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#include <mbgl/renderer/painter.hpp>
#include <mbgl/renderer/debug_bucket.hpp>
#include <mbgl/map/map.hpp>
#include <mbgl/util/string.hpp>
using namespace mbgl;
void Painter::renderTileDebug(const Tile& tile) {
gl::group group(std::string { "debug " } + std::string(tile.id));
assert(tile.data);
if (debug) {
prepareTile(tile);
renderDebugText(tile.data->debugBucket, tile.matrix);
renderDebugFrame(tile.matrix);
}
}
void Painter::renderDebugText(DebugBucket& bucket, const mat4 &matrix) {
gl::group group("debug text");
MBGL_CHECK_ERROR(glDisable(GL_DEPTH_TEST));
useProgram(plainShader->program);
plainShader->u_matrix = matrix;
// Draw white outline
plainShader->u_color = {{ 1.0f, 1.0f, 1.0f, 1.0f }};
lineWidth(4.0f * state.getPixelRatio());
bucket.drawLines(*plainShader);
#ifndef GL_ES_VERSION_2_0
// Draw line "end caps"
MBGL_CHECK_ERROR(glPointSize(2));
bucket.drawPoints(*plainShader);
#endif
// Draw black text.
plainShader->u_color = {{ 0.0f, 0.0f, 0.0f, 1.0f }};
lineWidth(2.0f * state.getPixelRatio());
bucket.drawLines(*plainShader);
MBGL_CHECK_ERROR(glEnable(GL_DEPTH_TEST));
}
void Painter::renderDebugFrame(const mat4 &matrix) {
gl::group group("debug frame");
// Disable depth test and don't count this towards the depth buffer,
// but *don't* disable stencil test, as we want to clip the red tile border
// to the tile viewport.
MBGL_CHECK_ERROR(glDisable(GL_DEPTH_TEST));
useProgram(plainShader->program);
plainShader->u_matrix = matrix;
// draw tile outline
tileBorderArray.bind(*plainShader, tileBorderBuffer, BUFFER_OFFSET(0));
plainShader->u_color = {{ 1.0f, 0.0f, 0.0f, 1.0f }};
lineWidth(4.0f * state.getPixelRatio());
MBGL_CHECK_ERROR(glDrawArrays(GL_LINE_STRIP, 0, (GLsizei)tileBorderBuffer.index()));
MBGL_CHECK_ERROR(glEnable(GL_DEPTH_TEST));
}
void Painter::renderDebugText(const std::vector<std::string> &strings) {
if (strings.empty()) {
return;
}
gl::group group("debug text");
MBGL_CHECK_ERROR(glDisable(GL_DEPTH_TEST));
MBGL_CHECK_ERROR(glStencilFunc(GL_ALWAYS, 0xFF, 0xFF));
useProgram(plainShader->program);
plainShader->u_matrix = nativeMatrix;
DebugFontBuffer debugFontBuffer;
int line = 25;
for (const auto& str : strings) {
debugFontBuffer.addText(str.c_str(), 10, line, 0.75);
line += 20;
}
if (!debugFontBuffer.empty()) {
// draw debug info
VertexArrayObject debugFontArray;
debugFontArray.bind(*plainShader, debugFontBuffer, BUFFER_OFFSET(0));
plainShader->u_color = {{ 1.0f, 1.0f, 1.0f, 1.0f }};
lineWidth(4.0f * state.getPixelRatio());
MBGL_CHECK_ERROR(glDrawArrays(GL_LINES, 0, (GLsizei)debugFontBuffer.index()));
#ifndef GL_ES_VERSION_2_0
MBGL_CHECK_ERROR(glPointSize(2));
MBGL_CHECK_ERROR(glDrawArrays(GL_POINTS, 0, (GLsizei)debugFontBuffer.index()));
#endif
plainShader->u_color = {{ 0.0f, 0.0f, 0.0f, 1.0f }};
lineWidth(2.0f * state.getPixelRatio());
MBGL_CHECK_ERROR(glDrawArrays(GL_LINES, 0, (GLsizei)debugFontBuffer.index()));
}
MBGL_CHECK_ERROR(glEnable(GL_DEPTH_TEST));
}
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