)
#define degToRad(x) ((x)*PI/180.f) #define degToRad(x) ((x)*PI/180.f)
float MathAbs(float x) static float
MathAbs(float x)
{ {
float result; float result;
@ -144,7 +144,8 @@ float MathAbs(float x)
return result; return result;
} }
void MathSincos(float r, float *s, float *c) static void
MathSincos(float r, float *s, float *c)
{ {
__asm__ volatile ( __asm__ volatile (
"mtv %2, S002\n" "mtv %2, S002\n"
@ -156,7 +157,8 @@ void MathSincos(float r, float *s, float *c)
: "=r"(*s), "=r"(*c): "r"(r)); : "=r"(*s), "=r"(*c): "r"(r));
} }
void Swap(float *a, float *b) static void
Swap(float *a, float *b)
{ {
float n=*a; float n=*a;
*a = *b; *a = *b;
@ -201,19 +203,34 @@ PixelFormatToPSPFMT(Uint32 format)
} }
} }
void static void
StartDrawing(SDL_Renderer * renderer) StartDrawing(SDL_Renderer * renderer)
{ {
PSP_RenderData *data = (PSP_RenderData *) renderer->driverdata; PSP_RenderData *data = (PSP_RenderData *) renderer->driverdata;
if(data->displayListAvail)
return;
// Check if we need to start GU displaylist
if(!data->displayListAvail) {
sceGuStart(GU_DIRECT, DisplayList); sceGuStart(GU_DIRECT, DisplayList);
data->displayListAvail = SDL_TRUE; data->displayListAvail = SDL_TRUE;
}
// Check if we need a draw buffer change
if(renderer->target != data->boundTarget) {
SDL_Texture* texture = renderer->target;
if(texture) {
PSP_TextureData* psp_texture = (PSP_TextureData*) texture->driverdata;
// Set target back to screen
sceGuDrawBufferList(psp_texture->format, vrelptr(psp_texture->data), psp_texture->textureWidth);
} else {
// Set target back to screen
sceGuDrawBufferList(data->psm, vrelptr(data->frontbuffer), PSP_FRAME_BUFFER_WIDTH);
}
data->boundTarget = texture;
}
} }
int static int
TextureSwizzle(PSP_TextureData *psp_texture) TextureSwizzle(PSP_TextureData *psp_texture)
{ {
int bytewidth, height; int bytewidth, height;
@ -262,7 +279,9 @@ TextureSwizzle(PSP_TextureData *psp_texture)
sceKernelDcacheWritebackRange(psp_texture->data, psp_texture->size); sceKernelDcacheWritebackRange(psp_texture->data, psp_texture->size);
return 1; return 1;
} }
int TextureUnswizzle(PSP_TextureData *psp_texture)
static int
TextureUnswizzle(PSP_TextureData *psp_texture)
{ {
int bytewidth, height; int bytewidth, height;
int widthblocks, heightblocks; int widthblocks, heightblocks;
@ -369,7 +388,11 @@ PSP_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
psp_texture->pitch = psp_texture->textureWidth * SDL_BYTESPERPIXEL(texture->format); psp_texture->pitch = psp_texture->textureWidth * SDL_BYTESPERPIXEL(texture->format);
psp_texture->size = psp_texture->textureHeight*psp_texture->pitch; psp_texture->size = psp_texture->textureHeight*psp_texture->pitch;
if(texture->access & SDL_TEXTUREACCESS_TARGET) {
psp_texture->data = valloc(psp_texture->size);
} else {
psp_texture->data = SDL_calloc(1, psp_texture->size); psp_texture->data = SDL_calloc(1, psp_texture->size);
}
if(!psp_texture->data) if(!psp_texture->data)
{ {
@ -381,14 +404,27 @@ PSP_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
return 0; return 0;
} }
void static inline int
InVram(void* data)
{
return data < 0x04200000;
}
static int
TextureShouldSwizzle(PSP_TextureData* psp_texture, SDL_Texture *texture)
{
