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Add triangle prim support 

Improve line support
Add initial texture support
This commit is contained in:
Daniel Santos 2022-07-04 04:09:55 -03:00 committed by Sam Lantinga
parent 88e64f9ae1
commit cdf89fde91
2 changed files with 101 additions and 790 deletions
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132
src/render/ps2/SDL_render_ps2.c
View File

@ -144,7 +144,7 @@ PS2_DrawLines(SDL_Surface * dst, const SDL_Point * points, int count,
gsKit_prim_line(gsGlobal, x1, y1, x2, y2, 1, color); gsKit_prim_line(gsGlobal, x1, y1, x2, y2, 1, color);
} }
if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) { if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) {
SDL_DrawPoint(dst, points[count-1].x, points[count-1].y, color); PS2_DrawPoints(dst, points, 1, color);
} }
return 0; return 0;
} }
@ -265,34 +265,77 @@ PS2_GetOutputSize(SDL_Renderer * renderer, int *w, int *h)
return SDL_SetError("Software renderer doesn't have an output surface"); return SDL_SetError("Software renderer doesn't have an output surface");
} }
static int
PixelFormatToPS2PSM(Uint32 format)
{
switch (format) {
case SDL_PIXELFORMAT_ABGR1555:
return GS_PSM_CT16S;
case SDL_PIXELFORMAT_BGR888:
return GS_PSM_CT24;
case SDL_PIXELFORMAT_ABGR8888:
return GS_PSM_CT32;
default:
return GS_PSM_CT32;
}
}
static int static int
PS2_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture) PS2_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{ {
int bpp; int bpp;
Uint32 Rmask, Gmask, Bmask, Amask; Uint32 Rmask, Gmask, Bmask, Amask;
GSTEXTURE* ps2_tex = (GSTEXTURE*) SDL_calloc(1, sizeof(GSTEXTURE));
if (!SDL_PixelFormatEnumToMasks if(!ps2_tex)
(texture->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) { return SDL_OutOfMemory();
return SDL_SetError("Unknown texture format");
ps2_tex->Delayed = true;
ps2_tex->Width = texture->w;
ps2_tex->Height = texture->h;
ps2_tex->PSM = PixelFormatToPS2PSM(texture->format);
ps2_tex->Mem = memalign(128, gsKit_texture_size_ee(ps2_tex->Width, ps2_tex->Height, ps2_tex->PSM));
if(!ps2_tex->Mem)
{
SDL_free(ps2_tex);
return SDL_OutOfMemory();
} }
texture->driverdata = if(!ps2_tex->Delayed)
SDL_CreateRGBSurface(0, texture->w, texture->h, bpp, Rmask, Gmask, {
Bmask, Amask); ps2_tex->Vram = gsKit_vram_alloc(gsGlobal, gsKit_texture_size(ps2_tex->Width, ps2_tex->Height, ps2_tex->PSM), GSKIT_ALLOC_USERBUFFER);
SDL_SetSurfaceColorMod(texture->driverdata, texture->color.r, texture->color.g, texture->color.b); if(ps2_tex->Vram == GSKIT_ALLOC_ERROR) {
SDL_SetSurfaceAlphaMod(texture->driverdata, texture->color.a); printf("VRAM Allocation Failed. Will not upload texture.\n");
SDL_SetSurfaceBlendMode(texture->driverdata, texture->blendMode); return -1;
}
/* Only RLE encode textures without an alpha channel since the RLE coder if(ps2_tex->Clut != NULL) {
