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#include <mbgl/renderer/painter.hpp>
#include <mbgl/renderer/debug_bucket.hpp>
#include <mbgl/tile/tile.hpp>
#include <mbgl/tile/tile_data.hpp>
#include <mbgl/map/map_data.hpp>
#include <mbgl/shader/plain_shader.hpp>
#include <mbgl/util/string.hpp>
#include <mbgl/gl/debugging.hpp>
using namespace mbgl;
void Painter::renderTileDebug(const Tile& tile) {
MBGL_DEBUG_GROUP(std::string { "debug " } + std::string(tile.id));
assert(tile.data);
if (data.getDebug() != MapDebugOptions::NoDebug) {
prepareTile(tile);
renderDebugText(*tile.data, tile.matrix);
if (data.getDebug() & MapDebugOptions::TileBorders) {
renderDebugFrame(tile.matrix);
}
}
}
void Painter::renderDebugText(TileData& tileData, const mat4 &matrix) {
MBGL_DEBUG_GROUP("debug text");
config.depthTest = GL_FALSE;
if (!tileData.debugBucket || tileData.debugBucket->state != tileData.getState()
|| !(tileData.debugBucket->modified == tileData.modified)
|| !(tileData.debugBucket->expires == tileData.expires)
|| tileData.debugBucket->debugMode != data.getDebug()) {
tileData.debugBucket = std::make_unique<DebugBucket>(tileData.id, tileData.getState(), tileData.modified, tileData.expires, data.getDebug());
}
config.program = plainShader->getID();
plainShader->u_matrix = matrix;
// Draw white outline
plainShader->u_color = {{ 1.0f, 1.0f, 1.0f, 1.0f }};
config.lineWidth = 4.0f * data.pixelRatio;
tileData.debugBucket->drawLines(*plainShader, glObjectStore);
#ifndef GL_ES_VERSION_2_0
// Draw line "end caps"
MBGL_CHECK_ERROR(glPointSize(2));
tileData.debugBucket->drawPoints(*plainShader, glObjectStore);
#endif
// Draw black text.
plainShader->u_color = {{ 0.0f, 0.0f, 0.0f, 1.0f }};
config.lineWidth = 2.0f * data.pixelRatio;
tileData.debugBucket->drawLines(*plainShader, glObjectStore);
config.depthFunc.reset();
config.depthTest = GL_TRUE;
}
void Painter::renderDebugFrame(const mat4 &matrix) {
MBGL_DEBUG_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.
config.depthTest = GL_FALSE;
config.stencilOp.reset();
config.stencilTest = GL_TRUE;
config.program = plainShader->getID();
plainShader->u_matrix = matrix;
// draw tile outline
tileBorderArray.bind(*plainShader, tileBorderBuffer, BUFFER_OFFSET_0, glObjectStore);
plainShader->u_color = {{ 1.0f, 0.0f, 0.0f, 1.0f }};
config.lineWidth = 4.0f * data.pixelRatio;
MBGL_CHECK_ERROR(glDrawArrays(GL_LINE_STRIP, 0, (GLsizei)tileBorderBuffer.index()));
}
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