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Distance field display work corectly (generation is slow but it work)

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This commit is contained in:
Edouard DUPIN 2012-09-06 18:42:06 +02:00
parent 022055b86e
commit 0a8b887984
5 changed files with 36 additions and 26 deletions
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2
Sources/libagg

@ -1 +1 @@
Subproject commit bfba3999b5cee49bd9a556f51170193849228a46
Subproject commit b3f1a97a28cce551e8685216a68e77a68904dde5

39
Sources/libewol/ewol/font/DistantFieldFont.cpp
View File

@ -55,6 +55,7 @@ static int32_t simpleSQRT(int32_t value)
return val;
}
#define SPECIAL_BORDER (5)
ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
ewol::Texture(fontName),
@ -92,7 +93,7 @@ ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
freeTypeFontElement_ts tmpchar1;
tmpchar1.property.m_UVal = 0;
m_listElement.PushBack(tmpchar1);
for (int32_t iii=0x20; iii<0xFF; iii++) {
for (int32_t iii=0x20/*'A'*/; iii</*'Z'*/0xFF; iii++) {
freeTypeFontElement_ts tmpchar;
tmpchar.property.m_UVal = iii;
m_listElement.PushBack(tmpchar);
@ -110,8 +111,8 @@ ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
int32_t nbElement = 0xFF - 0x20 + 1;
int32_t coter = simpleSQRT(nbElement);
// note : +1 is for the overlapping of the glyph (Part 1)
int32_t glyphMaxWidth = tmpproperty.m_advance.x +1;
int32_t glyphMaxHeight = tmpproperty.m_advance.y +1;
int32_t glyphMaxWidth = tmpproperty.m_advance.x +1 + SPECIAL_BORDER*2;
int32_t glyphMaxHeight = tmpproperty.m_advance.y +1 + SPECIAL_BORDER*2;
int32_t textureWidth = nextP2(coter*glyphMaxWidth);
int32_t nbRaws = textureWidth / glyphMaxWidth;
if (nbRaws <= 0) {
@ -134,10 +135,16 @@ ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
m_height = m_font->GetHeight(m_size);
draw::Image tmpUpScaledImage(Vector2D<int32_t>(1024,1024));
int32_t CurrentLineHigh = 0;
Vector2D<int32_t> glyphPosition(1,1);
for (int32_t iii=0; iii<m_listElement.Size(); iii++) {
if (true == m_font->GetGlyphProperty(m_size, m_listElement[iii].property)) {
EWOL_DEBUG("Generate Font Element : '" << m_listElement[iii].property.m_UVal << "'= '" << (char)m_listElement[iii].property.m_UVal << "'");
// clean the temporary image :
tmpUpScaledImage.SetFillColor(draw::Color(0xFFFFFF00));
tmpUpScaledImage.Clear();
/*
// check internal property:
// enought in the texture :
@ -157,12 +164,12 @@ ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
CurrentLineHigh = 0;
}
// draw the glyph
m_font->DrawGlyph(m_data, m_size, glyphPosition, m_listElement[iii].property);
m_font->DrawGlyph(tmpUpScaledImage, m_size*8, Vector2D<int32_t>(SPECIAL_BORDER*8,SPECIAL_BORDER*8), m_listElement[iii].property);
// set video position
m_listElement[iii].posStart.u = (float)(glyphPosition.x) / (float)textureWidth;
m_listElement[iii].posStart.v = (float)(glyphPosition.y) / (float)textureHeight;
m_listElement[iii].posStop.u = (float)(glyphPosition.x + m_listElement[iii].property.m_sizeTexture.x) / (float)textureWidth;
m_listElement[iii].posStop.v = (float)(glyphPosition.y + m_listElement[iii].property.m_sizeTexture.y) / (float)textureHeight;
m_listElement[iii].posStop.u = (float)(glyphPosition.x + m_listElement[iii].property.m_sizeTexture.x+2*SPECIAL_BORDER) / (float)textureWidth;
m_listElement[iii].posStop.v = (float)(glyphPosition.y + m_listElement[iii].property.m_sizeTexture.y+2*SPECIAL_BORDER) / (float)textureHeight;
/*
EWOL_DEBUG("generate '" << (char)m_listElement[iii].property.m_UVal << "'");
EWOL_DEBUG(" in tex : " << glyphPosition << " ==> " << m_listElement[iii].posStart.u<< "," << m_listElement[iii].posStart.v );
@ -170,15 +177,24 @@ ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
EWOL_DEBUG(" m_bearing =" << m_listElement[iii].property.m_bearing );
EWOL_DEBUG(" m_advance =" << m_listElement[iii].property.m_advance );
*/
// generate the distance field from this element ...
tmpUpScaledImage.DistanceField(Vector2D<int32_t>(0,0), m_listElement[iii].property.m_sizeTexture*Vector2D<int32_t>(8,8)+Vector2D<int32_t>(2*SPECIAL_BORDER*8,2*SPECIAL_BORDER*8));
// copy data with downscaling : (subSampling)
Vector2D<int32_t> tmpPos(0,0);
for (tmpPos.y = 0; tmpPos.y<m_listElement[iii].property.m_sizeTexture.y+2*SPECIAL_BORDER; tmpPos.y++) {
for (tmpPos.x = 0; tmpPos.x<m_listElement[iii].property.m_sizeTexture.x+2*SPECIAL_BORDER; tmpPos.x++) {
m_data.Set(glyphPosition + tmpPos, tmpUpScaledImage.Get(tmpPos*Vector2D<int32_t>(8,8) + Vector2D<int32_t>(4,4)) );
}
}
// update the maximum of the line hight :
if (CurrentLineHigh<m_listElement[iii].property.m_sizeTexture.y) {
if (CurrentLineHigh<m_listElement[iii].property.m_sizeTexture.y+1+2*SPECIAL_BORDER) {
// note : +1 is for the overlapping of the glyph (Part 2)
CurrentLineHigh = m_listElement[iii].property.m_sizeTexture.y+1;
CurrentLineHigh = m_listElement[iii].property.m_sizeTexture.y+1 + 2*SPECIAL_BORDER;
}
// note : +1 is for the overlapping of the glyph (Part 3)
// update the Bitmap position drawing :
glyphPosition.x += m_listElement[iii].property.m_sizeTexture.x+1;
glyphPosition.x += m_listElement[iii].property.m_sizeTexture.x+1 + 2*SPECIAL_BORDER;
}
}
@ -196,8 +212,7 @@ ewol::DistantFieldFont::DistantFieldFont(etk::UString fontName) :
}
#endif
EWOL_DEBUG("End generation of the Fond bitmap, start adding texture");
// generate the distance field from this element ...
m_data.DistanceField();
//m_data.DistanceField();
Flush();
}
@ -234,7 +249,7 @@ int32_t ewol::DistantFieldFont::Draw(Vector2D<float> textPos,
totalSize += ret;
}
#if 0
#if 1
// To display the texture ...
{
/* Bitmap position