* discards the color values of pixels with an alpha value of zero. if(ps2_tex->PSM == GS_PSM_T4)
*/ ps2_tex->VramClut = gsKit_vram_alloc(gsGlobal, gsKit_texture_size(8, 2, GS_PSM_CT32), GSKIT_ALLOC_USERBUFFER);
if (texture->access == SDL_TEXTUREACCESS_STATIC && !Amask) { else
SDL_SetSurfaceRLE(texture->driverdata, 1); ps2_tex->VramClut = gsKit_vram_alloc(gsGlobal, gsKit_texture_size(16, 16, GS_PSM_CT32), GSKIT_ALLOC_USERBUFFER);
}
if(ps2_tex->VramClut == GSKIT_ALLOC_ERROR)
{
printf("VRAM CLUT Allocation Failed. Will not upload texture.\n");
return -1;
}
}
gsKit_texture_upload(gsGlobal, ps2_tex);
free(ps2_tex->Mem);
ps2_tex->Mem = NULL;
if(ps2_tex->Clut != NULL) {
free(ps2_tex->Clut);
ps2_tex->Clut = NULL;
}
} else {
gsKit_setup_tbw(ps2_tex);
}
texture->driverdata = ps2_tex;
if (!texture->driverdata) {
return -1;
}
return 0; return 0;
} }
@ -326,12 +369,12 @@ static int
PS2_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture, PS2_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, void **pixels, int *pitch) const SDL_Rect * rect, void **pixels, int *pitch)
{ {
SDL_Surface *surface = (SDL_Surface *) texture->driverdata; GSTEXTURE *surface = (GSTEXTURE *) texture->driverdata;
*pixels = *pixels =
(void *) ((Uint8 *) surface->pixels + rect->y * surface->pitch + (void *) ((Uint8 *) surface->Mem +
rect->x * surface->format->BytesPerPixel); gsKit_texture_size_ee(surface->Width, surface->Height, surface->PSM));
*pitch = surface->pitch; //*pitch = surface->pitch;
return 0; return 0;
} }
@ -1064,13 +1107,27 @@ PS2_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *verti
} }
} }
GSTEXTURE* tex = cmd->data.draw.texture->driverdata;
for (i = 0; i < count; i += 3, ptr += 3) { for (i = 0; i < count; i += 3, ptr += 3) {
SDL_PS2_BlitTriangle( float x1 = ptr[0].dst.x;
src, float y1 = ptr[0].dst.y;
&(ptr[0].src), &(ptr[1].src), &(ptr[2].src),
surface, float x2 = ptr[1].dst.x;
&(ptr[0].dst), &(ptr[1].dst), &(ptr[2].dst), float y2 = ptr[1].dst.y;
ptr[0].color, ptr[1].color, ptr[2].color);
float x3 = ptr[2].dst.x;
float y3 = ptr[2].dst.y;
Uint32 c1 = (ptr[0].color.r | (ptr[0].color.g << 8) | (ptr[0].color.b << 16) | (ptr[0].color.a << 24));
Uint32 c2 = (ptr[1].color.r | (ptr[1].color.g << 8) | (ptr[1].color.b << 16) | (ptr[1].color.a << 24));
Uint32 c3 = (ptr[0].color.r | (ptr[2].color.g << 8) | (ptr[2].color.b << 16) | (ptr[2].color.a << 24));
if (tex->Delayed == true) {
gsKit_TexManager_bind(gsGlobal, tex);
}
//It still need some works to make texture render on-screen
gsKit_prim_triangle_goraud_texture(gsGlobal, tex, x1, y1, 0, 0, x2, y2, 0, 1, x3, y3, 1, 0, 1, c1, c2, c3);
} }
} else { } else {
GeometryFillData *ptr = (GeometryFillData *) verts; GeometryFillData *ptr = (GeometryFillData *) verts;
@ -1087,8 +1144,21 @@ PS2_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *verti
} }
} }
for (i = 0; i < count; i += 3, ptr += 3) { for (i = 0; i < count; i += 3, ptr += 3) { //These for loops need to be in a separated function
