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wined3d: Introduce a helper function for printing floats in GLSL shaders.

This commit is contained in:
Henri Verbeet 2013-06-11 10:21:28 +02:00 committed by Alexandre Julliard
parent b02951dfa7
commit e0494afa00
3 changed files with 105 additions and 29 deletions
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7
dlls/wined3d/arb_program_shader.c
View File

@ -39,6 +39,13 @@ WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
WINE_DECLARE_DEBUG_CHANNEL(d3d_constants);
WINE_DECLARE_DEBUG_CHANNEL(d3d);
/* sRGB correction constants */
static const float srgb_cmp = 0.0031308f;
static const float srgb_mul_low = 12.92f;
static const float srgb_pow = 0.41666f;
static const float srgb_mul_high = 1.055f;
static const float srgb_sub_high = 0.055f;
static BOOL shader_is_pshader_version(enum wined3d_shader_type type)
{
return type == WINED3D_SHADER_TYPE_PIXEL;

120
dlls/wined3d/glsl_shader.c
View File

@ -47,6 +47,9 @@ WINE_DECLARE_DEBUG_CHANNEL(winediag);
#define WINED3D_GLSL_SAMPLE_LOD 0x4
#define WINED3D_GLSL_SAMPLE_GRAD 0x8
static const float srgb_const0[] = {0.41666f, 1.055f, 0.055f, 12.92f}; /* pow, mul_high, sub_high, mul_low */
static const float srgb_const1[] = {0.0031308f, 0.0f, 0.0f, 0.0f}; /* cmp */
struct glsl_dst_param
{
char reg_name[150];
@ -242,6 +245,64 @@ static const char *shader_glsl_get_prefix(enum wined3d_shader_type type)
}
}
/* This should be equivalent to using the %.8e format specifier, but always
* using '.' as decimal separator. This doesn't handle +/-INF or NAN, since
* the GLSL parser wouldn't be able to handle those anyway. */
static void shader_glsl_ftoa(float value, char *s)
{
int x, frac, exponent;
const char *sign = "";
double d;
d = value;
if (copysignf(1.0f, value) < 0.0f)
{
d = -d;
sign = "-";
}
if (d == 0.0f)
{
x = 0;
frac = 0;
exponent = 0;
}
else
{
double t, diff;
exponent = floorf(log10f(d));
d /= pow(10.0, exponent);
x = d;
t = (d - x) * 100000000;
frac = t;
diff = t - frac;
if ((diff > 0.5) || (diff == 0.5 && (frac & 1)))
{
if (++frac >= 100000000)
{
frac = 0;
++x;
}
}
}
sprintf(s, "%s%d.%08de%+03d", sign, x, frac, exponent);
}
static void shader_glsl_append_imm_vec4(struct wined3d_shader_buffer *buffer, const float *values)
{
char str[4][16];
shader_glsl_ftoa(values[0], str[0]);
shader_glsl_ftoa(values[1], str[1]);
shader_glsl_ftoa(values[2], str[2]);
shader_glsl_ftoa(values[3], str[3]);
shader_addline(buffer, "vec4(%s, %s, %s, %s)", str[0], str[1], str[2], str[3]);
}
/* Extract a line from the info log.
* Note that this modifies the source string. */
static char *get_info_log_line(char **ptr)
@ -1206,10 +1267,12 @@ static void shader_generate_glsl_declarations(const struct wined3d_context *cont
if (ps_args->srgb_correction)
{
shader_addline(buffer, "const vec4 srgb_const0 = vec4(%.8e, %.8e, %.8e, %.8e);\n",
srgb_pow, srgb_mul_high, srgb_sub_high, srgb_mul_low);
shader_addline(buffer, "const vec4 srgb_const1 = vec4(%.8e, 0.0, 0.0, 0.0);\n",
srgb_cmp);
shader_addline(buffer, "const vec4 srgb_const0 = ");
shader_glsl_append_imm_vec4(buffer, srgb_const0);
shader_addline(buffer, ";\n");
shader_addline(buffer, "const vec4 srgb_const1 = ");
shader_glsl_append_imm_vec4(buffer, srgb_const1);
shader_addline(buffer, ";\n");
}
if (reg_maps->vpos || reg_maps->usesdsy)
{
@ -1221,13 +1284,21 @@ static void shader_generate_glsl_declarations(const struct wined3d_context *cont
}
else
{
/* This happens because we do not have proper tracking of the constant registers that are
* actually used, only the max limit of the shader version
*/
float ycorrection[] =
{
context->render_offscreen ? 0.0f : fb->render_targets[0]->resource.height,
context->render_offscreen ? 1.0f : -1.0f,
0.0f,
0.0f,
};
/* This happens because we do not have proper tracking of the
