/*

Simple DirectMedia Layer

This software is provided 'as-is', without any express or implied

warranty. In no event will the authors be held liable for any damages

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

*/

#include "../SDL_internal.h"

#include "SDL_video.h"

#include "SDL_blit.h"

#ifdef __SSE__

/* *INDENT-OFF* */

#ifdef _MSC_VER

#define SSE_BEGIN \

__m128 c128; \

c128.m128_u32[0] = color; \

c128.m128_u32[1] = color; \

c128.m128_u32[2] = color; \

c128.m128_u32[3] = color;

#else

#define SSE_BEGIN \

__m128 c128; \

DECLARE_ALIGNED(Uint32, cccc[4], 16); \

cccc[0] = color; \

cccc[1] = color; \

cccc[2] = color; \

cccc[3] = color; \

c128 = *(__m128 *)cccc;

#endif

#define SSE_WORK \

for (i = n / 64; i--;) { \

_mm_stream_ps((float *)(p+0), c128); \

_mm_stream_ps((float *)(p+16), c128); \

_mm_stream_ps((float *)(p+32), c128); \

_mm_stream_ps((float *)(p+48), c128); \

p += 64; \

}

#define SSE_END

#define DEFINE_SSE_FILLRECT(bpp, type) \

static void \

SDL_FillRect##bpp##SSE(Uint8 *pixels, int pitch, Uint32 color, int w, int h) \

{ \

int i, n; \

Uint8 *p = NULL; \

\

SSE_BEGIN; \

\

while (h--) { \

n = w * bpp; \

p = pixels; \

\

if (n > 63) { \

int adjust = 16 - ((uintptr_t)p & 15); \

if (adjust < 16) { \

n -= adjust; \

adjust /= bpp; \

while (adjust--) { \

*((type *)p) = (type)color; \

p += bpp; \

} \

} \

SSE_WORK; \

} \

if (n & 63) { \

int remainder = (n & 63); \

remainder /= bpp; \

while (remainder--) { \

*((type *)p) = (type)color; \

p += bpp; \

} \

} \

pixels += pitch; \

} \

\

SSE_END; \

}

static void

SDL_FillRect1SSE(Uint8 *pixels, int pitch, Uint32 color, int w, int h)

{

int i, n;

SSE_BEGIN;

while (h--) {

Uint8 *p = pixels;

n = w;

if (n > 63) {

int adjust = 16 - ((uintptr_t)p & 15);

if (adjust) {

n -= adjust;

SDL_memset(p, color, adjust);

p += adjust;

}

SSE_WORK;

}

if (n & 63) {

int remainder = (n & 63);

SDL_memset(p, color, remainder);

}

pixels += pitch;

}

SSE_END;

}

/* DEFINE_SSE_FILLRECT(1, Uint8) */

DEFINE_SSE_FILLRECT(2, Uint16)

DEFINE_SSE_FILLRECT(4, Uint32)

/* *INDENT-ON* */

#endif /* __SSE__ */

static void

SDL_FillRect1(Uint8 * pixels, int pitch, Uint32 color, int w, int h)

{

int n;

Uint8 *p = NULL;

while (h--) {

n = w;

p = pixels;

if (n > 3) {

switch ((uintptr_t) p & 3) {

case 1:

*p++ = (Uint8) color;

case 2:

*p++ = (Uint8) color;

case 3:

*p++ = (Uint8) color;

}

SDL_memset4(p, color, (n >> 2));

}

if (n & 3) {

p += (n & ~3);

switch (n & 3) {

case 3:

}

}

pixels += pitch;

}

}

static void

SDL_FillRect2(Uint8 * pixels, int pitch, Uint32 color, int w, int h)

{

int n;

Uint16 *p = NULL;

while (h--) {

n = w;

p = (Uint16 *) pixels;

if (n > 1) {

if ((uintptr_t) p & 2) {

*p++ = (Uint16) color;

--n;

}

SDL_memset4(p, color, (n >> 1));

}

if (n & 1) {

p[n - 1] = (Uint16) color;

}

pixels += pitch;

}

}

static void

SDL_FillRect3(Uint8 * pixels, int pitch, Uint32 color, int w, int h)

{

#if SDL_BYTEORDER == SDL_LIL_ENDIAN

Uint8 b1 = (Uint8) (color & 0xFF);

Uint8 b2 = (Uint8) ((color >> 8) & 0xFF);

Uint8 b3 = (Uint8) ((color >> 16) & 0xFF);

#elif SDL_BYTEORDER == SDL_BIG_ENDIAN

Uint8 b1 = (Uint8) ((color >> 16) & 0xFF);

Uint8 b2 = (Uint8) ((color >> 8) & 0xFF);

Uint8 b3 = (Uint8) (color & 0xFF);

#endif

int n;

Uint8 *p = NULL;

while (h--) {

n = w;

p = pixels;

while (n--) {

*p++ = b1;

*p++ = b2;

*p++ = b3;

}

pixels += pitch;

}

}

static void

SDL_FillRect4(Uint8 * pixels, int pitch, Uint32 color, int w, int h)