SDL_PS2_FillTriangle(surface, &(ptr[0].dst), &(ptr[1].dst), &(ptr[2].dst), blend, ptr[0].color, ptr[1].color, ptr[2].color); float x1 = ptr[0].dst.x;
float y1 = ptr[0].dst.y;
float x2 = ptr[1].dst.x;
float y2 = ptr[1].dst.y;
float x3 = ptr[2].dst.x;
float y3 = ptr[2].dst.y;
Uint32 c1 = (ptr[0].color.r | (ptr[0].color.g << 8) | (ptr[0].color.b << 16) | (ptr[0].color.a << 24));
Uint32 c2 = (ptr[1].color.r | (ptr[1].color.g << 8) | (ptr[1].color.b << 16) | (ptr[1].color.a << 24));
Uint32 c3 = (ptr[0].color.r | (ptr[2].color.g << 8) | (ptr[2].color.b << 16) | (ptr[2].color.a << 24));
gsKit_prim_triangle_gouraud(gsGlobal, x1, y1, x2, y2, x3, y3, 1, c1, c2, c3);
} }
} }
break; break;

759
src/render/ps2/SDL_triangle.c
View File

@ -36,84 +36,6 @@
#define FP_BITS 1 #define FP_BITS 1
#define COLOR_EQ(c1, c2) ((c1).r == (c2).r && (c1).g == (c2).g && (c1).b == (c2).b && (c1).a == (c2).a)
static void SDL_BlitTriangle_Slow(SDL_BlitInfo * info,
SDL_Point s2_x_area, SDL_Rect dstrect, int area, int bias_w0, int bias_w1, int bias_w2,
int d2d1_y, int d1d2_x, int d0d2_y, int d2d0_x, int d1d0_y, int d0d1_x,
int s2s0_x, int s2s1_x, int s2s0_y, int s2s1_y, int w0_row, int w1_row, int w2_row,
SDL_Color c0, SDL_Color c1, SDL_Color c2, int is_uniform);
#if 0
int SDL_BlitTriangle(SDL_Surface *src, const SDL_Point srcpoints[3], SDL_Surface *dst, const SDL_Point dstpoints[3])
{
int i;
SDL_Point points[6];
if (src == NULL || dst == NULL) {
return -1;
}
for (i = 0; i < 3; i++) {
if (srcpoints[i].x < 0 || srcpoints[i].y < 0 || srcpoints[i].x >= src->w || srcpoints[i].y >= src->h) {
return SDL_SetError("Values of 'srcpoints' out of bounds");
}
}
points[0] = srcpoints[0];
points[1] = dstpoints[0];
points[2] = srcpoints[1];
points[3] = dstpoints[1];
points[4] = srcpoints[2];
points[5] = dstpoints[2];
for (i = 0; i < 3; i++) {
PS2_trianglepoint_2_fixedpoint(&points[2 * i + 1]);
}
return SDL_PS2_BlitTriangle(src, dst, points);
}
int SDL_FillTriangle(SDL_Surface *dst, const SDL_Point points[3], Uint32 color)
{
int i;
SDL_Point points_tmp[3];
if (dst == NULL) {
return -1;
}
for (i = 0; i < 3; i++) {
points_tmp[i] = points[i];
PS2_trianglepoint_2_fixedpoint(&points_tmp[i]);
}
return SDL_PS2_FillTriangle(dst, points_tmp, SDL_BLENDMODE_NONE, color);
}
#endif
/* cross product AB x AC */
static int cross_product(const SDL_Point *a, const SDL_Point *b, int c_x, int c_y)
{
return (b->x - a->x) * (c_y - a->y) - (b->y - a->y) * (c_x - a->x);
}
/* check for top left rules */
static int is_top_left(const SDL_Point *a, const SDL_Point *b, int is_clockwise)
{
if (is_clockwise) {
if (a->y == b->y && a->x < b->x) {
return 1;
}
if (b->y < a->y) {
return 1;
}
} else {
if (a->y == b->y && b->x < a->x) {
return 1;
}
if (a->y < b->y) {
return 1;
}
}
return 0;
}
void PS2_trianglepoint_2_fixedpoint(SDL_Point *a) { void PS2_trianglepoint_2_fixedpoint(SDL_Point *a) {