12
Sources/libewol/ewol/openGL/Shader.cpp
View File

@ -110,32 +110,20 @@ bool ewol::Shader::CompileAndSendShader(void)
m_shader = 0;
return false;
}
EWOL_DEBUG(" --> Create");
m_shader = glCreateShader(m_type);
EWOL_DEBUG(" <-- Create");
if (!m_shader) {
EWOL_ERROR("glCreateShader return error ...");
EWOL_DEBUG(" --> checkGlError");
checkGlError("glCreateShader");
EWOL_DEBUG(" <-- checkGlError");
return false;
} else {
EWOL_DEBUG(" --> glShaderSource");
glShaderSource(m_shader, 1, (const char**)&m_fileData, NULL);
EWOL_DEBUG(" <-- glShaderSource");
EWOL_DEBUG(" --> glCompileShader");
glCompileShader(m_shader);
EWOL_DEBUG(" <-- glCompileShader");
GLint compiled = 0;
EWOL_DEBUG(" --> glGetShaderiv");
glGetShaderiv(m_shader, GL_COMPILE_STATUS, &compiled);
EWOL_DEBUG(" <-- glGetShaderiv");
if (!compiled) {
GLint infoLen = 0;
l_bufferDisplayError[0] = '\0';
EWOL_DEBUG(" --> glGetShaderInfoLog");
glGetShaderInfoLog(m_shader, LOG_OGL_INTERNAL_BUFFER_LEN, &infoLen, l_bufferDisplayError);
EWOL_DEBUG(" <-- glGetShaderInfoLog");
const char * tmpShaderType = "GL_FRAGMENT_SHADER";
if (m_type == GL_VERTEX_SHADER){
tmpShaderType = "GL_VERTEX_SHADER";

3
Sources/libewol/ewol/widget/Widget.cpp
View File

@ -277,8 +277,9 @@ void ewol::Widget::GenDraw(DrawProperty displayProp)
#ifdef __VIDEO__OPENGL_ES_2
#if 1
etk::Matrix tmpTranslate = etk::matrix::Translate(-m_size.x/2, -m_size.y/2, -1.0);
/*etk::Matrix tmpScale = etk::matrix::Scale(5, 5, 1.0);*/
etk::Matrix tmpProjection = etk::matrix::Perspective(-m_size.x/2, m_size.x/2, -m_size.y/2, m_size.y/2, -1, 1);
etk::Matrix tmpMat = tmpProjection * tmpTranslate;
etk::Matrix tmpMat = tmpProjection * /*tmpScale * */ tmpTranslate;
#else
etk::Matrix tmpMat = etk::matrix::Perspective(0, m_size.x, 0, m_size.y, -1, 1);
#endif

6
share/fontDistanceField/font1.frag
View File

@ -12,6 +12,7 @@ varying vec4 f_color;
void main(void) {
vec4 tmpcolor = texture2D(EW_texID, f_texcoord);
vec4 outColor = vec4(0,0,0,0);
/*
// compare distance with 0.5 that represent the middle ...
if (tmpcolor[3]>0.5) {
outColor = f_color;
@ -21,6 +22,11 @@ void main(void) {
outColor = f_color;
outColor[3] = (tmpcolor[3]-0.49)*1.0/0.02;
}
*/
outColor = f_color;// * tmpcolor[3];
outColor[3] = smoothstep(0.45, 0.55, tmpcolor[3]);
//outColor = vec4(0,0,0,0);
//outColor[3] = tmpcolor[3];
gl_FragColor = outColor;
}