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wined3d: Rewrite shader_glsl_expp() to properly take the write mask into account.

This commit is contained in:
H. Verbeet 2007-01-15 19:33:01 +01:00 committed by Alexandre Julliard
parent 2c60906ec4
commit 9857158a99
1 changed files with 26 additions and 16 deletions
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42
dlls/wined3d/glsl_shader.c
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@ -1093,26 +1093,36 @@ void shader_glsl_map2gl(SHADER_OPCODE_ARG* arg) {
* dst = 2^src; (partial precision is allowed, but optional)
*/
void shader_glsl_expp(SHADER_OPCODE_ARG* arg) {
IWineD3DBaseShaderImpl *shader = (IWineD3DBaseShaderImpl *)arg->shader;
char src_str[100];
char src_reg[50];
char src_mask[6];
char tmpLine[256];
char dst_str[100], src_str[100];
char dst_reg[50], src_reg[50];
char dst_mask[6], src_mask[6];
IWineD3DPixelShaderImpl* This = (IWineD3DPixelShaderImpl*) arg->shader;
DWORD hex_version = This->baseShader.hex_version;
shader_glsl_add_dst_param(arg, arg->dst, 0, dst_reg, dst_mask, dst_str);
shader_glsl_add_src_param_old(arg, arg->src[0], arg->src_addr[0], src_reg, src_mask, src_str);
shader_glsl_add_dst_old(arg->dst, dst_reg, dst_mask, tmpLine);
shader_glsl_add_src_param(arg, arg->src[0], arg->src_addr[0], WINED3DSP_WRITEMASK_0, src_reg, src_mask, src_str);
if (hex_version < WINED3DPS_VERSION(2,0)) {
shader_addline(arg->buffer, "tmp0.x = vec4(exp2(floor(%s))).x;\n", src_str);
shader_addline(arg->buffer, "tmp0.y = vec4(%s - floor(%s)).y;\n", src_str, src_str);
shader_addline(arg->buffer, "tmp0.z = vec4(exp2(%s)).x;\n", src_str);
if (shader->baseShader.hex_version < WINED3DPS_VERSION(2,0)) {
char dst_mask[6];
shader_addline(arg->buffer, "tmp0.x = exp2(floor(%s));\n", src_str);
shader_addline(arg->buffer, "tmp0.y = %s - floor(%s);\n", src_str, src_str);
shader_addline(arg->buffer, "tmp0.z = exp2(%s);\n", src_str);
shader_addline(arg->buffer, "tmp0.w = 1.0;\n");
shader_addline(arg->buffer, "%svec4(tmp0))%s;\n", tmpLine, dst_mask);
shader_glsl_append_dst(arg->buffer, arg);
shader_glsl_get_write_mask(arg->dst, dst_mask);
shader_addline(arg->buffer, "tmp0%s);\n", dst_mask);
} else {
shader_addline(arg->buffer, "%svec4(exp2(%s)))%s;\n", tmpLine, src_str, dst_mask);
DWORD write_mask;
size_t mask_size;
write_mask = shader_glsl_append_dst(arg->buffer, arg);
mask_size = shader_glsl_get_write_mask_size(write_mask);
if (mask_size > 1) {
shader_addline(arg->buffer, "vec%d(exp2(%s)));\n", mask_size, src_str);
} else {
shader_addline(arg->buffer, "exp2(%s));\n", src_str);
}
}
}