a->x <<= FP_BITS; a->x <<= FP_BITS;
a->y <<= FP_BITS; a->y <<= FP_BITS;
@ -202,687 +124,6 @@ static void bounding_rect(const SDL_Point *a, const SDL_Point *b, const SDL_Poin
} \ } \
} \ } \
int SDL_PS2_FillTriangle(SDL_Surface *dst, SDL_Point *d0, SDL_Point *d1, SDL_Point *d2, SDL_BlendMode blend, SDL_Color c0, SDL_Color c1, SDL_Color c2)
{
int ret = 0;
int dst_locked = 0;
SDL_Rect dstrect;
int dstbpp;
Uint8 *dst_ptr;
int dst_pitch;
int area, is_clockwise;
int d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x;
int w0_row, w1_row, w2_row;
int bias_w0, bias_w1, bias_w2;
int is_uniform;
SDL_Surface *tmp = NULL;
if (dst == NULL) {
return -1;
}
area = cross_product(d0, d1, d2->x, d2->y);
is_uniform = COLOR_EQ(c0, c1) && COLOR_EQ(c1, c2);
/* Flat triangle */
if (area == 0) {
return 0;
}
/* Lock the destination, if needed */
if (SDL_MUSTLOCK(dst)) {
if (SDL_LockSurface(dst) < 0) {
ret = -1;
goto end;
} else {
dst_locked = 1;
}
}
bounding_rect_fixedpoint(d0, d1, d2, &dstrect);
{
/* Clip triangle rect with surface rect */
SDL_Rect rect;
rect.x = 0;
rect.y = 0;
rect.w = dst->w;
rect.h = dst->h;
SDL_IntersectRect(&dstrect, &rect, &dstrect);
}
{
/* Clip triangle with surface clip rect */
SDL_Rect rect;
SDL_GetClipRect(dst, &rect);
SDL_IntersectRect(&dstrect, &rect, &dstrect);
}
if (blend != SDL_BLENDMODE_NONE) {
int format = dst->format->format;
/* need an alpha format */
if (! dst->format->Amask) {
format = SDL_PIXELFORMAT_ARGB8888;
}
/* Use an intermediate surface */
tmp = SDL_CreateRGBSurfaceWithFormat(0, dstrect.w, dstrect.h, 0, format);
if (tmp == NULL) {
ret = -1;
goto end;
}
if (blend == SDL_BLENDMODE_MOD) {
Uint32 c = SDL_MapRGBA(tmp->format, 255, 255, 255, 255);
SDL_FillRect(tmp, NULL, c);
}
SDL_SetSurfaceBlendMode(tmp, blend);
dstbpp = tmp->format->BytesPerPixel;
dst_ptr = tmp->pixels;
dst_pitch = tmp->pitch;
} else {
/* Write directly to destination surface */
dstbpp = dst->format->BytesPerPixel;
dst_ptr = (Uint8 *)dst->pixels + dstrect.x * dstbpp + dstrect.y * dst->pitch;
dst_pitch = dst->pitch;
}
is_clockwise = area > 0;
area = SDL_abs(area);
d2d1_y = (d1->y - d2->y) << FP_BITS;
d0d2_y = (d2->y - d0->y) << FP_BITS;
d1d0_y = (d0->y - d1->y) << FP_BITS;
d1d2_x = (d2->x - d1->x) << FP_BITS;
d2d0_x = (d0->x - d2->x) << FP_BITS;
d0d1_x = (d1->x - d0->x) << FP_BITS;
/* Starting point for rendering, at the middle of a pixel */
{
SDL_Point p;
p.x = dstrect.x;
p.y = dstrect.y;
PS2_trianglepoint_2_fixedpoint(&p);
p.x += (1 << FP_BITS) / 2;
p.y += (1 << FP_BITS) / 2;
w0_row = cross_product(d1, d2, p.x, p.y);
w1_row = cross_product(d2, d0, p.x, p.y);
w2_row = cross_product(d0, d1, p.x, p.y);
}
/* Handle anti-clockwise triangles */
if (! is_clockwise) {
d2d1_y *= -1;
d0d2_y *= -1;
d1d0_y *= -1;
d1d2_x *= -1;
d2d0_x *= -1;
d0d1_x *= -1;
w0_row *= -1;
w1_row *= -1;
w2_row *= -1;
}
/* Add a bias to respect top-left rasterization rule */
bias_w0 = (is_top_left(d1, d2, is_clockwise) ? 0 : -1);
bias_w1 = (is_top_left(d2, d0, is_clockwise) ? 0 : -1);
bias_w2 = (is_top_left(d0, d1, is_clockwise) ? 0 : -1);
if (is_uniform) {
Uint32 color;
if (tmp) {
if (dst->format->Amask) {
color = SDL_MapRGBA(tmp->format, c0.r, c0.g, c0.b, c0.a);
} else {
//color = SDL_MapRGB(tmp->format, c0.r, c0.g, c0.b);
color = SDL_MapRGBA(tmp->format, c0.r, c0.g, c0.b, c0.a);
}
} else {
color = SDL_MapRGBA(dst->format, c0.r, c0.g, c0.b, c0.a);
}
if (dstbpp == 4) {
TRIANGLE_BEGIN_LOOP
{
*(Uint32 *)dptr = color;
}
TRIANGLE_END_LOOP
} else if (dstbpp == 3) {
TRIANGLE_BEGIN_LOOP
{
Uint8 *s = (Uint8*)&color;
dptr[0] = s[0];
dptr[1] = s[1];
dptr[2] = s[2];
}
TRIANGLE_END_LOOP
} else if (dstbpp == 2) {
TRIANGLE_BEGIN_LOOP
{
*(Uint16 *)dptr = color;
}
TRIANGLE_END_LOOP
} else if (dstbpp == 1) {
TRIANGLE_BEGIN_LOOP
{
*dptr = color;
}
TRIANGLE_END_LOOP
}
} else {
SDL_PixelFormat *format = dst->format;
if (tmp) {
format = tmp->format;
}
if (dstbpp == 4) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_MAPPED_COLOR
*(Uint32 *)dptr = color;
}
TRIANGLE_END_LOOP
} else if (dstbpp == 3) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_MAPPED_COLOR
Uint8 *s = (Uint8*)&color;
dptr[0] = s[0];
dptr[1] = s[1];
dptr[2] = s[2];
}
TRIANGLE_END_LOOP
} else if (dstbpp == 2) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_MAPPED_COLOR
*(Uint16 *)dptr = color;
}
TRIANGLE_END_LOOP
} else if (dstbpp == 1) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_MAPPED_COLOR
*dptr = color;
}
TRIANGLE_END_LOOP
}
}
if (tmp) {
SDL_BlitSurface(tmp, NULL, dst, &dstrect);
SDL_FreeSurface(tmp);
}
end:
if (dst_locked) {
SDL_UnlockSurface(dst);
}
return ret;
}
int SDL_PS2_BlitTriangle(
SDL_Surface *src,
SDL_Point *s0, SDL_Point *s1, SDL_Point *s2,
SDL_Surface *dst,
SDL_Point *d0, SDL_Point *d1, SDL_Point *d2,
SDL_Color c0, SDL_Color c1, SDL_Color c2)
{
int ret = 0;
int src_locked = 0;
int dst_locked = 0;
SDL_BlendMode blend;
SDL_Rect dstrect;
SDL_Point s2_x_area;
int dstbpp;
Uint8 *dst_ptr;
int dst_pitch;
int *src_ptr;
int src_pitch;
int area, is_clockwise;
int d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x;
int s2s0_x, s2s1_x, s2s0_y, s2s1_y;
int w0_row, w1_row, w2_row;
int bias_w0, bias_w1, bias_w2;
int is_uniform;
int has_modulation;
if (src == NULL || dst == NULL) {
return -1;
}
area = cross_product(d0, d1, d2->x, d2->y);
/* Flat triangle */
if (area == 0) {
return 0;
}
/* Lock the destination, if needed */
if (SDL_MUSTLOCK(dst)) {
if (SDL_LockSurface(dst) < 0) {
ret = -1;
goto end;
} else {
dst_locked = 1;
}
}
/* Lock the source, if needed */
if (SDL_MUSTLOCK(src)) {
if (SDL_LockSurface(src) < 0) {
ret = -1;
goto end;
} else {
src_locked = 1;
}
}
is_uniform = COLOR_EQ(c0, c1) && COLOR_EQ(c1, c2);
bounding_rect_fixedpoint(d0, d1, d2, &dstrect);
SDL_GetSurfaceBlendMode(src, &blend);
/* TRIANGLE_GET_TEXTCOORD interpolates up to the max values included, so reduce by 1 */
