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Commit e4c73114 authored by Sam Lantinga's avatar Sam Lantinga
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In the process of adding rectangle drawing 

--HG--
rename : src/video/SDL_blendrect.c => src/video/SDL_blendfillrect.c
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404343
parent c7fe958b
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Inline Side-by-side
Showing with 543 additions and 39 deletions
include/SDL_surface.h
View file @ e4c73114
......@@ -416,7 +416,7 @@ extern DECLSPEC int SDLCALL SDL_DrawPoints
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BlendPoint
extern DECLSPEC int SDLCALL SDL_BlendDrawPoint
(SDL_Surface * dst, int x, int y,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
extern DECLSPEC int SDLCALL SDL_BlendPoints
......@@ -448,6 +448,35 @@ extern DECLSPEC int SDLCALL SDL_BlendLines
(SDL_Surface * dst, const SDL_Point * points, int count,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/**
* Draws the given rectangle with \c color.
*
* If \c rect is NULL, the whole surface will be outlined with \c color.
*
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_DrawRect
(SDL_Surface * dst, const SDL_Rect * rect, Uint32 color);
extern DECLSPEC int SDLCALL SDL_DrawRects
(SDL_Surface * dst, const SDL_Rect ** rects, int count, Uint32 color);
/**
* Blends the given rectangle with \c color.
*
* If \c rect is NULL, the whole surface will have a blended outline of \c color.
*
* \return 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BlendRect
(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
extern DECLSPEC int SDLCALL SDL_BlendRects
(SDL_Surface * dst, const SDL_Rect ** rects, int count,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
/**
* Performs a fast fill of the given rectangle with \c color.
*
......@@ -466,14 +495,14 @@ extern DECLSPEC int SDLCALL SDL_FillRects
/**
* Blends an RGBA value into the given rectangle.
*
* If \c rect is NULL, the whole surface will be filled with \c color.
* If \c rect is NULL, the whole surface will be blended with \c color.
*
* \return This function returns 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BlendRect
extern DECLSPEC int SDLCALL SDL_BlendFillRect
(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
extern DECLSPEC int SDLCALL SDL_BlendRects
extern DECLSPEC int SDLCALL SDL_BlendFillRects
(SDL_Surface * dst, const SDL_Rect ** rects, int count,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
......
src/video/SDL_blendrect.c → src/video/SDL_blendfillrect.c
View file @ e4c73114
......@@ -25,8 +25,8 @@
#include "SDL_draw.h"
static int
SDL_BlendRect_RGB555(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_BlendFillRect_RGB555(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
unsigned inva = 0xff - a;
......@@ -48,8 +48,8 @@ SDL_BlendRect_RGB555(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
}
static int
SDL_BlendRect_RGB565(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_BlendFillRect_RGB565(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
unsigned inva = 0xff - a;
......@@ -71,8 +71,8 @@ SDL_BlendRect_RGB565(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
}
static int
SDL_BlendRect_RGB888(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_BlendFillRect_RGB888(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
unsigned inva = 0xff - a;
......@@ -94,8 +94,8 @@ SDL_BlendRect_RGB888(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
}
static int
SDL_BlendRect_ARGB8888(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_BlendFillRect_ARGB8888(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
unsigned inva = 0xff - a;
......@@ -117,8 +117,8 @@ SDL_BlendRect_ARGB8888(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
}
static int
SDL_BlendRect_RGB(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_BlendFillRect_RGB(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
