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static void | SDL_DrawLine1 (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end) |
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static void | SDL_DrawLine2 (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end) |
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static void | SDL_DrawLine4 (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end) |
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static DrawLineFunc | SDL_CalculateDrawLineFunc (const SDL_PixelFormat *fmt) |
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int | SDL_DrawLine (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color) |
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int | SDL_DrawLines (SDL_Surface *dst, const SDL_Point *points, int count, Uint32 color) |
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◆ DrawLineFunc
◆ SDL_CalculateDrawLineFunc()
Definition at line 125 of file SDL_drawline.c.
References SDL_PixelFormat::BitsPerPixel, SDL_PixelFormat::BytesPerPixel, NULL, SDL_DrawLine1(), SDL_DrawLine2(), and SDL_DrawLine4().
Referenced by SDL_DrawLine(), and SDL_DrawLines().
static void SDL_DrawLine4(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
static void SDL_DrawLine2(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
static void SDL_DrawLine1(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
◆ SDL_DrawLine()
Definition at line 142 of file SDL_drawline.c.
References SDL_Surface::clip_rect, SDL_Surface::format, SDL_CalculateDrawLineFunc(), SDL_IntersectRectAndLine, SDL_SetError, and SDL_TRUE.
147 return SDL_SetError(
"SDL_DrawLine(): Passed NULL destination surface");
152 return SDL_SetError(
"SDL_DrawLine(): Unsupported surface format");
GLuint GLfloat GLfloat GLfloat x1
GLfixed GLfixed GLfixed y2
void(* DrawLineFunc)(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
static DrawLineFunc SDL_CalculateDrawLineFunc(const SDL_PixelFormat *fmt)
#define SDL_IntersectRectAndLine
◆ SDL_DrawLine1()
Definition at line 31 of file SDL_drawline.c.
References ABS, BLINE, SDL_PixelFormat::BytesPerPixel, DLINE, DRAW_FASTSETPIXEL1, DRAW_FASTSETPIXELXY1, SDL_Surface::format, if, SDL_Surface::pitch, SDL_Surface::pixels, SDL_memset, and VLINE.
Referenced by SDL_CalculateDrawLineFunc().
40 length = draw_end ? (
x2-
x1+1) : (
x2-
x1);
46 length = draw_end ? (
x1-
x2+1) : (
x1-
x2);
49 }
else if (
x1 ==
x2) {
GLuint GLfloat GLfloat GLfloat x1
#define BLINE(x1, y1, x2, y2, op, draw_end)
#define DRAW_FASTSETPIXELXY1(x, y)
GLfixed GLfixed GLfixed y2
#define VLINE(type, op, draw_end)
set set set set set set set macro pixldst1 abits if abits op else op endif endm macro pixldst2 abits if abits op else op endif endm macro pixldst4 abits if abits op else op endif endm macro pixldst0 abits op endm macro pixldst3 mem_operand op endm macro pixldst30 mem_operand op endm macro pixldst abits if abits elseif abits elseif abits elseif abits elseif abits pixldst0 abits else pixldst0 abits pixldst0 abits pixldst0 abits pixldst0 abits endif elseif abits else pixldst0 abits pixldst0 abits endif elseif abits else error unsupported bpp *numpix else pixst endif endm macro pixld1_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl else error unsupported endif endm macro pixld2_s mem_operand if mov asr add asl add asl mov asr sub UNIT_X add asl mov asr add asl add asl mov asr add UNIT_X add asl else pixld1_s mem_operand pixld1_s mem_operand endif endm macro pixld0_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl endif endm macro pixld_s_internal mem_operand if mem_operand pixld2_s mem_operand pixdeinterleave basereg elseif mem_operand elseif mem_operand elseif mem_operand elseif mem_operand pixld0_s mem_operand else pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else error unsupported mem_operand if bpp mem_operand endif endm macro vuzp8 reg2 vuzp d d ®2 endm macro vzip8 reg2 vzip d d ®2 endm macro pixdeinterleave basereg basereg basereg basereg basereg endif endm macro pixinterleave basereg basereg basereg basereg basereg endif endm macro PF boost_increment endif if endif PF tst PF addne PF subne PF cmp ORIG_W if endif if endif if endif PF subge ORIG_W PF subges if endif if endif if endif endif endm macro cache_preload_simple endif if dst_r_bpp pld [DST_R, #(PREFETCH_DISTANCE_SIMPLE *dst_r_bpp/8)] endif if mask_bpp pld if[MASK, #(PREFETCH_DISTANCE_SIMPLE *mask_bpp/8)] endif endif endm macro fetch_mask_pixblock pixld mask_basereg pixblock_size MASK endm macro ensure_destination_ptr_alignment process_pixblock_tail_head if beq irp local skip1(dst_w_bpp<=(lowbit *8)) &&((lowbit *8)<(pixblock_size *dst_w_bpp)) .if lowbit< 16 tst DST_R
#define DLINE(type, op, draw_end)
#define DRAW_FASTSETPIXEL1
GLuint GLsizei GLsizei * length
◆ SDL_DrawLine2()
Definition at line 59 of file SDL_drawline.c.
References AALINE, ABS, DLINE, DRAW_FASTSETPIXEL2, DRAW_FASTSETPIXELXY2, DRAW_SETPIXELXY2_BLEND_RGB, DRAW_SETPIXELXY_BLEND_RGB555, DRAW_SETPIXELXY_BLEND_RGB565, SDL_Surface::format, HLINE, SDL_PixelFormat::Rmask, SDL_GetRGBA, and VLINE.
Referenced by SDL_CalculateDrawLineFunc().
64 }
else if (
x1 ==
x2) {
72 if (fmt->
Rmask == 0x7C00) {
76 }
else if (fmt->
Rmask == 0xF800) {
GLuint GLfloat GLfloat GLfloat x1
GLfixed GLfixed GLfixed y2
#define DRAW_SETPIXELXY2_BLEND_RGB(x, y)
#define VLINE(type, op, draw_end)
#define DLINE(type, op, draw_end)
#define HLINE(type, op, draw_end)
#define DRAW_SETPIXELXY_BLEND_RGB555(x, y)
#define DRAW_FASTSETPIXELXY2(x, y)
#define AALINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end)
#define DRAW_SETPIXELXY_BLEND_RGB565(x, y)
#define DRAW_FASTSETPIXEL2
◆ SDL_DrawLine4()
Definition at line 89 of file SDL_drawline.c.
References AALINE, ABS, SDL_PixelFormat::Amask, DLINE, DRAW_FASTSETPIXEL4, DRAW_FASTSETPIXELXY4, DRAW_SETPIXELXY4_BLEND_RGB, DRAW_SETPIXELXY_BLEND_ARGB8888, DRAW_SETPIXELXY_BLEND_RGB888, SDL_Surface::format, HLINE, SDL_PixelFormat::Rmask, SDL_GetRGBA, and VLINE.
Referenced by SDL_CalculateDrawLineFunc().
94 }
else if (
x1 ==
x2) {
102 if (fmt->
Rmask == 0x00FF0000) {
GLuint GLfloat GLfloat GLfloat x1
#define DRAW_FASTSETPIXELXY4(x, y)
GLfixed GLfixed GLfixed y2
#define VLINE(type, op, draw_end)
#define DLINE(type, op, draw_end)
#define HLINE(type, op, draw_end)
#define DRAW_SETPIXELXY_BLEND_RGB888(x, y)
#define DRAW_SETPIXELXY4_BLEND_RGB(x, y)
#define DRAW_FASTSETPIXEL4
#define AALINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end)
#define DRAW_SETPIXELXY_BLEND_ARGB8888(x, y)
◆ SDL_DrawLines()
Definition at line 166 of file SDL_drawline.c.
References SDL_Surface::clip_rect, SDL_Surface::format, i, SDL_CalculateDrawLineFunc(), SDL_DrawPoint(), SDL_IntersectRectAndLine, SDL_SetError, SDL_Point::x, and SDL_Point::y.
Referenced by SW_RenderDrawLines().
176 return SDL_SetError(
"SDL_DrawLines(): Passed NULL destination surface");
181 return SDL_SetError(
"SDL_DrawLines(): Unsupported surface format");
184 for (i = 1; i <
count; ++
i) {
197 draw_end = (x2 != points[
i].
x || y2 != points[
i].
y);
199 func(dst, x1, y1, x2, y2,
color, draw_end);
201 if (points[0].
x != points[count-1].
x || points[0].
y != points[count-1].
y) {
GLuint GLfloat GLfloat GLfloat x1
GLint GLint GLint GLint GLint x
GLuint GLuint GLsizei count
GLfixed GLfixed GLfixed y2
void(* DrawLineFunc)(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
GLint GLint GLint GLint GLint GLint y
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
static DrawLineFunc SDL_CalculateDrawLineFunc(const SDL_PixelFormat *fmt)
#define SDL_IntersectRectAndLine
int SDL_DrawPoint(SDL_Surface *dst, int x, int y, Uint32 color)