diff options
Diffstat (limited to 'src/mbgl/renderer/fill_bucket.cpp')
| -rw-r--r-- | src/mbgl/renderer/fill_bucket.cpp | 98 |
1 files changed, 16 insertions, 82 deletions
diff --git a/src/mbgl/renderer/fill_bucket.cpp b/src/mbgl/renderer/fill_bucket.cpp index cd4277cabc..2c69524c0d 100644 --- a/src/mbgl/renderer/fill_bucket.cpp +++ b/src/mbgl/renderer/fill_bucket.cpp @@ -30,11 +30,6 @@ using namespace style; struct GeometryTooLongException : std::exception {}; -FillBucket::FillBucket() { -} - -FillBucket::~FillBucket() = default; - void FillBucket::addGeometry(const GeometryCollection& geometry) { for (auto& polygon : classifyRings(geometry)) { // Optimize polygons with many interior rings for earcut tesselation. @@ -48,17 +43,20 @@ void FillBucket::addGeometry(const GeometryCollection& geometry) { throw GeometryTooLongException(); } + std::size_t startVertices = vertices.size(); + for (const auto& ring : polygon) { std::size_t nVertices = ring.size(); if (nVertices == 0) continue; - if (lineGroups.empty() || lineGroups.back().vertexLength + nVertices > 65535) - lineGroups.emplace_back(); + if (lineSegments.empty() || lineSegments.back().vertexLength + nVertices > 65535) { + lineSegments.emplace_back(vertices.size(), lines.size()); + } - auto& lineGroup = lineGroups.back(); - uint16_t lineIndex = lineGroup.vertexLength; + auto& lineSegment = lineSegments.back(); + uint16_t lineIndex = lineSegment.vertexLength; vertices.emplace_back(ring[0].x, ring[0].y); lines.emplace_back(static_cast<uint16_t>(lineIndex + nVertices - 1), @@ -70,8 +68,8 @@ void FillBucket::addGeometry(const GeometryCollection& geometry) { static_cast<uint16_t>(lineIndex + i)); } - lineGroup.vertexLength += nVertices; - lineGroup.indexLength += nVertices; + lineSegment.vertexLength += nVertices; + lineSegment.primitiveLength += nVertices; } std::vector<uint32_t> indices = mapbox::earcut(polygon); @@ -79,12 +77,12 @@ void FillBucket::addGeometry(const GeometryCollection& geometry) { std::size_t nIndicies = indices.size(); assert(nIndicies % 3 == 0); - if (triangleGroups.empty() || triangleGroups.back().vertexLength + totalVertices > 65535) { - triangleGroups.emplace_back(); + if (triangleSegments.empty() || triangleSegments.back().vertexLength + totalVertices > 65535) { + triangleSegments.emplace_back(startVertices, triangles.size()); } - auto& triangleGroup = triangleGroups.back(); - uint16_t triangleIndex = triangleGroup.vertexLength; + auto& triangleSegment = triangleSegments.back(); + uint16_t triangleIndex = triangleSegment.vertexLength; for (uint32_t i = 0; i < nIndicies; i += 3) { triangles.emplace_back(static_cast<uint16_t>(triangleIndex + indices[i]), @@ -92,8 +90,8 @@ void FillBucket::addGeometry(const GeometryCollection& geometry) { static_cast<uint16_t>(triangleIndex + indices[i + 2])); } - triangleGroup.vertexLength += totalVertices; - triangleGroup.indexLength += nIndicies / 3; + triangleSegment.vertexLength += totalVertices; + triangleSegment.primitiveLength += nIndicies / 3; } } @@ -114,71 +112,7 @@ void FillBucket::render(Painter& painter, } bool FillBucket::hasData() const { - return !triangleGroups.empty() || !lineGroups.empty(); -} - -bool FillBucket::needsClipping() const { - return true; -} - -void FillBucket::drawElements(FillShader& shader, - gl::Context& context, - PaintMode paintMode) { - GLbyte* vertex_index = BUFFER_OFFSET(0); - GLbyte* elements_index = BUFFER_OFFSET(0); - for (auto& group : triangleGroups) { - group.getVAO(shader, paintMode).bind( - shader, *vertexBuffer, *triangleIndexBuffer, vertex_index, context); - MBGL_CHECK_ERROR(glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(group.indexLength * 3), GL_UNSIGNED_SHORT, - elements_index)); - vertex_index += group.vertexLength * vertexBuffer->vertexSize; - elements_index += group.indexLength * triangleIndexBuffer->primitiveSize; - } -} - -void FillBucket::drawElements(FillPatternShader& shader, - gl::Context& context, - PaintMode paintMode) { - GLbyte* vertex_index = BUFFER_OFFSET(0); - GLbyte* elements_index = BUFFER_OFFSET(0); - for (auto& group : triangleGroups) { - group.getVAO(shader, paintMode).bind( - shader, *vertexBuffer, *triangleIndexBuffer, vertex_index, context); - MBGL_CHECK_ERROR(glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(group.indexLength * 3), GL_UNSIGNED_SHORT, - elements_index)); - vertex_index += group.vertexLength * vertexBuffer->vertexSize; - elements_index += group.indexLength * triangleIndexBuffer->primitiveSize; - } -} - -void FillBucket::drawVertices(FillOutlineShader& shader, - gl::Context& context, - PaintMode paintMode) { - GLbyte* vertex_index = BUFFER_OFFSET(0); - GLbyte* elements_index = BUFFER_OFFSET(0); - for (auto& group : lineGroups) { - group.getVAO(shader, paintMode).bind( - shader, *vertexBuffer, *lineIndexBuffer, vertex_index, context); - MBGL_CHECK_ERROR(glDrawElements(GL_LINES, static_cast<GLsizei>(group.indexLength * 2), GL_UNSIGNED_SHORT, - elements_index)); - vertex_index += group.vertexLength * vertexBuffer->vertexSize; - elements_index += group.indexLength * lineIndexBuffer->primitiveSize; - } -} - -void FillBucket::drawVertices(FillOutlinePatternShader& shader, - gl::Context& context, - PaintMode paintMode) { - GLbyte* vertex_index = BUFFER_OFFSET(0); - GLbyte* elements_index = BUFFER_OFFSET(0); - for (auto& group : lineGroups) { - group.getVAO(shader, paintMode).bind( - shader, *vertexBuffer, *lineIndexBuffer, vertex_index, context); - MBGL_CHECK_ERROR(glDrawElements(GL_LINES, static_cast<GLsizei>(group.indexLength * 2), GL_UNSIGNED_SHORT, - elements_index)); - vertex_index += group.vertexLength * vertexBuffer->vertexSize; - elements_index += group.indexLength * lineIndexBuffer->primitiveSize; - } + return !triangleSegments.empty() || !lineSegments.empty(); } } // namespace mbgl |