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RaylibSIMD_ImageDrawRectangleRec support all image formats as per textures.c

This commit is contained in:
doyle 2020-07-05 01:11:06 +10:00
parent 5af73c068f
commit cc75695dc3
1 changed files with 103 additions and 36 deletions
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139
RaylibSIMD.h
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@ -514,63 +514,130 @@ void RaylibSIMD_ImageDrawRectangleRec(Image *dst, Rectangle rec, Color color)
// Security check to avoid program crash
if ((dst->data == NULL) || (dst->width == 0) || (dst->height == 0)) return;
if (dst->format == UNCOMPRESSED_R8G8B8A8 || dst->format == UNCOMPRESSED_R8G8B8)
// TODO(doyle): Grayscale, Gray Alpha, R5G6B5, R5G5B5A1, R4G4B4A4 haven't
// been tested yet but, I wrote this function to technically be agnostic of
// the storage format. It probably works but should be checked.
__m128i color_4x = {0};
switch(dst->format)
{
Rectangle dst_rect = (Rectangle){0, 0, dst->width, dst->height};
rec = RaylibSIMD__RectangleIntersection(dst_rect, rec);
default: break;
case UNCOMPRESSED_GRAYSCALE:
{
float r01 = RS_CAST(float) color.r / 255.0f;
float g01 = RS_CAST(float) color.g / 255.0f;
float b01 = RS_CAST(float) color.b / 255.0f;
int const bits_per_pixel = RaylibSIMD__FormatToBitsPerPixel(dst->format);
int const bytes_per_pixel = bits_per_pixel / 8;
unsigned char gray = RS_CAST(unsigned char)((r01 * 0.299f + g01 * 0.587f + b01 * 0.114f) * 255.0f);
color_4x = _mm_set1_epi8(gray);
} break;
int const pixels_per_simd_write = sizeof(__m128i) / bytes_per_pixel;
int const bytes_per_simd_write = pixels_per_simd_write * bytes_per_pixel;
case UNCOMPRESSED_GRAY_ALPHA:
{
float r01 = RS_CAST(float) color.r / 255.0f;
float g01 = RS_CAST(float) color.g / 255.0f;
float b01 = RS_CAST(float) color.b / 255.0f;
unsigned char gray = RS_CAST(unsigned char)((r01 * 0.299f + g01 * 0.587f + b01 * 0.114f) * 255.0f);
color_4x = _mm_setr_epi8(gray, color.a,
gray, color.a,
gray, color.a,
gray, color.a,
gray, color.a,
gray, color.a,
gray, color.a,
gray, color.a);
int const simd_iterations = RS_CAST(int)(rec.width * bytes_per_pixel) / sizeof(__m128i);
int const remaining_iterations = rec.width - (pixels_per_simd_write * simd_iterations);
} break;
int const stride = dst->width * bytes_per_pixel;
int const row_offset = (rec.y * stride) + rec.x * bytes_per_pixel;
__m128i color_u32_4x = {0};
if (dst->format == UNCOMPRESSED_R8G8B8A8)
case UNCOMPRESSED_R8G8B8A8:
{
uint32_t color_u32 = RaylibSIMD__ColorToU32(color);
color_u32_4x = _mm_set1_epi32(color_u32);
color_4x = _mm_set1_epi32(color_u32);
}
else
break;
case UNCOMPRESSED_R8G8B8:
{
char r = RS_CAST(char)color.r;
char g = RS_CAST(char)color.g;
char b = RS_CAST(char)color.b;
color_u32_4x = _mm_setr_epi8(r, g, b,
r, g, b,
r, g, b,
r, g, b,
r, g, b,
r);
color_4x = _mm_setr_epi8(r, g, b,
r, g, b,
r, g, b,
r, g, b,
r, g, b,
r);
}
break;
for (int y = 0; y < RS_CAST(int)rec.height; y++)
case UNCOMPRESSED_R5G6B5:
case UNCOMPRESSED_R5G5B5A1:
case UNCOMPRESSED_R4G4B4A4:
{
unsigned char *dest = RS_CAST(unsigned char *)dst->data + (row_offset + (stride * y));
for (int iteration = 0; iteration < simd_iterations; iteration++)
float r01 = RS_CAST(float) color.r / 255.0f;
float g01 = RS_CAST(float) color.g / 255.0f;
float b01 = RS_CAST(float) color.b / 255.0f;
float a01 = RS_CAST(float) color.a / 255.0f;
uint16_t rgba = 0;
if (dst->format == UNCOMPRESSED_R5G6B5)
{
_mm_storeu_si128(RS_CAST(__m128i *)dest, color_u32_4x);
dest += bytes_per_simd_write;
char r = RS_CAST(char)(r01 * 31.f);
char g = RS_CAST(char)(g01 * 63.f);
char b = RS_CAST(char)(b01 * 31.f);
rgba = r << 11 | g << 5 | b << 0;
}
else if (dst->format == UNCOMPRESSED_R5G5B5A1)
{
char r = RS_CAST(char)(r01 * 31.f);
char g = RS_CAST(char)(g01 * 31.f);
char b = RS_CAST(char)(b01 * 31.f);
char a = RS_CAST(char)(a01 * 31.f);
rgba = r << 11 | g << 6 | b << 1 | a << 0;
}
else if (dst->format == UNCOMPRESSED_R4G4B4A4)
{
char r = RS_CAST(char)(r01 * 15.f);
char g = RS_CAST(char)(g01 * 15.f);
char b = RS_CAST(char)(b01 * 15.f);
char a = RS_CAST(char)(a01 * 15.f);
rgba = r << 12 | g << 8 | b << 4 | a << 0;
}
for (int iteration = 0; iteration < remaining_iterations; iteration++)
{
SetPixelColor(dest, color, dst->format);
dest += bytes_per_pixel;
}
color_4x = _mm_set1_epi32((rgba << 0) | (rgba << 16));
}
break;
}
else
Rectangle dst_rect = (Rectangle){0, 0, dst->width, dst->height};
rec = RaylibSIMD__RectangleIntersection(dst_rect, rec);
int const bits_per_pixel = RaylibSIMD__FormatToBitsPerPixel(dst->format);
int const bytes_per_pixel = bits_per_pixel / 8;
int const pixels_per_simd_write = sizeof(__m128i) / bytes_per_pixel;
int const bytes_per_simd_write = pixels_per_simd_write * bytes_per_pixel;
int const simd_iterations = RS_CAST(int)(rec.width * bytes_per_pixel) / sizeof(__m128i);
int const remaining_iterations = rec.width - (pixels_per_simd_write * simd_iterations);
int const stride = dst->width * bytes_per_pixel;
int const row_offset = (rec.y * stride) + rec.x * bytes_per_pixel;
for (int y = 0; y < RS_CAST(int)rec.height; y++)
{
Image imRec = RaylibSIMD_GenImageColor((int)rec.width, (int)rec.height, color);
RaylibSIMD_ImageDraw(dst, imRec, (Rectangle){0.f, 0.f, RS_CAST(float)rec.width, RS_CAST(float)rec.height}, rec, WHITE);
UnloadImage(imRec);
unsigned char *dest = RS_CAST(unsigned char *)dst->data + (row_offset + (stride * y));
for (int iteration = 0; iteration < simd_iterations; iteration++)
{
_mm_storeu_si128(RS_CAST(__m128i *)dest, color_4x);
dest += bytes_per_simd_write;
}
for (int iteration = 0; iteration < remaining_iterations; iteration++)
{
SetPixelColor(dest, color, dst->format);
dest += bytes_per_pixel;
}
}
}