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wined3d: Cleanup & merge pshader_get_input_register_swizzle() and vshader_program_add_input_param_swizzle().

This commit is contained in:
H. Verbeet 2006-12-29 15:32:01 +01:00 committed by Alexandre Julliard
parent 0fae42da50
commit c8fc7df8a3
1 changed files with 25 additions and 70 deletions
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95
dlls/wined3d/arb_program_shader.c
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@ -220,82 +220,35 @@ static void shader_arb_get_write_mask(const DWORD param, char *write_mask) {
*ptr = '\0';
}
static void pshader_get_input_register_swizzle(const DWORD instr, char *swzstring) {
static const char swizzle_reg_chars[] = "rgba";
DWORD swizzle = (instr & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
static void shader_arb_get_swizzle(const DWORD param, BOOL fixup, char *swizzle_str) {
/* For registers of type WINED3DDECLTYPE_D3DCOLOR, data is stored as "bgra",
* but addressed as "rgba". To fix this we need to swap the register's x
* and z components. */
const char *swizzle_chars = fixup ? "zyxw" : "xyzw";
char *ptr = swizzle_str;
/* swizzle bits fields: wwzzyyxx */
DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
DWORD swizzle_x = swizzle & 0x03;
DWORD swizzle_y = (swizzle >> 2) & 0x03;
DWORD swizzle_z = (swizzle >> 4) & 0x03;
DWORD swizzle_w = (swizzle >> 6) & 0x03;
/**
* swizzle bits fields:
* WWZZYYXX
*/
*swzstring = 0;
if ((WINED3DSP_NOSWIZZLE >> WINED3DSP_SWIZZLE_SHIFT) != swizzle) {
if (swizzle_x == swizzle_y &&
swizzle_x == swizzle_z &&
swizzle_x == swizzle_w) {
sprintf(swzstring, ".%c", swizzle_reg_chars[swizzle_x]);
/* If the swizzle is the default swizzle (ie, "xyzw"), we don't need to
* generate a swizzle string. Unless we need to our own swizzling. */
if ((WINED3DSP_NOSWIZZLE >> WINED3DSP_SWIZZLE_SHIFT) != swizzle || fixup) {
*ptr++ = '.';
if (swizzle_x == swizzle_y && swizzle_x == swizzle_z && swizzle_x == swizzle_w) {
*ptr++ = swizzle_chars[swizzle_x];
} else {
sprintf(swzstring, ".%c%c%c%c",
swizzle_reg_chars[swizzle_x],
swizzle_reg_chars[swizzle_y],
swizzle_reg_chars[swizzle_z],
swizzle_reg_chars[swizzle_w]);
*ptr++ = swizzle_chars[swizzle_x];
*ptr++ = swizzle_chars[swizzle_y];
*ptr++ = swizzle_chars[swizzle_z];
*ptr++ = swizzle_chars[swizzle_w];
}
}
}
/* TODO: merge with pixel shader */
static void vshader_program_add_input_param_swizzle(const DWORD param, int is_color, char *hwLine) {
static const char swizzle_reg_chars_color_fix[] = "zyxw";
static const char swizzle_reg_chars[] = "xyzw";
const char* swizzle_regs = NULL;
char tmpReg[255];
/** operand input */
DWORD swizzle = (param & WINED3DVS_SWIZZLE_MASK) >> WINED3DVS_SWIZZLE_SHIFT;
DWORD swizzle_x = swizzle & 0x03;
DWORD swizzle_y = (swizzle >> 2) & 0x03;
DWORD swizzle_z = (swizzle >> 4) & 0x03;
DWORD swizzle_w = (swizzle >> 6) & 0x03;
if (is_color) {
swizzle_regs = swizzle_reg_chars_color_fix;
} else {
swizzle_regs = swizzle_reg_chars;
}
/**
* swizzle bits fields:
* WWZZYYXX
*/
if ((WINED3DVS_NOSWIZZLE >> WINED3DVS_SWIZZLE_SHIFT) == swizzle) {
if (is_color) {
sprintf(tmpReg, ".%c%c%c%c",
swizzle_regs[swizzle_x],
swizzle_regs[swizzle_y],
swizzle_regs[swizzle_z],
swizzle_regs[swizzle_w]);
strcat(hwLine, tmpReg);
}
return ;
}
if (swizzle_x == swizzle_y &&
swizzle_x == swizzle_z &&
swizzle_x == swizzle_w)
{
sprintf(tmpReg, ".%c", swizzle_regs[swizzle_x]);
strcat(hwLine, tmpReg);
} else {
sprintf(tmpReg, ".%c%c%c%c",
swizzle_regs[swizzle_x],
swizzle_regs[swizzle_y],
swizzle_regs[swizzle_z],
swizzle_regs[swizzle_w]);
strcat(hwLine, tmpReg);
}
*ptr = '\0';
}
static void pshader_get_register_name(
@ -412,7 +365,9 @@ static void vshader_program_add_param(SHADER_OPCODE_ARG *arg, const DWORD param,
shader_arb_get_write_mask(param, write_mask);
strcat(hwLine, write_mask);
} else {
vshader_program_add_input_param_swizzle(param, is_color, hwLine);
char swizzle[6];
shader_arb_get_swizzle(param, is_color, swizzle);
strcat(hwLine, swizzle);
}
}
@ -470,7 +425,7 @@ static void pshader_gen_input_modifier_line (
/* Get register name */
pshader_get_register_name(instr, regstr);
pshader_get_input_register_swizzle(instr, swzstr);
shader_arb_get_swizzle(instr, FALSE, swzstr);
switch (instr & WINED3DSP_SRCMOD_MASK) {
case WINED3DSPSM_NONE: