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kojima
2000-02-16 18:22:46 +00:00
parent 23c40b0540
commit a0ebed9cb2
6 changed files with 195 additions and 41 deletions
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138
wrlib/x86_specific.c
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@@ -37,7 +37,7 @@ x86_check_mmx()
result = 0;
asm volatile
("pushal \n" // please don't forget this in any asm
("pushal \n" // please dont forget this in any asm
"pushfl \n" // check whether cpuid supported
"pop %%eax \n"
"movl %%eax, %%ebx \n"
@@ -83,7 +83,6 @@ x86_check_mmx()
void
x86_mmx_TrueColor_32_to_16(unsigned char *image, // 8
unsigned short *ximage, // 12
@@ -190,19 +189,25 @@ x86_mmx_TrueColor_32_to_16(unsigned char *image, // 8
"movzwl -24(%ebp), %ecx \n" // ecx = pixel.red
"movl 24(%ebp), %edi \n" // edi = rtable
//agi
"leal (%edi, %ecx, 2), %eax \n" // eax = &rtable[pixel.red]
// agi
"movw (%eax), %dx \n" // dx = rtable[pixel.red]
"movw %dx, -16(%ebp) \n" // save rr
"movzwl -22(%ebp), %ecx \n" // ecx = pixel.green
"movl 28(%ebp), %edi \n" // edi = gtable
//agi
"leal (%edi, %ecx, 2), %eax \n" // eax = &gtable[pixel.green]
//agi
"movw (%eax), %dx \n" // dx = gtable[pixel.green]
"movw %dx, -14(%ebp) \n" // save gg
"movzwl -20(%ebp), %ecx \n" // ecx = pixel.blue
"movl 32(%ebp), %edi \n" // ebx = btable
//agi
"leal (%edi, %ecx, 2), %eax \n" // eax = &btable[pixel.blue]
//agi
"movw (%eax), %dx \n" // dx = btable[pixel.blue]
"movw %dx, -12(%ebp) \n" // save bb
@@ -300,12 +305,127 @@ x86_mmx_TrueColor_32_to_16(unsigned char *image, // 8
}
void
x86_mmx_TrueColor_24_to_16(unsigned char *image, // 8
unsigned short *ximage, // 12
short *err, // 16
short *nerr, // 20
short *rtable, // 24
short *gtable, // 28
short *btable, // 32
int dr, // 36
int dg, // 40
int db, // 44
unsigned int roffs, // 48
unsigned int goffs, // 52
unsigned int boffs, // 56
int width, // 60
int height, // 64
int line_offset) // 68
{
/*
int x; //-4
long long rrggbbaa;// -16
long long pixel; //-24
short *tmp_err; //-32
short *tmp_nerr; //-36
*
int w1; // -64
int w2; // -68
*/
asm volatile
(
"subl $128, %esp \n" // alloc some more stack
"pushal \n"
"movl 60(%ebp), %eax \n" // eax = width
"movl %eax, %ebx \n"
"shrl $2, %eax \n"
"movl %eax, -64(%ebp) \n" // w1 = width / 4
"andl $3, %ebx \n"
"movl %ebx, -68(%ebp) \n" // w2 = width % 4
".LoopYc: \n"
"movl 60(%ebp), %eax \n"
"movl %eax, -4(%ebp) \n" // x = width
"decl 64(%ebp) \n" // height--
"js .Endc \n" // if height < 0 then end
"movl 64(%ebp), %eax \n"
"decl %eax \n" // y--
"movl %eax, 64(%ebp) \n"
"js .Endc \n" // if y < 0, goto end
"andl $1, %eax \n"
"jz .LoopY_1c \n" // if (y&1) goto LoopY_1
".LoopY_0c: \n"
