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working text pipeline

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This commit is contained in:
Kbz-8
2023-04-11 13:21:11 +02:00
parent 77d71adc1f
commit 026f83ca81
9 changed files with 217 additions and 96 deletions
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74
src/renderer/text_pipeline.cpp
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@@ -6,7 +6,7 @@
/* By: maldavid <kbz_8.dev@akel-engine.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/04/06 16:41:13 by maldavid #+# #+# */
/* Updated: 2023/04/08 20:44:51 by maldavid ### ########.fr */
/* Updated: 2023/04/11 12:49:59 by maldavid ### ########.fr */
/* */
/* ************************************************************************** */
@@ -25,17 +25,53 @@ namespace mlx
{
uint8_t tmp_bitmap[512 * 512];
TextDrawData::TextDrawData(std::string text, int _color, int _x, int _y, TextLibrary& library, std::array<stbtt_bakedchar, 96>& cdata) : x(_x), y(_y), color(_color)
{
std::vector<Vertex> vertexData;
std::vector<uint16_t> indexData;
float stb_x = 0.0f;
float stb_y = 0.0f;
for(char c : text)
{
if(c < 32 || c > 127)
continue;
stbtt_aligned_quad q;
stbtt_GetBakedQuad(cdata.data(), 512, 512, c - 32, &stb_x, &stb_y, &q, 1);
std::size_t index = vertexData.size();
vertexData.emplace_back(glm::vec2{q.x0, q.y0}, glm::vec4{color & 0x00FF0000, color & 0x0000FF00, color & 0x000000FF, 0xFF}, glm::vec2{q.s0, q.t0});
vertexData.emplace_back(glm::vec2{q.x1, q.y0}, glm::vec4{color & 0x00FF0000, color & 0x0000FF00, color & 0x000000FF, 0xFF}, glm::vec2{q.s1, q.t0});
vertexData.emplace_back(glm::vec2{q.x1, q.y1}, glm::vec4{color & 0x00FF0000, color & 0x0000FF00, color & 0x000000FF, 0xFF}, glm::vec2{q.s1, q.t1});
vertexData.emplace_back(glm::vec2{q.x0, q.y1}, glm::vec4{color & 0x00FF0000, color & 0x0000FF00, color & 0x000000FF, 0xFF}, glm::vec2{q.s0, q.t1});
indexData.emplace_back(index + 0);
indexData.emplace_back(index + 1);
indexData.emplace_back(index + 2);
indexData.emplace_back(index + 2);
indexData.emplace_back(index + 3);
indexData.emplace_back(index + 0);
}
std::shared_ptr<TextData> text_data = std::make_shared<TextData>();
text_data->init(std::move(vertexData), std::move(indexData));
id = library.addTextToLibrary(text_data);
}
void TextPutPipeline::init(Renderer* renderer) noexcept
{
_renderer = renderer;
stbtt_BakeFontBitmap(opensans_regular_ttf, 0, 20.0f, tmp_bitmap, 512, 512, 32, 96, _cdata);
stbtt_BakeFontBitmap(opensans_regular_ttf, 0, 18.0f, tmp_bitmap, 512, 512, 32, 96, _cdata.data());
_atlas.create(tmp_bitmap, 512, 512, VK_FORMAT_R8_UNORM);
_atlas.setDescriptor(renderer->getFragDescriptorSet().duplicate());
}
void TextPutPipeline::put(int x, int y, int color, std::string str)
{
_drawlist.emplace(std::move(str), color, x, y);
_drawlist.emplace(std::move(str), color, x, y, _library, _cdata);
}
void TextPutPipeline::render()
@@ -43,39 +79,15 @@ namespace mlx
_atlas.updateSet(0);
for(auto& draw : _drawlist)
{
_atlas.setColor(draw.color);
int i = 0;
for(char c : draw.text)
{
if(c < 32 || c > 127)
continue;
stbtt_aligned_quad q;
float null_x = 0.0f;
float null_y = 0.0f;
stbtt_GetBakedQuad(_cdata, 512, 512, c - 32, &null_x, &null_y, &q, 1);
std::array<glm::vec2, 4> pos = {
glm::vec2{q.x0, q.y0},
glm::vec2{q.x1, q.y0},
glm::vec2{q.x1, q.y1},
glm::vec2{q.x0, q.y1}
};
std::array<glm::vec2, 4> uv = {
glm::vec2{q.s0, q.t0},
glm::vec2{q.s1, q.t0},
glm::vec2{q.s1, q.t1},
glm::vec2{q.s0, q.t1}
};
_atlas.render(*_renderer, draw.x, draw.y, std::move(pos), std::move(uv));
}
std::shared_ptr<TextData> draw_data = _library.getTextData(draw.id);
draw_data->bind(*_renderer);
_atlas.render(*_renderer, draw.x, draw.y, draw_data->getIBOsize());
}
}
void TextPutPipeline::destroy() noexcept
{
_library.clearLibrary();
_atlas.destroy();
}
}