return !((texture->access == SDL_TEXTUREACCESS_TARGET) && InVram(psp_texture->data))
&& (texture->w >= 16 || texture->h >= 16);
}
static void
TextureActivate(SDL_Texture * texture) TextureActivate(SDL_Texture * texture)
{ {
PSP_TextureData *psp_texture = (PSP_TextureData *) texture->driverdata; PSP_TextureData *psp_texture = (PSP_TextureData *) texture->driverdata;
int scaleMode = (texture->scaleMode == SDL_ScaleModeNearest) ? GU_NEAREST : GU_LINEAR; int scaleMode = (texture->scaleMode == SDL_ScaleModeNearest) ? GU_NEAREST : GU_LINEAR;
/* Swizzling is useless with small textures. */ /* Swizzling is useless with small textures. */
if (texture->w >= 16 || texture->h >= 16) if (TextureShouldSwizzle(psp_texture, texture))
{ {
TextureSwizzle(psp_texture); TextureSwizzle(psp_texture);
} }
@ -837,23 +873,22 @@ PSP_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *verti
} }
case SDL_RENDERCMD_SETVIEWPORT: { case SDL_RENDERCMD_SETVIEWPORT: {
SDL_Rect *viewport = &data->drawstate.viewport; SDL_Rect *viewport = &cmd->data.viewport.rect;
if (SDL_memcmp(viewport, &cmd->data.viewport.rect, sizeof (SDL_Rect)) != 0) { /* Viewport */
SDL_memcpy(viewport, &cmd->data.viewport.rect, sizeof (SDL_Rect)); sceGuOffset(2048 - (viewport->w >> 1), 2048 - (viewport->h >> 1));
data->drawstate.viewport_dirty = SDL_TRUE; sceGuViewport(2048, 2048, viewport->w, viewport->h);
} sceGuScissor(viewport->x, viewport->y, viewport->w, viewport->h);
break; break;
} }
case SDL_RENDERCMD_SETCLIPRECT: { case SDL_RENDERCMD_SETCLIPRECT: {
const SDL_Rect *rect = &cmd->data.cliprect.rect; const SDL_Rect *rect = &cmd->data.cliprect.rect;
if (data->drawstate.cliprect_enabled != cmd->data.cliprect.enabled) { /* Scissoring */
data->drawstate.cliprect_enabled = cmd->data.cliprect.enabled; if(cmd->data.cliprect.enabled){
data->drawstate.cliprect_enabled_dirty = SDL_TRUE; sceGuEnable(GU_SCISSOR_TEST);
} sceGuScissor(rect->x, rect->y, rect->w, rect->h);
if (SDL_memcmp(&data->drawstate.cliprect, rect, sizeof (SDL_Rect)) != 0) { } else {
SDL_memcpy(&data->drawstate.cliprect, rect, sizeof (SDL_Rect)); sceGuDisable(GU_SCISSOR_TEST);
data->drawstate.cliprect_dirty = SDL_TRUE;
} }
break; break;
} }
@ -866,8 +901,7 @@ PSP_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *verti
const Uint32 color = (((Uint32)a << 24) | (b << 16) | (g << 8) | r); const Uint32 color = (((Uint32)a << 24) | (b << 16) | (g << 8) | r);
/* !!! FIXME: we could cache drawstate like clear color */ /* !!! FIXME: we could cache drawstate like clear color */
sceGuClearColor(color); sceGuClearColor(color);
sceGuClearDepth(0); sceGuClear(GU_COLOR_BUFFER_BIT);//|GU_FAST_CLEAR_BIT);
sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT|GU_FAST_CLEAR_BIT);
break; break;
} }
@ -1038,7 +1072,11 @@ PSP_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
if(psp_texture == 0) if(psp_texture == 0)
return; return;
if(InVram(psp_texture->data)) {
vfree(psp_texture->data);
} else {
SDL_free(psp_texture->data); SDL_free(psp_texture->data);
}
SDL_free(psp_texture); SDL_free(psp_texture);
texture->driverdata = NULL; texture->driverdata = NULL;
} }
@ -1058,8 +1096,8 @@ PSP_DestroyRenderer(SDL_Renderer * renderer)
sceDisplayWaitVblankStart(); sceDisplayWaitVblankStart();