{
SDL_Rect srcrect;
int maxx, maxy;
bounding_rect(s0, s1, s2, &srcrect);
maxx = srcrect.x + srcrect.w;
maxy = srcrect.y + srcrect.h;
if (srcrect.w > 0) {
if (s0->x == maxx) s0->x--;
if (s1->x == maxx) s1->x--;
if (s2->x == maxx) s2->x--;
}
if (srcrect.h > 0) {
if (s0->y == maxy) s0->y--;
if (s1->y == maxy) s1->y--;
if (s2->y == maxy) s2->y--;
}
}
if (is_uniform) {
// SDL_GetSurfaceColorMod(src, &r, &g, &b);
has_modulation = c0.r != 255 || c0.g != 255 || c0.b != 255 || c0.a != 255;;
} else {
has_modulation = SDL_TRUE;
}
{
/* Clip triangle rect with surface rect */
SDL_Rect rect;
rect.x = 0;
rect.y = 0;
rect.w = dst->w;
rect.h = dst->h;
SDL_IntersectRect(&dstrect, &rect, &dstrect);
}
{
/* Clip triangle with surface clip rect */
SDL_Rect rect;
SDL_GetClipRect(dst, &rect);
SDL_IntersectRect(&dstrect, &rect, &dstrect);
}
/* Set destination pointer */
dstbpp = dst->format->BytesPerPixel;
dst_ptr = (Uint8 *)dst->pixels + dstrect.x * dstbpp + dstrect.y * dst->pitch;
dst_pitch = dst->pitch;
/* Set source pointer */
src_ptr = src->pixels;
src_pitch = src->pitch;
is_clockwise = area > 0;
area = SDL_abs(area);
d2d1_y = (d1->y - d2->y) << FP_BITS;
d0d2_y = (d2->y - d0->y) << FP_BITS;
d1d0_y = (d0->y - d1->y) << FP_BITS;
d1d2_x = (d2->x - d1->x) << FP_BITS;
d2d0_x = (d0->x - d2->x) << FP_BITS;
d0d1_x = (d1->x - d0->x) << FP_BITS;
s2s0_x = s0->x - s2->x;
s2s1_x = s1->x - s2->x;
s2s0_y = s0->y - s2->y;
s2s1_y = s1->y - s2->y;
/* Starting point for rendering, at the middle of a pixel */
{
SDL_Point p;
p.x = dstrect.x;
p.y = dstrect.y;
PS2_trianglepoint_2_fixedpoint(&p);
p.x += (1 << FP_BITS) / 2;
p.y += (1 << FP_BITS) / 2;
w0_row = cross_product(d1, d2, p.x, p.y);
w1_row = cross_product(d2, d0, p.x, p.y);
w2_row = cross_product(d0, d1, p.x, p.y);
}
/* Handle anti-clockwise triangles */
if (! is_clockwise) {
d2d1_y *= -1;
d0d2_y *= -1;
d1d0_y *= -1;
d1d2_x *= -1;
d2d0_x *= -1;
d0d1_x *= -1;
w0_row *= -1;
w1_row *= -1;
w2_row *= -1;
}
/* Add a bias to respect top-left rasterization rule */
bias_w0 = (is_top_left(d1, d2, is_clockwise) ? 0 : -1);
bias_w1 = (is_top_left(d2, d0, is_clockwise) ? 0 : -1);
bias_w2 = (is_top_left(d0, d1, is_clockwise) ? 0 : -1);
/* precompute constant 's2->x * area' used in TRIANGLE_GET_TEXTCOORD */
s2_x_area.x = s2->x * area;
s2_x_area.y = s2->y * area;
if (blend != SDL_BLENDMODE_NONE || src->format->format != dst->format->format || has_modulation || ! is_uniform) {
/* Use SDL_BlitTriangle_Slow */
SDL_BlitInfo *info = &src->map->info;
SDL_BlitInfo tmp_info;
SDL_zero(tmp_info);
tmp_info.src_fmt = src->format;
tmp_info.dst_fmt = dst->format;
tmp_info.flags = info->flags;
/*
tmp_info.r = info->r;
tmp_info.g = info->g;
tmp_info.b = info->b;
tmp_info.a = info->a;
*/
tmp_info.r = c0.r;
tmp_info.g = c0.g;
tmp_info.b = c0.b;
tmp_info.a = c0.a;
tmp_info.flags &= ~(SDL_COPY_MODULATE_COLOR | SDL_COPY_MODULATE_ALPHA);