{

while (h--) {

SDL_memset4(pixels, color, w);

pixels += pitch;

}

}

/*

* This function performs a fast fill of the given rectangle with 'color'

*/

int

SDL_FillRect(SDL_Surface * dst, const SDL_Rect * rect, Uint32 color)

{

if (!dst) {

return SDL_SetError("Passed NULL destination surface");

}

/* If 'rect' == NULL, then fill the whole surface */

rect = &dst->clip_rect;

/* Don't attempt to fill if the surface's clip_rect is empty */

if (SDL_RectEmpty(rect)) {

return 0;

}

}

return SDL_FillRects(dst, rect, 1, color);

}

#if SDL_ARM_NEON_BLITTERS

void FillRect8ARMNEONAsm(int32_t w, int32_t h, uint8_t *dst, int32_t dst_stride, uint8_t src);

void FillRect16ARMNEONAsm(int32_t w, int32_t h, uint16_t *dst, int32_t dst_stride, uint16_t src);

void FillRect32ARMNEONAsm(int32_t w, int32_t h, uint32_t *dst, int32_t dst_stride, uint32_t src);

static void fill_8_neon(Uint8 * pixels, int pitch, Uint32 color, int w, int h) {

FillRect8ARMNEONAsm(w, h, (uint8_t *) pixels, pitch >> 0, color);

return;

}

static void fill_16_neon(Uint8 * pixels, int pitch, Uint32 color, int w, int h) {

FillRect16ARMNEONAsm(w, h, (uint16_t *) pixels, pitch >> 1, color);

return;

}

static void fill_32_neon(Uint8 * pixels, int pitch, Uint32 color, int w, int h) {

FillRect32ARMNEONAsm(w, h, (uint32_t *) pixels, pitch >> 2, color);

return;

}

#endif

#if SDL_ARM_SIMD_BLITTERS

void FillRect8ARMSIMDAsm(int32_t w, int32_t h, uint8_t *dst, int32_t dst_stride, uint8_t src);

void FillRect16ARMSIMDAsm(int32_t w, int32_t h, uint16_t *dst, int32_t dst_stride, uint16_t src);

void FillRect32ARMSIMDAsm(int32_t w, int32_t h, uint32_t *dst, int32_t dst_stride, uint32_t src);

static void fill_8_simd(Uint8 * pixels, int pitch, Uint32 color, int w, int h) {

FillRect8ARMSIMDAsm(w, h, (uint8_t *) pixels, pitch >> 0, color);

return;

}

static void fill_16_simd(Uint8 * pixels, int pitch, Uint32 color, int w, int h) {

FillRect16ARMSIMDAsm(w, h, (uint16_t *) pixels, pitch >> 1, color);

return;

}

static void fill_32_simd(Uint8 * pixels, int pitch, Uint32 color, int w, int h) {

FillRect32ARMSIMDAsm(w, h, (uint32_t *) pixels, pitch >> 2, color);

return;

}

#endif

int

SDL_FillRects(SDL_Surface * dst, const SDL_Rect * rects, int count,

Uint32 color)

{

SDL_Rect clipped;

Uint8 *pixels;

const SDL_Rect* rect;

int i;

if (!dst) {

return SDL_SetError("Passed NULL destination surface");

}

/* This function doesn't work on surfaces < 8 bpp */

if (dst->format->BitsPerPixel < 8) {

return SDL_SetError("SDL_FillRect(): Unsupported surface format");

}

/* Perform software fill */

if (!dst->pixels) {

return SDL_SetError("SDL_FillRect(): You must lock the surface");

}

if (!rects) {

return SDL_SetError("SDL_FillRects() passed NULL rects");

}

switch (dst->format->BytesPerPixel) {

case 1:

break;

case 2:

break;

case 4:

break;

}

}

#endif

switch (dst->format->BytesPerPixel) {

case 1:

break;

case 2:

break;

case 4:

break;

}

}

#endif

if (fill_function == NULL) {

switch (dst->format->BytesPerPixel) {

case 1:

{

color |= (color << 8);

color |= (color << 16);

if (SDL_HasSSE()) {

fill_function = SDL_FillRect1SSE;

break;

}

#endif

fill_function = SDL_FillRect1;

break;

}

case 2:

{

color |= (color << 16);

if (SDL_HasSSE()) {

fill_function = SDL_FillRect2SSE;

break;

}

#endif

fill_function = SDL_FillRect2;

break;

}

case 3:

/* 24-bit RGB is a slow path, at least for now. */

{

fill_function = SDL_FillRect3;

break;

}

case 4:

{

if (SDL_HasSSE()) {

fill_function = SDL_FillRect4SSE;

break;

}

#endif

fill_function = SDL_FillRect4;

break;

}

default:

return SDL_SetError("Unsupported pixel format");

}

}

for (i = 0; i < count; ++i) {

rect = &rects[i];

/* Perform clipping */

if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) {

continue;

}

rect = &clipped;

pixels = (Uint8 *) dst->pixels + rect->y * dst->pitch +

rect->x * dst->format->BytesPerPixel;

/* We're done! */

return 0;

}

/* vi: set ts=4 sw=4 expandtab: */