"movl 16(%ebp), %ebx \n" // ebx = err
"movl %ebx, -36(%ebp) \n" // [-36] = err
"movl 20(%ebp), %eax \n" //
"movl %eax, -32(%ebp) \n" // [-32] = nerr
"jmp .LoopX_1c \n"
".LoopY_1c: \n"
"movl 20(%ebp), %ebx \n" // ebx = nerr
"movl %ebx, -36(%ebp) \n" // [-36] = nerr
"movl 16(%ebp), %eax \n" //
"movl %eax, -32(%ebp) \n" // [-32] = eerr
".align 16 \n"
"movl %eax, -4(%ebp) \n" // x = w1
".LoopX_1c: \n"
"decl -4(%ebp) \n" // x--
"js .Xend1_c \n" // if x < 0 then end
// do conversion of 4 pixels
"movq 16(%ebp), %mm0 \n" // mm0 = err
"jmp .LoopX_1c \n"
".Xend1_c: \n"
"movl -68(%ebp), %eax \n"
"movl %eax, -4(%ebp) \n" // x = w2
".LoopX_2c: \n"
"decl -4(%ebp) \n" // x--
"js .Xend2_c \n" //
// do conversion
"jmp .LoopX_2c \n"
".Xend2_c: \n"
"movl -64(%ebp), %eax \n"
"jmp .LoopYc \n"
".Endc: \n" // THE END
"emms \n"
"popal \n"
);
}
#endif /* ASM_X86_MMX */
void
x86_PseudoColor_to_8(unsigned char *image, // 8
x86_PseudoColor_32_to_8(unsigned char *image, // 8
unsigned char *ximage, // 12
char *err, // 16
char *nerr, // 20
@@ -364,7 +484,7 @@ x86_PseudoColor_to_8(unsigned char *image, // 8
".LoopY_0b: \n"
"movl 16(%ebp), %ebx \n" // ebx = err
// "movl %ebx, -36(%ebp) \n" // [-36] = err
//useless "movl %ebx, -36(%ebp) \n" // [-36] = err
"movl 20(%ebp), %ecx \n" //
"movl %ecx, -32(%ebp) \n" // [-32] = nerr
@@ -375,7 +495,7 @@ x86_PseudoColor_to_8(unsigned char *image, // 8
".LoopY_1b: \n"
"movl 20(%ebp), %ebx \n" // ebx = nerr
// "movl %ebx, -36(%ebp) \n" // [-36] = nerr
//useless "movl %ebx, -36(%ebp) \n" // [-36] = nerr
"movl 16(%ebp), %ecx \n" //
"movl %ecx, -32(%ebp) \n" // [-32] = err
@@ -404,7 +524,9 @@ x86_PseudoColor_to_8(unsigned char *image, // 8
".NEGRb: \n"
"xorw %dx, %dx \n"
".OKRb: \n"
//partial reg
"leal (%edi, %edx, 2), %ecx \n" // ecx = &ctable[pixel.red]
//agi
"movl (%ecx), %eax \n" // ax = ctable[pixel.red]
"movw %ax, -12(%ebp) \n" // save rr
@@ -448,7 +570,9 @@ x86_PseudoColor_to_8(unsigned char *image, // 8
".NEGGb: \n"
"xorw %dx, %dx \n"
".OKGb: \n"
// partial reg
"leal (%edi, %edx, 2), %ecx \n" // ecx = &ctable[pixel.grn]
//agi
"movw (%ecx), %ax \n" // ax = ctable[pixel.grn]
"movw %ax, -16(%ebp) \n" // save gg
@@ -493,7 +617,9 @@ x86_PseudoColor_to_8(unsigned char *image, // 8
".NEGBb: \n"
"xorw %dx, %dx \n"
".OKBb: \n"
//partial reg
"leal (%edi, %edx, 2), %ecx \n" // ecx = &ctable[pixel.blu]
//agi
"movw (%ecx), %ax \n" // ax = ctable[pixel.blu]
"movw %ax, -20(%ebp) \n" // save bb
@@ -532,7 +658,9 @@ x86_PseudoColor_to_8(unsigned char *image, // 8
"addw -20(%ebp), %ax \n" // ax = cpcpc*rr + cpc*gg + bb
"movl 40(%ebp), %ecx \n"
//agi
"leal (%ecx, %eax, 4), %edx \n"
//agi
"movb (%edx), %cl \n" // cl = pixels[ax]
// store the pixel