SDL_PixelFormat *fmt = dst->format;
unsigned inva = 0xff - a;
......@@ -163,8 +163,8 @@ SDL_BlendRect_RGB(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
}
static int
SDL_BlendRect_RGBA(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_BlendFillRect_RGBA(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
SDL_PixelFormat *fmt = dst->format;
unsigned inva = 0xff - a;
......@@ -193,7 +193,7 @@ SDL_BlendRect_RGBA(SDL_Surface * dst, const SDL_Rect * rect, int blendMode,
}
int
SDL_BlendRect(SDL_Surface * dst, const SDL_Rect * rect,
SDL_BlendFillRect(SDL_Surface * dst, const SDL_Rect * rect,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
SDL_Rect clipped;
......@@ -203,9 +203,14 @@ SDL_BlendRect(SDL_Surface * dst, const SDL_Rect * rect,
return -1;
}
if (blendMode < SDL_BLENDMODE_BLEND) {
Uint32 color = SDL_MapRGBA(dst->format, r, g, b, a);
return SDL_FillRect(dst, rect, color);
}
/* This function doesn't work on surfaces < 8 bpp */
if (dst->format->BitsPerPixel < 8) {
SDL_SetError("SDL_BlendRect(): Unsupported surface format");
SDL_SetError("SDL_BlendFillRect(): Unsupported surface format");
return -1;
}
......@@ -230,22 +235,22 @@ SDL_BlendRect(SDL_Surface * dst, const SDL_Rect * rect,
case 15:
switch (dst->format->Rmask) {
case 0x7C00:
return SDL_BlendRect_RGB555(dst, rect, blendMode, r, g, b, a);
return SDL_BlendFillRect_RGB555(dst, rect, blendMode, r, g, b, a);
}
break;
case 16:
switch (dst->format->Rmask) {
case 0xF800:
return SDL_BlendRect_RGB565(dst, rect, blendMode, r, g, b, a);
return SDL_BlendFillRect_RGB565(dst, rect, blendMode, r, g, b, a);
}
break;
case 32:
switch (dst->format->Rmask) {
case 0x00FF0000:
if (!dst->format->Amask) {
return SDL_BlendRect_RGB888(dst, rect, blendMode, r, g, b, a);
return SDL_BlendFillRect_RGB888(dst, rect, blendMode, r, g, b, a);
} else {
return SDL_BlendRect_ARGB8888(dst, rect, blendMode, r, g, b, a);
return SDL_BlendFillRect_ARGB8888(dst, rect, blendMode, r, g, b, a);
}
break;
}
......@@ -255,14 +260,14 @@ SDL_BlendRect(SDL_Surface * dst, const SDL_Rect * rect,
}
if (!dst->format->Amask) {
return SDL_BlendRect_RGB(dst, rect, blendMode, r, g, b, a);
return SDL_BlendFillRect_RGB(dst, rect, blendMode, r, g, b, a);
} else {
return SDL_BlendRect_RGBA(dst, rect, blendMode, r, g, b, a);
return SDL_BlendFillRect_RGBA(dst, rect, blendMode, r, g, b, a);
}
}
int
SDL_BlendRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
SDL_BlendFillRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
int blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
SDL_Rect clipped;
......@@ -276,9 +281,14 @@ SDL_BlendRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
return -1;
}
if (blendMode < SDL_BLENDMODE_BLEND) {
Uint32 color = SDL_MapRGBA(dst->format, r, g, b, a);
return SDL_FillRects(dst, rects, color);
}
/* This function doesn't work on surfaces < 8 bpp */
if (dst->format->BitsPerPixel < 8) {
SDL_SetError("SDL_BlendRects(): Unsupported surface format");
SDL_SetError("SDL_BlendFillRects(): Unsupported surface format");
return -1;
}
......@@ -293,22 +303,22 @@ SDL_BlendRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
case 15:
switch (dst->format->Rmask) {
case 0x7C00:
func = SDL_BlendRect_RGB555;
func = SDL_BlendFillRect_RGB555;
}
break;
case 16:
switch (dst->format->Rmask) {
case 0xF800:
func = SDL_BlendRect_RGB565;
func = SDL_BlendFillRect_RGB565;
}
break;
case 32:
switch (dst->format->Rmask) {
case 0x00FF0000:
if (!dst->format->Amask) {
func = SDL_BlendRect_RGB888;
func = SDL_BlendFillRect_RGB888;
} else {
func = SDL_BlendRect_ARGB8888;
func = SDL_BlendFillRect_ARGB8888;
}
break;
}
......@@ -319,9 +329,9 @@ SDL_BlendRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
if (!func) {
if (!dst->format->Amask) {
func = SDL_BlendRect_RGB;
func = SDL_BlendFillRect_RGB;
} else {
func = SDL_BlendRect_RGBA;
func = SDL_BlendFillRect_RGBA;
}
}
......
src/video/SDL_draw.h
View file @ e4c73114
......@@ -341,7 +341,44 @@ do { \
#define DRAWLINE(x0, y0, x1, y1, op) BRESENHAM(x0, y0, x1, y1, op)
/*
* Define blend fill macro
* Define draw rect macro
*/
#define DRAWRECT(type, op) \
do { \
int width = rect->w; \
int height = rect->h; \
int pitch = (dst->pitch / dst->format->BytesPerPixel); \
int skip = pitch - width; \
type *pixel; \
pixel = (type *)dst->pixels + rect->y * pitch + rect->x; \
{ int n = (width+3)/4; \
switch (width & 3) { \
case 0: do { op; pixel++; \
case 3: op; pixel++; \
case 2: op; pixel++; \
case 1: op; pixel++; \
} while ( --n > 0 ); \
} \
} \
pixel += skip; \
width -= 1; \
height -= 2; \
while (height--) { \
op; pixel += width; op; pixel += skip; \
} \
{ int n = (width+3)/4; \
switch (width & 3) { \
case 0: do { op; pixel++; \
case 3: op; pixel++; \
case 2: op; pixel++; \
case 1: op; pixel++; \
} while ( --n > 0 ); \
} \
} \
} while (0)
/*
* Define fill rect macro
*/
#define FILLRECT(type, op) \
......@@ -365,8 +402,4 @@ do { \
} \
} while (0)
/*
* Define blend line macro
*/
/* vi: set ts=4 sw=4 expandtab: */
src/video/SDL_drawrect.c 0 → 100644
View file @ e4c73114
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.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 \
DECLARE_ALIGNED(Uint32, cccc[4], 16); \
cccc[0] = color; \
cccc[1] = color; \
cccc[2] = color; \
cccc[3] = color; \
__m128 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_DrawRect##bpp##SSE(Uint8 *pixels, int pitch, Uint32 color, int w, int h) \
{ \
SSE_BEGIN; \
\
while (h--) { \
int i, n = w * bpp; \
Uint8 *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_DrawRect1SSE(Uint8 *pixels, int pitch, Uint32 color, int w, int h)
{
SSE_BEGIN;
while (h--) {
int i, n = w;
Uint8 *p = pixels;
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);
p += remainder;
}
pixels += pitch;
}
SSE_END;
}
/*DEFINE_SSE_FILLRECT(1, Uint8)*/
DEFINE_SSE_FILLRECT(2, Uint16)
DEFINE_SSE_FILLRECT(4, Uint32)
/* *INDENT-ON* */
#endif /* __SSE__ */
#ifdef __MMX__
/* *INDENT-OFF* */
#define MMX_BEGIN \
__m64 c64 = _mm_set_pi32(color, color)
#define MMX_WORK \
for (i = n / 64; i--;) { \
_mm_stream_pi((__m64 *)(p+0), c64); \
_mm_stream_pi((__m64 *)(p+8), c64); \
_mm_stream_pi((__m64 *)(p+16), c64); \
_mm_stream_pi((__m64 *)(p+24), c64); \
_mm_stream_pi((__m64 *)(p+32), c64); \
_mm_stream_pi((__m64 *)(p+40), c64); \
_mm_stream_pi((__m64 *)(p+48), c64); \
_mm_stream_pi((__m64 *)(p+56), c64); \
p += 64; \
}
#define MMX_END \
_mm_empty()
#define DEFINE_MMX_FILLRECT(bpp, type) \
static void \
SDL_DrawRect##bpp##MMX(Uint8 *pixels, int pitch, Uint32 color, int w, int h) \
{ \
MMX_BEGIN; \
\
while (h--) { \
int i, n = w * bpp; \
Uint8 *p = pixels; \
\
if (n > 63) { \
int adjust = 8 - ((uintptr_t)p & 7); \
if (adjust < 8) { \
n -= adjust; \
adjust /= bpp; \
while (adjust--) { \
*((type *)p) = (type)color; \
p += bpp; \
} \
} \
MMX_WORK; \
} \
if (n & 63) { \
int remainder = (n & 63); \
remainder /= bpp; \
while (remainder--) { \
*((type *)p) = (type)color; \
p += bpp; \
} \
} \
pixels += pitch; \
} \
\
MMX_END; \
}
static void
SDL_DrawRect1MMX(Uint8 *pixels, int pitch, Uint32 color, int w, int h)
{
MMX_BEGIN;
while (h--) {
int i, n = w;
Uint8 *p = pixels;
if (n > 63) {
int adjust = 8 - ((uintptr_t)p & 7);
if (adjust) {
n -= adjust;
SDL_memset(p, color, adjust);
p += adjust;
}
MMX_WORK;
}
if (n & 63) {
int remainder = (n & 63);
SDL_memset(p, color, remainder);
p += remainder;
}
pixels += pitch;
}
MMX_END;
}
/*DEFINE_MMX_FILLRECT(1, Uint8)*/
DEFINE_MMX_FILLRECT(2, Uint16)
DEFINE_MMX_FILLRECT(4, Uint32)
/* *INDENT-ON* */
#endif /* __MMX__ */
static void
SDL_DrawRect1(Uint8 * pixels, int pitch, Uint32 color, int w, int h)
{
while (h--) {
int n = w;
Uint8 *p = pixels;
if (n > 3) {
switch ((uintptr_t) p & 3) {
case 1:
*p++ = (Uint8) color;
--n;
case 2:
*p++ = (Uint8) color;
--n;
case 3:
*p++ = (Uint8) color;
--n;
}
SDL_memset4(p, color, (n >> 2));
}
if (n & 3) {
p += (n & ~3);
switch (n & 3) {
case 3:
*p++ = (Uint8) color;
case 2:
*p++ = (Uint8) color;
case 1:
*p++ = (Uint8) color;
}
}
pixels += pitch;
}
}
static void
SDL_DrawRect2(Uint8 * pixels, int pitch, Uint32 color, int w, int h)
{
while (h--) {
int n = w;
Uint16 *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_DrawRect3(Uint8 * pixels, int pitch, Uint32 color, int w, int h)
{
Uint8 r = (Uint8) ((color >> 16) & 0xFF);
Uint8 g = (Uint8) ((color >> 8) & 0xFF);
Uint8 b = (Uint8) (color & 0xFF);
while (h--) {
int n = w;
Uint8 *p = pixels;
while (n--) {
*p++ = r;
*p++ = g;
*p++ = b;
}
pixels += pitch;
}
}
static void
SDL_DrawRect4(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_DrawRect(SDL_Surface * dst, const SDL_Rect * rect, Uint32 color)
{
SDL_Rect clipped;
Uint8 *pixels;
if (!dst) {
SDL_SetError("Passed NULL destination surface");
return -1;
}
/* This function doesn't work on surfaces < 8 bpp */
if (dst->format->BitsPerPixel < 8) {
SDL_SetError("SDL_DrawRect(): Unsupported surface format");
return -1;
}
/* If 'rect' == NULL, then fill the whole surface */
if (rect) {
/* Perform clipping */
if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) {
return 0;
}
rect = &clipped;
} else {
rect = &dst->clip_rect;
}
/* Perform software fill */
if (!dst->pixels) {
SDL_SetError("SDL_DrawRect(): You must lock the surface");
return (-1);
}
pixels = (Uint8 *) dst->pixels + rect->y * dst->pitch +
rect->x * dst->format->BytesPerPixel;
switch (dst->format->BytesPerPixel) {
case 1:
{
color |= (color << 8);
color |= (color << 16);
#ifdef __SSE__
if (SDL_HasSSE()) {
SDL_DrawRect1SSE(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
#endif
#ifdef __MMX__
if (SDL_HasMMX()) {
SDL_DrawRect1MMX(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
#endif
SDL_DrawRect1(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
case 2:
{
color |= (color << 16);
#ifdef __SSE__
if (SDL_HasSSE()) {
SDL_DrawRect2SSE(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
#endif
#ifdef __MMX__
if (SDL_HasMMX()) {
SDL_DrawRect2MMX(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
#endif
SDL_DrawRect2(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
case 3:
/* 24-bit RGB is a slow path, at least for now. */
{
SDL_DrawRect3(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
case 4:
{
#ifdef __SSE__
if (SDL_HasSSE()) {
SDL_DrawRect4SSE(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
#endif
#ifdef __MMX__
if (SDL_HasMMX()) {
SDL_DrawRect4MMX(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
#endif
SDL_DrawRect4(pixels, dst->pitch, color, rect->w, rect->h);
break;
}
}
/* We're done! */
return 0;
}
int
SDL_DrawRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
Uint32 color)
{
int i;
int status = 0;
for (i = 0; i < count; ++i) {
status = SDL_DrawRect(dst, rects[i], color);
}
return status;
}
/* vi: set ts=4 sw=4 expandtab: */
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