sceGuDisplay(GU_FALSE); sceGuDisplay(GU_FALSE);
sceGuTerm(); sceGuTerm();
/* vfree(data->backbuffer); */ vfree(data->backbuffer);
/* vfree(data->frontbuffer); */ vfree(data->frontbuffer);
data->initialized = SDL_FALSE; data->initialized = SDL_FALSE;
data->displayListAvail = SDL_FALSE; data->displayListAvail = SDL_FALSE;
@ -1083,6 +1121,8 @@ PSP_CreateRenderer(SDL_Window * window, Uint32 flags)
SDL_Renderer *renderer; SDL_Renderer *renderer;
PSP_RenderData *data; PSP_RenderData *data;
int pixelformat; int pixelformat;
void* doublebuffer = NULL;
renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer)); renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
if (!renderer) { if (!renderer) {
SDL_OutOfMemory(); SDL_OutOfMemory();
@ -1127,6 +1167,9 @@ PSP_CreateRenderer(SDL_Window * window, Uint32 flags)
return 0; return 0;
data->initialized = SDL_TRUE; data->initialized = SDL_TRUE;
data->most_recent_target = NULL;
data->least_recent_target = NULL;
if (flags & SDL_RENDERER_PRESENTVSYNC) { if (flags & SDL_RENDERER_PRESENTVSYNC) {
data->vsync = SDL_TRUE; data->vsync = SDL_TRUE;
} else { } else {
@ -1139,31 +1182,35 @@ PSP_CreateRenderer(SDL_Window * window, Uint32 flags)
case GU_PSM_4444: case GU_PSM_4444:
case GU_PSM_5650: case GU_PSM_5650:
case GU_PSM_5551: case GU_PSM_5551:
data->frontbuffer = (unsigned int *)(PSP_FRAME_BUFFER_SIZE<<1); //data->frontbuffer = (unsigned int *)(PSP_FRAME_BUFFER_SIZE<<1);
data->backbuffer = (unsigned int *)(0); //data->backbuffer = (unsigned int *)(0);
data->bpp = 2; data->bpp = 2;
data->psm = pixelformat; data->psm = pixelformat;
break; break;
default: default:
data->frontbuffer = (unsigned int *)(PSP_FRAME_BUFFER_SIZE<<2); //data->frontbuffer = (unsigned int *)(PSP_FRAME_BUFFER_SIZE<<2);
data->backbuffer = (unsigned int *)(0); //data->backbuffer = (unsigned int *)(0);
data->bpp = 4; data->bpp = 4;
data->psm = GU_PSM_8888; data->psm = GU_PSM_8888;
break; break;
} }
doublebuffer = valloc(PSP_FRAME_BUFFER_SIZE*data->bpp*2);
data->backbuffer = doublebuffer;
data->frontbuffer = ((uint8_t*)doublebuffer)+PSP_FRAME_BUFFER_SIZE*data->bpp;
sceGuInit(); sceGuInit();
/* setup GU */ /* setup GU */
sceGuStart(GU_DIRECT, DisplayList); sceGuStart(GU_DIRECT, DisplayList);
sceGuDrawBuffer(data->psm, data->frontbuffer, PSP_FRAME_BUFFER_WIDTH); sceGuDrawBuffer(data->psm, vrelptr(data->frontbuffer), PSP_FRAME_BUFFER_WIDTH);
sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT, data->backbuffer, PSP_FRAME_BUFFER_WIDTH); sceGuDispBuffer(PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT, vrelptr(data->backbuffer), PSP_FRAME_BUFFER_WIDTH);
sceGuOffset(2048 - (PSP_SCREEN_WIDTH>>1), 2048 - (PSP_SCREEN_HEIGHT>>1)); sceGuOffset(2048 - (PSP_SCREEN_WIDTH>>1), 2048 - (PSP_SCREEN_HEIGHT>>1));
sceGuViewport(2048, 2048, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT); sceGuViewport(2048, 2048, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);
data->frontbuffer = vabsptr(data->frontbuffer);
data->backbuffer = vabsptr(data->backbuffer); sceGuDisable(GU_DEPTH_TEST);
/* Scissoring */ /* Scissoring */
sceGuScissor(0, 0, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT); sceGuScissor(0, 0, PSP_SCREEN_WIDTH, PSP_SCREEN_HEIGHT);