* constant registers that are actually used, only the max
* limit of the shader version. */
FIXME("Cannot find a free uniform for vpos correction params\n");
shader_addline(buffer, "const vec4 ycorrection = vec4(%f, %f, 0.0, 0.0);\n",
context->render_offscreen ? 0.0f : fb->render_targets[0]->resource.height,
context->render_offscreen ? 1.0f : -1.0f);
shader_addline(buffer, "const vec4 ycorrection = ");
shader_glsl_append_imm_vec4(buffer, ycorrection);
shader_addline(buffer, ";\n");
}
shader_addline(buffer, "vec4 vpos;\n");
}
@ -1261,10 +1332,9 @@ static void shader_generate_glsl_declarations(const struct wined3d_context *cont
{
LIST_FOR_EACH_ENTRY(lconst, &shader->constantsF, struct wined3d_shader_lconst, entry)
{
const float *value;
value = (const float *)lconst->value;
shader_addline(buffer, "const vec4 %s_lc%u = vec4(%.8e, %.8e, %.8e, %.8e);\n",
prefix, lconst->idx, value[0], value[1], value[2], value[3]);
shader_addline(buffer, "const vec4 %s_lc%u = ", prefix, lconst->idx);
shader_glsl_append_imm_vec4(buffer, (const float *)lconst->value);
shader_addline(buffer, ";\n");
}
}
@ -1388,6 +1458,7 @@ static void shader_glsl_get_register_name(const struct wined3d_shader_register *
const struct wined3d_gl_info *gl_info = ins->ctx->gl_info;
const char *prefix = shader_glsl_get_prefix(version->type);
struct glsl_src_param rel_param0, rel_param1;
char imm_str[4][16];
if (reg->idx[0].offset != ~0U && reg->idx[0].rel_addr)
shader_glsl_add_src_param(ins, reg->idx[0].rel_addr, WINED3DSP_WRITEMASK_0, &rel_param0);
@ -1583,7 +1654,7 @@ static void shader_glsl_get_register_name(const struct wined3d_shader_register *
switch (reg->data_type)
{
case WINED3D_DATA_FLOAT:
sprintf(register_name, "%.8e", *(const float *)reg->immconst_data);
shader_glsl_ftoa(*(const float *)reg->immconst_data, register_name);
break;
case WINED3D_DATA_INT:
sprintf(register_name, "%#x", reg->immconst_data[0]);
@ -1603,9 +1674,12 @@ static void shader_glsl_get_register_name(const struct wined3d_shader_register *
switch (reg->data_type)
{
case WINED3D_DATA_FLOAT:
sprintf(register_name, "vec4(%.8e, %.8e, %.8e, %.8e)",
*(const float *)&reg->immconst_data[0], *(const float *)&reg->immconst_data[1],
*(const float *)&reg->immconst_data[2], *(const float *)&reg->immconst_data[3]);
shader_glsl_ftoa(*(const float *)&reg->immconst_data[0], imm_str[0]);
shader_glsl_ftoa(*(const float *)&reg->immconst_data[1], imm_str[1]);
shader_glsl_ftoa(*(const float *)&reg->immconst_data[2], imm_str[2]);
shader_glsl_ftoa(*(const float *)&reg->immconst_data[3], imm_str[3]);
sprintf(register_name, "vec4(%s, %s, %s, %s)",
imm_str[0], imm_str[1], imm_str[2], imm_str[3]);
break;
case WINED3D_DATA_INT:
sprintf(register_name, "ivec4(%#x, %#x, %#x, %#x)",
@ -5399,10 +5473,12 @@ static GLuint shader_glsl_generate_ffp_fragment_shader(struct wined3d_shader_buf
if (settings->sRGB_write)
{
shader_addline(buffer, "const vec4 srgb_const0 = vec4(%.8e, %.8e, %.8e, %.8e);\n",
srgb_pow, srgb_mul_high, srgb_sub_high, srgb_mul_low);
shader_addline(buffer, "const vec4 srgb_const1 = vec4(%.8e, 0.0, 0.0, 0.0);\n",
srgb_cmp);
shader_addline(buffer, "const vec4 srgb_const0 = ");
shader_glsl_append_imm_vec4(buffer, srgb_const0);
shader_addline(buffer, ";\n");
shader_addline(buffer, "const vec4 srgb_const1 = ");
shader_glsl_append_imm_vec4(buffer, srgb_const1);
shader_addline(buffer, ";\n");
}
shader_addline(buffer, "void main()\n{\n");

7
dlls/wined3d/wined3d_private.h
View File

@ -2854,13 +2854,6 @@ struct ps_np2fixup_info {
WORD num_consts;
};
/* sRGB correction constants */
static const float srgb_cmp = 0.0031308f;
static const float srgb_mul_low = 12.92f;
static const float srgb_pow = 0.41666f;
static const float srgb_mul_high = 1.055f;
static const float srgb_sub_high = 0.055f;
struct wined3d_palette
{
LONG ref;