if (c0.r != 255 || c1.r != 255 || c2.r != 255 ||
c0.g != 255 || c1.g != 255 || c2.g != 255 ||
c0.b != 255 || c1.b != 255 || c2.b != 255) {
tmp_info.flags |= SDL_COPY_MODULATE_COLOR;
}
if (c0.a != 255 || c1.a != 255 || c2.a != 255) {
tmp_info.flags |= SDL_COPY_MODULATE_ALPHA;
}
tmp_info.colorkey = info->colorkey;
/* src */
tmp_info.src = (Uint8 *) src_ptr;
tmp_info.src_pitch = src_pitch;
/* dst */
tmp_info.dst = (Uint8 *) dst_ptr;
tmp_info.dst_pitch = dst_pitch;
SDL_BlitTriangle_Slow(&tmp_info, s2_x_area, dstrect, area, bias_w0, bias_w1, bias_w2,
d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x,
s2s0_x, s2s1_x, s2s0_y, s2s1_y, w0_row, w1_row, w2_row,
c0, c1, c2, is_uniform);
goto end;
}
if (dstbpp == 4) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_TEXTCOORD
Uint32 *sptr = (Uint32 *)((Uint8 *) src_ptr + srcy * src_pitch);
*(Uint32 *)dptr = sptr[srcx];
}
TRIANGLE_END_LOOP
} else if (dstbpp == 3) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_TEXTCOORD
Uint8 *sptr = (Uint8 *)((Uint8 *) src_ptr + srcy * src_pitch);
dptr[0] = sptr[3 * srcx];
dptr[1] = sptr[3 * srcx + 1];
dptr[2] = sptr[3 * srcx + 2];
}
TRIANGLE_END_LOOP
} else if (dstbpp == 2) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_TEXTCOORD
Uint16 *sptr = (Uint16 *)((Uint8 *) src_ptr + srcy * src_pitch);
*(Uint16 *)dptr = sptr[srcx];
}
TRIANGLE_END_LOOP
} else if (dstbpp == 1) {
TRIANGLE_BEGIN_LOOP
{
TRIANGLE_GET_TEXTCOORD
Uint8 *sptr = (Uint8 *)((Uint8 *) src_ptr + srcy * src_pitch);
*dptr = sptr[srcx];
}
TRIANGLE_END_LOOP
}
end:
if (dst_locked) {
SDL_UnlockSurface(dst);
}
if (src_locked) {
SDL_UnlockSurface(src);
}
return ret;
}
#define FORMAT_ALPHA 0
#define FORMAT_NO_ALPHA -1
#define FORMAT_2101010 1
#define FORMAT_HAS_ALPHA(format) format == 0
#define FORMAT_HAS_NO_ALPHA(format) format < 0
static int SDL_INLINE detect_format(SDL_PixelFormat *pf) {
if (pf->format == SDL_PIXELFORMAT_ARGB2101010) {
return FORMAT_2101010;
} else if (pf->Amask) {
return FORMAT_ALPHA;
} else {
return FORMAT_NO_ALPHA;
}
}
static void
SDL_BlitTriangle_Slow(SDL_BlitInfo *info,
SDL_Point s2_x_area, SDL_Rect dstrect, int area, int bias_w0, int bias_w1, int bias_w2,
int d2d1_y, int d1d2_x, int d0d2_y, int d2d0_x, int d1d0_y, int d0d1_x,
int s2s0_x, int s2s1_x, int s2s0_y, int s2s1_y, int w0_row, int w1_row, int w2_row,
SDL_Color c0, SDL_Color c1, SDL_Color c2, int is_uniform)
{
const int flags = info->flags;
Uint32 modulateR = info->r;
Uint32 modulateG = info->g;
Uint32 modulateB = info->b;
Uint32 modulateA = info->a;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
SDL_PixelFormat *src_fmt = info->src_fmt;
SDL_PixelFormat *dst_fmt = info->dst_fmt;
int srcbpp = src_fmt->BytesPerPixel;
int dstbpp = dst_fmt->BytesPerPixel;
int srcfmt_val;
int dstfmt_val;
Uint32 rgbmask = ~src_fmt->Amask;
Uint32 ckey = info->colorkey & rgbmask;
Uint8 *dst_ptr = info->dst;
int dst_pitch = info->dst_pitch;;
srcfmt_val = detect_format(src_fmt);
dstfmt_val = detect_format(dst_fmt);
TRIANGLE_BEGIN_LOOP
{
Uint8 *src;
Uint8 *dst = dptr;
TRIANGLE_GET_TEXTCOORD
src = (info->src + (srcy * info->src_pitch) + (srcx * srcbpp));
if (FORMAT_HAS_ALPHA(srcfmt_val)) {
DISEMBLE_RGBA(src, srcbpp, src_fmt, srcpixel, srcR, srcG, srcB, srcA);
} else if (FORMAT_HAS_NO_ALPHA(srcfmt_val)) {
DISEMBLE_RGB(src, srcbpp, src_fmt, srcpixel, srcR, srcG, srcB);
srcA = 0xFF;
} else {
/* SDL_PIXELFORMAT_ARGB2101010 */
srcpixel = *((Uint32 *)(src));
RGBA_FROM_ARGB2101010(srcpixel, srcR, srcG, srcB, srcA);
}
if (flags & SDL_COPY_COLORKEY) {
/* srcpixel isn't set for 24 bpp */
if (srcbpp == 3) {
srcpixel = (srcR << src_fmt->Rshift) |
(srcG << src_fmt->Gshift) | (srcB << src_fmt->Bshift);
}
if ((srcpixel & rgbmask) == ckey) {
continue;
}
}
if (FORMAT_HAS_ALPHA(dstfmt_val)) {
DISEMBLE_RGBA(dst, dstbpp, dst_fmt, dstpixel, dstR, dstG, dstB, dstA);
} else if (FORMAT_HAS_NO_ALPHA(dstfmt_val)) {
DISEMBLE_RGB(dst, dstbpp, dst_fmt, dstpixel, dstR, dstG, dstB);
dstA = 0xFF;
} else {
/* SDL_PIXELFORMAT_ARGB2101010 */
dstpixel = *((Uint32 *)(dst));
RGBA_FROM_ARGB2101010(dstpixel, dstR, dstG, dstB, dstA);
}
if (! is_uniform) {
TRIANGLE_GET_COLOR
modulateR = r;
modulateG = g;
modulateB = b;
modulateA = a;
}
if (flags & SDL_COPY_MODULATE_COLOR) {
srcR = (srcR * modulateR) / 255;
srcG = (srcG * modulateG) / 255;
srcB = (srcB * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
srcA = (srcA * modulateA) / 255;
}
if (flags & (SDL_COPY_BLEND | SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_BLEND | SDL_COPY_ADD | SDL_COPY_MOD | SDL_COPY_MUL)) {
case 0:
dstR = srcR;
dstG = srcG;
dstB = srcB;
dstA = srcA;
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
dstA = srcA + ((255 - srcA) * dstA) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR;
if (dstR > 255)
dstR = 255;
dstG = srcG + dstG;
if (dstG > 255)
dstG = 255;
dstB = srcB + dstB;
if (dstB > 255)
dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
case SDL_COPY_MUL:
dstR = ((srcR * dstR) + (dstR * (255 - srcA))) / 255;
if (dstR > 255)
dstR = 255;
dstG = ((srcG * dstG) + (dstG * (255 - srcA))) / 255;
if (dstG > 255)
dstG = 255;
dstB = ((srcB * dstB) + (dstB * (255 - srcA))) / 255;
if (dstB > 255)
dstB = 255;
dstA = ((srcA * dstA) + (dstA * (255 - srcA))) / 255;
if (dstA > 255)
dstA = 255;
break;
}
if (FORMAT_HAS_ALPHA(dstfmt_val)) {
ASSEMBLE_RGBA(dst, dstbpp, dst_fmt, dstR, dstG, dstB, dstA);
} else if (FORMAT_HAS_NO_ALPHA(dstfmt_val)) {
ASSEMBLE_RGB(dst, dstbpp, dst_fmt, dstR, dstG, dstB);
} else {
/* SDL_PIXELFORMAT_ARGB2101010 */
Uint32 pixel;
ARGB2101010_FROM_RGBA(pixel, dstR, dstG, dstB, dstA);
*(Uint32 *)dst = pixel;
}
}
TRIANGLE_END_LOOP
}
#endif /* SDL_VIDEO_RENDER_PS2 && !SDL_RENDER_DISABLED */ #endif /* SDL_VIDEO_RENDER_PS2 && !SDL_RENDER_DISABLED */
/* vi: set ts=4 sw=4 expandtab: */ /* vi: set ts=4 sw=4 expandtab: */